Update version to 0.15.1.beta2

Merge pull request #4484 from blazoncek/parallel-I2S
WWA strip support & parallel I2S for S2/S3 (bumping outputs from 5/4 to 12)
2025-04-19 20:37:23 +00:00 · 2025-02-22 18:02:31 +00:00 · 2025-02-22 18:44:10 +01:00 · 2025-02-22 17:49:10 +01:00 · 2025-02-22 11:21:27 +00:00 · 2025-02-22 11:21:09 +00:00
37 changed files with 1168 additions and 904 deletions
--- a/.gitignore
+++ b/.gitignore
@ -15,6 +15,7 @@ wled-update.sh

 /build_output/
 /node_modules/
+/logs/

 /wled00/extLibs
 /wled00/LittleFS
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -1,5 +1,23 @@
 ## WLED changelog

+#### Build 2412100
+-   WLED 0.15.0 release
+-   Usermod BME280: Fix "Unit of Measurement" for temperature
+-   WiFi reconnect bugfix (@blazoncek)
+
+#### Build 2411250
+-   WLED 0.15.0-rc1 release
+-   Add support for esp32S3_wroom2 (#4243 by @softhack007)
+-   Fix mixed LED SK6812 and ws2812b booloop (#4301 by @willmmiles)
+-   Improved FPS calculation (by DedeHai)
+-   Fix crashes when using HTTP API within MQTT (#4269 by @willmmiles)
+-   Fix array overflow in exploding_fireworks (#4120 by @willmmiles)
+-   Fix MQTT topic buffer length (#4293 by @WouterGritter)
+-   Fix SparkFunDMX fix for possible array bounds violation in DMX.write (by @softhack007)
+-   Allow TV Simulator on single LED segments (by @softhack007)
+-   Fix WLED_RELEASE_NAME (by @netmindz)
+
+
 #### Build 2410270
 -   WLED 0.15.0-b7 release
 -   Re-license the WLED project from MIT to EUPL (#4194 by @Aircoookie)
--- a/package-lock.json
+++ b/package-lock.json
@ -1,18 +1,21 @@
 {
  "name": "wled",
-  "version": "0.15.0-b7",
+  "version": "0.15.1.beta1",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "wled",
-      "version": "0.15.0-b7",
+      "version": "0.15.1.beta1",
      "license": "ISC",
      "dependencies": {
        "clean-css": "^5.3.3",
        "html-minifier-terser": "^7.2.0",
        "inliner": "^1.13.1",
-        "nodemon": "^3.0.2"
+        "nodemon": "^3.1.7"
+      },
+      "engines": {
+        "node": ">=20.0.0"
      }
    },
    "node_modules/@jridgewell/gen-mapping": {
--- a/package.json
+++ b/package.json
@ -1,6 +1,6 @@
 {
  "name": "wled",
-  "version": "0.15.0-b7",
+  "version": "0.15.1.beta2",
  "description": "Tools for WLED project",
  "main": "tools/cdata.js",
  "directories": {
--- a/pio-scripts/build_ui.py
+++ b/pio-scripts/build_ui.py
@ -1,3 +1,21 @@
-Import('env')
+Import("env")
+import shutil

-env.Execute("npm run build")
+node_ex = shutil.which("node")
+# Check if Node.js is installed and present in PATH if it failed, abort the build
+if node_ex is None:
+    print('\x1b[0;31;43m' + 'Node.js is not installed or missing from PATH html css js will not be processed check https://kno.wled.ge/advanced/compiling-wled/' + '\x1b[0m')
+    exitCode = env.Execute("null")
+    exit(exitCode)
+else:
+    # Install the necessary node packages for the pre-build asset bundling script
+    print('\x1b[6;33;42m' + 'Installing node packages' + '\x1b[0m')
+    env.Execute("npm install")
+
+    # Call the bundling script
+    exitCode = env.Execute("npm run build")
+
+    # If it failed, abort the build
+    if (exitCode):
+      print('\x1b[0;31;43m' + 'npm run build fails check https://kno.wled.ge/advanced/compiling-wled/' + '\x1b[0m')
+      exit(exitCode)
--- a/platformio.ini
+++ b/platformio.ini
@ -138,7 +138,7 @@ lib_compat_mode = strict
 lib_deps =
    fastled/FastLED @ 3.6.0
    IRremoteESP8266 @ 2.8.2
-    makuna/NeoPixelBus @ 2.8.0
+    makuna/NeoPixelBus @ 2.8.3
    #https://github.com/makuna/NeoPixelBus.git#CoreShaderBeta
    https://github.com/Aircoookie/ESPAsyncWebServer.git#v2.2.1
  # for I2C interface
@ -176,6 +176,7 @@ lib_deps =
 extra_scripts = ${scripts_defaults.extra_scripts}

 [esp8266]
+build_unflags = ${common.build_unflags}
 build_flags =
  -DESP8266
  -DFP_IN_IROM
@ -242,6 +243,7 @@ lib_deps_compat =
 #platform = https://github.com/tasmota/platform-espressif32/releases/download/v2.0.2.3/platform-espressif32-2.0.2.3.zip
 platform = espressif32@3.5.0
 platform_packages = framework-arduinoespressif32 @ https://github.com/Aircoookie/arduino-esp32.git#1.0.6.4
+build_unflags = ${common.build_unflags}
 build_flags = -g
  -DARDUINO_ARCH_ESP32
  #-DCONFIG_LITTLEFS_FOR_IDF_3_2
@ -263,6 +265,7 @@ lib_deps =
 AR_build_flags = -D USERMOD_AUDIOREACTIVE 
  -D sqrt_internal=sqrtf ;; -fsingle-precision-constant ;; forces ArduinoFFT to use float math (2x faster)
 AR_lib_deps = kosme/arduinoFFT @ 2.0.1
+board_build.partitions = ${esp32.default_partitions}   ;; default partioning for 4MB Flash - can be overridden in build envs

 [esp32_idf_V4]
 ;; experimental build environment for ESP32 using ESP-IDF 4.4.x / arduino-esp32 v2.0.5
@ -272,6 +275,7 @@ AR_lib_deps = kosme/arduinoFFT @ 2.0.1
 ;; You need to completely erase your device (esptool erase_flash) first, then install the "V4" build from VSCode+platformio.
 platform = espressif32@ ~6.3.2
 platform_packages = platformio/framework-arduinoespressif32 @ 3.20009.0    ;; select arduino-esp32 v2.0.9 (arduino-esp32 2.0.10 thru 2.0.14 are buggy so avoid them)
+build_unflags = ${common.build_unflags}
 build_flags = -g
  -Wshadow=compatible-local ;; emit warning in case a local variable "shadows" another local one
  -DARDUINO_ARCH_ESP32 -DESP32
@ -280,11 +284,13 @@ build_flags = -g
 lib_deps =
  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
  ${env.lib_deps}
+board_build.partitions = ${esp32.default_partitions}   ;; default partioning for 4MB Flash - can be overridden in build envs

 [esp32s2]
 ;; generic definitions for all ESP32-S2 boards
 platform = espressif32@ ~6.3.2
 platform_packages = platformio/framework-arduinoespressif32 @ 3.20009.0    ;; select arduino-esp32 v2.0.9 (arduino-esp32 2.0.10 thru 2.0.14 are buggy so avoid them)
+build_unflags = ${common.build_unflags}
 build_flags = -g
  -DARDUINO_ARCH_ESP32
  -DARDUINO_ARCH_ESP32S2
@ -298,11 +304,13 @@ build_flags = -g
 lib_deps =
  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
  ${env.lib_deps}
+board_build.partitions = ${esp32.default_partitions}   ;; default partioning for 4MB Flash - can be overridden in build envs

 [esp32c3]
 ;; generic definitions for all ESP32-C3 boards
 platform = espressif32@ ~6.3.2
 platform_packages = platformio/framework-arduinoespressif32 @ 3.20009.0    ;; select arduino-esp32 v2.0.9 (arduino-esp32 2.0.10 thru 2.0.14 are buggy so avoid them)
+build_unflags = ${common.build_unflags}
 build_flags = -g
  -DARDUINO_ARCH_ESP32
  -DARDUINO_ARCH_ESP32C3
@ -315,11 +323,13 @@ build_flags = -g
 lib_deps =
  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
  ${env.lib_deps}
+board_build.partitions = ${esp32.default_partitions}   ;; default partioning for 4MB Flash - can be overridden in build envs

 [esp32s3]
 ;; generic definitions for all ESP32-S3 boards
 platform = espressif32@ ~6.3.2
 platform_packages = platformio/framework-arduinoespressif32 @ 3.20009.0    ;; select arduino-esp32 v2.0.9 (arduino-esp32 2.0.10 thru 2.0.14 are buggy so avoid them)
+build_unflags = ${common.build_unflags}
 build_flags = -g
  -DESP32
  -DARDUINO_ARCH_ESP32
@ -333,6 +343,7 @@ build_flags = -g
 lib_deps =
  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
  ${env.lib_deps}
+board_build.partitions = ${esp32.large_partitions}   ;; default partioning for 8MB flash - can be overridden in build envs


 # ------------------------------------------------------------------------------
--- a/platformio_override.sample.ini
+++ b/platformio_override.sample.ini
@ -5,7 +5,7 @@
 # Please visit documentation: https://docs.platformio.org/page/projectconf.html

 [platformio]
-default_envs = WLED_tasmota_1M  # define as many as you need
+default_envs = WLED_generic8266_1M, esp32dev_V4_dio80  # put the name(s) of your own build environment here. You can define as many as you need

 #----------
 # SAMPLE
@ -28,8 +28,8 @@ lib_deps = ${esp8266.lib_deps}
 ;  robtillaart/SHT85@~0.3.3
 ;  ;gmag11/QuickESPNow @ ~0.7.0 # will also load QuickDebug
 ;  https://github.com/blazoncek/QuickESPNow.git#optional-debug  ;; exludes debug library
-;  ${esp32.AR_lib_deps} ;; used for USERMOD_AUDIOREACTIVE
 ;  bitbank2/PNGdec@^1.0.1 ;; used for POV display uncomment following
+;  ${esp32.AR_lib_deps} ;; needed for USERMOD_AUDIOREACTIVE

 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} ${esp8266.build_flags}
@ -141,7 +141,8 @@ build_flags = ${common.build_flags} ${esp8266.build_flags}
 ;   -D PIR_SENSOR_MAX_SENSORS=2 # max allowable sensors (uses OR logic for triggering)
 ;
 ; Use Audioreactive usermod and configure I2S microphone
-;   -D USERMOD_AUDIOREACTIVE
+;   ${esp32.AR_build_flags} ;; default flags required to properly configure ArduinoFFT
+;   ;; don't forget to add ArduinoFFT to your libs_deps: ${esp32.AR_lib_deps}
 ;   -D AUDIOPIN=-1
 ;   -D DMTYPE=1     # 0-analog/disabled, 1-I2S generic, 2-ES7243, 3-SPH0645, 4-I2S+mclk, 5-I2S PDM
 ;   -D I2S_SDPIN=36
@ -157,17 +158,22 @@ build_flags = ${common.build_flags} ${esp8266.build_flags}
 ;   -D USERMOD_POV_DISPLAY
 ; Use built-in or custom LED as a status indicator (assumes LED is connected to GPIO16)
 ;   -D STATUSLED=16
-;   
+;
 ; set the name of the module - make sure there is a quote-backslash-quote before the name and a backslash-quote-quote after the name
 ;   -D SERVERNAME="\"WLED\""
-;   
+;
 ; set the number of LEDs
-;   -D DEFAULT_LED_COUNT=30
+;   -D PIXEL_COUNTS=30
 ; or this for multiple outputs
 ;   -D PIXEL_COUNTS=30,30
 ;
 ; set the default LED type
-;   -D DEFAULT_LED_TYPE=22    # see const.h (TYPE_xxxx)
+;   -D LED_TYPES=22    # see const.h (TYPE_xxxx)
+; or this for multiple outputs
+;   -D LED_TYPES=TYPE_SK6812_RGBW,TYPE_WS2812_RGB
+;
+; set default color order of your led strip
+;   -D DEFAULT_LED_COLOR_ORDER=COL_ORDER_GRB
 ;
 ; set milliampere limit when using ESP power pin (or inadequate PSU) to power LEDs
 ;   -D ABL_MILLIAMPS_DEFAULT=850
@ -176,9 +182,6 @@ build_flags = ${common.build_flags} ${esp8266.build_flags}
 ; enable IR by setting remote type
 ;   -D IRTYPE=0   # 0 Remote disabled | 1 24-key RGB | 2 24-key with CT | 3 40-key blue | 4 40-key RGB | 5 21-key RGB | 6 6-key black | 7 9-key red | 8 JSON remote
 ;   
-; set default color order of your led strip
-;   -D DEFAULT_LED_COLOR_ORDER=COL_ORDER_GRB
-;
 ; use PSRAM on classic ESP32 rev.1 (rev.3 or above has no issues)
 ;   -DBOARD_HAS_PSRAM -mfix-esp32-psram-cache-issue   # needed only for classic ESP32 rev.1
 ;
@ -236,14 +239,13 @@ build_flags = ${common.build_flags} ${esp8266.build_flags} -D DATA_PINS=1 -D WLE
 lib_deps = ${esp8266.lib_deps}

 [env:esp32dev_qio80]
+extends = env:esp32dev  # we want to extend the existing esp32dev environment (and define only updated options)
 board = esp32dev
-platform = ${esp32.platform}
-platform_packages = ${esp32.platform_packages}
-build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} ${esp32.build_flags} #-D WLED_DISABLE_BROWNOUT_DET
+  ${esp32.AR_build_flags} ;; optional - includes USERMOD_AUDIOREACTIVE
 lib_deps = ${esp32.lib_deps}
+  ${esp32.AR_lib_deps} ;; needed for USERMOD_AUDIOREACTIVE
 monitor_filters = esp32_exception_decoder
-board_build.partitions = ${esp32.default_partitions}
 board_build.f_flash = 80000000L
 board_build.flash_mode = qio

@ -251,26 +253,25 @@ board_build.flash_mode = qio
 ;; experimental ESP32 env using ESP-IDF V4.4.x
 ;; Warning: this build environment is not stable!!
 ;; please erase your device before installing.
+extends = esp32_idf_V4  # based on newer "esp-idf V4" platform environment
 board = esp32dev
-platform = ${esp32_idf_V4.platform}
-platform_packages = ${esp32_idf_V4.platform_packages}
-build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags}  ${esp32_idf_V4.build_flags} #-D WLED_DISABLE_BROWNOUT_DET
+  ${esp32.AR_build_flags} ;; includes USERMOD_AUDIOREACTIVE
 lib_deps = ${esp32_idf_V4.lib_deps}
+  ${esp32.AR_lib_deps} ;; needed for USERMOD_AUDIOREACTIVE
 monitor_filters = esp32_exception_decoder
-board_build.partitions = ${esp32_idf_V4.default_partitions}
+board_build.partitions = ${esp32.default_partitions}  ;; if you get errors about "out of program space", change this to ${esp32.extended_partitions} or even ${esp32.big_partitions}
 board_build.f_flash = 80000000L
 board_build.flash_mode = dio

 [env:esp32s2_saola]
+extends = esp32s2
 board = esp32-s2-saola-1
 platform = ${esp32s2.platform}
 platform_packages = ${esp32s2.platform_packages}
 framework = arduino
-board_build.partitions = tools/WLED_ESP32_4MB_1MB_FS.csv
 board_build.flash_mode = qio
 upload_speed = 460800
-build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} ${esp32s2.build_flags}
  ;-DLOLIN_WIFI_FIX ;; try this in case Wifi does not work
  -DARDUINO_USB_CDC_ON_BOOT=1
@ -307,7 +308,7 @@ platform = ${common.platform_wled_default}
 platform_packages = ${common.platform_packages}
 board_build.ldscript = ${common.ldscript_4m1m}
 build_unflags = ${common.build_unflags}
-build_flags = ${common.build_flags} ${esp8266.build_flags} -D WLED_USE_SHOJO_PCB
+build_flags = ${common.build_flags} ${esp8266.build_flags} -D WLED_USE_SHOJO_PCB ;; NB: WLED_USE_SHOJO_PCB is not used anywhere in the source code. Not sure why its needed.
 lib_deps = ${esp8266.lib_deps}

 [env:d1_mini_debug]
@ -362,35 +363,48 @@ board_upload.flash_size = 2MB
 board_upload.maximum_size = 2097152

 [env:wemos_shield_esp32]
+extends = esp32              ;; use default esp32 platform
 board = esp32dev
-platform = ${esp32.platform}
-platform_packages = ${esp32.platform_packages}
 upload_speed = 460800
-build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} ${esp32.build_flags}
+  -D WLED_RELEASE_NAME=\"ESP32_wemos_shield\"
  -D DATA_PINS=16
  -D RLYPIN=19
  -D BTNPIN=17
  -D IRPIN=18
-  -D UWLED_USE_MY_CONFIG
+  -UWLED_USE_MY_CONFIG
  -D USERMOD_DALLASTEMPERATURE
  -D USERMOD_FOUR_LINE_DISPLAY
  -D TEMPERATURE_PIN=23
-  -D USERMOD_AUDIOREACTIVE
+  ${esp32.AR_build_flags} ;; includes USERMOD_AUDIOREACTIVE
 lib_deps = ${esp32.lib_deps}
-  OneWire@~2.3.5
-  olikraus/U8g2 @ ^2.28.8
-  https://github.com/blazoncek/arduinoFFT.git
+  OneWire@~2.3.5          ;; needed for USERMOD_DALLASTEMPERATURE
+  olikraus/U8g2 @ ^2.28.8 ;; needed for USERMOD_FOUR_LINE_DISPLAY
+  ${esp32.AR_lib_deps}    ;; needed for USERMOD_AUDIOREACTIVE
 board_build.partitions = ${esp32.default_partitions}

-[env:m5atom]
-board = esp32dev
-build_unflags = ${common.build_unflags}
-build_flags = ${common.build_flags} ${esp32.build_flags} -D DATA_PINS=27 -D BTNPIN=39
+[env:esp32_pico-D4]
+extends = esp32              ;; use default esp32 platform
+board = pico32               ;; pico32-D4 is different from the standard esp32dev
+                             ;; hardware details from https://github.com/srg74/WLED-ESP32-pico
+build_flags = ${common.build_flags} ${esp32.build_flags}
+  -D WLED_RELEASE_NAME=\"pico32-D4\" -D SERVERNAME='"WLED-pico32"'
+  -D WLED_DISABLE_ADALIGHT   ;; no serial-to-USB chip on this board - better to disable serial protocols
+  -D DATA_PINS=2,18          ;; LED pins
+  -D RLYPIN=19 -D BTNPIN=0 -D IRPIN=-1 ;; no default pin for IR
+  ${esp32.AR_build_flags}    ;; include USERMOD_AUDIOREACTIVE
+  -D UM_AUDIOREACTIVE_ENABLE ;; enable AR by default
+  ;; Audioreactive settings for on-board microphone (ICS-43432)
+  -D SR_DMTYPE=1 -D I2S_SDPIN=25 -D I2S_WSPIN=15 -D I2S_CKPIN=14
+  -D SR_SQUELCH=5 -D SR_GAIN=30
 lib_deps = ${esp32.lib_deps}
-platform = ${esp32.platform}
-platform_packages = ${esp32.platform_packages}
+  ${esp32.AR_lib_deps}       ;; needed for USERMOD_AUDIOREACTIVE
 board_build.partitions = ${esp32.default_partitions}
+board_build.f_flash = 80000000L
+
+[env:m5atom]
+extends = env:esp32dev  # we want to extend the existing esp32dev environment (and define only updated options)
+build_flags = ${common.build_flags} ${esp32.build_flags} -D DATA_PINS=27 -D BTNPIN=39

 [env:sp501e]
 board = esp_wroom_02
@ -413,7 +427,7 @@ platform_packages = ${common.platform_packages}
 board_build.ldscript = ${common.ldscript_2m512k}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} ${esp8266.build_flags} -D BTNPIN=-1 -D RLYPIN=-1 -D DATA_PINS=4,12,14,13,5
-                                            -D DEFAULT_LED_TYPE=TYPE_ANALOG_5CH -D WLED_DISABLE_INFRARED -D WLED_MAX_CCT_BLEND=0
+                                            -D LED_TYPES=TYPE_ANALOG_5CH -D WLED_DISABLE_INFRARED -D WLED_MAX_CCT_BLEND=0
 lib_deps = ${esp8266.lib_deps}

 [env:Athom_15w_RGBCW]        ;15w bulb
@ -423,7 +437,7 @@ platform_packages = ${common.platform_packages}
 board_build.ldscript = ${common.ldscript_2m512k}
 build_unflags = ${common.build_unflags}
 build_flags = ${common.build_flags} ${esp8266.build_flags} -D BTNPIN=-1 -D RLYPIN=-1 -D DATA_PINS=4,12,14,5,13
-                                            -D DEFAULT_LED_TYPE=TYPE_ANALOG_5CH -D WLED_DISABLE_INFRARED -D WLED_MAX_CCT_BLEND=0 -D WLED_USE_IC_CCT
+                                            -D LED_TYPES=TYPE_ANALOG_5CH -D WLED_DISABLE_INFRARED -D WLED_MAX_CCT_BLEND=0 -D WLED_USE_IC_CCT
 lib_deps = ${esp8266.lib_deps}

 [env:Athom_3Pin_Controller]        ;small controller with only data
@ -489,9 +503,8 @@ lib_deps = ${esp8266.lib_deps}
 # EleksTube-IPS
 # ------------------------------------------------------------------------------
 [env:elekstube_ips]
+extends = esp32              ;; use default esp32 platform
 board = esp32dev
-platform = ${esp32.platform}
-platform_packages = ${esp32.platform_packages}
 upload_speed = 921600
 build_flags = ${common.build_flags} ${esp32.build_flags} -D WLED_DISABLE_BROWNOUT_DET -D WLED_DISABLE_INFRARED
  -D USERMOD_RTC
@ -499,7 +512,7 @@ build_flags = ${common.build_flags} ${esp32.build_flags} -D WLED_DISABLE_BROWNOU
  -D DATA_PINS=12
  -D RLYPIN=27
  -D BTNPIN=34
-  -D DEFAULT_LED_COUNT=6
+  -D PIXEL_COUNTS=6
  # Display config
  -D ST7789_DRIVER
  -D TFT_WIDTH=135
@ -515,5 +528,4 @@ build_flags = ${common.build_flags} ${esp32.build_flags} -D WLED_DISABLE_BROWNOU
 monitor_filters = esp32_exception_decoder
 lib_deps =
  ${esp32.lib_deps}
-  TFT_eSPI @ ^2.3.70
-board_build.partitions = ${esp32.default_partitions}
+  TFT_eSPI @ 2.5.33  ;; this is the last version that compiles with the WLED default framework - newer versions require platform = espressif32 @ ^6.3.2
--- a/tools/AutoCubeMap.xlsx
+++ b/tools/AutoCubeMap.xlsx
--- a/usermods/BME280_v2/usermod_bme280.h
+++ b/usermods/BME280_v2/usermod_bme280.h
@ -444,6 +444,7 @@ public:
    configComplete &= getJsonValue(top[F("PublishAlways")], PublishAlways, false);
    configComplete &= getJsonValue(top[F("UseCelsius")], UseCelsius, true);
    configComplete &= getJsonValue(top[F("HomeAssistantDiscovery")], HomeAssistantDiscovery, false);
+    tempScale = UseCelsius ? "°C" : "°F";

    DEBUG_PRINT(FPSTR(_name));
    if (!initDone) {
--- a/usermods/audioreactive/audio_reactive.h
+++ b/usermods/audioreactive/audio_reactive.h
@ -75,7 +75,7 @@ static uint8_t  soundAgc = 0;                   // Automagic gain control: 0 - n
 //static float    volumeSmth = 0.0f;              // either sampleAvg or sampleAgc depending on soundAgc; smoothed sample
 static float FFT_MajorPeak = 1.0f;              // FFT: strongest (peak) frequency
 static float FFT_Magnitude = 0.0f;              // FFT: volume (magnitude) of peak frequency
-static bool samplePeak = false;      // Boolean flag for peak - used in effects. Responding routine may reset this flag. Auto-reset after strip.getMinShowDelay()
+static bool samplePeak = false;      // Boolean flag for peak - used in effects. Responding routine may reset this flag. Auto-reset after strip.getFrameTime()
 static bool udpSamplePeak = false;   // Boolean flag for peak. Set at the same time as samplePeak, but reset by transmitAudioData
 static unsigned long timeOfPeak = 0; // time of last sample peak detection.
 static uint8_t fftResult[NUM_GEQ_CHANNELS]= {0};// Our calculated freq. channel result table to be used by effects
@ -536,8 +536,8 @@ static void detectSamplePeak(void) {
 #endif

 static void autoResetPeak(void) {
-  uint16_t MinShowDelay = MAX(50, strip.getMinShowDelay());  // Fixes private class variable compiler error. Unsure if this is the correct way of fixing the root problem. -THATDONFC
-  if (millis() - timeOfPeak > MinShowDelay) {          // Auto-reset of samplePeak after a complete frame has passed.
+  uint16_t peakDelay = max(uint16_t(50), strip.getFrameTime());
+  if (millis() - timeOfPeak > peakDelay) {          // Auto-reset of samplePeak after at least one complete frame has passed.
    samplePeak = false;
    if (audioSyncEnabled == 0) udpSamplePeak = false;  // this is normally reset by transmitAudioData
  }
--- a/usermods/rgb-rotary-encoder/readme.md
+++ b/usermods/rgb-rotary-encoder/readme.md
@ -9,7 +9,7 @@ The actual / original code that controls the LED modes is from Adam Zeloof. I ta
 It was quite a bit more work than I hoped, but I got there eventually :)

 ## Requirements
-* "ESP Rotary" by Lennart Hennigs, v1.5.0 or higher: https://github.com/LennartHennigs/ESPRotary
+* "ESP Rotary" by Lennart Hennigs, v2.1.1 or higher: https://github.com/LennartHennigs/ESPRotary

 ## Usermod installation
 Simply copy the below block (build task) to your `platformio_override.ini` and compile WLED using this new build task. Or use an existing one and add the buildflag `-D RGB_ROTARY_ENCODER`.
@ -20,7 +20,7 @@ ESP32:
 extends = env:esp32dev
 build_flags = ${common.build_flags_esp32} -D WLED_RELEASE_NAME=ESP32 -D RGB_ROTARY_ENCODER
 lib_deps = ${esp32.lib_deps}
-    lennarthennigs/ESP Rotary@^1.5.0
+    lennarthennigs/ESP Rotary@^2.1.1
 ```

 ESP8266 / D1 Mini:
@ -29,7 +29,7 @@ ESP8266 / D1 Mini:
 extends = env:d1_mini
 build_flags = ${common.build_flags_esp8266} -D RGB_ROTARY_ENCODER
 lib_deps = ${esp8266.lib_deps}
-    lennarthennigs/ESP Rotary@^1.5.0
+    lennarthennigs/ESP Rotary@^2.1.1
 ```

 ## How to connect the board to your ESP
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@ -600,11 +600,12 @@ static const char _data_FX_MODE_TWINKLE[] PROGMEM = "Twinkle@!,!;!,!;!;;m12=0";
 * Dissolve function
 */
 uint16_t dissolve(uint32_t color) {
-  unsigned dataSize = (SEGLEN+7) >> 3; //1 bit per LED
+  unsigned dataSize = sizeof(uint32_t) * SEGLEN;
  if (!SEGENV.allocateData(dataSize)) return mode_static(); //allocation failed
+  uint32_t* pixels = reinterpret_cast<uint32_t*>(SEGENV.data);

  if (SEGENV.call == 0) {
-    memset(SEGMENT.data, 0xFF, dataSize); // start by fading pixels up
+    for (unsigned i = 0; i < SEGLEN; i++) pixels[i] = SEGCOLOR(1);
    SEGENV.aux0 = 1;
  }

@ -612,33 +613,26 @@ uint16_t dissolve(uint32_t color) {
    if (random8() <= SEGMENT.intensity) {
      for (size_t times = 0; times < 10; times++) { //attempt to spawn a new pixel 10 times
        unsigned i = random16(SEGLEN);
-        unsigned index = i >> 3;
-        unsigned bitNum = i & 0x07;
-        bool fadeUp = bitRead(SEGENV.data[index], bitNum);
        if (SEGENV.aux0) { //dissolve to primary/palette
-          if (fadeUp) {
-            if (color == SEGCOLOR(0)) {
-              SEGMENT.setPixelColor(i, SEGMENT.color_from_palette(i, true, PALETTE_SOLID_WRAP, 0));
-            } else {
-              SEGMENT.setPixelColor(i, color);
-            }
-            bitWrite(SEGENV.data[index], bitNum, false);
+          if (pixels[i] == SEGCOLOR(1)) {
+            pixels[i] = color == SEGCOLOR(0) ? SEGMENT.color_from_palette(i, true, PALETTE_SOLID_WRAP, 0) : color;
            break; //only spawn 1 new pixel per frame per 50 LEDs
          }
        } else { //dissolve to secondary
-          if (!fadeUp) {
-            SEGMENT.setPixelColor(i, SEGCOLOR(1)); break;
-            bitWrite(SEGENV.data[index], bitNum, true);
+          if (pixels[i] != SEGCOLOR(1)) {
+            pixels[i] = SEGCOLOR(1);
+            break;
          }
        }
      }
    }
  }
+  // fix for #4401
+  for (unsigned i = 0; i < SEGLEN; i++) SEGMENT.setPixelColor(i, pixels[i]);

  if (SEGENV.step > (255 - SEGMENT.speed) + 15U) {
    SEGENV.aux0 = !SEGENV.aux0;
    SEGENV.step = 0;
-    memset(SEGMENT.data, (SEGENV.aux0 ? 0xFF : 0), dataSize); // switch fading
  } else {
    SEGENV.step++;
  }
@ -1097,7 +1091,7 @@ uint16_t mode_running_random(void) {

  unsigned z = it % zoneSize;
  bool nzone = (!z && it != SEGENV.aux1);
-  for (unsigned i=SEGLEN-1; i > 0; i--) {
+  for (int i=SEGLEN-1; i >= 0; i--) {
    if (nzone || z >= zoneSize) {
      unsigned lastrand = PRNG16 >> 8;
      int16_t diff = 0;
@ -1441,7 +1435,7 @@ uint16_t mode_fairy() {
    if (z == zones-1) flashersInZone = numFlashers-(flashersInZone*(zones-1));

    for (unsigned f = firstFlasher; f < firstFlasher + flashersInZone; f++) {
-      unsigned stateTime = now16 - flashers[f].stateStart;
+      unsigned stateTime = uint16_t(now16 - flashers[f].stateStart);
      //random on/off time reached, switch state
      if (stateTime > flashers[f].stateDur * 10) {
        flashers[f].stateOn = !flashers[f].stateOn;
@ -1500,7 +1494,7 @@ uint16_t mode_fairytwinkle() {
  unsigned maxDur = riseFallTime/100 + ((255 - SEGMENT.intensity) >> 2) + 13 + ((255 - SEGMENT.intensity) >> 1);

  for (int f = 0; f < SEGLEN; f++) {
-    unsigned stateTime = now16 - flashers[f].stateStart;
+    uint16_t stateTime = now16 - flashers[f].stateStart;
    //random on/off time reached, switch state
    if (stateTime > flashers[f].stateDur * 100) {
      flashers[f].stateOn = !flashers[f].stateOn;
@ -1745,7 +1739,7 @@ uint16_t mode_random_chase(void) {
  uint32_t color = SEGENV.step;
  random16_set_seed(SEGENV.aux0);

-  for (unsigned i = SEGLEN -1; i > 0; i--) {
+  for (int i = SEGLEN -1; i >= 0; i--) {
    uint8_t r = random8(6) != 0 ? (color >> 16 & 0xFF) : random8();
    uint8_t g = random8(6) != 0 ? (color >> 8  & 0xFF) : random8();
    uint8_t b = random8(6) != 0 ? (color       & 0xFF) : random8();
@ -1798,7 +1792,7 @@ uint16_t mode_oscillate(void) {
    // if the counter has increased, move the oscillator by the random step
    if (it != SEGENV.step) oscillators[i].pos += oscillators[i].dir * oscillators[i].speed;
    oscillators[i].size = SEGLEN/(3+SEGMENT.intensity/8);
-    if((oscillators[i].dir == -1) && (oscillators[i].pos <= 0)) {
+    if((oscillators[i].dir == -1) && (oscillators[i].pos > SEGLEN << 1)) { // use integer overflow
      oscillators[i].pos = 0;
      oscillators[i].dir = 1;
      // make bigger steps for faster speeds
@ -1814,8 +1808,8 @@ uint16_t mode_oscillate(void) {
  for (unsigned i = 0; i < SEGLEN; i++) {
    uint32_t color = BLACK;
    for (unsigned j = 0; j < numOscillators; j++) {
-      if(i >= (unsigned)oscillators[j].pos - oscillators[j].size && i <= oscillators[j].pos + oscillators[j].size) {
-        color = (color == BLACK) ? SEGCOLOR(j) : color_blend(color, SEGCOLOR(j), 128);
+      if((int)i >= (int)oscillators[j].pos - oscillators[j].size && i <= oscillators[j].pos + oscillators[j].size) {
+        color = (color == BLACK) ? SEGCOLOR(j) : color_blend(color, SEGCOLOR(j), uint8_t(128));
      }
    }
    SEGMENT.setPixelColor(i, color);
@ -2003,7 +1997,7 @@ uint16_t mode_palette() {
      const mathType sourceX = xtSinTheta + ytCosTheta + centerX;
      // The computation was scaled just right so that the result should always be in range [0, maxXOut], but enforce this anyway
      // to account for imprecision. Then scale it so that the range is [0, 255], which we can use with the palette.
-      int colorIndex = (std::min(std::max(sourceX, mathType(0)), maxXOut * sInt16Scale) * 255) / (sInt16Scale * maxXOut);
+      int colorIndex = (std::min(std::max(sourceX, mathType(0)), maxXOut * sInt16Scale) * wideMathType(255)) / (sInt16Scale * maxXOut);
      // inputSize determines by how much we want to scale the palette:
      // values < 128 display a fraction of a palette,
      // values > 128 display multiple palettes.
@ -2565,11 +2559,11 @@ static CRGB twinklefox_one_twinkle(uint32_t ms, uint8_t salt, bool cat)
 {
  // Overall twinkle speed (changed)
  unsigned ticks = ms / SEGENV.aux0;
-  unsigned fastcycle8 = ticks;
-  unsigned slowcycle16 = (ticks >> 8) + salt;
+  unsigned fastcycle8 = uint8_t(ticks);
+  uint16_t slowcycle16 = (ticks >> 8) + salt;
  slowcycle16 += sin8_t(slowcycle16);
  slowcycle16 = (slowcycle16 * 2053) + 1384;
-  unsigned slowcycle8 = (slowcycle16 & 0xFF) + (slowcycle16 >> 8);
+  uint8_t slowcycle8 = (slowcycle16 & 0xFF) + (slowcycle16 >> 8);

  // Overall twinkle density.
  // 0 (NONE lit) to 8 (ALL lit at once).
@ -5170,7 +5164,7 @@ uint16_t mode_2Dgameoflife(void) { // Written by Ewoud Wijma, inspired by https:
        neighbors++;
        bool colorFound = false;
        int k;
-        for (k=0; k<9 && colorsCount[i].count != 0; k++)
+        for (k=0; k<9 && colorsCount[k].count != 0; k++)
          if (colorsCount[k].color == prevLeds[xy]) {
            colorsCount[k].count++;
            colorFound = true;
@ -6639,14 +6633,16 @@ static const char _data_FX_MODE_JUGGLES[] PROGMEM = "Juggles@!,# of balls;!,!;!;
 //   * MATRIPIX     //
 //////////////////////
 uint16_t mode_matripix(void) {                  // Matripix. By Andrew Tuline.
-  if (SEGLEN == 1) return mode_static();
-  // even with 1D effect we have to take logic for 2D segments for allocation as fill_solid() fills whole segment
+  // effect can work on single pixels, we just lose the shifting effect
+  unsigned dataSize = sizeof(uint32_t) * SEGLEN;
+  if (!SEGENV.allocateData(dataSize)) return mode_static(); //allocation failed
+  uint32_t* pixels = reinterpret_cast<uint32_t*>(SEGENV.data);

  um_data_t *um_data = getAudioData();
  int volumeRaw    = *(int16_t*)um_data->u_data[1];

  if (SEGENV.call == 0) {
-    SEGMENT.fill(BLACK);
+    for (unsigned i = 0; i < SEGLEN; i++) pixels[i] = BLACK;   // may not be needed as resetIfRequired() clears buffer
  }

  uint8_t secondHand = micros()/(256-SEGMENT.speed)/500 % 16;
@ -6654,8 +6650,14 @@ uint16_t mode_matripix(void) {                  // Matripix. By Andrew Tuline.
    SEGENV.aux0 = secondHand;

    int pixBri = volumeRaw * SEGMENT.intensity / 64;
-    for (int i = 0; i < SEGLEN-1; i++) SEGMENT.setPixelColor(i, SEGMENT.getPixelColor(i+1)); // shift left
-    SEGMENT.setPixelColor(SEGLEN-1, color_blend(SEGCOLOR(1), SEGMENT.color_from_palette(strip.now, false, PALETTE_SOLID_WRAP, 0), pixBri));
+    unsigned k = SEGLEN-1;
+    // loop will not execute if SEGLEN equals 1
+    for (unsigned i = 0; i < k; i++) {
+      pixels[i] = pixels[i+1]; // shift left
+      SEGMENT.setPixelColor(i, pixels[i]);
+    }
+    pixels[k] = color_blend(SEGCOLOR(1), SEGMENT.color_from_palette(strip.now, false, PALETTE_SOLID_WRAP, 0), pixBri);
+    SEGMENT.setPixelColor(k, pixels[k]);
  }

  return FRAMETIME;
@ -7283,8 +7285,11 @@ static const char _data_FX_MODE_ROCKTAVES[] PROGMEM = "Rocktaves@;!,!;!;01f;m12=
 // Combines peak detection with FFT_MajorPeak and FFT_Magnitude.
 uint16_t mode_waterfall(void) {                   // Waterfall. By: Andrew Tuline
  // effect can work on single pixels, we just lose the shifting effect
-  
-  um_data_t *um_data = getAudioData();
+  unsigned dataSize = sizeof(uint32_t) * SEGLEN;
+  if (!SEGENV.allocateData(dataSize)) return mode_static(); //allocation failed
+  uint32_t* pixels = reinterpret_cast<uint32_t*>(SEGENV.data);
+
+  um_data_t *um_data    = getAudioData();
  uint8_t samplePeak    = *(uint8_t*)um_data->u_data[3];
  float   FFT_MajorPeak = *(float*)  um_data->u_data[4];
  uint8_t *maxVol       =  (uint8_t*)um_data->u_data[6];
@ -7294,7 +7299,7 @@ uint16_t mode_waterfall(void) {                   // Waterfall. By: Andrew Tulin
  if (FFT_MajorPeak < 1) FFT_MajorPeak = 1;                                         // log10(0) is "forbidden" (throws exception)

  if (SEGENV.call == 0) {
-    SEGMENT.fill(BLACK);
+    for (unsigned i = 0; i < SEGLEN; i++) pixels[i] = BLACK;   // may not be needed as resetIfRequired() clears buffer
    SEGENV.aux0 = 255;
    SEGMENT.custom1 = *binNum;
    SEGMENT.custom2 = *maxVol * 2;
@ -7311,13 +7316,18 @@ uint16_t mode_waterfall(void) {                   // Waterfall. By: Andrew Tulin
    uint8_t pixCol = (log10f(FFT_MajorPeak) - 2.26f) * 150;           // 22Khz sampling - log10 frequency range is from 2.26 (182hz) to 3.967 (9260hz). Let's scale accordingly.
    if (FFT_MajorPeak < 182.0f) pixCol = 0;                           // handle underflow

+    unsigned k = SEGLEN-1;
    if (samplePeak) {
-      SEGMENT.setPixelColor(SEGLEN-1, CHSV(92,92,92));
+      pixels[k] = (uint32_t)CRGB(CHSV(92,92,92));
    } else {
-      SEGMENT.setPixelColor(SEGLEN-1, color_blend(SEGCOLOR(1), SEGMENT.color_from_palette(pixCol+SEGMENT.intensity, false, PALETTE_SOLID_WRAP, 0), (int)my_magnitude));
+      pixels[k] = color_blend(SEGCOLOR(1), SEGMENT.color_from_palette(pixCol+SEGMENT.intensity, false, PALETTE_SOLID_WRAP, 0), (uint8_t)my_magnitude);
    }
+    SEGMENT.setPixelColor(k, pixels[k]);
    // loop will not execute if SEGLEN equals 1
-    for (int i = 0; i < SEGLEN-1; i++) SEGMENT.setPixelColor(i, SEGMENT.getPixelColor(i+1)); // shift left
+    for (unsigned i = 0; i < k; i++) {
+      pixels[i] = pixels[i+1]; // shift left
+      SEGMENT.setPixelColor(i, pixels[i]);
+    }
  }

  return FRAMETIME;
--- a/wled00/FX.h
+++ b/wled00/FX.h
@ -1,3 +1,4 @@
+#pragma once
 /*
  WS2812FX.h - Library for WS2812 LED effects.
  Harm Aldick - 2016
@ -8,12 +9,15 @@
  Adapted from code originally licensed under the MIT license

  Modified for WLED
+
+  Segment class/struct (c) 2022 Blaz Kristan (@blazoncek)
 */

 #ifndef WS2812FX_h
 #define WS2812FX_h

 #include <vector>
+#include "wled.h"

 #include "const.h"

@ -46,6 +50,14 @@
 #define WLED_FPS         42
 #define FRAMETIME_FIXED  (1000/WLED_FPS)
 #define FRAMETIME        strip.getFrameTime()
+#if defined(ARDUINO_ARCH_ESP32) && !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S2)
+  #define MIN_FRAME_DELAY  2                                              // minimum wait between repaints, to keep other functions like WiFi alive 
+#elif defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32C3)
+  #define MIN_FRAME_DELAY  3                                              // S2/C3 are slower than normal esp32, and only have one core
+#else
+  #define MIN_FRAME_DELAY  8                                              // 8266 legacy MIN_SHOW_DELAY
+#endif
+#define FPS_UNLIMITED    0

 // FPS calculation (can be defined as compile flag for debugging)
 #ifndef FPS_CALC_AVG
@ -59,26 +71,21 @@
 /* each segment uses 82 bytes of SRAM memory, so if you're application fails because of
  insufficient memory, decreasing MAX_NUM_SEGMENTS may help */
 #ifdef ESP8266
-  #define MAX_NUM_SEGMENTS    16
+  #define MAX_NUM_SEGMENTS  16
  /* How much data bytes all segments combined may allocate */
  #define MAX_SEGMENT_DATA  5120
+#elif defined(CONFIG_IDF_TARGET_ESP32S2)
+  #define MAX_NUM_SEGMENTS  20
+  #define MAX_SEGMENT_DATA  (MAX_NUM_SEGMENTS*512)  // 10k by default (S2 is short on free RAM)
 #else
-  #ifndef MAX_NUM_SEGMENTS
-    #define MAX_NUM_SEGMENTS  32
-  #endif
-  #if defined(ARDUINO_ARCH_ESP32S2)
-    #define MAX_SEGMENT_DATA  MAX_NUM_SEGMENTS*768 // 24k by default (S2 is short on free RAM)
-  #else
-    #define MAX_SEGMENT_DATA  MAX_NUM_SEGMENTS*1280 // 40k by default
-  #endif
+  #define MAX_NUM_SEGMENTS  32  // warning: going beyond 32 may consume too much RAM for stable operation
+  #define MAX_SEGMENT_DATA  (MAX_NUM_SEGMENTS*1280) // 40k by default
 #endif

 /* How much data bytes each segment should max allocate to leave enough space for other segments,
  assuming each segment uses the same amount of data. 256 for ESP8266, 640 for ESP32. */
 #define FAIR_DATA_PER_SEG (MAX_SEGMENT_DATA / strip.getMaxSegments())

-#define MIN_SHOW_DELAY   (_frametime < 16 ? 8 : 15)
-
 #define NUM_COLORS       3 /* number of colors per segment */
 #define SEGMENT          strip._segments[strip.getCurrSegmentId()]
 #define SEGENV           strip._segments[strip.getCurrSegmentId()]
@ -524,6 +531,9 @@ typedef struct Segment {
    inline uint16_t length()             const { return width() * height(); }               // segment length (count) in physical pixels
    inline uint16_t groupLength()        const { return grouping + spacing; }
    inline uint8_t  getLightCapabilities() const { return _capabilities; }
+    inline void     deactivate()               { setGeometry(0,0); }
+    inline Segment &clearName()                { if (name) free(name); name = nullptr; return *this; }
+    inline Segment &setName(const String &name) { return setName(name.c_str()); }

    inline static uint16_t getUsedSegmentData()    { return _usedSegmentData; }
    inline static void addUsedSegmentData(int len) { _usedSegmentData += len; }
@ -533,14 +543,15 @@ typedef struct Segment {
    static void     handleRandomPalette();
    inline static const CRGBPalette16 &getCurrentPalette() { return Segment::_currentPalette; }

-    void    setUp(uint16_t i1, uint16_t i2, uint8_t grp=1, uint8_t spc=0, uint16_t ofs=UINT16_MAX, uint16_t i1Y=0, uint16_t i2Y=1);
+    void    setGeometry(uint16_t i1, uint16_t i2, uint8_t grp=1, uint8_t spc=0, uint16_t ofs=UINT16_MAX, uint16_t i1Y=0, uint16_t i2Y=1);
    Segment &setColor(uint8_t slot, uint32_t c);
    Segment &setCCT(uint16_t k);
    Segment &setOpacity(uint8_t o);
    Segment &setOption(uint8_t n, bool val);
    Segment &setMode(uint8_t fx, bool loadDefaults = false);
    Segment &setPalette(uint8_t pal);
-    uint8_t differs(Segment& b) const;
+    Segment &setName(const char* name);
+    uint8_t differs(const Segment& b) const;
    void    refreshLightCapabilities();

    // runtime data functions
@ -748,6 +759,7 @@ class WS2812FX {  // 96 bytes
      customMappingTable(nullptr),
      customMappingSize(0),
      _lastShow(0),
+      _lastServiceShow(0),
      _segment_index(0),
      _mainSegment(0)
    {
@ -846,7 +858,7 @@ class WS2812FX {  // 96 bytes
      getMappedPixelIndex(uint16_t index) const;

    inline uint16_t getFrameTime() const    { return _frametime; }        // returns amount of time a frame should take (in ms)
-    inline uint16_t getMinShowDelay() const { return MIN_SHOW_DELAY; }    // returns minimum amount of time strip.service() can be delayed (constant)
+    inline uint16_t getMinShowDelay() const { return MIN_FRAME_DELAY; }   // returns minimum amount of time strip.service() can be delayed (constant)
    inline uint16_t getLength() const       { return _length; }           // returns actual amount of LEDs on a strip (2D matrix may have less LEDs than W*H)
    inline uint16_t getTransition() const   { return _transitionDur; }    // returns currently set transition time (in ms)

@ -958,6 +970,7 @@ class WS2812FX {  // 96 bytes
    uint16_t  customMappingSize;

    unsigned long _lastShow;
+    unsigned long _lastServiceShow;

    uint8_t _segment_index;
    uint8_t _mainSegment;
--- a/wled00/FX_fcn.cpp
+++ b/wled00/FX_fcn.cpp
@ -456,7 +456,7 @@ void Segment::handleRandomPalette() {
 }

 // segId is given when called from network callback, changes are queued if that segment is currently in its effect function
-void Segment::setUp(uint16_t i1, uint16_t i2, uint8_t grp, uint8_t spc, uint16_t ofs, uint16_t i1Y, uint16_t i2Y) {
+void Segment::setGeometry(uint16_t i1, uint16_t i2, uint8_t grp, uint8_t spc, uint16_t ofs, uint16_t i1Y, uint16_t i2Y) {
  // return if neither bounds nor grouping have changed
  bool boundsUnchanged = (start == i1 && stop == i2);
  #ifndef WLED_DISABLE_2D
@ -601,6 +601,20 @@ Segment &Segment::setPalette(uint8_t pal) {
  return *this;
 }

+Segment &Segment::setName(const char *newName) {
+  if (newName) {
+    const int newLen = min(strlen(newName), (size_t)WLED_MAX_SEGNAME_LEN);
+    if (newLen) {
+      if (name) name = static_cast<char*>(realloc(name, newLen+1));
+      else      name = static_cast<char*>(malloc(newLen+1));
+      if (name) strlcpy(name, newName, newLen+1);
+      name[newLen] = 0;
+      return *this;
+    }
+  }
+  return clearName();
+}
+
 // 2D matrix
 unsigned IRAM_ATTR Segment::virtualWidth() const {
  unsigned groupLen = groupLength();
@ -951,7 +965,7 @@ uint32_t IRAM_ATTR_YN Segment::getPixelColor(int i) const
  return strip.getPixelColor(i);
 }

-uint8_t Segment::differs(Segment& b) const {
+uint8_t Segment::differs(const Segment& b) const {
  uint8_t d = 0;
  if (start != b.start)         d |= SEG_DIFFERS_BOUNDS;
  if (stop != b.stop)           d |= SEG_DIFFERS_BOUNDS;
@ -1192,6 +1206,34 @@ void WS2812FX::finalizeInit() {

  _hasWhiteChannel = _isOffRefreshRequired = false;

+  unsigned digitalCount = 0;
+  #if defined(ARDUINO_ARCH_ESP32) && !defined(CONFIG_IDF_TARGET_ESP32C3)
+  // determine if it is sensible to use parallel I2S outputs on ESP32 (i.e. more than 5 outputs = 1 I2S + 4 RMT)
+  unsigned maxLedsOnBus = 0;
+  for (const auto &bus : busConfigs) {
+    if (Bus::isDigital(bus.type) && !Bus::is2Pin(bus.type)) {
+      digitalCount++;
+      if (bus.count > maxLedsOnBus) maxLedsOnBus = bus.count;
+    }
+  }
+  DEBUG_PRINTF_P(PSTR("Maximum LEDs on a bus: %u\nDigital buses: %u\n"), maxLedsOnBus, digitalCount);
+  // we may remove 300 LEDs per bus limit when NeoPixelBus is updated beyond 2.9.0
+  if (maxLedsOnBus <= 300 && useParallelI2S) BusManager::useParallelOutput(); // must call before creating buses
+  else useParallelI2S = false; // enforce single I2S
+  #endif
+
+  // create buses/outputs
+  unsigned mem = 0;
+  digitalCount = 0;
+  for (const auto &bus : busConfigs) {
+    mem += bus.memUsage(Bus::isDigital(bus.type) && !Bus::is2Pin(bus.type) ? digitalCount++ : 0); // includes global buffer
+    if (mem <= MAX_LED_MEMORY) {
+      if (BusManager::add(bus) == -1) break;
+    } else DEBUG_PRINTF_P(PSTR("Out of LED memory! Bus %d (%d) #%u not created."), (int)bus.type, (int)bus.count, digitalCount);
+  }
+  busConfigs.clear();
+  busConfigs.shrink_to_fit();
+
  //if busses failed to load, add default (fresh install, FS issue, ...)
  if (BusManager::getNumBusses() == 0) {
    DEBUG_PRINTLN(F("No busses, init default"));
@ -1207,6 +1249,7 @@ void WS2812FX::finalizeInit() {
    
    unsigned prevLen = 0;
    unsigned pinsIndex = 0;
+    digitalCount = 0;
    for (unsigned i = 0; i < WLED_MAX_BUSSES+WLED_MIN_VIRTUAL_BUSSES; i++) {
      uint8_t defPin[OUTPUT_MAX_PINS];
      // if we have less types than requested outputs and they do not align, use last known type to set current type
@ -1271,9 +1314,11 @@ void WS2812FX::finalizeInit() {
      if (Bus::isPWM(dataType) || Bus::isOnOff(dataType)) count = 1;
      prevLen += count;
      BusConfig defCfg = BusConfig(dataType, defPin, start, count, DEFAULT_LED_COLOR_ORDER, false, 0, RGBW_MODE_MANUAL_ONLY, 0, useGlobalLedBuffer);
+      mem += defCfg.memUsage(Bus::isDigital(dataType) && !Bus::is2Pin(dataType) ? digitalCount++ : 0);
      if (BusManager::add(defCfg) == -1) break;
    }
  }
+  DEBUG_PRINTF_P(PSTR("LED buffer size: %uB/%uB\n"), mem, BusManager::memUsage());

  _length = 0;
  for (int i=0; i<BusManager::getNumBusses(); i++) {
@ -1290,6 +1335,7 @@ void WS2812FX::finalizeInit() {
    // This must be done after all buses have been created, as some kinds (parallel I2S) interact
    bus->begin();
  }
+  DEBUG_PRINTF_P(PSTR("Heap after buses: %d\n"), ESP.getFreeHeap());

  Segment::maxWidth  = _length;
  Segment::maxHeight = 1;
@ -1304,7 +1350,14 @@ void WS2812FX::finalizeInit() {
 void WS2812FX::service() {
  unsigned long nowUp = millis(); // Be aware, millis() rolls over every 49 days
  now = nowUp + timebase;
-  if (nowUp - _lastShow < MIN_SHOW_DELAY || _suspend) return;
+  if (_suspend) return;
+  unsigned long elapsed = nowUp - _lastServiceShow;
+
+  if (elapsed <= MIN_FRAME_DELAY) return;                                        // keep wifi alive - no matter if triggered or unlimited
+  if ( !_triggered && (_targetFps != FPS_UNLIMITED)) {                           // unlimited mode = no frametime
+    if (elapsed < _frametime) return;                                            // too early for service
+  }
+
  bool doShow = false;

  _isServicing = true;
@ -1321,7 +1374,7 @@ void WS2812FX::service() {
    if (!seg.isActive()) continue;

    // last condition ensures all solid segments are updated at the same time
-    if (nowUp > seg.next_time || _triggered || (doShow && seg.mode == FX_MODE_STATIC))
+    if (nowUp >= seg.next_time || _triggered || (doShow && seg.mode == FX_MODE_STATIC))
    {
      doShow = true;
      unsigned frameDelay = FRAMETIME;
@ -1371,15 +1424,16 @@ void WS2812FX::service() {
  _triggered = false;

  #ifdef WLED_DEBUG
-  if (millis() - nowUp > _frametime) DEBUG_PRINTF_P(PSTR("Slow effects %u/%d.\n"), (unsigned)(millis()-nowUp), (int)_frametime);
+  if ((_targetFps != FPS_UNLIMITED) && (millis() - nowUp > _frametime)) DEBUG_PRINTF_P(PSTR("Slow effects %u/%d.\n"), (unsigned)(millis()-nowUp), (int)_frametime);
  #endif
  if (doShow) {
    yield();
    Segment::handleRandomPalette(); // slowly transition random palette; move it into for loop when each segment has individual random palette
    show();
+    _lastServiceShow = nowUp; // update timestamp, for precise FPS control
  }
  #ifdef WLED_DEBUG
-  if (millis() - nowUp > _frametime) DEBUG_PRINTF_P(PSTR("Slow strip %u/%d.\n"), (unsigned)(millis()-nowUp), (int)_frametime);
+  if ((_targetFps != FPS_UNLIMITED) && (millis() - nowUp > _frametime)) DEBUG_PRINTF_P(PSTR("Slow strip %u/%d.\n"), (unsigned)(millis()-nowUp), (int)_frametime);
  #endif
 }

@ -1399,13 +1453,13 @@ void WS2812FX::show() {
  // avoid race condition, capture _callback value
  show_callback callback = _callback;
  if (callback) callback();
+  unsigned long showNow = millis();

  // some buses send asynchronously and this method will return before
  // all of the data has been sent.
  // See https://github.com/Makuna/NeoPixelBus/wiki/ESP32-NeoMethods#neoesp32rmt-methods
  BusManager::show();

-  unsigned long showNow = millis();
  size_t diff = showNow - _lastShow;

  if (diff > 0) { // skip calculation if no time has passed
@ -1433,8 +1487,9 @@ uint16_t WS2812FX::getFps() const {
 }

 void WS2812FX::setTargetFps(uint8_t fps) {
-  if (fps > 0 && fps <= 120) _targetFps = fps;
-  _frametime = 1000 / _targetFps;
+  if (fps <= 250) _targetFps = fps;
+  if (_targetFps > 0) _frametime = 1000 / _targetFps;
+  else _frametime = MIN_FRAME_DELAY;     // unlimited mode
 }

 void WS2812FX::setMode(uint8_t segid, uint8_t m) {
@ -1482,7 +1537,7 @@ void WS2812FX::setBrightness(uint8_t b, bool direct) {
  BusManager::setBrightness(b);
  if (!direct) {
    unsigned long t = millis();
-    if (_segments[0].next_time > t + 22 && t - _lastShow > MIN_SHOW_DELAY) trigger(); //apply brightness change immediately if no refresh soon
+    if (_segments[0].next_time > t + 22 && t - _lastShow > MIN_FRAME_DELAY) trigger(); //apply brightness change immediately if no refresh soon
  }
 }

@ -1592,7 +1647,7 @@ void WS2812FX::setSegment(uint8_t segId, uint16_t i1, uint16_t i2, uint8_t group
    segId = getSegmentsNum()-1; // segments are added at the end of list
  }
  suspend();
-  _segments[segId].setUp(i1, i2, grouping, spacing, offset, startY, stopY);
+  _segments[segId].setGeometry(i1, i2, grouping, spacing, offset, startY, stopY);
  resume();
  if (segId > 0 && segId == getSegmentsNum()-1 && i2 <= i1) _segments.pop_back(); // if last segment was deleted remove it from vector
 }
--- a/wled00/bus_manager.cpp
+++ b/wled00/bus_manager.cpp
@ -18,10 +18,12 @@
 #endif
 #include "const.h"
 #include "pin_manager.h"
-#include "bus_wrapper.h"
 #include "bus_manager.h"
+#include "bus_wrapper.h"
+#include <bits/unique_ptr.h>

 extern bool cctICused;
+extern bool useParallelI2S;

 //colors.cpp
 uint32_t colorBalanceFromKelvin(uint16_t kelvin, uint32_t rgb);
@ -29,28 +31,6 @@ uint32_t colorBalanceFromKelvin(uint16_t kelvin, uint32_t rgb);
 //udp.cpp
 uint8_t realtimeBroadcast(uint8_t type, IPAddress client, uint16_t length, byte *buffer, uint8_t bri=255, bool isRGBW=false);

-// enable additional debug output
-#if defined(WLED_DEBUG_HOST)
-  #include "net_debug.h"
-  #define DEBUGOUT NetDebug
-#else
-  #define DEBUGOUT Serial
-#endif
-
-#ifdef WLED_DEBUG
-  #ifndef ESP8266
-  #include <rom/rtc.h>
-  #endif
-  #define DEBUG_PRINT(x) DEBUGOUT.print(x)
-  #define DEBUG_PRINTLN(x) DEBUGOUT.println(x)
-  #define DEBUG_PRINTF(x...) DEBUGOUT.printf(x)
-  #define DEBUG_PRINTF_P(x...) DEBUGOUT.printf_P(x)
-#else
-  #define DEBUG_PRINT(x)
-  #define DEBUG_PRINTLN(x)
-  #define DEBUG_PRINTF(x...)
-  #define DEBUG_PRINTF_P(x...)
-#endif

 //color mangling macros
 #define RGBW32(r,g,b,w) (uint32_t((byte(w) << 24) | (byte(r) << 16) | (byte(g) << 8) | (byte(b))))
@ -63,6 +43,7 @@ uint8_t realtimeBroadcast(uint8_t type, IPAddress client, uint16_t length, byte
 bool ColorOrderMap::add(uint16_t start, uint16_t len, uint8_t colorOrder) {
  if (count() >= WLED_MAX_COLOR_ORDER_MAPPINGS || len == 0 || (colorOrder & 0x0F) > COL_ORDER_MAX) return false; // upper nibble contains W swap information
  _mappings.push_back({start,len,colorOrder});
+  DEBUGBUS_PRINTF_P(PSTR("Bus: Add COM (%d,%d,%d)\n"), (int)start, (int)len, (int)colorOrder);
  return true;
 }

@ -116,12 +97,16 @@ uint32_t Bus::autoWhiteCalc(uint32_t c) const {
 }

 uint8_t *Bus::allocateData(size_t size) {
-  if (_data) free(_data); // should not happen, but for safety
+  freeData(); // should not happen, but for safety
  return _data = (uint8_t *)(size>0 ? calloc(size, sizeof(uint8_t)) : nullptr);
 }

+void Bus::freeData() {
+  if (_data) free(_data);
+  _data = nullptr;
+}

-BusDigital::BusDigital(BusConfig &bc, uint8_t nr, const ColorOrderMap &com)
+BusDigital::BusDigital(const BusConfig &bc, uint8_t nr, const ColorOrderMap &com)
 : Bus(bc.type, bc.start, bc.autoWhite, bc.count, bc.reversed, (bc.refreshReq || bc.type == TYPE_TM1814))
 , _skip(bc.skipAmount) //sacrificial pixels
 , _colorOrder(bc.colorOrder)
@ -129,42 +114,43 @@ BusDigital::BusDigital(BusConfig &bc, uint8_t nr, const ColorOrderMap &com)
 , _milliAmpsMax(bc.milliAmpsMax)
 , _colorOrderMap(com)
 {
-  if (!isDigital(bc.type) || !bc.count) return;
-  if (!PinManager::allocatePin(bc.pins[0], true, PinOwner::BusDigital)) return;
+  DEBUGBUS_PRINTLN(F("Bus: Creating digital bus."));
+  if (!isDigital(bc.type) || !bc.count) { DEBUGBUS_PRINTLN(F("Not digial or empty bus!")); return; }
+  if (!PinManager::allocatePin(bc.pins[0], true, PinOwner::BusDigital)) { DEBUGBUS_PRINTLN(F("Pin 0 allocated!")); return; }
  _frequencykHz = 0U;
  _pins[0] = bc.pins[0];
  if (is2Pin(bc.type)) {
    if (!PinManager::allocatePin(bc.pins[1], true, PinOwner::BusDigital)) {
      cleanup();
+      DEBUGBUS_PRINTLN(F("Pin 1 allocated!"));
      return;
    }
    _pins[1] = bc.pins[1];
    _frequencykHz = bc.frequency ? bc.frequency : 2000U; // 2MHz clock if undefined
  }
  _iType = PolyBus::getI(bc.type, _pins, nr);
-  if (_iType == I_NONE) return;
+  if (_iType == I_NONE) { DEBUGBUS_PRINTLN(F("Incorrect iType!")); return; }
  _hasRgb = hasRGB(bc.type);
  _hasWhite = hasWhite(bc.type);
  _hasCCT = hasCCT(bc.type);
-  if (bc.doubleBuffer && !allocateData(bc.count * Bus::getNumberOfChannels(bc.type))) return;
+  if (bc.doubleBuffer && !allocateData(bc.count * Bus::getNumberOfChannels(bc.type))) { DEBUGBUS_PRINTLN(F("Buffer allocation failed!")); return; }
  //_buffering = bc.doubleBuffer;
  uint16_t lenToCreate = bc.count;
  if (bc.type == TYPE_WS2812_1CH_X3) lenToCreate = NUM_ICS_WS2812_1CH_3X(bc.count); // only needs a third of "RGB" LEDs for NeoPixelBus
  _busPtr = PolyBus::create(_iType, _pins, lenToCreate + _skip, nr);
  _valid = (_busPtr != nullptr);
-  DEBUG_PRINTF_P(PSTR("%successfully inited strip %u (len %u) with type %u and pins %u,%u (itype %u). mA=%d/%d\n"), _valid?"S":"Uns", nr, bc.count, bc.type, _pins[0], is2Pin(bc.type)?_pins[1]:255, _iType, _milliAmpsPerLed, _milliAmpsMax);
+  DEBUGBUS_PRINTF_P(PSTR("Bus: %successfully inited #%u (len:%u, type:%u (RGB:%d, W:%d, CCT:%d), pins:%u,%u [itype:%u] mA=%d/%d)\n"),
+    _valid?"S":"Uns",
+    (int)nr,
+    (int)bc.count,
+    (int)bc.type,
+    (int)_hasRgb, (int)_hasWhite, (int)_hasCCT,
+    (unsigned)_pins[0], is2Pin(bc.type)?(unsigned)_pins[1]:255U,
+    (unsigned)_iType,
+    (int)_milliAmpsPerLed, (int)_milliAmpsMax
+  );
 }

-//fine tune power estimation constants for your setup
-//you can set it to 0 if the ESP is powered by USB and the LEDs by external
-#ifndef MA_FOR_ESP
-  #ifdef ESP8266
-    #define MA_FOR_ESP         80 //how much mA does the ESP use (Wemos D1 about 80mA)
-  #else
-    #define MA_FOR_ESP        120 //how much mA does the ESP use (ESP32 about 120mA)
-  #endif
-#endif
-
 //DISCLAIMER
 //The following function attemps to calculate the current LED power usage,
 //and will limit the brightness to stay below a set amperage threshold.
@ -173,7 +159,7 @@ BusDigital::BusDigital(BusConfig &bc, uint8_t nr, const ColorOrderMap &com)
 //I am NOT to be held liable for burned down garages or houses!

 // To disable brightness limiter we either set output max current to 0 or single LED current to 0
-uint8_t BusDigital::estimateCurrentAndLimitBri() {
+uint8_t BusDigital::estimateCurrentAndLimitBri() const {
  bool useWackyWS2815PowerModel = false;
  byte actualMilliampsPerLed = _milliAmpsPerLed;

@ -186,7 +172,7 @@ uint8_t BusDigital::estimateCurrentAndLimitBri() {
    actualMilliampsPerLed = 12; // from testing an actual strip
  }

-  size_t powerBudget = (_milliAmpsMax - MA_FOR_ESP/BusManager::getNumBusses()); //80/120mA for ESP power
+  unsigned powerBudget = (_milliAmpsMax - MA_FOR_ESP/BusManager::getNumBusses()); //80/120mA for ESP power
  if (powerBudget > getLength()) { //each LED uses about 1mA in standby, exclude that from power budget
    powerBudget -= getLength();
  } else {
@ -211,26 +197,25 @@ uint8_t BusDigital::estimateCurrentAndLimitBri() {
  }

  // powerSum has all the values of channels summed (max would be getLength()*765 as white is excluded) so convert to milliAmps
-  busPowerSum = (busPowerSum * actualMilliampsPerLed) / 765;
-  _milliAmpsTotal = busPowerSum * _bri / 255;
+  BusDigital::_milliAmpsTotal = (busPowerSum * actualMilliampsPerLed * _bri) / (765*255);

  uint8_t newBri = _bri;
-  if (busPowerSum * _bri / 255 > powerBudget) { //scale brightness down to stay in current limit
-    float scale = (float)(powerBudget * 255) / (float)(busPowerSum * _bri);
-    if (scale >= 1.0f) return _bri;
-    _milliAmpsTotal = ceilf((float)_milliAmpsTotal * scale);
-    uint8_t scaleB = min((int)(scale * 255), 255);
-    newBri = unsigned(_bri * scaleB) / 256 + 1;
+  if (BusDigital::_milliAmpsTotal > powerBudget) {
+    //scale brightness down to stay in current limit
+    unsigned scaleB = powerBudget * 255 / BusDigital::_milliAmpsTotal;
+    newBri = (_bri * scaleB) / 256 + 1;
+    BusDigital::_milliAmpsTotal = powerBudget;
+    //_milliAmpsTotal = (busPowerSum * actualMilliampsPerLed * newBri) / (765*255);
  }
  return newBri;
 }

 void BusDigital::show() {
-  _milliAmpsTotal = 0;
+  BusDigital::_milliAmpsTotal = 0;
  if (!_valid) return;

  uint8_t cctWW = 0, cctCW = 0;
-  unsigned newBri = estimateCurrentAndLimitBri();  // will fill _milliAmpsTotal
+  unsigned newBri = estimateCurrentAndLimitBri();  // will fill _milliAmpsTotal (TODO: could use PolyBus::CalcTotalMilliAmpere())
  if (newBri < _bri) PolyBus::setBrightness(_busPtr, _iType, newBri); // limit brightness to stay within current limits

  if (_data) {
@ -256,6 +241,7 @@ void BusDigital::show() {
        // TODO: there is an issue if CCT is calculated from RGB value (_cct==-1), we cannot do that with double buffer
        Bus::_cct = _data[offset+channels-1];
        Bus::calculateCCT(c, cctWW, cctCW);
+        if (_type == TYPE_WS2812_WWA) c = RGBW32(cctWW, cctCW, 0, W(c)); // may need swapping
      }
      unsigned pix = i;
      if (_reversed) pix = _len - pix -1;
@ -306,9 +292,8 @@ void BusDigital::setStatusPixel(uint32_t c) {
  }
 }

-void IRAM_ATTR BusDigital::setPixelColor(uint16_t pix, uint32_t c) {
+void IRAM_ATTR BusDigital::setPixelColor(unsigned pix, uint32_t c) {
  if (!_valid) return;
-  uint8_t cctWW = 0, cctCW = 0;
  if (hasWhite()) c = autoWhiteCalc(c);
  if (Bus::_cct >= 1900) c = colorBalanceFromKelvin(Bus::_cct, c); //color correction from CCT
  if (_data) {
@ -336,13 +321,19 @@ void IRAM_ATTR BusDigital::setPixelColor(uint16_t pix, uint32_t c) {
        case 2: c = RGBW32(R(cOld), G(cOld), W(c)   , 0); break;
      }
    }
-    if (hasCCT()) Bus::calculateCCT(c, cctWW, cctCW);
-    PolyBus::setPixelColor(_busPtr, _iType, pix, c, co, (cctCW<<8) | cctWW);
+    uint16_t wwcw = 0;
+    if (hasCCT()) {
+      uint8_t cctWW = 0, cctCW = 0;
+      Bus::calculateCCT(c, cctWW, cctCW);
+      wwcw = (cctCW<<8) | cctWW;
+      if (_type == TYPE_WS2812_WWA) c = RGBW32(cctWW, cctCW, 0, W(c)); // may need swapping
+    }
+    PolyBus::setPixelColor(_busPtr, _iType, pix, c, co, wwcw);
  }
 }

 // returns original color if global buffering is enabled, else returns lossly restored color from bus
-uint32_t IRAM_ATTR BusDigital::getPixelColor(uint16_t pix) const {
+uint32_t IRAM_ATTR BusDigital::getPixelColor(unsigned pix) const {
  if (!_valid) return 0;
  if (_data) {
    size_t offset = pix * getNumberOfChannels();
@ -368,16 +359,24 @@ uint32_t IRAM_ATTR BusDigital::getPixelColor(uint16_t pix) const {
        case 2: c = RGBW32(b, b, b, b); break;
      }
    }
+    if (_type == TYPE_WS2812_WWA) {
+      uint8_t w = R(c) | G(c);
+      c = RGBW32(w, w, 0, w);
+    }
    return c;
  }
 }

-uint8_t BusDigital::getPins(uint8_t* pinArray) const {
+unsigned BusDigital::getPins(uint8_t* pinArray) const {
  unsigned numPins = is2Pin(_type) + 1;
  if (pinArray) for (unsigned i = 0; i < numPins; i++) pinArray[i] = _pins[i];
  return numPins;
 }

+unsigned BusDigital::getBusSize() const {
+  return sizeof(BusDigital) + (isOk() ? PolyBus::getDataSize(_busPtr, _iType) + (_data ? _len * getNumberOfChannels() : 0) : 0);
+}
+
 void BusDigital::setColorOrder(uint8_t colorOrder) {
  // upper nibble contains W swap information
  if ((colorOrder & 0x0F) > 5) return;
@ -400,8 +399,8 @@ std::vector<LEDType> BusDigital::getLEDTypes() {
    {TYPE_WS2805,        "D",  PSTR("WS2805 RGBCW")},
    {TYPE_SM16825,       "D",  PSTR("SM16825 RGBCW")},
    {TYPE_WS2812_1CH_X3, "D",  PSTR("WS2811 White")},
-    //{TYPE_WS2812_2CH_X3, "D",  PSTR("WS2811 CCT")}, // not implemented
-    //{TYPE_WS2812_WWA,    "D",  PSTR("WS2811 WWA")}, // not implemented
+    //{TYPE_WS2812_2CH_X3, "D",  PSTR("WS281x CCT")}, // not implemented
+    {TYPE_WS2812_WWA,    "D",  PSTR("WS281x WWA")}, // amber ignored
    {TYPE_WS2801,        "2P", PSTR("WS2801")},
    {TYPE_APA102,        "2P", PSTR("APA102")},
    {TYPE_LPD8806,       "2P", PSTR("LPD8806")},
@ -416,12 +415,13 @@ void BusDigital::begin() {
 }

 void BusDigital::cleanup() {
-  DEBUG_PRINTLN(F("Digital Cleanup."));
+  DEBUGBUS_PRINTLN(F("Digital Cleanup."));
  PolyBus::cleanup(_busPtr, _iType);
  _iType = I_NONE;
  _valid = false;
  _busPtr = nullptr;
-  if (_data != nullptr) freeData();
+  freeData();
+  //PinManager::deallocateMultiplePins(_pins, 2, PinOwner::BusDigital);
  PinManager::deallocatePin(_pins[1], PinOwner::BusDigital);
  PinManager::deallocatePin(_pins[0], PinOwner::BusDigital);
 }
@ -452,7 +452,7 @@ void BusDigital::cleanup() {
  #endif
 #endif

-BusPwm::BusPwm(BusConfig &bc)
+BusPwm::BusPwm(const BusConfig &bc)
 : Bus(bc.type, bc.start, bc.autoWhite, 1, bc.reversed, bc.refreshReq) // hijack Off refresh flag to indicate usage of dithering
 {
  if (!isPWM(bc.type)) return;
@ -496,12 +496,12 @@ BusPwm::BusPwm(BusConfig &bc)
  _hasRgb = hasRGB(bc.type);
  _hasWhite = hasWhite(bc.type);
  _hasCCT = hasCCT(bc.type);
-  _data = _pwmdata; // avoid malloc() and use stack
+  _data = _pwmdata; // avoid malloc() and use already allocated memory
  _valid = true;
-  DEBUG_PRINTF_P(PSTR("%successfully inited PWM strip with type %u, frequency %u, bit depth %u and pins %u,%u,%u,%u,%u\n"), _valid?"S":"Uns", bc.type, _frequency, _depth, _pins[0], _pins[1], _pins[2], _pins[3], _pins[4]);
+  DEBUGBUS_PRINTF_P(PSTR("%successfully inited PWM strip with type %u, frequency %u, bit depth %u and pins %u,%u,%u,%u,%u\n"), _valid?"S":"Uns", bc.type, _frequency, _depth, _pins[0], _pins[1], _pins[2], _pins[3], _pins[4]);
 }

-void BusPwm::setPixelColor(uint16_t pix, uint32_t c) {
+void BusPwm::setPixelColor(unsigned pix, uint32_t c) {
  if (pix != 0 || !_valid) return; //only react to first pixel
  if (_type != TYPE_ANALOG_3CH) c = autoWhiteCalc(c);
  if (Bus::_cct >= 1900 && (_type == TYPE_ANALOG_3CH || _type == TYPE_ANALOG_4CH)) {
@ -538,7 +538,7 @@ void BusPwm::setPixelColor(uint16_t pix, uint32_t c) {
 }

 //does no index check
-uint32_t BusPwm::getPixelColor(uint16_t pix) const {
+uint32_t BusPwm::getPixelColor(unsigned pix) const {
  if (!_valid) return 0;
  // TODO getting the reverse from CCT is involved (a quick approximation when CCT blending is ste to 0 implemented)
  switch (_type) {
@ -567,19 +567,15 @@ void BusPwm::show() {
  const unsigned maxBri = (1<<_depth);      // possible values: 16384 (14), 8192 (13), 4096 (12), 2048 (11), 1024 (10), 512 (9) and 256 (8) 
  [[maybe_unused]] const unsigned bitShift = dithering * 4;  // if dithering, _depth is 12 bit but LEDC channel is set to 8 bit (using 4 fractional bits)

-  // use CIE brightness formula (cubic) to fit (or approximate linearity of) human eye perceived brightness
-  // the formula is based on 12 bit resolution as there is no need for greater precision
+  // use CIE brightness formula (linear + cubic) to approximate human eye perceived brightness
  // see: https://en.wikipedia.org/wiki/Lightness
-  unsigned pwmBri = (unsigned)_bri * 100;  // enlarge to use integer math for linear response
-  if (pwmBri < 2040) {
-    // linear response for values [0-20]
-    pwmBri = ((pwmBri << 12) + 115043) / 230087; //adding '0.5' before division for correct rounding
-  } else {
-    // cubic response for values [21-255]
-    pwmBri += 4080;
-    float temp = (float)pwmBri / 29580.0f;
-    temp = temp * temp * temp * (float)maxBri; 
-    pwmBri = (unsigned)temp;  // pwmBri is in range [0-maxBri] 
+  unsigned pwmBri = _bri;
+  if (pwmBri < 21) {                                   // linear response for values [0-20]
+    pwmBri = (pwmBri * maxBri + 2300 / 2) / 2300 ;     // adding '0.5' before division for correct rounding, 2300 gives a good match to CIE curve
+  } else {                                             // cubic response for values [21-255]
+    float temp = float(pwmBri + 41) / float(255 + 41); // 41 is to match offset & slope to linear part
+    temp = temp * temp * temp * (float)maxBri;
+    pwmBri = (unsigned)temp;                           // pwmBri is in range [0-maxBri] C
  }

  [[maybe_unused]] unsigned hPoint = 0;  // phase shift (0 - maxBri)
@ -618,7 +614,7 @@ void BusPwm::show() {
  }
 }

-uint8_t BusPwm::getPins(uint8_t* pinArray) const {
+unsigned BusPwm::getPins(uint8_t* pinArray) const {
  if (!_valid) return 0;
  unsigned numPins = numPWMPins(_type);
  if (pinArray) for (unsigned i = 0; i < numPins; i++) pinArray[i] = _pins[i];
@ -654,7 +650,7 @@ void BusPwm::deallocatePins() {
 }


-BusOnOff::BusOnOff(BusConfig &bc)
+BusOnOff::BusOnOff(const BusConfig &bc)
 : Bus(bc.type, bc.start, bc.autoWhite, 1, bc.reversed)
 , _onoffdata(0)
 {
@ -671,10 +667,10 @@ BusOnOff::BusOnOff(BusConfig &bc)
  _hasCCT = false;
  _data = &_onoffdata; // avoid malloc() and use stack
  _valid = true;
-  DEBUG_PRINTF_P(PSTR("%successfully inited On/Off strip with pin %u\n"), _valid?"S":"Uns", _pin);
+  DEBUGBUS_PRINTF_P(PSTR("%successfully inited On/Off strip with pin %u\n"), _valid?"S":"Uns", _pin);
 }

-void BusOnOff::setPixelColor(uint16_t pix, uint32_t c) {
+void BusOnOff::setPixelColor(unsigned pix, uint32_t c) {
  if (pix != 0 || !_valid) return; //only react to first pixel
  c = autoWhiteCalc(c);
  uint8_t r = R(c);
@ -684,7 +680,7 @@ void BusOnOff::setPixelColor(uint16_t pix, uint32_t c) {
  _data[0] = bool(r|g|b|w) && bool(_bri) ? 0xFF : 0;
 }

-uint32_t BusOnOff::getPixelColor(uint16_t pix) const {
+uint32_t BusOnOff::getPixelColor(unsigned pix) const {
  if (!_valid) return 0;
  return RGBW32(_data[0], _data[0], _data[0], _data[0]);
 }
@ -694,7 +690,7 @@ void BusOnOff::show() {
  digitalWrite(_pin, _reversed ? !(bool)_data[0] : (bool)_data[0]);
 }

-uint8_t BusOnOff::getPins(uint8_t* pinArray) const {
+unsigned BusOnOff::getPins(uint8_t* pinArray) const {
  if (!_valid) return 0;
  if (pinArray) pinArray[0] = _pin;
  return 1;
@ -707,7 +703,7 @@ std::vector<LEDType> BusOnOff::getLEDTypes() {
  };
 }

-BusNetwork::BusNetwork(BusConfig &bc)
+BusNetwork::BusNetwork(const BusConfig &bc)
 : Bus(bc.type, bc.start, bc.autoWhite, bc.count)
 , _broadcastLock(false)
 {
@ -731,10 +727,10 @@ BusNetwork::BusNetwork(BusConfig &bc)
  _UDPchannels = _hasWhite + 3;
  _client = IPAddress(bc.pins[0],bc.pins[1],bc.pins[2],bc.pins[3]);
  _valid = (allocateData(_len * _UDPchannels) != nullptr);
-  DEBUG_PRINTF_P(PSTR("%successfully inited virtual strip with type %u and IP %u.%u.%u.%u\n"), _valid?"S":"Uns", bc.type, bc.pins[0], bc.pins[1], bc.pins[2], bc.pins[3]);
+  DEBUGBUS_PRINTF_P(PSTR("%successfully inited virtual strip with type %u and IP %u.%u.%u.%u\n"), _valid?"S":"Uns", bc.type, bc.pins[0], bc.pins[1], bc.pins[2], bc.pins[3]);
 }

-void BusNetwork::setPixelColor(uint16_t pix, uint32_t c) {
+void BusNetwork::setPixelColor(unsigned pix, uint32_t c) {
  if (!_valid || pix >= _len) return;
  if (_hasWhite) c = autoWhiteCalc(c);
  if (Bus::_cct >= 1900) c = colorBalanceFromKelvin(Bus::_cct, c); //color correction from CCT
@ -745,7 +741,7 @@ void BusNetwork::setPixelColor(uint16_t pix, uint32_t c) {
  if (_hasWhite) _data[offset+3] = W(c);
 }

-uint32_t BusNetwork::getPixelColor(uint16_t pix) const {
+uint32_t BusNetwork::getPixelColor(unsigned pix) const {
  if (!_valid || pix >= _len) return 0;
  unsigned offset = pix * _UDPchannels;
  return RGBW32(_data[offset], _data[offset+1], _data[offset+2], (hasWhite() ? _data[offset+3] : 0));
@ -758,7 +754,7 @@ void BusNetwork::show() {
  _broadcastLock = false;
 }

-uint8_t BusNetwork::getPins(uint8_t* pinArray) const {
+unsigned BusNetwork::getPins(uint8_t* pinArray) const {
  if (pinArray) for (unsigned i = 0; i < 4; i++) pinArray[i] = _client[i];
  return 4;
 }
@ -779,6 +775,7 @@ std::vector<LEDType> BusNetwork::getLEDTypes() {
 }

 void BusNetwork::cleanup() {
+  DEBUGBUS_PRINTLN(F("Virtual Cleanup."));
  _type = I_NONE;
  _valid = false;
  freeData();
@ -786,43 +783,66 @@ void BusNetwork::cleanup() {


 //utility to get the approx. memory usage of a given BusConfig
-uint32_t BusManager::memUsage(BusConfig &bc) {
-  if (Bus::isOnOff(bc.type) || Bus::isPWM(bc.type)) return OUTPUT_MAX_PINS;
-
-  unsigned len = bc.count + bc.skipAmount;
-  unsigned channels = Bus::getNumberOfChannels(bc.type);
-  unsigned multiplier = 1;
-  if (Bus::isDigital(bc.type)) { // digital types
-    if (Bus::is16bit(bc.type)) len *= 2; // 16-bit LEDs
-    #ifdef ESP8266
-      if (bc.pins[0] == 3) { //8266 DMA uses 5x the mem
-        multiplier = 5;
-      }
-    #else //ESP32 RMT uses double buffer, parallel I2S uses 8x buffer (3 times)
-      multiplier = PolyBus::isParallelI2S1Output() ? 24 : 2;
-    #endif
-  }
-  return (len * multiplier + bc.doubleBuffer * (bc.count + bc.skipAmount)) * channels;
-}
-
-uint32_t BusManager::memUsage(unsigned maxChannels, unsigned maxCount, unsigned minBuses) {
-  //ESP32 RMT uses double buffer, parallel I2S uses 8x buffer (3 times)
-  unsigned multiplier = PolyBus::isParallelI2S1Output() ? 3 : 2;
-  return (maxChannels * maxCount * minBuses * multiplier);
-}
-
-int BusManager::add(BusConfig &bc) {
-  if (getNumBusses() - getNumVirtualBusses() >= WLED_MAX_BUSSES) return -1;
-  if (Bus::isVirtual(bc.type)) {
-    busses[numBusses] = new BusNetwork(bc);
-  } else if (Bus::isDigital(bc.type)) {
-    busses[numBusses] = new BusDigital(bc, numBusses, colorOrderMap);
-  } else if (Bus::isOnOff(bc.type)) {
-    busses[numBusses] = new BusOnOff(bc);
+unsigned BusConfig::memUsage(unsigned nr) const {
+  if (Bus::isVirtual(type)) {
+    return sizeof(BusNetwork) + (count * Bus::getNumberOfChannels(type));
+  } else if (Bus::isDigital(type)) {
+    return sizeof(BusDigital) + PolyBus::memUsage(count + skipAmount, PolyBus::getI(type, pins, nr)) + doubleBuffer * (count + skipAmount) * Bus::getNumberOfChannels(type);
+  } else if (Bus::isOnOff(type)) {
+    return sizeof(BusOnOff);
  } else {
-    busses[numBusses] = new BusPwm(bc);
+    return sizeof(BusPwm);
  }
-  return numBusses++;
+}
+
+
+unsigned BusManager::memUsage() {
+  // when ESP32, S2 & S3 use parallel I2S only the largest bus determines the total memory requirements for back buffers
+  // front buffers are always allocated per bus
+  unsigned size = 0;
+  unsigned maxI2S = 0;
+  #if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(ESP8266)
+  unsigned digitalCount = 0;
+    #if defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32S3)
+      #define MAX_RMT 4
+    #else
+      #define MAX_RMT 8
+    #endif
+  #endif
+  for (const auto &bus : busses) {
+    unsigned busSize = bus->getBusSize();
+    #if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(ESP8266)
+    if (bus->isDigital() && !bus->is2Pin()) digitalCount++;
+    if (PolyBus::isParallelI2S1Output() && digitalCount > MAX_RMT) {
+      unsigned i2sCommonSize = 3 * bus->getLength() * bus->getNumberOfChannels() * (bus->is16bit()+1);
+      if (i2sCommonSize > maxI2S) maxI2S = i2sCommonSize;
+      busSize -= i2sCommonSize;
+    }
+    #endif
+    size += busSize;
+  }
+  return size + maxI2S;
+}
+
+int BusManager::add(const BusConfig &bc) {
+  DEBUGBUS_PRINTF_P(PSTR("Bus: Adding bus (%d - %d >= %d)\n"), getNumBusses(), getNumVirtualBusses(), WLED_MAX_BUSSES);
+  if (getNumBusses() - getNumVirtualBusses() >= WLED_MAX_BUSSES) return -1;
+  unsigned numDigital = 0;
+  for (const auto &bus : busses) if (bus->isDigital() && !bus->is2Pin()) numDigital++;
+  if (Bus::isVirtual(bc.type)) {
+    //busses.push_back(std::make_unique<BusNetwork>(bc)); // when C++ >11
+    busses.push_back(new BusNetwork(bc));
+  } else if (Bus::isDigital(bc.type)) {
+    //busses.push_back(std::make_unique<BusDigital>(bc, numDigital, colorOrderMap));
+    busses.push_back(new BusDigital(bc, numDigital, colorOrderMap));
+  } else if (Bus::isOnOff(bc.type)) {
+    //busses.push_back(std::make_unique<BusOnOff>(bc));
+    busses.push_back(new BusOnOff(bc));
+  } else {
+    //busses.push_back(std::make_unique<BusPwm>(bc));
+    busses.push_back(new BusPwm(bc));
+  }
+  return busses.size();
 }

 // credit @willmmiles
@ -851,18 +871,21 @@ String BusManager::getLEDTypesJSONString() {
 }

 void BusManager::useParallelOutput() {
-  _parallelOutputs = 8; // hardcoded since we use NPB I2S x8 methods
+  DEBUGBUS_PRINTLN(F("Bus: Enabling parallel I2S."));
  PolyBus::setParallelI2S1Output();
 }

+bool BusManager::hasParallelOutput() {
+  return PolyBus::isParallelI2S1Output();
+}
+
 //do not call this method from system context (network callback)
 void BusManager::removeAll() {
-  DEBUG_PRINTLN(F("Removing all."));
+  DEBUGBUS_PRINTLN(F("Removing all."));
  //prevents crashes due to deleting busses while in use.
  while (!canAllShow()) yield();
-  for (unsigned i = 0; i < numBusses; i++) delete busses[i];
-  numBusses = 0;
-  _parallelOutputs = 1;
+  for (auto &bus : busses) delete bus; // needed when not using std::unique_ptr C++ >11
+  busses.clear();
  PolyBus::setParallelI2S1Output(false);
 }

@ -873,7 +896,9 @@ void BusManager::removeAll() {
 void BusManager::esp32RMTInvertIdle() {
  bool idle_out;
  unsigned rmt = 0;
-  for (unsigned u = 0; u < numBusses(); u++) {
+  unsigned u = 0;
+  for (auto &bus : busses) {
+    if (bus->getLength()==0 || !bus->isDigital() || bus->is2Pin()) continue;
    #if defined(CONFIG_IDF_TARGET_ESP32C3)    // 2 RMT, only has 1 I2S but NPB does not support it ATM
      if (u > 1) return;
      rmt = u;
@ -884,11 +909,11 @@ void BusManager::esp32RMTInvertIdle() {
      if (u > 3) return;
      rmt = u;
    #else
-      if (u < _parallelOutputs) continue;
-      if (u >= _parallelOutputs + 8) return; // only 8 RMT channels
-      rmt = u - _parallelOutputs;
+      unsigned numI2S = !PolyBus::isParallelI2S1Output(); // if using parallel I2S, RMT is used 1st
+      if (numI2S > u) continue;
+      if (u > 7 + numI2S) return;
+      rmt = u - numI2S;
    #endif
-    if (busses[u]->getLength()==0 || !busses[u]->isDigital() || busses[u]->is2Pin()) continue;
    //assumes that bus number to rmt channel mapping stays 1:1
    rmt_channel_t ch = static_cast<rmt_channel_t>(rmt);
    rmt_idle_level_t lvl;
@ -897,6 +922,7 @@ void BusManager::esp32RMTInvertIdle() {
    else if (lvl == RMT_IDLE_LEVEL_LOW) lvl = RMT_IDLE_LEVEL_HIGH;
    else continue;
    rmt_set_idle_level(ch, idle_out, lvl);
+    u++
  }
 }
 #endif
@ -905,12 +931,12 @@ void BusManager::on() {
  #ifdef ESP8266
  //Fix for turning off onboard LED breaking bus
  if (PinManager::getPinOwner(LED_BUILTIN) == PinOwner::BusDigital) {
-    for (unsigned i = 0; i < numBusses; i++) {
+    for (auto &bus : busses) {
      uint8_t pins[2] = {255,255};
-      if (busses[i]->isDigital() && busses[i]->getPins(pins)) {
+      if (bus->isDigital() && bus->getPins(pins)) {
        if (pins[0] == LED_BUILTIN || pins[1] == LED_BUILTIN) {
-          BusDigital *bus = static_cast<BusDigital*>(busses[i]);
-          bus->begin();
+          BusDigital *b = static_cast<BusDigital*>(bus);
+          b->begin();
          break;
        }
      }
@ -927,7 +953,7 @@ void BusManager::off() {
  // turn off built-in LED if strip is turned off
  // this will break digital bus so will need to be re-initialised on On
  if (PinManager::getPinOwner(LED_BUILTIN) == PinOwner::BusDigital) {
-    for (unsigned i = 0; i < numBusses; i++) if (busses[i]->isOffRefreshRequired()) return;
+    for (const auto &bus : busses) if (bus->isOffRefreshRequired()) return;
    pinMode(LED_BUILTIN, OUTPUT);
    digitalWrite(LED_BUILTIN, HIGH);
  }
@ -939,31 +965,26 @@ void BusManager::off() {

 void BusManager::show() {
  _milliAmpsUsed = 0;
-  for (unsigned i = 0; i < numBusses; i++) {
-    busses[i]->show();
-    _milliAmpsUsed += busses[i]->getUsedCurrent();
+  for (auto &bus : busses) {
+    bus->show();
+    _milliAmpsUsed += bus->getUsedCurrent();
  }
-  if (_milliAmpsUsed) _milliAmpsUsed += MA_FOR_ESP;
 }

 void BusManager::setStatusPixel(uint32_t c) {
-  for (unsigned i = 0; i < numBusses; i++) {
-    busses[i]->setStatusPixel(c);
-  }
+  for (auto &bus : busses) bus->setStatusPixel(c);
 }

-void IRAM_ATTR BusManager::setPixelColor(uint16_t pix, uint32_t c) {
-  for (unsigned i = 0; i < numBusses; i++) {
-    unsigned bstart = busses[i]->getStart();
-    if (pix < bstart || pix >= bstart + busses[i]->getLength()) continue;
-    busses[i]->setPixelColor(pix - bstart, c);
+void IRAM_ATTR BusManager::setPixelColor(unsigned pix, uint32_t c) {
+  for (auto &bus : busses) {
+    unsigned bstart = bus->getStart();
+    if (pix < bstart || pix >= bstart + bus->getLength()) continue;
+    bus->setPixelColor(pix - bstart, c);
  }
 }

 void BusManager::setBrightness(uint8_t b) {
-  for (unsigned i = 0; i < numBusses; i++) {
-    busses[i]->setBrightness(b);
-  }
+  for (auto &bus : busses) bus->setBrightness(b);
 }

 void BusManager::setSegmentCCT(int16_t cct, bool allowWBCorrection) {
@ -975,35 +996,33 @@ void BusManager::setSegmentCCT(int16_t cct, bool allowWBCorrection) {
  Bus::setCCT(cct);
 }

-uint32_t BusManager::getPixelColor(uint16_t pix) {
-  for (unsigned i = 0; i < numBusses; i++) {
-    unsigned bstart = busses[i]->getStart();
-    if (!busses[i]->containsPixel(pix)) continue;
-    return busses[i]->getPixelColor(pix - bstart);
+uint32_t BusManager::getPixelColor(unsigned pix) {
+  for (auto &bus : busses) {
+    unsigned bstart = bus->getStart();
+    if (!bus->containsPixel(pix)) continue;
+    return bus->getPixelColor(pix - bstart);
  }
  return 0;
 }

 bool BusManager::canAllShow() {
-  for (unsigned i = 0; i < numBusses; i++) {
-    if (!busses[i]->canShow()) return false;
-  }
+  for (const auto &bus : busses) if (!bus->canShow()) return false;
  return true;
 }

 Bus* BusManager::getBus(uint8_t busNr) {
-  if (busNr >= numBusses) return nullptr;
+  if (busNr >= busses.size()) return nullptr;
  return busses[busNr];
 }

 //semi-duplicate of strip.getLengthTotal() (though that just returns strip._length, calculated in finalizeInit())
 uint16_t BusManager::getTotalLength() {
  unsigned len = 0;
-  for (unsigned i=0; i<numBusses; i++) len += busses[i]->getLength();
+  for (const auto &bus : busses) len += bus->getLength();
  return len;
 }

-bool PolyBus::useParallelI2S = false;
+bool PolyBus::_useParallelI2S = false;

 // Bus static member definition
 int16_t Bus::_cct = -1;
@ -1012,9 +1031,8 @@ uint8_t Bus::_gAWM = 255;

 uint16_t BusDigital::_milliAmpsTotal = 0;

-uint8_t       BusManager::numBusses = 0;
-Bus*          BusManager::busses[WLED_MAX_BUSSES+WLED_MIN_VIRTUAL_BUSSES];
+//std::vector<std::unique_ptr<Bus>> BusManager::busses;
+std::vector<Bus*> BusManager::busses;
 ColorOrderMap BusManager::colorOrderMap = {};
 uint16_t      BusManager::_milliAmpsUsed = 0;
 uint16_t      BusManager::_milliAmpsMax = ABL_MILLIAMPS_DEFAULT;
-uint8_t       BusManager::_parallelOutputs = 1;
--- a/wled00/bus_manager.h
+++ b/wled00/bus_manager.h
@ -1,3 +1,4 @@
+#pragma once
 #ifndef BusManager_h
 #define BusManager_h

@ -7,6 +8,30 @@

 #include "const.h"
 #include <vector>
+#include <memory>
+
+// enable additional debug output
+#if defined(WLED_DEBUG_HOST)
+  #include "net_debug.h"
+  #define DEBUGOUT NetDebug
+#else
+  #define DEBUGOUT Serial
+#endif
+
+#ifdef WLED_DEBUG_BUS
+  #ifndef ESP8266
+  #include <rom/rtc.h>
+  #endif
+  #define DEBUGBUS_PRINT(x) DEBUGOUT.print(x)
+  #define DEBUGBUS_PRINTLN(x) DEBUGOUT.println(x)
+  #define DEBUGBUS_PRINTF(x...) DEBUGOUT.printf(x)
+  #define DEBUGBUS_PRINTF_P(x...) DEBUGOUT.printf_P(x)
+#else
+  #define DEBUGBUS_PRINT(x)
+  #define DEBUGBUS_PRINTLN(x)
+  #define DEBUGBUS_PRINTF(x...)
+  #define DEBUGBUS_PRINTF_P(x...)
+#endif

 //colors.cpp
 uint16_t approximateKelvinFromRGB(uint32_t rgb);
@ -77,50 +102,51 @@ class Bus {
      _autoWhiteMode = Bus::hasWhite(type) ? aw : RGBW_MODE_MANUAL_ONLY;
    };

-    virtual ~Bus() {} //throw the bus under the bus
+    virtual ~Bus() {} //throw the bus under the bus (derived class needs to freeData())

-    virtual void     begin() {};
+    virtual void     begin()                                    {};
    virtual void     show() = 0;
-    virtual bool     canShow() const                          { return true; }
-    virtual void     setStatusPixel(uint32_t c)                {}
-    virtual void     setPixelColor(uint16_t pix, uint32_t c) = 0;
-    virtual void     setBrightness(uint8_t b)                  { _bri = b; };
-    virtual void     setColorOrder(uint8_t co)                 {}
-    virtual uint32_t getPixelColor(uint16_t pix) const         { return 0; }
-    virtual uint8_t  getPins(uint8_t* pinArray = nullptr) const { return 0; }
-    virtual uint16_t getLength() const                         { return isOk() ? _len : 0; }
-    virtual uint8_t  getColorOrder() const                     { return COL_ORDER_RGB; }
-    virtual uint8_t  skippedLeds() const                       { return 0; }
-    virtual uint16_t getFrequency() const                      { return 0U; }
-    virtual uint16_t getLEDCurrent() const                     { return 0; }
-    virtual uint16_t getUsedCurrent() const                    { return 0; }
-    virtual uint16_t getMaxCurrent() const                     { return 0; }
+    virtual bool     canShow() const                            { return true; }
+    virtual void     setStatusPixel(uint32_t c)                 {}
+    virtual void     setPixelColor(unsigned pix, uint32_t c) = 0;
+    virtual void     setBrightness(uint8_t b)                   { _bri = b; };
+    virtual void     setColorOrder(uint8_t co)                  {}
+    virtual uint32_t getPixelColor(unsigned pix) const          { return 0; }
+    virtual unsigned getPins(uint8_t* pinArray = nullptr) const { return 0; }
+    virtual uint16_t getLength() const                          { return isOk() ? _len : 0; }
+    virtual uint8_t  getColorOrder() const                      { return COL_ORDER_RGB; }
+    virtual unsigned skippedLeds() const                        { return 0; }
+    virtual uint16_t getFrequency() const                       { return 0U; }
+    virtual uint16_t getLEDCurrent() const                      { return 0; }
+    virtual uint16_t getUsedCurrent() const                     { return 0; }
+    virtual uint16_t getMaxCurrent() const                      { return 0; }
+    virtual unsigned getBusSize() const                         { return sizeof(Bus); }

-    inline  bool     hasRGB() const                            { return _hasRgb; }
-    inline  bool     hasWhite() const                          { return _hasWhite; }
-    inline  bool     hasCCT() const                            { return _hasCCT; }
-    inline  bool     isDigital() const                         { return isDigital(_type); }
-    inline  bool     is2Pin() const                            { return is2Pin(_type); }
-    inline  bool     isOnOff() const                           { return isOnOff(_type); }
-    inline  bool     isPWM() const                             { return isPWM(_type); }
-    inline  bool     isVirtual() const                         { return isVirtual(_type); }
-    inline  bool     is16bit() const                           { return is16bit(_type); }
-    inline  bool     mustRefresh() const                       { return mustRefresh(_type); }
-    inline  void     setReversed(bool reversed)                { _reversed = reversed; }
-    inline  void     setStart(uint16_t start)                  { _start = start; }
-    inline  void     setAutoWhiteMode(uint8_t m)               { if (m < 5) _autoWhiteMode = m; }
-    inline  uint8_t  getAutoWhiteMode() const                  { return _autoWhiteMode; }
-    inline  uint8_t  getNumberOfChannels() const               { return hasWhite() + 3*hasRGB() + hasCCT(); }
-    inline  uint16_t getStart() const                          { return _start; }
-    inline  uint8_t  getType() const                           { return _type; }
-    inline  bool     isOk() const                              { return _valid; }
-    inline  bool     isReversed() const                        { return _reversed; }
-    inline  bool     isOffRefreshRequired() const              { return _needsRefresh; }
-    inline  bool     containsPixel(uint16_t pix) const         { return pix >= _start && pix < _start + _len; }
+    inline  bool     hasRGB() const                             { return _hasRgb; }
+    inline  bool     hasWhite() const                           { return _hasWhite; }
+    inline  bool     hasCCT() const                             { return _hasCCT; }
+    inline  bool     isDigital() const                          { return isDigital(_type); }
+    inline  bool     is2Pin() const                             { return is2Pin(_type); }
+    inline  bool     isOnOff() const                            { return isOnOff(_type); }
+    inline  bool     isPWM() const                              { return isPWM(_type); }
+    inline  bool     isVirtual() const                          { return isVirtual(_type); }
+    inline  bool     is16bit() const                            { return is16bit(_type); }
+    inline  bool     mustRefresh() const                        { return mustRefresh(_type); }
+    inline  void     setReversed(bool reversed)                 { _reversed = reversed; }
+    inline  void     setStart(uint16_t start)                   { _start = start; }
+    inline  void     setAutoWhiteMode(uint8_t m)                { if (m < 5) _autoWhiteMode = m; }
+    inline  uint8_t  getAutoWhiteMode() const                   { return _autoWhiteMode; }
+    inline  unsigned getNumberOfChannels() const                { return hasWhite() + 3*hasRGB() + hasCCT(); }
+    inline  uint16_t getStart() const                           { return _start; }
+    inline  uint8_t  getType() const                            { return _type; }
+    inline  bool     isOk() const                               { return _valid; }
+    inline  bool     isReversed() const                         { return _reversed; }
+    inline  bool     isOffRefreshRequired() const               { return _needsRefresh; }
+    inline  bool     containsPixel(uint16_t pix) const          { return pix >= _start && pix < _start + _len; }

-    static inline std::vector<LEDType> getLEDTypes()           { return {{TYPE_NONE, "", PSTR("None")}}; } // not used. just for reference for derived classes
-    static constexpr uint8_t getNumberOfPins(uint8_t type)     { return isVirtual(type) ? 4 : isPWM(type) ? numPWMPins(type) : is2Pin(type) + 1; } // credit @PaoloTK
-    static constexpr uint8_t getNumberOfChannels(uint8_t type) { return hasWhite(type) + 3*hasRGB(type) + hasCCT(type); }
+    static inline std::vector<LEDType> getLEDTypes()            { return {{TYPE_NONE, "", PSTR("None")}}; } // not used. just for reference for derived classes
+    static constexpr unsigned getNumberOfPins(uint8_t type)     { return isVirtual(type) ? 4 : isPWM(type) ? numPWMPins(type) : is2Pin(type) + 1; } // credit @PaoloTK
+    static constexpr unsigned getNumberOfChannels(uint8_t type) { return hasWhite(type) + 3*hasRGB(type) + hasCCT(type); }
    static constexpr bool hasRGB(uint8_t type) {
      return !((type >= TYPE_WS2812_1CH && type <= TYPE_WS2812_WWA) || type == TYPE_ANALOG_1CH || type == TYPE_ANALOG_2CH || type == TYPE_ONOFF);
    }
@ -152,7 +178,7 @@ class Bus {
    static inline uint8_t  getGlobalAWMode()          { return _gAWM; }
    static inline void     setCCT(int16_t cct)        { _cct = cct; }
    static inline uint8_t  getCCTBlend()              { return _cctBlend; }
-    static inline void setCCTBlend(uint8_t b) {
+    static inline void     setCCTBlend(uint8_t b) {
      _cctBlend = (std::min((int)b,100) * 127) / 100;
      //compile-time limiter for hardware that can't power both white channels at max
      #ifdef WLED_MAX_CCT_BLEND
@ -191,29 +217,30 @@ class Bus {

    uint32_t autoWhiteCalc(uint32_t c) const;
    uint8_t *allocateData(size_t size = 1);
-    void     freeData() { if (_data != nullptr) free(_data); _data = nullptr; }
+    void     freeData();
 };


 class BusDigital : public Bus {
  public:
-    BusDigital(BusConfig &bc, uint8_t nr, const ColorOrderMap &com);
+    BusDigital(const BusConfig &bc, uint8_t nr, const ColorOrderMap &com);
    ~BusDigital() { cleanup(); }

    void show() override;
    bool canShow() const override;
    void setBrightness(uint8_t b) override;
    void setStatusPixel(uint32_t c) override;
-    [[gnu::hot]] void setPixelColor(uint16_t pix, uint32_t c) override;
+    [[gnu::hot]] void setPixelColor(unsigned pix, uint32_t c) override;
    void setColorOrder(uint8_t colorOrder) override;
-    [[gnu::hot]] uint32_t getPixelColor(uint16_t pix) const override;
+    [[gnu::hot]] uint32_t getPixelColor(unsigned pix) const override;
    uint8_t  getColorOrder() const override  { return _colorOrder; }
-    uint8_t  getPins(uint8_t* pinArray = nullptr) const override;
-    uint8_t  skippedLeds() const override    { return _skip; }
+    unsigned getPins(uint8_t* pinArray = nullptr) const override;
+    unsigned skippedLeds() const override    { return _skip; }
    uint16_t getFrequency() const override   { return _frequencykHz; }
    uint16_t getLEDCurrent() const override  { return _milliAmpsPerLed; }
    uint16_t getUsedCurrent() const override { return _milliAmpsTotal; }
    uint16_t getMaxCurrent() const override  { return _milliAmpsMax; }
+    unsigned getBusSize() const override;
    void begin() override;
    void cleanup();

@ -243,21 +270,22 @@ class BusDigital : public Bus {
      return c;
    }

-    uint8_t  estimateCurrentAndLimitBri();
+    uint8_t  estimateCurrentAndLimitBri() const;
 };


 class BusPwm : public Bus {
  public:
-    BusPwm(BusConfig &bc);
+    BusPwm(const BusConfig &bc);
    ~BusPwm() { cleanup(); }

-    void setPixelColor(uint16_t pix, uint32_t c) override;
-    uint32_t getPixelColor(uint16_t pix) const override; //does no index check
-    uint8_t  getPins(uint8_t* pinArray = nullptr) const override;
+    void setPixelColor(unsigned pix, uint32_t c) override;
+    uint32_t getPixelColor(unsigned pix) const override; //does no index check
+    unsigned getPins(uint8_t* pinArray = nullptr) const override;
    uint16_t getFrequency() const override { return _frequency; }
+    unsigned getBusSize() const override   { return sizeof(BusPwm); }
    void show() override;
-    void cleanup() { deallocatePins(); }
+    inline void cleanup() { deallocatePins(); _data = nullptr; }

    static std::vector<LEDType> getLEDTypes();

@ -276,14 +304,15 @@ class BusPwm : public Bus {

 class BusOnOff : public Bus {
  public:
-    BusOnOff(BusConfig &bc);
+    BusOnOff(const BusConfig &bc);
    ~BusOnOff() { cleanup(); }

-    void setPixelColor(uint16_t pix, uint32_t c) override;
-    uint32_t getPixelColor(uint16_t pix) const override;
-    uint8_t  getPins(uint8_t* pinArray) const override;
+    void setPixelColor(unsigned pix, uint32_t c) override;
+    uint32_t getPixelColor(unsigned pix) const override;
+    unsigned getPins(uint8_t* pinArray) const override;
+    unsigned getBusSize() const override { return sizeof(BusOnOff); }
    void show() override;
-    void cleanup() { PinManager::deallocatePin(_pin, PinOwner::BusOnOff); }
+    inline void cleanup() { PinManager::deallocatePin(_pin, PinOwner::BusOnOff); _data = nullptr; }

    static std::vector<LEDType> getLEDTypes();

@ -295,13 +324,14 @@ class BusOnOff : public Bus {

 class BusNetwork : public Bus {
  public:
-    BusNetwork(BusConfig &bc);
+    BusNetwork(const BusConfig &bc);
    ~BusNetwork() { cleanup(); }

    bool canShow() const override  { return !_broadcastLock; } // this should be a return value from UDP routine if it is still sending data out
-    void setPixelColor(uint16_t pix, uint32_t c) override;
-    uint32_t getPixelColor(uint16_t pix) const override;
-    uint8_t  getPins(uint8_t* pinArray = nullptr) const override;
+    [[gnu::hot]] void setPixelColor(unsigned pix, uint32_t c) override;
+    [[gnu::hot]] uint32_t getPixelColor(unsigned pix) const override;
+    unsigned getPins(uint8_t* pinArray = nullptr) const override;
+    unsigned getBusSize() const override  { return sizeof(BusNetwork) + (isOk() ? _len * _UDPchannels : 0); }
    void show() override;
    void cleanup();

@ -347,6 +377,16 @@ struct BusConfig {
    type = busType & 0x7F;  // bit 7 may be/is hacked to include refresh info (1=refresh in off state, 0=no refresh)
    size_t nPins = Bus::getNumberOfPins(type);
    for (size_t i = 0; i < nPins; i++) pins[i] = ppins[i];
+    DEBUGBUS_PRINTF_P(PSTR("Bus: Config (%d-%d, type:%d, CO:%d, rev:%d, skip:%d, AW:%d kHz:%d, mA:%d/%d)\n"),
+      (int)start, (int)(start+len),
+      (int)type,
+      (int)colorOrder,
+      (int)reversed,
+      (int)skipAmount,
+      (int)autoWhite,
+      (int)frequency,
+      (int)milliAmpsPerLed, (int)milliAmpsMax
+    );
  }

  //validates start and length and extends total if needed
@ -360,21 +400,32 @@ struct BusConfig {
    if (start + count > total) total = start + count;
    return true;
  }
+
+  unsigned memUsage(unsigned nr = 0) const;
 };


+//fine tune power estimation constants for your setup
+//you can set it to 0 if the ESP is powered by USB and the LEDs by external
+#ifndef MA_FOR_ESP
+  #ifdef ESP8266
+    #define MA_FOR_ESP         80 //how much mA does the ESP use (Wemos D1 about 80mA)
+  #else
+    #define MA_FOR_ESP        120 //how much mA does the ESP use (ESP32 about 120mA)
+  #endif
+#endif
+
 class BusManager {
  public:
    BusManager() {};

-    //utility to get the approx. memory usage of a given BusConfig
-    static uint32_t memUsage(BusConfig &bc);
-    static uint32_t memUsage(unsigned channels, unsigned count, unsigned buses = 1);
-    static uint16_t currentMilliamps() { return _milliAmpsUsed; }
+    static unsigned memUsage();
+    static uint16_t currentMilliamps() { return _milliAmpsUsed + MA_FOR_ESP; }
    static uint16_t ablMilliampsMax()  { return _milliAmpsMax; }

-    static int add(BusConfig &bc);
+    static int add(const BusConfig &bc);
    static void useParallelOutput(); // workaround for inaccessible PolyBus
+    static bool hasParallelOutput(); // workaround for inaccessible PolyBus

    //do not call this method from system context (network callback)
    static void removeAll();
@ -385,38 +436,37 @@ class BusManager {
    static void show();
    static bool canAllShow();
    static void setStatusPixel(uint32_t c);
-    [[gnu::hot]] static void setPixelColor(uint16_t pix, uint32_t c);
+    [[gnu::hot]] static void setPixelColor(unsigned pix, uint32_t c);
    static void setBrightness(uint8_t b);
    // for setSegmentCCT(), cct can only be in [-1,255] range; allowWBCorrection will convert it to K
    // WARNING: setSegmentCCT() is a misleading name!!! much better would be setGlobalCCT() or just setCCT()
    static void setSegmentCCT(int16_t cct, bool allowWBCorrection = false);
    static inline void setMilliampsMax(uint16_t max) { _milliAmpsMax = max;}
-    static uint32_t getPixelColor(uint16_t pix);
+    static uint32_t getPixelColor(unsigned pix);
    static inline int16_t getSegmentCCT() { return Bus::getCCT(); }

    static Bus* getBus(uint8_t busNr);

    //semi-duplicate of strip.getLengthTotal() (though that just returns strip._length, calculated in finalizeInit())
    static uint16_t getTotalLength();
-    static inline uint8_t getNumBusses() { return numBusses; }
+    static inline uint8_t getNumBusses() { return busses.size(); }
    static String getLEDTypesJSONString();

    static inline ColorOrderMap& getColorOrderMap() { return colorOrderMap; }

  private:
-    static uint8_t numBusses;
-    static Bus* busses[WLED_MAX_BUSSES+WLED_MIN_VIRTUAL_BUSSES];
+    //static std::vector<std::unique_ptr<Bus>> busses; // we'd need C++ >11
+    static std::vector<Bus*> busses;
    static ColorOrderMap colorOrderMap;
    static uint16_t _milliAmpsUsed;
    static uint16_t _milliAmpsMax;
-    static uint8_t _parallelOutputs;

    #ifdef ESP32_DATA_IDLE_HIGH
    static void    esp32RMTInvertIdle() ;
    #endif
    static uint8_t getNumVirtualBusses() {
      int j = 0;
-      for (int i=0; i<numBusses; i++) if (busses[i]->isVirtual()) j++;
+      for (const auto &bus : busses) j += bus->isVirtual();
      return j;
    }
 };
--- a/wled00/bus_wrapper.h
+++ b/wled00/bus_wrapper.h
@ -1,23 +1,9 @@
+#pragma once
 #ifndef BusWrapper_h
 #define BusWrapper_h

+//#define NPB_CONF_4STEP_CADENCE
 #include "NeoPixelBusLg.h"
-#include "bus_manager.h"
-
-// temporary - these defines should actually be set in platformio.ini
-// C3: I2S0 and I2S1 methods not supported (has one I2S bus)
-// S2: I2S1 methods not supported (has one I2S bus)
-// S3: I2S0 and I2S1 methods not supported yet (has two I2S buses)
-// https://github.com/Makuna/NeoPixelBus/blob/b32f719e95ef3c35c46da5c99538017ef925c026/src/internal/Esp32_i2s.h#L4
-// https://github.com/Makuna/NeoPixelBus/blob/b32f719e95ef3c35c46da5c99538017ef925c026/src/internal/NeoEsp32RmtMethod.h#L857
-
-#if !defined(WLED_NO_I2S0_PIXELBUS) && (defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3))
-#define WLED_NO_I2S0_PIXELBUS
-#endif
-#if !defined(WLED_NO_I2S1_PIXELBUS) && (defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32S2))
-#define WLED_NO_I2S1_PIXELBUS
-#endif
-// temporary end

 //Hardware SPI Pins
 #define P_8266_HS_MOSI 13
@ -55,110 +41,98 @@
 #define I_8266_DM_TM2_3 19
 #define I_8266_BB_TM2_3 20
 //UCS8903 (RGB)
-#define I_8266_U0_UCS_3 49
-#define I_8266_U1_UCS_3 50
-#define I_8266_DM_UCS_3 51
-#define I_8266_BB_UCS_3 52
+#define I_8266_U0_UCS_3 21
+#define I_8266_U1_UCS_3 22
+#define I_8266_DM_UCS_3 23
+#define I_8266_BB_UCS_3 24
 //UCS8904 (RGBW)
-#define I_8266_U0_UCS_4 53
-#define I_8266_U1_UCS_4 54
-#define I_8266_DM_UCS_4 55
-#define I_8266_BB_UCS_4 56
+#define I_8266_U0_UCS_4 25
+#define I_8266_U1_UCS_4 26
+#define I_8266_DM_UCS_4 27
+#define I_8266_BB_UCS_4 28
 //FW1906 GRBCW
-#define I_8266_U0_FW6_5 66
-#define I_8266_U1_FW6_5 67
-#define I_8266_DM_FW6_5 68
-#define I_8266_BB_FW6_5 69
+#define I_8266_U0_FW6_5 29
+#define I_8266_U1_FW6_5 30
+#define I_8266_DM_FW6_5 31
+#define I_8266_BB_FW6_5 32
 //ESP8266 APA106
-#define I_8266_U0_APA106_3 81
-#define I_8266_U1_APA106_3 82
-#define I_8266_DM_APA106_3 83
-#define I_8266_BB_APA106_3 84
+#define I_8266_U0_APA106_3 33
+#define I_8266_U1_APA106_3 34
+#define I_8266_DM_APA106_3 35
+#define I_8266_BB_APA106_3 36
 //WS2805 (RGBCW)
-#define I_8266_U0_2805_5 89
-#define I_8266_U1_2805_5 90
-#define I_8266_DM_2805_5 91
-#define I_8266_BB_2805_5 92
+#define I_8266_U0_2805_5 37
+#define I_8266_U1_2805_5 38
+#define I_8266_DM_2805_5 39
+#define I_8266_BB_2805_5 40
 //TM1914 (RGB)
-#define I_8266_U0_TM1914_3 99
-#define I_8266_U1_TM1914_3 100
-#define I_8266_DM_TM1914_3 101
-#define I_8266_BB_TM1914_3 102
+#define I_8266_U0_TM1914_3 41
+#define I_8266_U1_TM1914_3 42
+#define I_8266_DM_TM1914_3 43
+#define I_8266_BB_TM1914_3 44
 //SM16825 (RGBCW)
-#define I_8266_U0_SM16825_5 103
-#define I_8266_U1_SM16825_5 104
-#define I_8266_DM_SM16825_5 105
-#define I_8266_BB_SM16825_5 106
+#define I_8266_U0_SM16825_5 45
+#define I_8266_U1_SM16825_5 46
+#define I_8266_DM_SM16825_5 47
+#define I_8266_BB_SM16825_5 48

 /*** ESP32 Neopixel methods ***/
 //RGB
-#define I_32_RN_NEO_3 21
-#define I_32_I0_NEO_3 22
-#define I_32_I1_NEO_3 23
+#define I_32_RN_NEO_3 1
+#define I_32_I2_NEO_3 2
 //RGBW
-#define I_32_RN_NEO_4 25
-#define I_32_I0_NEO_4 26
-#define I_32_I1_NEO_4 27
+#define I_32_RN_NEO_4 5
+#define I_32_I2_NEO_4 6
 //400Kbps
-#define I_32_RN_400_3 29
-#define I_32_I0_400_3 30
-#define I_32_I1_400_3 31
+#define I_32_RN_400_3 9
+#define I_32_I2_400_3 10
 //TM1814 (RGBW)
-#define I_32_RN_TM1_4 33
-#define I_32_I0_TM1_4 34
-#define I_32_I1_TM1_4 35
+#define I_32_RN_TM1_4 13
+#define I_32_I2_TM1_4 14
 //TM1829 (RGB)
-#define I_32_RN_TM2_3 36
-#define I_32_I0_TM2_3 37
-#define I_32_I1_TM2_3 38
+#define I_32_RN_TM2_3 17
+#define I_32_I2_TM2_3 18
 //UCS8903 (RGB)
-#define I_32_RN_UCS_3 57
-#define I_32_I0_UCS_3 58
-#define I_32_I1_UCS_3 59
+#define I_32_RN_UCS_3 21
+#define I_32_I2_UCS_3 22
 //UCS8904 (RGBW)
-#define I_32_RN_UCS_4 60
-#define I_32_I0_UCS_4 61
-#define I_32_I1_UCS_4 62
+#define I_32_RN_UCS_4 25
+#define I_32_I2_UCS_4 26
 //FW1906 GRBCW
-#define I_32_RN_FW6_5 63
-#define I_32_I0_FW6_5 64
-#define I_32_I1_FW6_5 65
+#define I_32_RN_FW6_5 29
+#define I_32_I2_FW6_5 30
 //APA106
-#define I_32_RN_APA106_3 85
-#define I_32_I0_APA106_3 86
-#define I_32_I1_APA106_3 87
+#define I_32_RN_APA106_3 33
+#define I_32_I2_APA106_3 34
 //WS2805 (RGBCW)
-#define I_32_RN_2805_5 93
-#define I_32_I0_2805_5 94
-#define I_32_I1_2805_5 95
+#define I_32_RN_2805_5 37
+#define I_32_I2_2805_5 38
 //TM1914 (RGB)
-#define I_32_RN_TM1914_3 96
-#define I_32_I0_TM1914_3 97
-#define I_32_I1_TM1914_3 98
+#define I_32_RN_TM1914_3 41
+#define I_32_I2_TM1914_3 42
 //SM16825 (RGBCW)
-#define I_32_RN_SM16825_5 107
-#define I_32_I0_SM16825_5 108
-#define I_32_I1_SM16825_5 109
+#define I_32_RN_SM16825_5 45
+#define I_32_I2_SM16825_5 46

 //APA102
-#define I_HS_DOT_3 39 //hardware SPI
-#define I_SS_DOT_3 40 //soft SPI
+#define I_HS_DOT_3 101 //hardware SPI
+#define I_SS_DOT_3 102 //soft SPI

 //LPD8806
-#define I_HS_LPD_3 41
-#define I_SS_LPD_3 42
+#define I_HS_LPD_3 103
+#define I_SS_LPD_3 104

 //WS2801
-#define I_HS_WS1_3 43
-#define I_SS_WS1_3 44
+#define I_HS_WS1_3 105
+#define I_SS_WS1_3 106

 //P9813
-#define I_HS_P98_3 45
-#define I_SS_P98_3 46
+#define I_HS_P98_3 107
+#define I_SS_P98_3 108

 //LPD6803
-#define I_HS_LPO_3 47
-#define I_SS_LPO_3 48
+#define I_HS_LPO_3 109
+#define I_SS_LPO_3 110


 // In the following NeoGammaNullMethod can be replaced with NeoGammaWLEDMethod to perform Gamma correction implicitly
@ -230,66 +204,95 @@

 /*** ESP32 Neopixel methods ***/
 #ifdef ARDUINO_ARCH_ESP32
+// C3: I2S0 and I2S1 methods not supported (has one I2S bus)
+// S2: I2S0 methods supported (single & parallel), I2S1 methods not supported (has one I2S bus)
+// S3: I2S0 methods not supported, I2S1 supports LCD parallel methods (has two I2S buses)
+// https://github.com/Makuna/NeoPixelBus/blob/b32f719e95ef3c35c46da5c99538017ef925c026/src/internal/Esp32_i2s.h#L4
+// https://github.com/Makuna/NeoPixelBus/blob/b32f719e95ef3c35c46da5c99538017ef925c026/src/internal/NeoEsp32RmtMethod.h#L857
+#if defined(CONFIG_IDF_TARGET_ESP32S3)
+  // S3 will always use LCD parallel output
+  typedef X8Ws2812xMethod X1Ws2812xMethod;
+  typedef X8Sk6812Method X1Sk6812Method;
+  typedef X8400KbpsMethod X1400KbpsMethod;
+  typedef X8800KbpsMethod X1800KbpsMethod;
+  typedef X8Tm1814Method X1Tm1814Method;
+  typedef X8Tm1829Method X1Tm1829Method;
+  typedef X8Apa106Method X1Apa106Method;
+  typedef X8Ws2805Method X1Ws2805Method;
+  typedef X8Tm1914Method X1Tm1914Method;
+#elif defined(CONFIG_IDF_TARGET_ESP32S2)
+  // S2 will use I2S0
+  typedef NeoEsp32I2s0Ws2812xMethod X1Ws2812xMethod;
+  typedef NeoEsp32I2s0Sk6812Method X1Sk6812Method;
+  typedef NeoEsp32I2s0400KbpsMethod X1400KbpsMethod;
+  typedef NeoEsp32I2s0800KbpsMethod X1800KbpsMethod;
+  typedef NeoEsp32I2s0Tm1814Method X1Tm1814Method;
+  typedef NeoEsp32I2s0Tm1829Method X1Tm1829Method;
+  typedef NeoEsp32I2s0Apa106Method X1Apa106Method;
+  typedef NeoEsp32I2s0Ws2805Method X1Ws2805Method;
+  typedef NeoEsp32I2s0Tm1914Method X1Tm1914Method;
+#elif !defined(CONFIG_IDF_TARGET_ESP32C3)
+  // regular ESP32 will use I2S1
+  typedef NeoEsp32I2s1Ws2812xMethod X1Ws2812xMethod;
+  typedef NeoEsp32I2s1Sk6812Method X1Sk6812Method;
+  typedef NeoEsp32I2s1400KbpsMethod X1400KbpsMethod;
+  typedef NeoEsp32I2s1800KbpsMethod X1800KbpsMethod;
+  typedef NeoEsp32I2s1Tm1814Method X1Tm1814Method;
+  typedef NeoEsp32I2s1Tm1829Method X1Tm1829Method;
+  typedef NeoEsp32I2s1Apa106Method X1Apa106Method;
+  typedef NeoEsp32I2s1Ws2805Method X1Ws2805Method;
+  typedef NeoEsp32I2s1Tm1914Method X1Tm1914Method;
+#endif
+
 //RGB
-#define B_32_RN_NEO_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32RmtNWs2812xMethod, NeoGammaNullMethod>
-#define B_32_I0_NEO_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32I2s0Ws2812xMethod, NeoGammaNullMethod>
-#define B_32_I1_NEO_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32I2s1Ws2812xMethod, NeoGammaNullMethod>
-#define B_32_I1_NEO_3P NeoPixelBusLg<NeoGrbFeature, NeoEsp32I2s1X8Ws2812xMethod, NeoGammaNullMethod> // parallel I2S
+#define B_32_RN_NEO_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32RmtNWs2812xMethod, NeoGammaNullMethod> // ESP32, S2, S3, C3
+//#define B_32_IN_NEO_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32I2sNWs2812xMethod, NeoGammaNullMethod> // ESP32 (dynamic I2S selection)
+#define B_32_I2_NEO_3 NeoPixelBusLg<NeoGrbFeature, X1Ws2812xMethod, NeoGammaNullMethod> // ESP32, S2, S3 (automatic I2S selection, see typedef above)
+#define B_32_IP_NEO_3 NeoPixelBusLg<NeoGrbFeature, X8Ws2812xMethod, NeoGammaNullMethod> // parallel I2S (ESP32, S2, S3)
 //RGBW
 #define B_32_RN_NEO_4 NeoPixelBusLg<NeoGrbwFeature, NeoEsp32RmtNSk6812Method, NeoGammaNullMethod>
-#define B_32_I0_NEO_4 NeoPixelBusLg<NeoGrbwFeature, NeoEsp32I2s0Sk6812Method, NeoGammaNullMethod>
-#define B_32_I1_NEO_4 NeoPixelBusLg<NeoGrbwFeature, NeoEsp32I2s1Sk6812Method, NeoGammaNullMethod>
-#define B_32_I1_NEO_4P NeoPixelBusLg<NeoGrbwFeature, NeoEsp32I2s1X8Sk6812Method, NeoGammaNullMethod> // parallel I2S
+#define B_32_I2_NEO_4 NeoPixelBusLg<NeoGrbwFeature, X1Sk6812Method, NeoGammaNullMethod>
+#define B_32_IP_NEO_4 NeoPixelBusLg<NeoGrbwFeature, X8Sk6812Method, NeoGammaNullMethod> // parallel I2S
 //400Kbps
 #define B_32_RN_400_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32RmtN400KbpsMethod, NeoGammaNullMethod>
-#define B_32_I0_400_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32I2s0400KbpsMethod, NeoGammaNullMethod>
-#define B_32_I1_400_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32I2s1400KbpsMethod, NeoGammaNullMethod>
-#define B_32_I1_400_3P NeoPixelBusLg<NeoGrbFeature, NeoEsp32I2s1X8400KbpsMethod, NeoGammaNullMethod> // parallel I2S
+#define B_32_I2_400_3 NeoPixelBusLg<NeoGrbFeature, X1400KbpsMethod, NeoGammaNullMethod>
+#define B_32_IP_400_3 NeoPixelBusLg<NeoGrbFeature, X8400KbpsMethod, NeoGammaNullMethod> // parallel I2S
 //TM1814 (RGBW)
 #define B_32_RN_TM1_4 NeoPixelBusLg<NeoWrgbTm1814Feature, NeoEsp32RmtNTm1814Method, NeoGammaNullMethod>
-#define B_32_I0_TM1_4 NeoPixelBusLg<NeoWrgbTm1814Feature, NeoEsp32I2s0Tm1814Method, NeoGammaNullMethod>
-#define B_32_I1_TM1_4 NeoPixelBusLg<NeoWrgbTm1814Feature, NeoEsp32I2s1Tm1814Method, NeoGammaNullMethod>
-#define B_32_I1_TM1_4P NeoPixelBusLg<NeoWrgbTm1814Feature, NeoEsp32I2s1X8Tm1814Method, NeoGammaNullMethod> // parallel I2S
+#define B_32_I2_TM1_4 NeoPixelBusLg<NeoWrgbTm1814Feature, X1Tm1814Method, NeoGammaNullMethod>
+#define B_32_IP_TM1_4 NeoPixelBusLg<NeoWrgbTm1814Feature, X8Tm1814Method, NeoGammaNullMethod> // parallel I2S
 //TM1829 (RGB)
 #define B_32_RN_TM2_3 NeoPixelBusLg<NeoBrgFeature, NeoEsp32RmtNTm1829Method, NeoGammaNullMethod>
-#define B_32_I0_TM2_3 NeoPixelBusLg<NeoBrgFeature, NeoEsp32I2s0Tm1829Method, NeoGammaNullMethod>
-#define B_32_I1_TM2_3 NeoPixelBusLg<NeoBrgFeature, NeoEsp32I2s1Tm1829Method, NeoGammaNullMethod>
-#define B_32_I1_TM2_3P NeoPixelBusLg<NeoBrgFeature, NeoEsp32I2s1X8Tm1829Method, NeoGammaNullMethod> // parallel I2S
+#define B_32_I2_TM2_3 NeoPixelBusLg<NeoBrgFeature, X1Tm1829Method, NeoGammaNullMethod>
+#define B_32_IP_TM2_3 NeoPixelBusLg<NeoBrgFeature, X8Tm1829Method, NeoGammaNullMethod> // parallel I2S
 //UCS8903
 #define B_32_RN_UCS_3 NeoPixelBusLg<NeoRgbUcs8903Feature, NeoEsp32RmtNWs2812xMethod, NeoGammaNullMethod>
-#define B_32_I0_UCS_3 NeoPixelBusLg<NeoRgbUcs8903Feature, NeoEsp32I2s0800KbpsMethod, NeoGammaNullMethod>
-#define B_32_I1_UCS_3 NeoPixelBusLg<NeoRgbUcs8903Feature, NeoEsp32I2s1800KbpsMethod, NeoGammaNullMethod>
-#define B_32_I1_UCS_3P NeoPixelBusLg<NeoRgbUcs8903Feature, NeoEsp32I2s1X8800KbpsMethod, NeoGammaNullMethod> // parallel I2S
+#define B_32_I2_UCS_3 NeoPixelBusLg<NeoRgbUcs8903Feature, X1800KbpsMethod, NeoGammaNullMethod>
+#define B_32_IP_UCS_3 NeoPixelBusLg<NeoRgbUcs8903Feature, X8800KbpsMethod, NeoGammaNullMethod> // parallel I2S
 //UCS8904
 #define B_32_RN_UCS_4 NeoPixelBusLg<NeoRgbwUcs8904Feature, NeoEsp32RmtNWs2812xMethod, NeoGammaNullMethod>
-#define B_32_I0_UCS_4 NeoPixelBusLg<NeoRgbwUcs8904Feature, NeoEsp32I2s0800KbpsMethod, NeoGammaNullMethod>
-#define B_32_I1_UCS_4 NeoPixelBusLg<NeoRgbwUcs8904Feature, NeoEsp32I2s1800KbpsMethod, NeoGammaNullMethod>
-#define B_32_I1_UCS_4P NeoPixelBusLg<NeoRgbwUcs8904Feature, NeoEsp32I2s1X8800KbpsMethod, NeoGammaNullMethod>// parallel I2S
+#define B_32_I2_UCS_4 NeoPixelBusLg<NeoRgbwUcs8904Feature, X1800KbpsMethod, NeoGammaNullMethod>
+#define B_32_IP_UCS_4 NeoPixelBusLg<NeoRgbwUcs8904Feature, X8800KbpsMethod, NeoGammaNullMethod>// parallel I2S
 //APA106
 #define B_32_RN_APA106_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32RmtNApa106Method, NeoGammaNullMethod>
-#define B_32_I0_APA106_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32I2s0Apa106Method, NeoGammaNullMethod>
-#define B_32_I1_APA106_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32I2s1Apa106Method, NeoGammaNullMethod>
-#define B_32_I1_APA106_3P NeoPixelBusLg<NeoGrbFeature, NeoEsp32I2s1X8Apa106Method, NeoGammaNullMethod> // parallel I2S
+#define B_32_I2_APA106_3 NeoPixelBusLg<NeoGrbFeature, X1Apa106Method, NeoGammaNullMethod>
+#define B_32_IP_APA106_3 NeoPixelBusLg<NeoGrbFeature, X8Apa106Method, NeoGammaNullMethod> // parallel I2S
 //FW1906 GRBCW
 #define B_32_RN_FW6_5 NeoPixelBusLg<NeoGrbcwxFeature, NeoEsp32RmtNWs2812xMethod, NeoGammaNullMethod>
-#define B_32_I0_FW6_5 NeoPixelBusLg<NeoGrbcwxFeature, NeoEsp32I2s0800KbpsMethod, NeoGammaNullMethod>
-#define B_32_I1_FW6_5 NeoPixelBusLg<NeoGrbcwxFeature, NeoEsp32I2s1800KbpsMethod, NeoGammaNullMethod>
-#define B_32_I1_FW6_5P NeoPixelBusLg<NeoGrbcwxFeature, NeoEsp32I2s1X8800KbpsMethod, NeoGammaNullMethod> // parallel I2S
+#define B_32_I2_FW6_5 NeoPixelBusLg<NeoGrbcwxFeature, X1800KbpsMethod, NeoGammaNullMethod>
+#define B_32_IP_FW6_5 NeoPixelBusLg<NeoGrbcwxFeature, X8800KbpsMethod, NeoGammaNullMethod> // parallel I2S
 //WS2805 RGBWC
 #define B_32_RN_2805_5 NeoPixelBusLg<NeoGrbwwFeature, NeoEsp32RmtNWs2805Method, NeoGammaNullMethod>
-#define B_32_I0_2805_5 NeoPixelBusLg<NeoGrbwwFeature, NeoEsp32I2s0Ws2805Method, NeoGammaNullMethod>
-#define B_32_I1_2805_5 NeoPixelBusLg<NeoGrbwwFeature, NeoEsp32I2s1Ws2805Method, NeoGammaNullMethod>
-#define B_32_I1_2805_5P NeoPixelBusLg<NeoGrbwwFeature, NeoEsp32I2s1X8Ws2805Method, NeoGammaNullMethod> // parallel I2S
+#define B_32_I2_2805_5 NeoPixelBusLg<NeoGrbwwFeature, X1Ws2805Method, NeoGammaNullMethod>
+#define B_32_IP_2805_5 NeoPixelBusLg<NeoGrbwwFeature, X8Ws2805Method, NeoGammaNullMethod> // parallel I2S
 //TM1914 (RGB)
 #define B_32_RN_TM1914_3 NeoPixelBusLg<NeoGrbTm1914Feature, NeoEsp32RmtNTm1914Method, NeoGammaNullMethod>
-#define B_32_I0_TM1914_3 NeoPixelBusLg<NeoGrbTm1914Feature, NeoEsp32I2s0Tm1914Method, NeoGammaNullMethod>
-#define B_32_I1_TM1914_3 NeoPixelBusLg<NeoGrbTm1914Feature, NeoEsp32I2s1Tm1914Method, NeoGammaNullMethod>
-#define B_32_I1_TM1914_3P NeoPixelBusLg<NeoGrbTm1914Feature, NeoEsp32I2s1X8Tm1914Method, NeoGammaNullMethod> // parallel I2S
+#define B_32_I2_TM1914_3 NeoPixelBusLg<NeoGrbTm1914Feature, X1Tm1914Method, NeoGammaNullMethod>
+#define B_32_IP_TM1914_3 NeoPixelBusLg<NeoGrbTm1914Feature, X8Tm1914Method, NeoGammaNullMethod> // parallel I2S
 //Sm16825 (RGBWC)
 #define B_32_RN_SM16825_5 NeoPixelBusLg<NeoRgbcwSm16825eFeature, NeoEsp32RmtNWs2812xMethod, NeoGammaNullMethod>
-#define B_32_I0_SM16825_5 NeoPixelBusLg<NeoRgbcwSm16825eFeature, NeoEsp32I2s0Ws2812xMethod, NeoGammaNullMethod>
-#define B_32_I1_SM16825_5 NeoPixelBusLg<NeoRgbcwSm16825eFeature, NeoEsp32I2s1Ws2812xMethod, NeoGammaNullMethod>
-#define B_32_I1_SM16825_5P NeoPixelBusLg<NeoRgbcwSm16825eFeature, NeoEsp32I2s1X8Ws2812xMethod, NeoGammaNullMethod> // parallel I2S
+#define B_32_I2_SM16825_5 NeoPixelBusLg<NeoRgbcwSm16825eFeature, X1Ws2812xMethod, NeoGammaNullMethod>
+#define B_32_IP_SM16825_5 NeoPixelBusLg<NeoRgbcwSm16825eFeature, X8Ws2812xMethod, NeoGammaNullMethod> // parallel I2S
 #endif

 //APA102
@ -328,11 +331,11 @@
 //handles pointer type conversion for all possible bus types
 class PolyBus {
  private:
-    static bool useParallelI2S;
+    static bool _useParallelI2S;

  public:
-    static inline void setParallelI2S1Output(bool b = true) { useParallelI2S = b; }
-    static inline bool isParallelI2S1Output(void) { return useParallelI2S; }
+    static inline void setParallelI2S1Output(bool b = true) { _useParallelI2S = b; }
+    static inline bool isParallelI2S1Output(void) { return _useParallelI2S; }

  // initialize SPI bus speed for DotStar methods
  template <class T>
@ -436,34 +439,19 @@ class PolyBus {
      case I_32_RN_TM1914_3: beginTM1914<B_32_RN_TM1914_3*>(busPtr); break;
      case I_32_RN_SM16825_5: (static_cast<B_32_RN_SM16825_5*>(busPtr))->Begin(); break;
      // I2S1 bus or parellel buses
-      #ifndef WLED_NO_I2S1_PIXELBUS
-      case I_32_I1_NEO_3: if (useParallelI2S) (static_cast<B_32_I1_NEO_3P*>(busPtr))->Begin(); else (static_cast<B_32_I1_NEO_3*>(busPtr))->Begin(); break;
-      case I_32_I1_NEO_4: if (useParallelI2S) (static_cast<B_32_I1_NEO_4P*>(busPtr))->Begin(); else (static_cast<B_32_I1_NEO_4*>(busPtr))->Begin(); break;
-      case I_32_I1_400_3: if (useParallelI2S) (static_cast<B_32_I1_400_3P*>(busPtr))->Begin(); else (static_cast<B_32_I1_400_3*>(busPtr))->Begin(); break;
-      case I_32_I1_TM1_4: if (useParallelI2S) beginTM1814<B_32_I1_TM1_4P*>(busPtr); else beginTM1814<B_32_I1_TM1_4*>(busPtr); break;
-      case I_32_I1_TM2_3: if (useParallelI2S) (static_cast<B_32_I1_TM2_3P*>(busPtr))->Begin(); else (static_cast<B_32_I1_TM2_3*>(busPtr))->Begin(); break;
-      case I_32_I1_UCS_3: if (useParallelI2S) (static_cast<B_32_I1_UCS_3P*>(busPtr))->Begin(); else (static_cast<B_32_I1_UCS_3*>(busPtr))->Begin(); break;
-      case I_32_I1_UCS_4: if (useParallelI2S) (static_cast<B_32_I1_UCS_4P*>(busPtr))->Begin(); else (static_cast<B_32_I1_UCS_4*>(busPtr))->Begin(); break;
-      case I_32_I1_FW6_5: if (useParallelI2S) (static_cast<B_32_I1_FW6_5P*>(busPtr))->Begin(); else (static_cast<B_32_I1_FW6_5*>(busPtr))->Begin(); break;
-      case I_32_I1_APA106_3: if (useParallelI2S) (static_cast<B_32_I1_APA106_3P*>(busPtr))->Begin(); else (static_cast<B_32_I1_APA106_3*>(busPtr))->Begin(); break;
-      case I_32_I1_2805_5: if (useParallelI2S) (static_cast<B_32_I1_2805_5P*>(busPtr))->Begin(); else (static_cast<B_32_I1_2805_5*>(busPtr))->Begin(); break;
-      case I_32_I1_TM1914_3: if (useParallelI2S) beginTM1914<B_32_I1_TM1914_3P*>(busPtr); else beginTM1914<B_32_I1_TM1914_3*>(busPtr); break;
-      case I_32_I1_SM16825_5: if (useParallelI2S) (static_cast<B_32_I1_SM16825_5P*>(busPtr))->Begin(); else (static_cast<B_32_I1_SM16825_5*>(busPtr))->Begin(); break;
-      #endif
-      // I2S0 bus
-      #ifndef WLED_NO_I2S0_PIXELBUS
-      case I_32_I0_NEO_3: (static_cast<B_32_I0_NEO_3*>(busPtr))->Begin(); break;
-      case I_32_I0_NEO_4: (static_cast<B_32_I0_NEO_4*>(busPtr))->Begin(); break;
-      case I_32_I0_400_3: (static_cast<B_32_I0_400_3*>(busPtr))->Begin(); break;
-      case I_32_I0_TM1_4: beginTM1814<B_32_I0_TM1_4*>(busPtr); break;
-      case I_32_I0_TM2_3: (static_cast<B_32_I0_TM2_3*>(busPtr))->Begin(); break;
-      case I_32_I0_UCS_3: (static_cast<B_32_I0_UCS_3*>(busPtr))->Begin(); break;
-      case I_32_I0_UCS_4: (static_cast<B_32_I0_UCS_4*>(busPtr))->Begin(); break;
-      case I_32_I0_FW6_5: (static_cast<B_32_I0_FW6_5*>(busPtr))->Begin(); break;
-      case I_32_I0_APA106_3: (static_cast<B_32_I0_APA106_3*>(busPtr))->Begin(); break;
-      case I_32_I0_2805_5: (static_cast<B_32_I0_2805_5*>(busPtr))->Begin(); break;
-      case I_32_I0_TM1914_3: beginTM1914<B_32_I0_TM1914_3*>(busPtr); break;
-      case I_32_I0_SM16825_5: (static_cast<B_32_I0_SM16825_5*>(busPtr))->Begin(); break;
+      #ifndef CONFIG_IDF_TARGET_ESP32C3
+      case I_32_I2_NEO_3: if (_useParallelI2S) (static_cast<B_32_IP_NEO_3*>(busPtr))->Begin(); else (static_cast<B_32_I2_NEO_3*>(busPtr))->Begin(); break;
+      case I_32_I2_NEO_4: if (_useParallelI2S) (static_cast<B_32_IP_NEO_4*>(busPtr))->Begin(); else (static_cast<B_32_I2_NEO_4*>(busPtr))->Begin(); break;
+      case I_32_I2_400_3: if (_useParallelI2S) (static_cast<B_32_IP_400_3*>(busPtr))->Begin(); else (static_cast<B_32_I2_400_3*>(busPtr))->Begin(); break;
+      case I_32_I2_TM1_4: if (_useParallelI2S) beginTM1814<B_32_IP_TM1_4*>(busPtr); else beginTM1814<B_32_I2_TM1_4*>(busPtr); break;
+      case I_32_I2_TM2_3: if (_useParallelI2S) (static_cast<B_32_IP_TM2_3*>(busPtr))->Begin(); else (static_cast<B_32_I2_TM2_3*>(busPtr))->Begin(); break;
+      case I_32_I2_UCS_3: if (_useParallelI2S) (static_cast<B_32_IP_UCS_3*>(busPtr))->Begin(); else (static_cast<B_32_I2_UCS_3*>(busPtr))->Begin(); break;
+      case I_32_I2_UCS_4: if (_useParallelI2S) (static_cast<B_32_IP_UCS_4*>(busPtr))->Begin(); else (static_cast<B_32_I2_UCS_4*>(busPtr))->Begin(); break;
+      case I_32_I2_FW6_5: if (_useParallelI2S) (static_cast<B_32_IP_FW6_5*>(busPtr))->Begin(); else (static_cast<B_32_I2_FW6_5*>(busPtr))->Begin(); break;
+      case I_32_I2_APA106_3: if (_useParallelI2S) (static_cast<B_32_IP_APA106_3*>(busPtr))->Begin(); else (static_cast<B_32_I2_APA106_3*>(busPtr))->Begin(); break;
+      case I_32_I2_2805_5: if (_useParallelI2S) (static_cast<B_32_IP_2805_5*>(busPtr))->Begin(); else (static_cast<B_32_I2_2805_5*>(busPtr))->Begin(); break;
+      case I_32_I2_TM1914_3: if (_useParallelI2S) beginTM1914<B_32_IP_TM1914_3*>(busPtr); else beginTM1914<B_32_I2_TM1914_3*>(busPtr); break;
+      case I_32_I2_SM16825_5: if (_useParallelI2S) (static_cast<B_32_IP_SM16825_5*>(busPtr))->Begin(); else (static_cast<B_32_I2_SM16825_5*>(busPtr))->Begin(); break;
      #endif
      // ESP32 can (and should, to avoid inadvertantly driving the chip select signal) specify the pins used for SPI, but only in begin()
      case I_HS_DOT_3: beginDotStar<B_HS_DOT_3*>(busPtr, pins[1], -1, pins[0], -1, clock_kHz); break;
@ -484,8 +472,8 @@ class PolyBus {
    #if defined(ARDUINO_ARCH_ESP32) && !(defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3))
    // NOTE: "channel" is only used on ESP32 (and its variants) for RMT channel allocation
    // since 0.15.0-b3 I2S1 is favoured for classic ESP32 and moved to position 0 (channel 0) so we need to subtract 1 for correct RMT allocation
-    if (useParallelI2S && channel > 7) channel -= 8; // accommodate parallel I2S1 which is used 1st on classic ESP32
-    else if (channel > 0) channel--; // accommodate I2S1 which is used as 1st bus on classic ESP32
+    if (!_useParallelI2S && channel > 0) channel--; // accommodate I2S1 which is used as 1st bus on classic ESP32
+    // if user selected parallel I2S, RMT is used 1st (8 channels) followed by parallel I2S (8 channels)
    #endif
    void* busPtr = nullptr;
    switch (busType) {
@ -555,34 +543,19 @@ class PolyBus {
      case I_32_RN_TM1914_3: busPtr = new B_32_RN_TM1914_3(len, pins[0], (NeoBusChannel)channel); break;
      case I_32_RN_SM16825_5: busPtr = new B_32_RN_SM16825_5(len, pins[0], (NeoBusChannel)channel); break;
      // I2S1 bus or paralell buses
-      #ifndef WLED_NO_I2S1_PIXELBUS
-      case I_32_I1_NEO_3: if (useParallelI2S) busPtr = new B_32_I1_NEO_3P(len, pins[0]); else busPtr = new B_32_I1_NEO_3(len, pins[0]); break;
-      case I_32_I1_NEO_4: if (useParallelI2S) busPtr = new B_32_I1_NEO_4P(len, pins[0]); else busPtr = new B_32_I1_NEO_4(len, pins[0]); break;
-      case I_32_I1_400_3: if (useParallelI2S) busPtr = new B_32_I1_400_3P(len, pins[0]); else busPtr = new B_32_I1_400_3(len, pins[0]); break;
-      case I_32_I1_TM1_4: if (useParallelI2S) busPtr = new B_32_I1_TM1_4P(len, pins[0]); else busPtr = new B_32_I1_TM1_4(len, pins[0]); break;
-      case I_32_I1_TM2_3: if (useParallelI2S) busPtr = new B_32_I1_TM2_3P(len, pins[0]); else busPtr = new B_32_I1_TM2_3(len, pins[0]); break;
-      case I_32_I1_UCS_3: if (useParallelI2S) busPtr = new B_32_I1_UCS_3P(len, pins[0]); else busPtr = new B_32_I1_UCS_3(len, pins[0]); break;
-      case I_32_I1_UCS_4: if (useParallelI2S) busPtr = new B_32_I1_UCS_4P(len, pins[0]); else busPtr = new B_32_I1_UCS_4(len, pins[0]); break;
-      case I_32_I1_APA106_3: if (useParallelI2S) busPtr = new B_32_I1_APA106_3P(len, pins[0]); else busPtr = new B_32_I1_APA106_3(len, pins[0]); break;
-      case I_32_I1_FW6_5: if (useParallelI2S) busPtr = new B_32_I1_FW6_5P(len, pins[0]); else busPtr = new B_32_I1_FW6_5(len, pins[0]); break;
-      case I_32_I1_2805_5: if (useParallelI2S) busPtr = new B_32_I1_2805_5P(len, pins[0]); else busPtr = new B_32_I1_2805_5(len, pins[0]); break;
-      case I_32_I1_TM1914_3: if (useParallelI2S) busPtr = new B_32_I1_TM1914_3P(len, pins[0]); else busPtr = new B_32_I1_TM1914_3(len, pins[0]); break;
-      case I_32_I1_SM16825_5: if (useParallelI2S) busPtr = new B_32_I1_SM16825_5P(len, pins[0]); else busPtr = new B_32_I1_SM16825_5(len, pins[0]); break;
-      #endif
-      // I2S0 bus
-      #ifndef WLED_NO_I2S0_PIXELBUS
-      case I_32_I0_NEO_3: busPtr = new B_32_I0_NEO_3(len, pins[0]); break;
-      case I_32_I0_NEO_4: busPtr = new B_32_I0_NEO_4(len, pins[0]); break;
-      case I_32_I0_400_3: busPtr = new B_32_I0_400_3(len, pins[0]); break;
-      case I_32_I0_TM1_4: busPtr = new B_32_I0_TM1_4(len, pins[0]); break;
-      case I_32_I0_TM2_3: busPtr = new B_32_I0_TM2_3(len, pins[0]); break;
-      case I_32_I0_UCS_3: busPtr = new B_32_I0_UCS_3(len, pins[0]); break;
-      case I_32_I0_UCS_4: busPtr = new B_32_I0_UCS_4(len, pins[0]); break;
-      case I_32_I0_APA106_3: busPtr = new B_32_I0_APA106_3(len, pins[0]); break;
-      case I_32_I0_FW6_5: busPtr = new B_32_I0_FW6_5(len, pins[0]); break;
-      case I_32_I0_2805_5: busPtr = new B_32_I0_2805_5(len, pins[0]); break;
-      case I_32_I0_TM1914_3: busPtr = new B_32_I0_TM1914_3(len, pins[0]); break;
-      case I_32_I0_SM16825_5: busPtr = new B_32_I0_SM16825_5(len, pins[0]); break;
+      #ifndef CONFIG_IDF_TARGET_ESP32C3
+      case I_32_I2_NEO_3: if (_useParallelI2S) busPtr = new B_32_IP_NEO_3(len, pins[0]); else busPtr = new B_32_I2_NEO_3(len, pins[0]); break;
+      case I_32_I2_NEO_4: if (_useParallelI2S) busPtr = new B_32_IP_NEO_4(len, pins[0]); else busPtr = new B_32_I2_NEO_4(len, pins[0]); break;
+      case I_32_I2_400_3: if (_useParallelI2S) busPtr = new B_32_IP_400_3(len, pins[0]); else busPtr = new B_32_I2_400_3(len, pins[0]); break;
+      case I_32_I2_TM1_4: if (_useParallelI2S) busPtr = new B_32_IP_TM1_4(len, pins[0]); else busPtr = new B_32_I2_TM1_4(len, pins[0]); break;
+      case I_32_I2_TM2_3: if (_useParallelI2S) busPtr = new B_32_IP_TM2_3(len, pins[0]); else busPtr = new B_32_I2_TM2_3(len, pins[0]); break;
+      case I_32_I2_UCS_3: if (_useParallelI2S) busPtr = new B_32_IP_UCS_3(len, pins[0]); else busPtr = new B_32_I2_UCS_3(len, pins[0]); break;
+      case I_32_I2_UCS_4: if (_useParallelI2S) busPtr = new B_32_IP_UCS_4(len, pins[0]); else busPtr = new B_32_I2_UCS_4(len, pins[0]); break;
+      case I_32_I2_APA106_3: if (_useParallelI2S) busPtr = new B_32_IP_APA106_3(len, pins[0]); else busPtr = new B_32_I2_APA106_3(len, pins[0]); break;
+      case I_32_I2_FW6_5: if (_useParallelI2S) busPtr = new B_32_IP_FW6_5(len, pins[0]); else busPtr = new B_32_I2_FW6_5(len, pins[0]); break;
+      case I_32_I2_2805_5: if (_useParallelI2S) busPtr = new B_32_IP_2805_5(len, pins[0]); else busPtr = new B_32_I2_2805_5(len, pins[0]); break;
+      case I_32_I2_TM1914_3: if (_useParallelI2S) busPtr = new B_32_IP_TM1914_3(len, pins[0]); else busPtr = new B_32_I2_TM1914_3(len, pins[0]); break;
+      case I_32_I2_SM16825_5: if (_useParallelI2S) busPtr = new B_32_IP_SM16825_5(len, pins[0]); else busPtr = new B_32_I2_SM16825_5(len, pins[0]); break;
      #endif
    #endif
      // for 2-wire: pins[1] is clk, pins[0] is dat.  begin expects (len, clk, dat)
@ -669,34 +642,19 @@ class PolyBus {
      case I_32_RN_TM1914_3: (static_cast<B_32_RN_TM1914_3*>(busPtr))->Show(consistent); break;
      case I_32_RN_SM16825_5: (static_cast<B_32_RN_SM16825_5*>(busPtr))->Show(consistent); break;
      // I2S1 bus or paralell buses
-      #ifndef WLED_NO_I2S1_PIXELBUS
-      case I_32_I1_NEO_3: if (useParallelI2S) (static_cast<B_32_I1_NEO_3P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_NEO_3*>(busPtr))->Show(consistent); break;
-      case I_32_I1_NEO_4: if (useParallelI2S) (static_cast<B_32_I1_NEO_4P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_NEO_4*>(busPtr))->Show(consistent); break;
-      case I_32_I1_400_3: if (useParallelI2S) (static_cast<B_32_I1_400_3P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_400_3*>(busPtr))->Show(consistent); break;
-      case I_32_I1_TM1_4: if (useParallelI2S) (static_cast<B_32_I1_TM1_4P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_TM1_4*>(busPtr))->Show(consistent); break;
-      case I_32_I1_TM2_3: if (useParallelI2S) (static_cast<B_32_I1_TM2_3P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_TM2_3*>(busPtr))->Show(consistent); break;
-      case I_32_I1_UCS_3: if (useParallelI2S) (static_cast<B_32_I1_UCS_3P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_UCS_3*>(busPtr))->Show(consistent); break;
-      case I_32_I1_UCS_4: if (useParallelI2S) (static_cast<B_32_I1_UCS_4P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_UCS_4*>(busPtr))->Show(consistent); break;
-      case I_32_I1_APA106_3: if (useParallelI2S) (static_cast<B_32_I1_APA106_3P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_APA106_3*>(busPtr))->Show(consistent); break;
-      case I_32_I1_FW6_5: if (useParallelI2S) (static_cast<B_32_I1_FW6_5P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_FW6_5*>(busPtr))->Show(consistent); break;
-      case I_32_I1_2805_5: if (useParallelI2S) (static_cast<B_32_I1_2805_5P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_2805_5*>(busPtr))->Show(consistent); break;
-      case I_32_I1_TM1914_3: if (useParallelI2S) (static_cast<B_32_I1_TM1914_3P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_TM1914_3*>(busPtr))->Show(consistent); break;
-      case I_32_I1_SM16825_5: if (useParallelI2S) (static_cast<B_32_I1_SM16825_5P*>(busPtr))->Show(consistent); else (static_cast<B_32_I1_SM16825_5*>(busPtr))->Show(consistent); break;
-      #endif
-      // I2S0 bus
-      #ifndef WLED_NO_I2S0_PIXELBUS
-      case I_32_I0_NEO_3: (static_cast<B_32_I0_NEO_3*>(busPtr))->Show(consistent); break;
-      case I_32_I0_NEO_4: (static_cast<B_32_I0_NEO_4*>(busPtr))->Show(consistent); break;
-      case I_32_I0_400_3: (static_cast<B_32_I0_400_3*>(busPtr))->Show(consistent); break;
-      case I_32_I0_TM1_4: (static_cast<B_32_I0_TM1_4*>(busPtr))->Show(consistent); break;
-      case I_32_I0_TM2_3: (static_cast<B_32_I0_TM2_3*>(busPtr))->Show(consistent); break;
-      case I_32_I0_UCS_3: (static_cast<B_32_I0_UCS_3*>(busPtr))->Show(consistent); break;
-      case I_32_I0_UCS_4: (static_cast<B_32_I0_UCS_4*>(busPtr))->Show(consistent); break;
-      case I_32_I0_APA106_3: (static_cast<B_32_I0_APA106_3*>(busPtr))->Show(consistent); break;
-      case I_32_I0_FW6_5: (static_cast<B_32_I0_FW6_5*>(busPtr))->Show(consistent); break;
-      case I_32_I0_2805_5: (static_cast<B_32_I0_2805_5*>(busPtr))->Show(consistent); break;
-      case I_32_I0_TM1914_3: (static_cast<B_32_I0_TM1914_3*>(busPtr))->Show(consistent); break;
-      case I_32_I0_SM16825_5: (static_cast<B_32_I0_SM16825_5*>(busPtr))->Show(consistent); break;
+      #ifndef CONFIG_IDF_TARGET_ESP32C3
+      case I_32_I2_NEO_3: if (_useParallelI2S) (static_cast<B_32_IP_NEO_3*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_NEO_3*>(busPtr))->Show(consistent); break;
+      case I_32_I2_NEO_4: if (_useParallelI2S) (static_cast<B_32_IP_NEO_4*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_NEO_4*>(busPtr))->Show(consistent); break;
+      case I_32_I2_400_3: if (_useParallelI2S) (static_cast<B_32_IP_400_3*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_400_3*>(busPtr))->Show(consistent); break;
+      case I_32_I2_TM1_4: if (_useParallelI2S) (static_cast<B_32_IP_TM1_4*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_TM1_4*>(busPtr))->Show(consistent); break;
+      case I_32_I2_TM2_3: if (_useParallelI2S) (static_cast<B_32_IP_TM2_3*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_TM2_3*>(busPtr))->Show(consistent); break;
+      case I_32_I2_UCS_3: if (_useParallelI2S) (static_cast<B_32_IP_UCS_3*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_UCS_3*>(busPtr))->Show(consistent); break;
+      case I_32_I2_UCS_4: if (_useParallelI2S) (static_cast<B_32_IP_UCS_4*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_UCS_4*>(busPtr))->Show(consistent); break;
+      case I_32_I2_APA106_3: if (_useParallelI2S) (static_cast<B_32_IP_APA106_3*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_APA106_3*>(busPtr))->Show(consistent); break;
+      case I_32_I2_FW6_5: if (_useParallelI2S) (static_cast<B_32_IP_FW6_5*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_FW6_5*>(busPtr))->Show(consistent); break;
+      case I_32_I2_2805_5: if (_useParallelI2S) (static_cast<B_32_IP_2805_5*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_2805_5*>(busPtr))->Show(consistent); break;
+      case I_32_I2_TM1914_3: if (_useParallelI2S) (static_cast<B_32_IP_TM1914_3*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_TM1914_3*>(busPtr))->Show(consistent); break;
+      case I_32_I2_SM16825_5: if (_useParallelI2S) (static_cast<B_32_IP_SM16825_5*>(busPtr))->Show(consistent); else (static_cast<B_32_I2_SM16825_5*>(busPtr))->Show(consistent); break;
      #endif
    #endif
      case I_HS_DOT_3: (static_cast<B_HS_DOT_3*>(busPtr))->Show(consistent); break;
@ -743,6 +701,7 @@ class PolyBus {
      case I_8266_U0_UCS_4: return (static_cast<B_8266_U0_UCS_4*>(busPtr))->CanShow(); break;
      case I_8266_U1_UCS_4: return (static_cast<B_8266_U1_UCS_4*>(busPtr))->CanShow(); break;
      case I_8266_DM_UCS_4: return (static_cast<B_8266_DM_UCS_4*>(busPtr))->CanShow(); break;
+      case I_8266_BB_UCS_4: return (static_cast<B_8266_BB_UCS_4*>(busPtr))->CanShow(); break;
      case I_8266_U0_APA106_3: return (static_cast<B_8266_U0_APA106_3*>(busPtr))->CanShow(); break;
      case I_8266_U1_APA106_3: return (static_cast<B_8266_U1_APA106_3*>(busPtr))->CanShow(); break;
      case I_8266_DM_APA106_3: return (static_cast<B_8266_DM_APA106_3*>(busPtr))->CanShow(); break;
@ -779,34 +738,19 @@ class PolyBus {
      case I_32_RN_TM1914_3: return (static_cast<B_32_RN_TM1914_3*>(busPtr))->CanShow(); break;
      case I_32_RN_SM16825_5: return (static_cast<B_32_RN_SM16825_5*>(busPtr))->CanShow(); break;
      // I2S1 bus or paralell buses
-      #ifndef WLED_NO_I2S1_PIXELBUS
-      case I_32_I1_NEO_3: if (useParallelI2S) return (static_cast<B_32_I1_NEO_3P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_NEO_3*>(busPtr))->CanShow(); break;
-      case I_32_I1_NEO_4: if (useParallelI2S) return (static_cast<B_32_I1_NEO_4P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_NEO_4*>(busPtr))->CanShow(); break;
-      case I_32_I1_400_3: if (useParallelI2S) return (static_cast<B_32_I1_400_3P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_400_3*>(busPtr))->CanShow(); break;
-      case I_32_I1_TM1_4: if (useParallelI2S) return (static_cast<B_32_I1_TM1_4P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_TM1_4*>(busPtr))->CanShow(); break;
-      case I_32_I1_TM2_3: if (useParallelI2S) return (static_cast<B_32_I1_TM2_3P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_TM2_3*>(busPtr))->CanShow(); break;
-      case I_32_I1_UCS_3: if (useParallelI2S) return (static_cast<B_32_I1_UCS_3P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_UCS_3*>(busPtr))->CanShow(); break;
-      case I_32_I1_UCS_4: if (useParallelI2S) return (static_cast<B_32_I1_UCS_4P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_UCS_4*>(busPtr))->CanShow(); break;
-      case I_32_I1_APA106_3: if (useParallelI2S) return (static_cast<B_32_I1_APA106_3P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_APA106_3*>(busPtr))->CanShow(); break;
-      case I_32_I1_FW6_5: if (useParallelI2S) return (static_cast<B_32_I1_FW6_5P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_FW6_5*>(busPtr))->CanShow(); break;
-      case I_32_I1_2805_5: if (useParallelI2S) return (static_cast<B_32_I1_2805_5P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_2805_5*>(busPtr))->CanShow(); break;
-      case I_32_I1_TM1914_3: if (useParallelI2S) return (static_cast<B_32_I1_TM1914_3P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_TM1914_3*>(busPtr))->CanShow(); break;
-      case I_32_I1_SM16825_5: if (useParallelI2S) return (static_cast<B_32_I1_SM16825_5P*>(busPtr))->CanShow(); else return (static_cast<B_32_I1_SM16825_5*>(busPtr))->CanShow(); break;
-      #endif
-      // I2S0 bus
-      #ifndef WLED_NO_I2S0_PIXELBUS
-      case I_32_I0_NEO_3: return (static_cast<B_32_I0_NEO_3*>(busPtr))->CanShow(); break;
-      case I_32_I0_NEO_4: return (static_cast<B_32_I0_NEO_4*>(busPtr))->CanShow(); break;
-      case I_32_I0_400_3: return (static_cast<B_32_I0_400_3*>(busPtr))->CanShow(); break;
-      case I_32_I0_TM1_4: return (static_cast<B_32_I0_TM1_4*>(busPtr))->CanShow(); break;
-      case I_32_I0_TM2_3: return (static_cast<B_32_I0_TM2_3*>(busPtr))->CanShow(); break;
-      case I_32_I0_UCS_3: return (static_cast<B_32_I0_UCS_3*>(busPtr))->CanShow(); break;
-      case I_32_I0_UCS_4: return (static_cast<B_32_I0_UCS_4*>(busPtr))->CanShow(); break;
-      case I_32_I0_APA106_3: return (static_cast<B_32_I0_APA106_3*>(busPtr))->CanShow(); break;
-      case I_32_I0_FW6_5: return (static_cast<B_32_I0_FW6_5*>(busPtr))->CanShow(); break;
-      case I_32_I0_2805_5: return (static_cast<B_32_I0_2805_5*>(busPtr))->CanShow(); break;
-      case I_32_I0_TM1914_3: return (static_cast<B_32_I0_TM1914_3*>(busPtr))->CanShow(); break;
-      case I_32_I0_SM16825_5: return (static_cast<B_32_I0_SM16825_5*>(busPtr))->CanShow(); break;
+      #ifndef CONFIG_IDF_TARGET_ESP32C3
+      case I_32_I2_NEO_3: if (_useParallelI2S) return (static_cast<B_32_IP_NEO_3*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_NEO_3*>(busPtr))->CanShow(); break;
+      case I_32_I2_NEO_4: if (_useParallelI2S) return (static_cast<B_32_IP_NEO_4*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_NEO_4*>(busPtr))->CanShow(); break;
+      case I_32_I2_400_3: if (_useParallelI2S) return (static_cast<B_32_IP_400_3*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_400_3*>(busPtr))->CanShow(); break;
+      case I_32_I2_TM1_4: if (_useParallelI2S) return (static_cast<B_32_IP_TM1_4*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_TM1_4*>(busPtr))->CanShow(); break;
+      case I_32_I2_TM2_3: if (_useParallelI2S) return (static_cast<B_32_IP_TM2_3*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_TM2_3*>(busPtr))->CanShow(); break;
+      case I_32_I2_UCS_3: if (_useParallelI2S) return (static_cast<B_32_IP_UCS_3*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_UCS_3*>(busPtr))->CanShow(); break;
+      case I_32_I2_UCS_4: if (_useParallelI2S) return (static_cast<B_32_IP_UCS_4*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_UCS_4*>(busPtr))->CanShow(); break;
+      case I_32_I2_APA106_3: if (_useParallelI2S) return (static_cast<B_32_IP_APA106_3*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_APA106_3*>(busPtr))->CanShow(); break;
+      case I_32_I2_FW6_5: if (_useParallelI2S) return (static_cast<B_32_IP_FW6_5*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_FW6_5*>(busPtr))->CanShow(); break;
+      case I_32_I2_2805_5: if (_useParallelI2S) return (static_cast<B_32_IP_2805_5*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_2805_5*>(busPtr))->CanShow(); break;
+      case I_32_I2_TM1914_3: if (_useParallelI2S) return (static_cast<B_32_IP_TM1914_3*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_TM1914_3*>(busPtr))->CanShow(); break;
+      case I_32_I2_SM16825_5: if (_useParallelI2S) return (static_cast<B_32_IP_SM16825_5*>(busPtr))->CanShow(); else return (static_cast<B_32_I2_SM16825_5*>(busPtr))->CanShow(); break;
      #endif
    #endif
      case I_HS_DOT_3: return (static_cast<B_HS_DOT_3*>(busPtr))->CanShow(); break;
@ -823,7 +767,7 @@ class PolyBus {
    return true;
  }

-  static void setPixelColor(void* busPtr, uint8_t busType, uint16_t pix, uint32_t c, uint8_t co, uint16_t wwcw = 0) {
+  [[gnu::hot]] static void setPixelColor(void* busPtr, uint8_t busType, uint16_t pix, uint32_t c, uint8_t co, uint16_t wwcw = 0) {
    uint8_t r = c >> 16;
    uint8_t g = c >> 8;
    uint8_t b = c >> 0;
@ -916,34 +860,19 @@ class PolyBus {
      case I_32_RN_TM1914_3: (static_cast<B_32_RN_TM1914_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
      case I_32_RN_SM16825_5: (static_cast<B_32_RN_SM16825_5*>(busPtr))->SetPixelColor(pix, Rgbww80Color(col.R*257, col.G*257, col.B*257, cctWW*257, cctCW*257)); break;
      // I2S1 bus or paralell buses
-      #ifndef WLED_NO_I2S1_PIXELBUS
-      case I_32_I1_NEO_3: if (useParallelI2S) (static_cast<B_32_I1_NEO_3P*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I1_NEO_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
-      case I_32_I1_NEO_4: if (useParallelI2S) (static_cast<B_32_I1_NEO_4P*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I1_NEO_4*>(busPtr))->SetPixelColor(pix, col); break;
-      case I_32_I1_400_3: if (useParallelI2S) (static_cast<B_32_I1_400_3P*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I1_400_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
-      case I_32_I1_TM1_4: if (useParallelI2S) (static_cast<B_32_I1_TM1_4P*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I1_TM1_4*>(busPtr))->SetPixelColor(pix, col); break;
-      case I_32_I1_TM2_3: if (useParallelI2S) (static_cast<B_32_I1_TM2_3P*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I1_TM2_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
-      case I_32_I1_UCS_3: if (useParallelI2S) (static_cast<B_32_I1_UCS_3P*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I1_UCS_3*>(busPtr))->SetPixelColor(pix, Rgb48Color(RgbColor(col))); break;
-      case I_32_I1_UCS_4: if (useParallelI2S) (static_cast<B_32_I1_UCS_4P*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I1_UCS_4*>(busPtr))->SetPixelColor(pix, Rgbw64Color(col)); break;
-      case I_32_I1_APA106_3: if (useParallelI2S) (static_cast<B_32_I1_APA106_3P*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I1_APA106_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
-      case I_32_I1_FW6_5: if (useParallelI2S) (static_cast<B_32_I1_FW6_5P*>(busPtr))->SetPixelColor(pix, RgbwwColor(col.R, col.G, col.B, cctWW, cctCW)); else (static_cast<B_32_I1_FW6_5*>(busPtr))->SetPixelColor(pix, RgbwwColor(col.R, col.G, col.B, cctWW, cctCW)); break;
-      case I_32_I1_2805_5: if (useParallelI2S) (static_cast<B_32_I1_2805_5P*>(busPtr))->SetPixelColor(pix, RgbwwColor(col.R, col.G, col.B, cctWW, cctCW)); else (static_cast<B_32_I1_2805_5*>(busPtr))->SetPixelColor(pix, RgbwwColor(col.R, col.G, col.B, cctWW, cctCW)); break;
-      case I_32_I1_TM1914_3: if (useParallelI2S) (static_cast<B_32_I1_TM1914_3P*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I1_TM1914_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
-      case I_32_I1_SM16825_5: if (useParallelI2S) (static_cast<B_32_I1_SM16825_5P*>(busPtr))->SetPixelColor(pix, Rgbww80Color(col.R*257, col.G*257, col.B*257, cctWW*257, cctCW*257)); else (static_cast<B_32_I1_SM16825_5*>(busPtr))->SetPixelColor(pix, Rgbww80Color(col.R*257, col.G*257, col.B*257, cctWW*257, cctCW*257)); break;
-      #endif
-      // I2S0 bus
-      #ifndef WLED_NO_I2S0_PIXELBUS
-      case I_32_I0_NEO_3: (static_cast<B_32_I0_NEO_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
-      case I_32_I0_NEO_4: (static_cast<B_32_I0_NEO_4*>(busPtr))->SetPixelColor(pix, col); break;
-      case I_32_I0_400_3: (static_cast<B_32_I0_400_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
-      case I_32_I0_TM1_4: (static_cast<B_32_I0_TM1_4*>(busPtr))->SetPixelColor(pix, col); break;
-      case I_32_I0_TM2_3: (static_cast<B_32_I0_TM2_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
-      case I_32_I0_UCS_3: (static_cast<B_32_I0_UCS_3*>(busPtr))->SetPixelColor(pix, Rgb48Color(RgbColor(col))); break;
-      case I_32_I0_UCS_4: (static_cast<B_32_I0_UCS_4*>(busPtr))->SetPixelColor(pix, Rgbw64Color(col)); break;
-      case I_32_I0_APA106_3: (static_cast<B_32_I0_APA106_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
-      case I_32_I0_FW6_5: (static_cast<B_32_I0_FW6_5*>(busPtr))->SetPixelColor(pix, RgbwwColor(col.R, col.G, col.B, cctWW, cctCW)); break;
-      case I_32_I0_2805_5: (static_cast<B_32_I0_2805_5*>(busPtr))->SetPixelColor(pix, RgbwwColor(col.R, col.G, col.B, cctWW, cctCW)); break;
-      case I_32_I0_TM1914_3: (static_cast<B_32_I0_TM1914_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
-      case I_32_I0_SM16825_5: (static_cast<B_32_I0_SM16825_5*>(busPtr))->SetPixelColor(pix, Rgbww80Color(col.R*257, col.G*257, col.B*257, cctWW*257, cctCW*257)); break;
+      #ifndef CONFIG_IDF_TARGET_ESP32C3
+      case I_32_I2_NEO_3: if (_useParallelI2S) (static_cast<B_32_IP_NEO_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I2_NEO_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
+      case I_32_I2_NEO_4: if (_useParallelI2S) (static_cast<B_32_IP_NEO_4*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I2_NEO_4*>(busPtr))->SetPixelColor(pix, col); break;
+      case I_32_I2_400_3: if (_useParallelI2S) (static_cast<B_32_IP_400_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I2_400_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
+      case I_32_I2_TM1_4: if (_useParallelI2S) (static_cast<B_32_IP_TM1_4*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I2_TM1_4*>(busPtr))->SetPixelColor(pix, col); break;
+      case I_32_I2_TM2_3: if (_useParallelI2S) (static_cast<B_32_IP_TM2_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I2_TM2_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
+      case I_32_I2_UCS_3: if (_useParallelI2S) (static_cast<B_32_IP_UCS_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I2_UCS_3*>(busPtr))->SetPixelColor(pix, Rgb48Color(RgbColor(col))); break;
+      case I_32_I2_UCS_4: if (_useParallelI2S) (static_cast<B_32_IP_UCS_4*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I2_UCS_4*>(busPtr))->SetPixelColor(pix, Rgbw64Color(col)); break;
+      case I_32_I2_APA106_3: if (_useParallelI2S) (static_cast<B_32_IP_APA106_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I2_APA106_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
+      case I_32_I2_FW6_5: if (_useParallelI2S) (static_cast<B_32_IP_FW6_5*>(busPtr))->SetPixelColor(pix, RgbwwColor(col.R, col.G, col.B, cctWW, cctCW)); else (static_cast<B_32_I2_FW6_5*>(busPtr))->SetPixelColor(pix, RgbwwColor(col.R, col.G, col.B, cctWW, cctCW)); break;
+      case I_32_I2_2805_5: if (_useParallelI2S) (static_cast<B_32_IP_2805_5*>(busPtr))->SetPixelColor(pix, RgbwwColor(col.R, col.G, col.B, cctWW, cctCW)); else (static_cast<B_32_I2_2805_5*>(busPtr))->SetPixelColor(pix, RgbwwColor(col.R, col.G, col.B, cctWW, cctCW)); break;
+      case I_32_I2_TM1914_3: if (_useParallelI2S) (static_cast<B_32_IP_TM1914_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); else (static_cast<B_32_I2_TM1914_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
+      case I_32_I2_SM16825_5: if (_useParallelI2S) (static_cast<B_32_IP_SM16825_5*>(busPtr))->SetPixelColor(pix, Rgbww80Color(col.R*257, col.G*257, col.B*257, cctWW*257, cctCW*257)); else (static_cast<B_32_I2_SM16825_5*>(busPtr))->SetPixelColor(pix, Rgbww80Color(col.R*257, col.G*257, col.B*257, cctWW*257, cctCW*257)); break;
      #endif
    #endif
      case I_HS_DOT_3: (static_cast<B_HS_DOT_3*>(busPtr))->SetPixelColor(pix, RgbColor(col)); break;
@ -1027,34 +956,19 @@ class PolyBus {
      case I_32_RN_TM1914_3: (static_cast<B_32_RN_TM1914_3*>(busPtr))->SetLuminance(b); break;
      case I_32_RN_SM16825_5: (static_cast<B_32_RN_SM16825_5*>(busPtr))->SetLuminance(b); break;
      // I2S1 bus or paralell buses
-      #ifndef WLED_NO_I2S1_PIXELBUS
-      case I_32_I1_NEO_3: if (useParallelI2S) (static_cast<B_32_I1_NEO_3P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_NEO_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_NEO_4: if (useParallelI2S) (static_cast<B_32_I1_NEO_4P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_NEO_4*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_400_3: if (useParallelI2S) (static_cast<B_32_I1_400_3P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_400_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_TM1_4: if (useParallelI2S) (static_cast<B_32_I1_TM1_4P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_TM1_4*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_TM2_3: if (useParallelI2S) (static_cast<B_32_I1_TM2_3P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_TM2_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_UCS_3: if (useParallelI2S) (static_cast<B_32_I1_UCS_3P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_UCS_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_UCS_4: if (useParallelI2S) (static_cast<B_32_I1_UCS_4P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_UCS_4*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_APA106_3: if (useParallelI2S) (static_cast<B_32_I1_APA106_3P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_APA106_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_FW6_5: if (useParallelI2S) (static_cast<B_32_I1_FW6_5P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_FW6_5*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_2805_5: if (useParallelI2S) (static_cast<B_32_I1_2805_5P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_2805_5*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_TM1914_3: if (useParallelI2S) (static_cast<B_32_I1_TM1914_3P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_TM1914_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I1_SM16825_5: if (useParallelI2S) (static_cast<B_32_I1_SM16825_5P*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I1_SM16825_5*>(busPtr))->SetLuminance(b); break;
-      #endif
-      // I2S0 bus
-      #ifndef WLED_NO_I2S0_PIXELBUS
-      case I_32_I0_NEO_3: (static_cast<B_32_I0_NEO_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_NEO_4: (static_cast<B_32_I0_NEO_4*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_400_3: (static_cast<B_32_I0_400_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_TM1_4: (static_cast<B_32_I0_TM1_4*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_TM2_3: (static_cast<B_32_I0_TM2_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_UCS_3: (static_cast<B_32_I0_UCS_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_UCS_4: (static_cast<B_32_I0_UCS_4*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_APA106_3: (static_cast<B_32_I0_APA106_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_FW6_5: (static_cast<B_32_I0_FW6_5*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_2805_5: (static_cast<B_32_I0_2805_5*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_TM1914_3: (static_cast<B_32_I0_TM1914_3*>(busPtr))->SetLuminance(b); break;
-      case I_32_I0_SM16825_5: (static_cast<B_32_I0_SM16825_5*>(busPtr))->SetLuminance(b); break;
+      #ifndef CONFIG_IDF_TARGET_ESP32C3
+      case I_32_I2_NEO_3: if (_useParallelI2S) (static_cast<B_32_IP_NEO_3*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_NEO_3*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_NEO_4: if (_useParallelI2S) (static_cast<B_32_IP_NEO_4*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_NEO_4*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_400_3: if (_useParallelI2S) (static_cast<B_32_IP_400_3*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_400_3*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_TM1_4: if (_useParallelI2S) (static_cast<B_32_IP_TM1_4*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_TM1_4*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_TM2_3: if (_useParallelI2S) (static_cast<B_32_IP_TM2_3*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_TM2_3*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_UCS_3: if (_useParallelI2S) (static_cast<B_32_IP_UCS_3*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_UCS_3*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_UCS_4: if (_useParallelI2S) (static_cast<B_32_IP_UCS_4*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_UCS_4*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_APA106_3: if (_useParallelI2S) (static_cast<B_32_IP_APA106_3*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_APA106_3*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_FW6_5: if (_useParallelI2S) (static_cast<B_32_IP_FW6_5*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_FW6_5*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_2805_5: if (_useParallelI2S) (static_cast<B_32_IP_2805_5*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_2805_5*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_TM1914_3: if (_useParallelI2S) (static_cast<B_32_IP_TM1914_3*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_TM1914_3*>(busPtr))->SetLuminance(b); break;
+      case I_32_I2_SM16825_5: if (_useParallelI2S) (static_cast<B_32_IP_SM16825_5*>(busPtr))->SetLuminance(b); else (static_cast<B_32_I2_SM16825_5*>(busPtr))->SetLuminance(b); break;
      #endif
    #endif
      case I_HS_DOT_3: (static_cast<B_HS_DOT_3*>(busPtr))->SetLuminance(b); break;
@ -1070,7 +984,7 @@ class PolyBus {
    }
  }

-  static uint32_t getPixelColor(void* busPtr, uint8_t busType, uint16_t pix, uint8_t co) {
+  [[gnu::hot]] static uint32_t getPixelColor(void* busPtr, uint8_t busType, uint16_t pix, uint8_t co) {
    RgbwColor col(0,0,0,0);
    switch (busType) {
      case I_NONE: break;
@ -1139,34 +1053,19 @@ class PolyBus {
      case I_32_RN_TM1914_3: col = (static_cast<B_32_RN_TM1914_3*>(busPtr))->GetPixelColor(pix); break;
      case I_32_RN_SM16825_5: { Rgbww80Color c = (static_cast<B_32_RN_SM16825_5*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R/257,c.G/257,c.B/257,max(c.WW,c.CW)/257); } break; // will not return original W
      // I2S1 bus or paralell buses
-      #ifndef WLED_NO_I2S1_PIXELBUS
-      case I_32_I1_NEO_3: col = (useParallelI2S) ? (static_cast<B_32_I1_NEO_3P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_NEO_3*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I1_NEO_4: col = (useParallelI2S) ? (static_cast<B_32_I1_NEO_4P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_NEO_4*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I1_400_3: col = (useParallelI2S) ? (static_cast<B_32_I1_400_3P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_400_3*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I1_TM1_4: col = (useParallelI2S) ? (static_cast<B_32_I1_TM1_4P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_TM1_4*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I1_TM2_3: col = (useParallelI2S) ? (static_cast<B_32_I1_TM2_3P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_TM2_3*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I1_UCS_3: { Rgb48Color c = (useParallelI2S) ? (static_cast<B_32_I1_UCS_3P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_UCS_3*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R/257,c.G/257,c.B/257,0); } break;
-      case I_32_I1_UCS_4: { Rgbw64Color c = (useParallelI2S) ? (static_cast<B_32_I1_UCS_4P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_UCS_4*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R/257,c.G/257,c.B/257,c.W/257); } break;
-      case I_32_I1_APA106_3: col = (useParallelI2S) ? (static_cast<B_32_I1_APA106_3P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_APA106_3*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I1_FW6_5: { RgbwwColor c = (useParallelI2S) ? (static_cast<B_32_I1_FW6_5P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_FW6_5*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R,c.G,c.B,max(c.WW,c.CW)); } break; // will not return original W
-      case I_32_I1_2805_5: { RgbwwColor c = (useParallelI2S) ? (static_cast<B_32_I1_2805_5P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_2805_5*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R,c.G,c.B,max(c.WW,c.CW)); } break; // will not return original W
-      case I_32_I1_TM1914_3: col = (useParallelI2S) ? (static_cast<B_32_I1_TM1914_3P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_TM1914_3*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I1_SM16825_5: { Rgbww80Color c = (useParallelI2S) ? (static_cast<B_32_I1_SM16825_5P*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I1_SM16825_5*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R/257,c.G/257,c.B/257,max(c.WW,c.CW)/257); } break; // will not return original W
-      #endif
-      // I2S0 bus
-      #ifndef WLED_NO_I2S0_PIXELBUS
-      case I_32_I0_NEO_3: col = (static_cast<B_32_I0_NEO_3*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I0_NEO_4: col = (static_cast<B_32_I0_NEO_4*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I0_400_3: col = (static_cast<B_32_I0_400_3*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I0_TM1_4: col = (static_cast<B_32_I0_TM1_4*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I0_TM2_3: col = (static_cast<B_32_I0_TM2_3*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I0_UCS_3: { Rgb48Color c = (static_cast<B_32_I0_UCS_3*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R/257,c.G/257,c.B/257,0); } break;
-      case I_32_I0_UCS_4: { Rgbw64Color c = (static_cast<B_32_I0_UCS_4*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R/257,c.G/257,c.B/257,c.W/257); } break;
-      case I_32_I0_APA106_3: col = (static_cast<B_32_I0_APA106_3*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I0_FW6_5: { RgbwwColor c = (static_cast<B_32_I0_FW6_5*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R,c.G,c.B,max(c.WW,c.CW)); } break; // will not return original W
-      case I_32_I0_2805_5: { RgbwwColor c = (static_cast<B_32_I0_2805_5*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R,c.G,c.B,max(c.WW,c.CW)); } break; // will not return original W
-      case I_32_I0_TM1914_3: col = (static_cast<B_32_I0_TM1914_3*>(busPtr))->GetPixelColor(pix); break;
-      case I_32_I0_SM16825_5: { Rgbww80Color c = (static_cast<B_32_I0_SM16825_5*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R/257,c.G/257,c.B/257,max(c.WW,c.CW)/257); } break; // will not return original W
+      #ifndef CONFIG_IDF_TARGET_ESP32C3
+      case I_32_I2_NEO_3: col = (_useParallelI2S) ? (static_cast<B_32_IP_NEO_3*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_NEO_3*>(busPtr))->GetPixelColor(pix); break;
+      case I_32_I2_NEO_4: col = (_useParallelI2S) ? (static_cast<B_32_IP_NEO_4*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_NEO_4*>(busPtr))->GetPixelColor(pix); break;
+      case I_32_I2_400_3: col = (_useParallelI2S) ? (static_cast<B_32_IP_400_3*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_400_3*>(busPtr))->GetPixelColor(pix); break;
+      case I_32_I2_TM1_4: col = (_useParallelI2S) ? (static_cast<B_32_IP_TM1_4*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_TM1_4*>(busPtr))->GetPixelColor(pix); break;
+      case I_32_I2_TM2_3: col = (_useParallelI2S) ? (static_cast<B_32_IP_TM2_3*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_TM2_3*>(busPtr))->GetPixelColor(pix); break;
+      case I_32_I2_UCS_3: { Rgb48Color c = (_useParallelI2S) ? (static_cast<B_32_IP_UCS_3*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_UCS_3*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R/257,c.G/257,c.B/257,0); } break;
+      case I_32_I2_UCS_4: { Rgbw64Color c = (_useParallelI2S) ? (static_cast<B_32_IP_UCS_4*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_UCS_4*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R/257,c.G/257,c.B/257,c.W/257); } break;
+      case I_32_I2_APA106_3: col = (_useParallelI2S) ? (static_cast<B_32_IP_APA106_3*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_APA106_3*>(busPtr))->GetPixelColor(pix); break;
+      case I_32_I2_FW6_5: { RgbwwColor c = (_useParallelI2S) ? (static_cast<B_32_IP_FW6_5*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_FW6_5*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R,c.G,c.B,max(c.WW,c.CW)); } break; // will not return original W
+      case I_32_I2_2805_5: { RgbwwColor c = (_useParallelI2S) ? (static_cast<B_32_IP_2805_5*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_2805_5*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R,c.G,c.B,max(c.WW,c.CW)); } break; // will not return original W
+      case I_32_I2_TM1914_3: col = (_useParallelI2S) ? (static_cast<B_32_IP_TM1914_3*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_TM1914_3*>(busPtr))->GetPixelColor(pix); break;
+      case I_32_I2_SM16825_5: { Rgbww80Color c = (_useParallelI2S) ? (static_cast<B_32_IP_SM16825_5*>(busPtr))->GetPixelColor(pix) : (static_cast<B_32_I2_SM16825_5*>(busPtr))->GetPixelColor(pix); col = RGBW32(c.R/257,c.G/257,c.B/257,max(c.WW,c.CW)/257); } break; // will not return original W
      #endif
    #endif
      case I_HS_DOT_3: col = (static_cast<B_HS_DOT_3*>(busPtr))->GetPixelColor(pix); break;
@ -1269,34 +1168,19 @@ class PolyBus {
      case I_32_RN_TM1914_3: delete (static_cast<B_32_RN_TM1914_3*>(busPtr)); break;
      case I_32_RN_SM16825_5: delete (static_cast<B_32_RN_SM16825_5*>(busPtr)); break;
      // I2S1 bus or paralell buses
-      #ifndef WLED_NO_I2S1_PIXELBUS
-      case I_32_I1_NEO_3: if (useParallelI2S) delete (static_cast<B_32_I1_NEO_3P*>(busPtr)); else delete (static_cast<B_32_I1_NEO_3*>(busPtr)); break;
-      case I_32_I1_NEO_4: if (useParallelI2S) delete (static_cast<B_32_I1_NEO_4P*>(busPtr)); else delete (static_cast<B_32_I1_NEO_4*>(busPtr)); break;
-      case I_32_I1_400_3: if (useParallelI2S) delete (static_cast<B_32_I1_400_3P*>(busPtr)); else delete (static_cast<B_32_I1_400_3*>(busPtr)); break;
-      case I_32_I1_TM1_4: if (useParallelI2S) delete (static_cast<B_32_I1_TM1_4P*>(busPtr)); else delete (static_cast<B_32_I1_TM1_4*>(busPtr)); break;
-      case I_32_I1_TM2_3: if (useParallelI2S) delete (static_cast<B_32_I1_TM2_3P*>(busPtr)); else delete (static_cast<B_32_I1_TM2_3*>(busPtr)); break;
-      case I_32_I1_UCS_3: if (useParallelI2S) delete (static_cast<B_32_I1_UCS_3P*>(busPtr)); else delete (static_cast<B_32_I1_UCS_3*>(busPtr)); break;
-      case I_32_I1_UCS_4: if (useParallelI2S) delete (static_cast<B_32_I1_UCS_4P*>(busPtr)); else delete (static_cast<B_32_I1_UCS_4*>(busPtr)); break;
-      case I_32_I1_APA106_3: if (useParallelI2S) delete (static_cast<B_32_I1_APA106_3P*>(busPtr)); else delete (static_cast<B_32_I1_APA106_3*>(busPtr)); break;
-      case I_32_I1_FW6_5: if (useParallelI2S) delete (static_cast<B_32_I1_FW6_5P*>(busPtr)); else delete (static_cast<B_32_I1_FW6_5*>(busPtr)); break;
-      case I_32_I1_2805_5: if (useParallelI2S) delete (static_cast<B_32_I1_2805_5P*>(busPtr)); else delete (static_cast<B_32_I1_2805_5*>(busPtr)); break;
-      case I_32_I1_TM1914_3: if (useParallelI2S) delete (static_cast<B_32_I1_TM1914_3P*>(busPtr)); else delete (static_cast<B_32_I1_TM1914_3*>(busPtr)); break;
-      case I_32_I1_SM16825_5: if (useParallelI2S) delete (static_cast<B_32_I1_SM16825_5P*>(busPtr)); else delete (static_cast<B_32_I1_SM16825_5*>(busPtr)); break;
-      #endif
-      // I2S0 bus
-      #ifndef WLED_NO_I2S0_PIXELBUS
-      case I_32_I0_NEO_3: delete (static_cast<B_32_I0_NEO_3*>(busPtr)); break;
-      case I_32_I0_NEO_4: delete (static_cast<B_32_I0_NEO_4*>(busPtr)); break;
-      case I_32_I0_400_3: delete (static_cast<B_32_I0_400_3*>(busPtr)); break;
-      case I_32_I0_TM1_4: delete (static_cast<B_32_I0_TM1_4*>(busPtr)); break;
-      case I_32_I0_TM2_3: delete (static_cast<B_32_I0_TM2_3*>(busPtr)); break;
-      case I_32_I0_UCS_3: delete (static_cast<B_32_I0_UCS_3*>(busPtr)); break;
-      case I_32_I0_UCS_4: delete (static_cast<B_32_I0_UCS_4*>(busPtr)); break;
-      case I_32_I0_APA106_3: delete (static_cast<B_32_I0_APA106_3*>(busPtr)); break;
-      case I_32_I0_FW6_5: delete (static_cast<B_32_I0_FW6_5*>(busPtr)); break;
-      case I_32_I0_2805_5: delete (static_cast<B_32_I0_2805_5*>(busPtr)); break;
-      case I_32_I0_TM1914_3: delete (static_cast<B_32_I0_TM1914_3*>(busPtr)); break;
-      case I_32_I0_SM16825_5: delete (static_cast<B_32_I0_SM16825_5*>(busPtr)); break;
+      #ifndef CONFIG_IDF_TARGET_ESP32C3
+      case I_32_I2_NEO_3: if (_useParallelI2S) delete (static_cast<B_32_IP_NEO_3*>(busPtr)); else delete (static_cast<B_32_I2_NEO_3*>(busPtr)); break;
+      case I_32_I2_NEO_4: if (_useParallelI2S) delete (static_cast<B_32_IP_NEO_4*>(busPtr)); else delete (static_cast<B_32_I2_NEO_4*>(busPtr)); break;
+      case I_32_I2_400_3: if (_useParallelI2S) delete (static_cast<B_32_IP_400_3*>(busPtr)); else delete (static_cast<B_32_I2_400_3*>(busPtr)); break;
+      case I_32_I2_TM1_4: if (_useParallelI2S) delete (static_cast<B_32_IP_TM1_4*>(busPtr)); else delete (static_cast<B_32_I2_TM1_4*>(busPtr)); break;
+      case I_32_I2_TM2_3: if (_useParallelI2S) delete (static_cast<B_32_IP_TM2_3*>(busPtr)); else delete (static_cast<B_32_I2_TM2_3*>(busPtr)); break;
+      case I_32_I2_UCS_3: if (_useParallelI2S) delete (static_cast<B_32_IP_UCS_3*>(busPtr)); else delete (static_cast<B_32_I2_UCS_3*>(busPtr)); break;
+      case I_32_I2_UCS_4: if (_useParallelI2S) delete (static_cast<B_32_IP_UCS_4*>(busPtr)); else delete (static_cast<B_32_I2_UCS_4*>(busPtr)); break;
+      case I_32_I2_APA106_3: if (_useParallelI2S) delete (static_cast<B_32_IP_APA106_3*>(busPtr)); else delete (static_cast<B_32_I2_APA106_3*>(busPtr)); break;
+      case I_32_I2_FW6_5: if (_useParallelI2S) delete (static_cast<B_32_IP_FW6_5*>(busPtr)); else delete (static_cast<B_32_I2_FW6_5*>(busPtr)); break;
+      case I_32_I2_2805_5: if (_useParallelI2S) delete (static_cast<B_32_IP_2805_5*>(busPtr)); else delete (static_cast<B_32_I2_2805_5*>(busPtr)); break;
+      case I_32_I2_TM1914_3: if (_useParallelI2S) delete (static_cast<B_32_IP_TM1914_3*>(busPtr)); else delete (static_cast<B_32_I2_TM1914_3*>(busPtr)); break;
+      case I_32_I2_SM16825_5: if (_useParallelI2S) delete (static_cast<B_32_IP_SM16825_5*>(busPtr)); else delete (static_cast<B_32_I2_SM16825_5*>(busPtr)); break;
      #endif
    #endif
      case I_HS_DOT_3: delete (static_cast<B_HS_DOT_3*>(busPtr)); break;
@ -1312,8 +1196,178 @@ class PolyBus {
    }
  }

+  static unsigned getDataSize(void* busPtr, uint8_t busType) {
+    unsigned size = 0;
+    switch (busType) {
+      case I_NONE: break;
+    #ifdef ESP8266
+      case I_8266_U0_NEO_3: size = (static_cast<B_8266_U0_NEO_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_NEO_3: size = (static_cast<B_8266_U1_NEO_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_NEO_3: size = (static_cast<B_8266_DM_NEO_3*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_NEO_3: size = (static_cast<B_8266_BB_NEO_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_NEO_4: size = (static_cast<B_8266_U0_NEO_4*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_NEO_4: size = (static_cast<B_8266_U1_NEO_4*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_NEO_4: size = (static_cast<B_8266_DM_NEO_4*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_NEO_4: size = (static_cast<B_8266_BB_NEO_4*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_400_3: size = (static_cast<B_8266_U0_400_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_400_3: size = (static_cast<B_8266_U1_400_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_400_3: size = (static_cast<B_8266_DM_400_3*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_400_3: size = (static_cast<B_8266_BB_400_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_TM1_4: size = (static_cast<B_8266_U0_TM1_4*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_TM1_4: size = (static_cast<B_8266_U1_TM1_4*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_TM1_4: size = (static_cast<B_8266_DM_TM1_4*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_TM1_4: size = (static_cast<B_8266_BB_TM1_4*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_TM2_3: size = (static_cast<B_8266_U0_TM2_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_TM2_3: size = (static_cast<B_8266_U1_TM2_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_TM2_3: size = (static_cast<B_8266_DM_TM2_3*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_TM2_3: size = (static_cast<B_8266_BB_TM2_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_UCS_3: size = (static_cast<B_8266_U0_UCS_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_UCS_3: size = (static_cast<B_8266_U1_UCS_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_UCS_3: size = (static_cast<B_8266_DM_UCS_3*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_UCS_3: size = (static_cast<B_8266_BB_UCS_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_UCS_4: size = (static_cast<B_8266_U0_UCS_4*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_UCS_4: size = (static_cast<B_8266_U1_UCS_4*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_UCS_4: size = (static_cast<B_8266_DM_UCS_4*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_UCS_4: size = (static_cast<B_8266_BB_UCS_4*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_APA106_3: size = (static_cast<B_8266_U0_APA106_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_APA106_3: size = (static_cast<B_8266_U1_APA106_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_APA106_3: size = (static_cast<B_8266_DM_APA106_3*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_APA106_3: size = (static_cast<B_8266_BB_APA106_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_FW6_5: size = (static_cast<B_8266_U0_FW6_5*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_FW6_5: size = (static_cast<B_8266_U1_FW6_5*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_FW6_5: size = (static_cast<B_8266_DM_FW6_5*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_FW6_5: size = (static_cast<B_8266_BB_FW6_5*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_2805_5: size = (static_cast<B_8266_U0_2805_5*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_2805_5: size = (static_cast<B_8266_U1_2805_5*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_2805_5: size = (static_cast<B_8266_DM_2805_5*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_2805_5: size = (static_cast<B_8266_BB_2805_5*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_TM1914_3: size = (static_cast<B_8266_U0_TM1914_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_TM1914_3: size = (static_cast<B_8266_U1_TM1914_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_TM1914_3: size = (static_cast<B_8266_DM_TM1914_3*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_TM1914_3: size = (static_cast<B_8266_BB_TM1914_3*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U0_SM16825_5: size = (static_cast<B_8266_U0_SM16825_5*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_U1_SM16825_5: size = (static_cast<B_8266_U1_SM16825_5*>(busPtr))->PixelsSize()*2; break;
+      case I_8266_DM_SM16825_5: size = (static_cast<B_8266_DM_SM16825_5*>(busPtr))->PixelsSize()*5; break;
+      case I_8266_BB_SM16825_5: size = (static_cast<B_8266_BB_SM16825_5*>(busPtr))->PixelsSize()*2; break;
+    #endif
+    #ifdef ARDUINO_ARCH_ESP32
+      // RMT buses (front + back + small system managed RMT)
+      case I_32_RN_NEO_3: size = (static_cast<B_32_RN_NEO_3*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_NEO_4: size = (static_cast<B_32_RN_NEO_4*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_400_3: size = (static_cast<B_32_RN_400_3*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_TM1_4: size = (static_cast<B_32_RN_TM1_4*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_TM2_3: size = (static_cast<B_32_RN_TM2_3*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_UCS_3: size = (static_cast<B_32_RN_UCS_3*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_UCS_4: size = (static_cast<B_32_RN_UCS_4*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_APA106_3: size = (static_cast<B_32_RN_APA106_3*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_FW6_5: size = (static_cast<B_32_RN_FW6_5*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_2805_5: size = (static_cast<B_32_RN_2805_5*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_TM1914_3: size = (static_cast<B_32_RN_TM1914_3*>(busPtr))->PixelsSize()*2; break;
+      case I_32_RN_SM16825_5: size = (static_cast<B_32_RN_SM16825_5*>(busPtr))->PixelsSize()*2; break;
+      // I2S1 bus or paralell buses (front + DMA; DMA = front * cadence, aligned to 4 bytes)
+      #ifndef CONFIG_IDF_TARGET_ESP32C3
+      case I_32_I2_NEO_3: size = (_useParallelI2S) ? (static_cast<B_32_IP_NEO_3*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_NEO_3*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_NEO_4: size = (_useParallelI2S) ? (static_cast<B_32_IP_NEO_4*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_NEO_4*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_400_3: size = (_useParallelI2S) ? (static_cast<B_32_IP_400_3*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_400_3*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_TM1_4: size = (_useParallelI2S) ? (static_cast<B_32_IP_TM1_4*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_TM1_4*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_TM2_3: size = (_useParallelI2S) ? (static_cast<B_32_IP_TM2_3*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_TM2_3*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_UCS_3: size = (_useParallelI2S) ? (static_cast<B_32_IP_UCS_3*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_UCS_3*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_UCS_4: size = (_useParallelI2S) ? (static_cast<B_32_IP_UCS_4*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_UCS_4*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_APA106_3: size = (_useParallelI2S) ? (static_cast<B_32_IP_APA106_3*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_APA106_3*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_FW6_5: size = (_useParallelI2S) ? (static_cast<B_32_IP_FW6_5*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_FW6_5*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_2805_5: size = (_useParallelI2S) ? (static_cast<B_32_IP_2805_5*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_2805_5*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_TM1914_3: size = (_useParallelI2S) ? (static_cast<B_32_IP_TM1914_3*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_TM1914_3*>(busPtr))->PixelsSize()*4; break;
+      case I_32_I2_SM16825_5: size = (_useParallelI2S) ? (static_cast<B_32_IP_SM16825_5*>(busPtr))->PixelsSize()*4 : (static_cast<B_32_I2_SM16825_5*>(busPtr))->PixelsSize()*4; break;
+      #endif
+    #endif
+      case I_HS_DOT_3: size = (static_cast<B_HS_DOT_3*>(busPtr))->PixelsSize()*2; break;
+      case I_SS_DOT_3: size = (static_cast<B_SS_DOT_3*>(busPtr))->PixelsSize()*2; break;
+      case I_HS_LPD_3: size = (static_cast<B_HS_LPD_3*>(busPtr))->PixelsSize()*2; break;
+      case I_SS_LPD_3: size = (static_cast<B_SS_LPD_3*>(busPtr))->PixelsSize()*2; break;
+      case I_HS_LPO_3: size = (static_cast<B_HS_LPO_3*>(busPtr))->PixelsSize()*2; break;
+      case I_SS_LPO_3: size = (static_cast<B_SS_LPO_3*>(busPtr))->PixelsSize()*2; break;
+      case I_HS_WS1_3: size = (static_cast<B_HS_WS1_3*>(busPtr))->PixelsSize()*2; break;
+      case I_SS_WS1_3: size = (static_cast<B_SS_WS1_3*>(busPtr))->PixelsSize()*2; break;
+      case I_HS_P98_3: size = (static_cast<B_HS_P98_3*>(busPtr))->PixelsSize()*2; break;
+      case I_SS_P98_3: size = (static_cast<B_SS_P98_3*>(busPtr))->PixelsSize()*2; break;
+    }
+    return size;
+  }
+
+  static unsigned memUsage(unsigned count, unsigned busType) {
+    unsigned size = count*3;  // let's assume 3 channels, we will add count or 2*count below for 4 channels or 5 channels
+    switch (busType) {
+      case I_NONE: size = 0; break;
+    #ifdef ESP8266
+      // UART methods have front + back buffers + small UART
+      case I_8266_U0_NEO_4: size = (size + count)*2; break; // 4 channels
+      case I_8266_U1_NEO_4: size = (size + count)*2; break; // 4 channels
+      case I_8266_BB_NEO_4: size = (size + count)*2; break; // 4 channels
+      case I_8266_U0_TM1_4: size = (size + count)*2; break; // 4 channels
+      case I_8266_U1_TM1_4: size = (size + count)*2; break; // 4 channels
+      case I_8266_BB_TM1_4: size = (size + count)*2; break; // 4 channels
+      case I_8266_U0_UCS_3: size *= 4; break; // 16 bit
+      case I_8266_U1_UCS_3: size *= 4; break; // 16 bit
+      case I_8266_BB_UCS_3: size *= 4; break; // 16 bit
+      case I_8266_U0_UCS_4: size = (size + count)*2*2; break; // 16 bit 4 channels
+      case I_8266_U1_UCS_4: size = (size + count)*2*2; break; // 16 bit 4 channels
+      case I_8266_BB_UCS_4: size = (size + count)*2*2; break; // 16 bit 4 channels
+      case I_8266_U0_FW6_5: size = (size + 2*count)*2; break; // 5 channels
+      case I_8266_U1_FW6_5: size = (size + 2*count)*2; break; // 5channels
+      case I_8266_BB_FW6_5: size = (size + 2*count)*2; break; // 5 channels
+      case I_8266_U0_2805_5: size = (size + 2*count)*2; break; // 5 channels
+      case I_8266_U1_2805_5: size = (size + 2*count)*2; break; // 5 channels
+      case I_8266_BB_2805_5: size = (size + 2*count)*2; break; // 5 channels
+      case I_8266_U0_SM16825_5: size = (size + 2*count)*2*2; break; // 16 bit 5 channels
+      case I_8266_U1_SM16825_5: size = (size + 2*count)*2*2; break; // 16 bit 5 channels
+      case I_8266_BB_SM16825_5: size = (size + 2*count)*2*2; break; // 16 bit 5 channels
+      // DMA methods have front + DMA buffer = ((1+(3+1)) * channels)
+      case I_8266_DM_NEO_3: size *= 5; break;
+      case I_8266_DM_NEO_4: size = (size + count)*5; break;
+      case I_8266_DM_400_3: size *= 5; break;
+      case I_8266_DM_TM1_4: size = (size + count)*5; break;
+      case I_8266_DM_TM2_3: size *= 5; break;
+      case I_8266_DM_UCS_3: size *= 2*5; break;
+      case I_8266_DM_UCS_4: size = (size + count)*2*5; break;
+      case I_8266_DM_APA106_3: size *= 5; break;
+      case I_8266_DM_FW6_5: size = (size + 2*count)*5; break;
+      case I_8266_DM_2805_5: size = (size + 2*count)*5; break;
+      case I_8266_DM_TM1914_3: size *= 5; break;
+      case I_8266_DM_SM16825_5: size = (size + 2*count)*2*5; break;
+    #endif
+    #ifdef ARDUINO_ARCH_ESP32
+      // RMT buses (1x front and 1x back buffer)
+      case I_32_RN_NEO_4: size = (size + count)*2; break;
+      case I_32_RN_TM1_4: size = (size + count)*2; break;
+      case I_32_RN_UCS_3: size *= 2*2; break;
+      case I_32_RN_UCS_4: size = (size + count)*2*2; break;
+      case I_32_RN_FW6_5: size = (size + 2*count)*2; break;
+      case I_32_RN_2805_5: size = (size + 2*count)*2; break;
+      case I_32_RN_SM16825_5: size = (size + 2*count)*2*2; break;
+      // I2S1 bus or paralell buses (individual 1x front and 1 DMA (3x or 4x pixel count) or common back DMA buffers)
+      #ifndef CONFIG_IDF_TARGET_ESP32C3
+      case I_32_I2_NEO_3: size *= 4; break;
+      case I_32_I2_NEO_4: size = (size + count)*4; break;
+      case I_32_I2_400_3: size *= 4; break;
+      case I_32_I2_TM1_4: size = (size + count)*4; break;
+      case I_32_I2_TM2_3: size *= 4; break;
+      case I_32_I2_UCS_3: size *= 2*4; break;
+      case I_32_I2_UCS_4: size = (size + count)*2*4; break;
+      case I_32_I2_APA106_3: size *= 4; break;
+      case I_32_I2_FW6_5: size = (size + 2*count)*4; break;
+      case I_32_I2_2805_5: size = (size + 2*count)*4; break;
+      case I_32_I2_TM1914_3: size *= 4; break;
+      case I_32_I2_SM16825_5: size = (size + 2*count)*2*4; break;
+      #endif
+    #endif
+      // everything else uses 2 buffers
+      default:         size *= 2; break;
+    }
+    return size;
+  }
+
  //gives back the internal type index (I_XX_XXX_X above) for the input
-  static uint8_t getI(uint8_t busType, uint8_t* pins, uint8_t num = 0) {
+  static uint8_t getI(uint8_t busType, const uint8_t* pins, uint8_t num = 0) {
    if (!Bus::isDigital(busType)) return I_NONE;
    if (Bus::is2Pin(busType)) { //SPI LED chips
      bool isHSPI = false;
@ -1372,26 +1426,33 @@ class PolyBus {
      uint8_t offset = 0; // 0 = RMT (num 1-8), 1 = I2S0 (used by Audioreactive), 2 = I2S1
      #if defined(CONFIG_IDF_TARGET_ESP32S2)
      // ESP32-S2 only has 4 RMT channels
-      if (num > 4) return I_NONE;
-      if (num > 3) offset = 1;  // only one I2S (use last to allow Audioreactive)
+      if (_useParallelI2S) {
+        if (num > 11) return I_NONE;
+        if (num > 3) offset = 1;    // use x8 parallel I2S0 channels (use last to allow Audioreactive)
+      } else {
+        if (num > 4) return I_NONE;
+        if (num > 3) offset = 1;  // only one I2S0 (use last to allow Audioreactive)
+      }
      #elif defined(CONFIG_IDF_TARGET_ESP32C3)
      // On ESP32-C3 only the first 2 RMT channels are usable for transmitting
      if (num > 1) return I_NONE;
      //if (num > 1) offset = 1; // I2S not supported yet (only 1 I2S)
      #elif defined(CONFIG_IDF_TARGET_ESP32S3)
      // On ESP32-S3 only the first 4 RMT channels are usable for transmitting
-      if (num > 3) return I_NONE;
-      //if (num > 3) offset = num -4; // I2S not supported yet
+      if (_useParallelI2S) {
+        if (num > 11) return I_NONE;
+        if (num > 3) offset = 1;    // use x8 parallel I2S LCD channels
+      } else {
+        if (num > 3) return I_NONE; // do not use single I2S (as it is not supported)
+      }
      #else
-      // standard ESP32 has 8 RMT and 2 I2S channels
-      if (useParallelI2S) {
-        if (num > 16) return I_NONE;
-        if (num < 8) offset = 2;  // prefer 8 parallel I2S1 channels
-        if (num == 16) offset = 1;
+      // standard ESP32 has 8 RMT and x1/x8 I2S1 channels
+      if (_useParallelI2S) {
+        if (num > 15) return I_NONE;
+        if (num > 7) offset = 1;  // 8 RMT followed by 8 I2S
      } else {
        if (num > 9) return I_NONE;
-        if (num > 8) offset = 1;
-        if (num == 0) offset = 2; // prefer I2S1 for 1st bus (less flickering but more RAM needed)
+        if (num == 0) offset = 1; // prefer I2S1 for 1st bus (less flickering but more RAM needed)
      }
      #endif
      switch (busType) {
--- a/wled00/button.cpp
+++ b/wled00/button.cpp
@ -375,6 +375,7 @@ void handleIO()
      if (rlyPin>=0) {
        pinMode(rlyPin, rlyOpenDrain ? OUTPUT_OPEN_DRAIN : OUTPUT);
        digitalWrite(rlyPin, rlyMde);
+        delay(50); // wait for relay to switch and power to stabilize
      }
      offMode = false;
    }
--- a/wled00/cfg.cpp
+++ b/wled00/cfg.cpp
@ -118,6 +118,9 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
  Bus::setCCTBlend(strip.cctBlending);
  strip.setTargetFps(hw_led["fps"]); //NOP if 0, default 42 FPS
  CJSON(useGlobalLedBuffer, hw_led[F("ld")]);
+  #if defined(ARDUINO_ARCH_ESP32) && !defined(CONFIG_IDF_TARGET_ESP32C3)
+  CJSON(useParallelI2S, hw_led[F("prl")]);
+  #endif

  #ifndef WLED_DISABLE_2D
  // 2D Matrix Settings
@ -162,34 +165,6 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
    DEBUG_PRINTF_P(PSTR("Heap before buses: %d\n"), ESP.getFreeHeap());
    int s = 0;  // bus iterator
    if (fromFS) BusManager::removeAll(); // can't safely manipulate busses directly in network callback
-    unsigned mem = 0;
-
-    // determine if it is sensible to use parallel I2S outputs on ESP32 (i.e. more than 5 outputs = 1 I2S + 4 RMT)
-    bool useParallel = false;
-    #if defined(ARDUINO_ARCH_ESP32) && !defined(ARDUINO_ARCH_ESP32S2) && !defined(ARDUINO_ARCH_ESP32S3) && !defined(ARDUINO_ARCH_ESP32C3)
-    unsigned digitalCount = 0;
-    unsigned maxLedsOnBus = 0;
-    unsigned maxChannels = 0;
-    for (JsonObject elm : ins) {
-      unsigned type = elm["type"] | TYPE_WS2812_RGB;
-      unsigned len = elm["len"] | DEFAULT_LED_COUNT;
-      if (!Bus::isDigital(type)) continue;
-      if (!Bus::is2Pin(type)) {
-        digitalCount++;
-        unsigned channels = Bus::getNumberOfChannels(type);
-        if (len > maxLedsOnBus)     maxLedsOnBus = len;
-        if (channels > maxChannels) maxChannels  = channels;
-      }
-    }
-    DEBUG_PRINTF_P(PSTR("Maximum LEDs on a bus: %u\nDigital buses: %u\n"), maxLedsOnBus, digitalCount);
-    // we may remove 300 LEDs per bus limit when NeoPixelBus is updated beyond 2.9.0
-    if (maxLedsOnBus <= 300 && digitalCount > 5) {
-      DEBUG_PRINTLN(F("Switching to parallel I2S."));
-      useParallel = true;
-      BusManager::useParallelOutput();
-      mem = BusManager::memUsage(maxChannels, maxLedsOnBus, 8); // use alternate memory calculation
-    }
-    #endif

    for (JsonObject elm : ins) {
      if (s >= WLED_MAX_BUSSES+WLED_MIN_VIRTUAL_BUSSES) break;
@ -220,24 +195,11 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
        maMax = 0;
      }
      ledType |= refresh << 7; // hack bit 7 to indicate strip requires off refresh
-      if (fromFS) {
-        BusConfig bc = BusConfig(ledType, pins, start, length, colorOrder, reversed, skipFirst, AWmode, freqkHz, useGlobalLedBuffer, maPerLed, maMax);
-        if (useParallel && s < 8) {
-          // if for some unexplained reason the above pre-calculation was wrong, update
-          unsigned memT = BusManager::memUsage(bc); // includes x8 memory allocation for parallel I2S
-          if (memT > mem) mem = memT; // if we have unequal LED count use the largest
-        } else
-          mem += BusManager::memUsage(bc); // includes global buffer
-        if (mem <= MAX_LED_MEMORY) if (BusManager::add(bc) == -1) break;  // finalization will be done in WLED::beginStrip()
-      } else {
-        if (busConfigs[s] != nullptr) delete busConfigs[s];
-        busConfigs[s] = new BusConfig(ledType, pins, start, length, colorOrder, reversed, skipFirst, AWmode, freqkHz, useGlobalLedBuffer, maPerLed, maMax);
-        doInitBusses = true;  // finalization done in beginStrip()
-      }
+
+      busConfigs.push_back(std::move(BusConfig(ledType, pins, start, length, colorOrder, reversed, skipFirst, AWmode, freqkHz, useGlobalLedBuffer, maPerLed, maMax)));
+      doInitBusses = true;  // finalization done in beginStrip()
      s++;
    }
-    DEBUG_PRINTF_P(PSTR("LED buffer size: %uB\n"), mem);
-    DEBUG_PRINTF_P(PSTR("Heap after buses: %d\n"), ESP.getFreeHeap());
  }
  if (hw_led["rev"]) BusManager::getBus(0)->setReversed(true); //set 0.11 global reversed setting for first bus

@ -824,6 +786,9 @@ void serializeConfig() {
  hw_led["fps"] = strip.getTargetFps();
  hw_led[F("rgbwm")] = Bus::getGlobalAWMode(); // global auto white mode override
  hw_led[F("ld")] = useGlobalLedBuffer;
+  #if defined(ARDUINO_ARCH_ESP32) && !defined(CONFIG_IDF_TARGET_ESP32C3)
+  hw_led[F("prl")] = BusManager::hasParallelOutput();
+  #endif

  #ifndef WLED_DISABLE_2D
  // 2D Matrix Settings
@ -848,8 +813,19 @@ void serializeConfig() {
  JsonArray hw_led_ins = hw_led.createNestedArray("ins");

  for (size_t s = 0; s < BusManager::getNumBusses(); s++) {
+    DEBUG_PRINTF_P(PSTR("Cfg: Saving bus #%u\n"), s);
    Bus *bus = BusManager::getBus(s);
    if (!bus || bus->getLength()==0) break;
+    DEBUG_PRINTF_P(PSTR("  (%d-%d, type:%d, CO:%d, rev:%d, skip:%d, AW:%d kHz:%d, mA:%d/%d)\n"),
+      (int)bus->getStart(), (int)(bus->getStart()+bus->getLength()),
+      (int)(bus->getType() & 0x7F),
+      (int)bus->getColorOrder(),
+      (int)bus->isReversed(),
+      (int)bus->skippedLeds(),
+      (int)bus->getAutoWhiteMode(),
+      (int)bus->getFrequency(),
+      (int)bus->getLEDCurrent(), (int)bus->getMaxCurrent()
+    );
    JsonObject ins = hw_led_ins.createNestedObject();
    ins["start"] = bus->getStart();
    ins["len"] = bus->getLength();
--- a/wled00/const.h
+++ b/wled00/const.h
@ -37,7 +37,7 @@
 #endif

 #ifndef WLED_MAX_USERMODS
-  #ifdef ESP8266
+  #if defined(ESP8266) || defined(CONFIG_IDF_TARGET_ESP32S2)
    #define WLED_MAX_USERMODS 4
  #else
    #define WLED_MAX_USERMODS 6
@ -49,31 +49,31 @@
    #define WLED_MAX_DIGITAL_CHANNELS 3
    #define WLED_MAX_ANALOG_CHANNELS 5
    #define WLED_MAX_BUSSES 4                 // will allow 3 digital & 1 analog RGB
-    #define WLED_MIN_VIRTUAL_BUSSES 2
+    #define WLED_MIN_VIRTUAL_BUSSES 3
  #else
    #define WLED_MAX_ANALOG_CHANNELS (LEDC_CHANNEL_MAX*LEDC_SPEED_MODE_MAX)
    #if defined(CONFIG_IDF_TARGET_ESP32C3)    // 2 RMT, 6 LEDC, only has 1 I2S but NPB does not support it ATM
      #define WLED_MAX_BUSSES 6               // will allow 2 digital & 2 analog RGB or 6 PWM white
      #define WLED_MAX_DIGITAL_CHANNELS 2
      //#define WLED_MAX_ANALOG_CHANNELS 6
-      #define WLED_MIN_VIRTUAL_BUSSES 3
+      #define WLED_MIN_VIRTUAL_BUSSES 4
    #elif defined(CONFIG_IDF_TARGET_ESP32S2)  // 4 RMT, 8 LEDC, only has 1 I2S bus, supported in NPB
      // the 5th bus (I2S) will prevent Audioreactive usermod from functioning (it is last used though)
-      #define WLED_MAX_BUSSES 7               // will allow 5 digital & 2 analog RGB
-      #define WLED_MAX_DIGITAL_CHANNELS 5
-      //#define WLED_MAX_ANALOG_CHANNELS 8
-      #define WLED_MIN_VIRTUAL_BUSSES 3
-    #elif defined(CONFIG_IDF_TARGET_ESP32S3)  // 4 RMT, 8 LEDC, has 2 I2S but NPB does not support them ATM
-      #define WLED_MAX_BUSSES 6               // will allow 4 digital & 2 analog RGB
-      #define WLED_MAX_DIGITAL_CHANNELS 4
+      #define WLED_MAX_BUSSES 14              // will allow 12 digital & 2 analog RGB
+      #define WLED_MAX_DIGITAL_CHANNELS 12    // x4 RMT + x1/x8 I2S0
      //#define WLED_MAX_ANALOG_CHANNELS 8
      #define WLED_MIN_VIRTUAL_BUSSES 4
+    #elif defined(CONFIG_IDF_TARGET_ESP32S3)  // 4 RMT, 8 LEDC, has 2 I2S but NPB supports parallel x8 LCD on I2S1
+      #define WLED_MAX_BUSSES 14              // will allow 12 digital & 2 analog RGB
+      #define WLED_MAX_DIGITAL_CHANNELS 12    // x4 RMT + x8 I2S-LCD
+      //#define WLED_MAX_ANALOG_CHANNELS 8
+      #define WLED_MIN_VIRTUAL_BUSSES 6
    #else
      // the last digital bus (I2S0) will prevent Audioreactive usermod from functioning
-      #define WLED_MAX_BUSSES 20              // will allow 17 digital & 3 analog RGB
-      #define WLED_MAX_DIGITAL_CHANNELS 17
+      #define WLED_MAX_BUSSES 19              // will allow 16 digital & 3 analog RGB
+      #define WLED_MAX_DIGITAL_CHANNELS 16    // x1/x8 I2S1 + x8 RMT
      //#define WLED_MAX_ANALOG_CHANNELS 16
-      #define WLED_MIN_VIRTUAL_BUSSES 4
+      #define WLED_MIN_VIRTUAL_BUSSES 6
    #endif
  #endif
 #else
@ -115,7 +115,7 @@
  #endif
 #endif

-#ifdef ESP8266
+#if defined(ESP8266) || defined(CONFIG_IDF_TARGET_ESP32S2)
 #define WLED_MAX_COLOR_ORDER_MAPPINGS 5
 #else
 #define WLED_MAX_COLOR_ORDER_MAPPINGS 10
@ -125,7 +125,7 @@
  #undef WLED_MAX_LEDMAPS
 #endif
 #ifndef WLED_MAX_LEDMAPS
-  #ifdef ESP8266
+  #if defined(ESP8266) || defined(CONFIG_IDF_TARGET_ESP32S2)
    #define WLED_MAX_LEDMAPS 10
  #else
    #define WLED_MAX_LEDMAPS 16
@ -473,6 +473,8 @@
 #ifndef MAX_LEDS
 #ifdef ESP8266
 #define MAX_LEDS 1664 //can't rely on memory limit to limit this to 1600 LEDs
+#elif defined(CONFIG_IDF_TARGET_ESP32S2)
+#define MAX_LEDS 2048 //due to memory constraints
 #else
 #define MAX_LEDS 8192
 #endif
@ -482,7 +484,9 @@
  #ifdef ESP8266
    #define MAX_LED_MEMORY 4000
  #else
-    #if defined(ARDUINO_ARCH_ESP32S2) || defined(ARDUINO_ARCH_ESP32C3)
+    #if defined(ARDUINO_ARCH_ESP32S2)
+      #define MAX_LED_MEMORY 16000
+    #elif defined(ARDUINO_ARCH_ESP32C3)
      #define MAX_LED_MEMORY 32000
    #else
      #define MAX_LED_MEMORY 64000
--- a/wled00/data/common.js
+++ b/wled00/data/common.js
@ -16,7 +16,7 @@ function isI(n)     { return n === +n && n === (n|0); } // isInteger
 function toggle(el) { gId(el).classList.toggle("hide"); gId('No'+el).classList.toggle("hide"); }
 function tooltip(cont=null) {
 	d.querySelectorAll((cont?cont+" ":"")+"[title]").forEach((element)=>{
-		element.addEventListener("mouseover", ()=>{
+		element.addEventListener("pointerover", ()=>{
 			// save title
 			element.setAttribute("data-title", element.getAttribute("title"));
 			const tooltip = d.createElement("span");
@ -41,7 +41,7 @@ function tooltip(cont=null) {
 			tooltip.classList.add("visible");
 		});

-		element.addEventListener("mouseout", ()=>{
+		element.addEventListener("pointerout", ()=>{
 			d.querySelectorAll('.tooltip').forEach((tooltip)=>{
 				tooltip.classList.remove("visible");
 				d.body.removeChild(tooltip);
--- a/wled00/data/index.js
+++ b/wled00/data/index.js
@ -3114,10 +3114,9 @@ function mergeDeep(target, ...sources)
 	return mergeDeep(target, ...sources);
 }

-function tooltip(cont=null)
-{
+function tooltip(cont=null) {
 	d.querySelectorAll((cont?cont+" ":"")+"[title]").forEach((element)=>{
-		element.addEventListener("mouseover", ()=>{
+		element.addEventListener("pointerover", ()=>{
 			// save title
 			element.setAttribute("data-title", element.getAttribute("title"));
 			const tooltip = d.createElement("span");
@ -3142,7 +3141,7 @@ function tooltip(cont=null)
 			tooltip.classList.add("visible");
 		});

-		element.addEventListener("mouseout", ()=>{
+		element.addEventListener("pointerout", ()=>{
 			d.querySelectorAll('.tooltip').forEach((tooltip)=>{
 				tooltip.classList.remove("visible");
 				d.body.removeChild(tooltip);
--- a/wled00/data/settings_leds.htm
+++ b/wled00/data/settings_leds.htm
@ -42,10 +42,10 @@
 			if (loc) d.Sf.action = getURL('/settings/leds');
 		}
 		function bLimits(b,v,p,m,l,o=5,d=2,a=6) {
-			oMaxB = maxB = b; // maxB - max buses (can be changed if using ESP32 parallel I2S)
-			maxD  = d; // maxD - max digital channels (can be changed if using ESP32 parallel I2S)
-			maxA  = a; // maxA - max analog channels
-			maxV  = v; // maxV - min virtual buses
+			oMaxB = maxB = b; // maxB - max buses (can be changed if using ESP32 parallel I2S): 19 - ESP32, 14 - S3/S2, 6 - C3, 4 - 8266
+			maxD  = d; // maxD - max digital channels (can be changed if using ESP32 parallel I2S): 16 - ESP32, 12 - S3/S2, 2 - C3, 3 - 8266
+			maxA  = a; // maxA - max analog channels: 16 - ESP32, 8 - S3/S2, 6 - C3, 5 - 8266
+			maxV  = v; // maxV - min virtual buses: 4 - ESP32/S3, 3 - S2/C3, 2 - ESP8266
 			maxPB = p; // maxPB - max LEDs per bus
 			maxM  = m; // maxM - max LED memory
 			maxL  = l; // maxL - max LEDs (will serve to determine ESP >1664 == ESP32)
@ -250,6 +250,7 @@
 			}

 			// enable/disable LED fields
+			let dC = 0; // count of digital buses (for parallel I2S)
 			let LTs = d.Sf.querySelectorAll("#mLC select[name^=LT]");
 			LTs.forEach((s,i)=>{
 				if (i < LTs.length-1) s.disabled = true; // prevent changing type (as we can't update options)
@ -257,6 +258,7 @@
 				var n = s.name.substring(2);
 				var t = parseInt(s.value);
 				memu += getMem(t, n); // calc memory
+				dC += (isDig(t) && !isD2P(t));
 				setPinConfig(n,t);
 				gId("abl"+n).style.display = (!abl || !isDig(t)) ? "none" : "inline"; // show/hide individual ABL settings
 				if (change) { // did we change LED type?
@ -295,8 +297,7 @@
 				// do we have a led count field
 				if (nm=="LC") {
 					let c = parseInt(LC.value,10); //get LED count
-					if (c > 300 && i < 8) maxB = oMaxB - Math.max(maxD-7,0); //TODO: hard limit for buses when using ESP32 parallel I2S
-					if (!customStarts || !startsDirty[n]) gId("ls"+n).value=sLC; //update start value
+					if (!customStarts || !startsDirty[n]) gId("ls"+n).value = sLC; //update start value
 					gId("ls"+n).disabled = !customStarts; //enable/disable field editing
 					if (c) {
 						let s = parseInt(gId("ls"+n).value); //start value
@ -350,6 +351,17 @@
 						else LC.style.color = d.ro_gpio.some((e)=>e==parseInt(LC.value)) ? "orange" : "#fff";
 					}
 			});
+			const S2 = (oMaxB == 14) && (maxV == 4);
+			const S3 = (oMaxB == 14) && (maxV == 6);
+			if (oMaxB == 19 || S2 || S3) { // TODO: crude ESP32 & S2/S3 detection
+				if (maxLC > 300 || dC <= 2) {
+					d.Sf["PR"].checked = false;
+					gId("prl").classList.add("hide");
+				} else
+					gId("prl").classList.remove("hide");
+				maxD = (S2 || S3 ? 4 : 8) + (d.Sf["PR"].checked ? 8 : S2); // TODO: use bLimits() : 4/8RMT + (x1/x8 parallel) I2S1
+				maxB = oMaxB - (d.Sf["PR"].checked ? 0 : 7 + S3); // S2 (maxV==3) does support single I2S
+			}
 			// distribute ABL current if not using PPL
 			enPPL(sDI);

@ -379,6 +391,11 @@
 			gId('psu').innerHTML = s;
 			gId('psu2').innerHTML = s2;
 			gId("json").style.display = d.Sf.IT.value==8 ? "" : "none";
+
+			// show/hide FPS warning messages
+			gId('fpsNone').style.display = (d.Sf.FR.value == 0) ? 'block':'none';
+			gId('fpsWarn').style.display = (d.Sf.FR.value == 0) || (d.Sf.FR.value >= 80) ? 'block':'none';
+			gId('fpsHigh').style.display = (d.Sf.FR.value >= 80) ? 'block':'none';
 		}
 		function lastEnd(i) {
 			if (i-- < 1) return 0;
@ -465,6 +482,7 @@ mA/LED: <select name="LAsel${s}" onchange="enLA(this,'${s}');UI();">
 						}
 					}
 				});
+				enLA(d.Sf["LAsel"+s],s); // update LED mA
 				// disable inappropriate LED types
 				let sel = d.getElementsByName("LT"+s)[0]
 				if (i >= maxB || digitalB >= maxD) disable(sel,'option[data-type="D"]'); // NOTE: see isDig()
@ -782,6 +800,7 @@ Swap: <select id="xw${s}" name="XW${s}">
 			Use less than <span id="wreason">800 LEDs per output</span> for the best experience!<br>
 		</div>
 		<hr class="sml">
+		<div id="prl" class="hide">Use parallel I2S: <input type="checkbox" name="PR"><br></div>
 		Make a segment for each output: <input type="checkbox" name="MS"><br>
 		Custom bus start indices: <input type="checkbox" onchange="tglSi(this.checked)" id="si"><br>
 		Use global LED buffer: <input type="checkbox" name="LD" onchange="UI()"><br>
@ -869,7 +888,10 @@ Swap: <select id="xw${s}" name="XW${s}">
 			<option value="2">Linear (never wrap)</option>
 			<option value="3">None (not recommended)</option>
 		</select><br>
-		Target refresh rate: <input type="number" class="s" min="1" max="120" name="FR" required> FPS
+		Target refresh rate: <input type="number" class="s" min="0" max="250" name="FR" oninput="UI()" required> FPS
+		<div id="fpsNone" class="warn" style="display: none;">&#9888; Unlimited FPS Mode  is experimental &#9888;<br></div>
+		<div id="fpsHigh" class="warn" style="display: none;">&#9888; High FPS Mode is experimental.<br></div>
+		<div id="fpsWarn" class="warn" style="display: none;">Please <a class="lnk" href="sec#backup">backup</a> WLED configuration and presets first!<br></div>
 		<hr class="sml">
 		<div id="cfg">Config template: <input type="file" name="data2" accept=".json"><button type="button" class="sml" onclick="loadCfg(d.Sf.data2)">Apply</button><br></div>
 		<hr>
--- a/wled00/data/settings_sec.htm
+++ b/wled00/data/settings_sec.htm
@ -57,7 +57,7 @@
 		<h3>Software Update</h3>
 		<button type="button" onclick="U()">Manual OTA Update</button><br>
 		Enable ArduinoOTA: <input type="checkbox" name="AO">
-		<hr>
+		<hr id="backup">
 		<h3>Backup & Restore</h3>
 		<div class="warn">&#9888; Restoring presets/configuration will OVERWRITE your current presets/configuration.<br>
 		Incorrect upload or configuration may require a factory reset or re-flashing of your ESP.<br>
--- a/wled00/fcn_declare.h
+++ b/wled00/fcn_declare.h
@ -1,3 +1,4 @@
+#pragma once
 #ifndef WLED_FCN_DECLARE_H
 #define WLED_FCN_DECLARE_H

@ -230,7 +231,8 @@ void deletePreset(byte index);
 bool getPresetName(byte index, String& name);

 //remote.cpp
-void handleRemote(uint8_t *data, size_t len);
+void handleWiZdata(uint8_t *incomingData, size_t len);
+void handleRemote();

 //set.cpp
 bool isAsterisksOnly(const char* str, byte maxLen);
@ -372,7 +374,7 @@ void userLoop();
 //util.cpp
 int getNumVal(const String* req, uint16_t pos);
 void parseNumber(const char* str, byte* val, byte minv=0, byte maxv=255);
-bool getVal(JsonVariant elem, byte* val, byte minv=0, byte maxv=255);
+bool getVal(JsonVariant elem, byte* val, byte minv=0, byte maxv=255); // getVal supports inc/decrementing and random ("X~Y(r|~[w][-][Z])" form)
 bool getBoolVal(JsonVariant elem, bool dflt);
 bool updateVal(const char* req, const char* key, byte* val, byte minv=0, byte maxv=255);
 size_t printSetFormCheckbox(Print& settingsScript, const char* key, int val);
--- a/wled00/json.cpp
+++ b/wled00/json.cpp
@ -117,7 +117,7 @@ bool deserializeSegment(JsonObject elem, byte it, byte presetId)
  if (stop > start && of > len -1) of = len -1;

  // update segment (delete if necessary)
-  seg.setUp(start, stop, grp, spc, of, startY, stopY); // strip needs to be suspended for this to work without issues
+  seg.setGeometry(start, stop, grp, spc, of, startY, stopY); // strip needs to be suspended for this to work without issues

  if (newSeg) seg.refreshLightCapabilities(); // fix for #3403

@ -223,30 +223,17 @@ bool deserializeSegment(JsonObject elem, byte it, byte presetId)
  #endif

  byte fx = seg.mode;
-  byte last = strip.getModeCount();
-  // partial fix for #3605
-  if (!elem["fx"].isNull() && elem["fx"].is<const char*>()) {
-    const char *tmp = elem["fx"].as<const char *>();
-    if (strlen(tmp) > 3 && (strchr(tmp,'r') || strchr(tmp,'~') != strrchr(tmp,'~'))) last = 0; // we have "X~Y(r|[w]~[-])" form
-  }
-  // end fix
-  if (getVal(elem["fx"], &fx, 0, last)) { //load effect ('r' random, '~' inc/dec, 0-255 exact value, 5~10r pick random between 5 & 10)
+  if (getVal(elem["fx"], &fx, 0, strip.getModeCount())) {
    if (!presetId && currentPlaylist>=0) unloadPlaylist();
    if (fx != seg.mode) seg.setMode(fx, elem[F("fxdef")]);
  }

-  //getVal also supports inc/decrementing and random
  getVal(elem["sx"], &seg.speed);
  getVal(elem["ix"], &seg.intensity);

  uint8_t pal = seg.palette;
-  last = strip.getPaletteCount();
-  if (!elem["pal"].isNull() && elem["pal"].is<const char*>()) {
-    const char *tmp = elem["pal"].as<const char *>();
-    if (strlen(tmp) > 3 && (strchr(tmp,'r') || strchr(tmp,'~') != strrchr(tmp,'~'))) last = 0; // we have "X~Y(r|[w]~[-])" form
-  }
  if (seg.getLightCapabilities() & 1) {  // ignore palette for White and On/Off segments
-    if (getVal(elem["pal"], &pal, 0, last)) seg.setPalette(pal);
+    if (getVal(elem["pal"], &pal, 0, strip.getPaletteCount())) seg.setPalette(pal);
  }

  getVal(elem["c1"], &seg.custom1);
@ -467,7 +454,7 @@ bool deserializeState(JsonObject root, byte callMode, byte presetId)
    DEBUG_PRINTF_P(PSTR("Preset direct: %d\n"), currentPreset);
  } else if (!root["ps"].isNull()) {
    // we have "ps" call (i.e. from button or external API call) or "pd" that includes "ps" (i.e. from UI call)
-    if (root["win"].isNull() && getVal(root["ps"], &presetCycCurr, 0, 0) && presetCycCurr > 0 && presetCycCurr < 251 && presetCycCurr != currentPreset) {
+    if (root["win"].isNull() && getVal(root["ps"], &presetCycCurr, 1, 250) && presetCycCurr > 0 && presetCycCurr < 251 && presetCycCurr != currentPreset) {
      DEBUG_PRINTF_P(PSTR("Preset select: %d\n"), presetCycCurr);
      // b) preset ID only or preset that does not change state (use embedded cycling limits if they exist in getVal())
      applyPreset(presetCycCurr, callMode); // async load from file system (only preset ID was specified)
--- a/wled00/led.cpp
+++ b/wled00/led.cpp
@ -73,8 +73,8 @@ byte scaledBri(byte in)

 //applies global brightness
 void applyBri() {
-  if (!realtimeMode || !arlsForceMaxBri)
-  {
+  if (!(realtimeMode && arlsForceMaxBri)) {
+    //DEBUG_PRINTF_P(PSTR("Applying strip brightness: %d (%d,%d)\n"), (int)briT, (int)bri, (int)briOld);
    strip.setBrightness(scaledBri(briT));
  }
 }
@ -85,6 +85,7 @@ void applyFinalBri() {
  briOld = bri;
  briT = bri;
  applyBri();
+  strip.trigger();
 }


@ -146,7 +147,6 @@ void stateUpdated(byte callMode) {
    transitionStartTime = millis();
  } else {
    applyFinalBri();
-    strip.trigger();
  }
 }

--- a/wled00/network.cpp
+++ b/wled00/network.cpp
@ -207,6 +207,7 @@ void WiFiEvent(WiFiEvent_t event)
      break;
 #endif
    default:
+      DEBUG_PRINTF_P(PSTR("Network event: %d\n"), (int)event);
      break;
  }
 }
--- a/wled00/pin_manager.cpp
+++ b/wled00/pin_manager.cpp
@ -214,8 +214,20 @@ bool PinManager::isPinOk(byte gpio, bool output)
    // JTAG: GPIO39-42 are usually used for inline debugging
    // GPIO46 is input only and pulled down
  #else
-    if (gpio > 5 && gpio < 12) return false;      //SPI flash pins
-    if (strncmp_P(PSTR("ESP32-PICO"), ESP.getChipModel(), 10) == 0 && (gpio == 16 || gpio == 17)) return false; // PICO-D4: gpio16+17 are in use for onboard SPI FLASH
+
+    if ((strncmp_P(PSTR("ESP32-U4WDH"), ESP.getChipModel(), 11) == 0) ||    // this is the correct identifier, but....
+        (strncmp_P(PSTR("ESP32-PICO-D2"), ESP.getChipModel(), 13) == 0)) {  // https://github.com/espressif/arduino-esp32/issues/10683
+      // this chip has 4 MB of internal Flash and different packaging, so available pins are different!
+      if (((gpio > 5) && (gpio < 9)) || (gpio == 11))
+        return false;
+    } else {
+      // for classic ESP32 (non-mini) modules, these are the SPI flash pins
+      if (gpio > 5 && gpio < 12) return false;      //SPI flash pins
+    }
+
+    if (((strncmp_P(PSTR("ESP32-PICO"), ESP.getChipModel(), 10) == 0) ||
+         (strncmp_P(PSTR("ESP32-U4WDH"), ESP.getChipModel(), 11) == 0))
+        && (gpio == 16 || gpio == 17)) return false; // PICO-D4/U4WDH: gpio16+17 are in use for onboard SPI FLASH
    if (gpio == 16 || gpio == 17) return !psramFound(); //PSRAM pins on ESP32 (these are IO)
  #endif
    if (output) return digitalPinCanOutput(gpio);
--- a/wled00/presets.cpp
+++ b/wled00/presets.cpp
@ -164,6 +164,11 @@ void handlePresets()

  DEBUG_PRINTF_P(PSTR("Applying preset: %u\n"), (unsigned)tmpPreset);

+  #if defined(ARDUINO_ARCH_ESP32S3) || defined(ARDUINO_ARCH_ESP32S2) || defined(ARDUINO_ARCH_ESP32C3)
+  unsigned long start = millis();
+  while (strip.isUpdating() && millis() - start < FRAMETIME_FIXED) yield(); // wait for strip to finish updating, accessing FS during sendout causes glitches
+  #endif
+
  #ifdef ARDUINO_ARCH_ESP32
  if (tmpPreset==255 && tmpRAMbuffer!=nullptr) {
    deserializeJson(*pDoc,tmpRAMbuffer);
--- a/wled00/remote.cpp
+++ b/wled00/remote.cpp
@ -1,6 +1,8 @@
 #include "wled.h"
 #ifndef WLED_DISABLE_ESPNOW

+#define ESPNOW_BUSWAIT_TIMEOUT 24 // one frame timeout to wait for bus to finish updating
+
 #define NIGHT_MODE_DEACTIVATED     -1
 #define NIGHT_MODE_BRIGHTNESS      5

@ -38,6 +40,7 @@ typedef struct WizMoteMessageStructure {

 static uint32_t last_seq = UINT32_MAX;
 static int brightnessBeforeNightMode = NIGHT_MODE_DEACTIVATED;
+static int16_t ESPNowButton = -1; // set in callback if new button value is received

 // Pulled from the IR Remote logic but reduced to 10 steps with a constant of 3
 static const byte brightnessSteps[] = {
@ -121,6 +124,9 @@ static bool remoteJson(int button)

  sprintf_P(objKey, PSTR("\"%d\":"), button);

+  unsigned long start = millis();
+  while (strip.isUpdating() && millis()-start < ESPNOW_BUSWAIT_TIMEOUT) yield(); // wait for strip to finish updating, accessing FS during sendout causes glitches
+
  // attempt to read command from remote.json
  readObjectFromFile(PSTR("/remote.json"), objKey, pDoc);
  JsonObject fdo = pDoc->as<JsonObject>();
@ -176,7 +182,7 @@ static bool remoteJson(int button)
 }

 // Callback function that will be executed when data is received
-void handleRemote(uint8_t *incomingData, size_t len) {
+void handleWiZdata(uint8_t *incomingData, size_t len) {
  message_structure_t *incoming = reinterpret_cast<message_structure_t *>(incomingData);

  if (strcmp(last_signal_src, linked_remote) != 0) {
@ -202,8 +208,15 @@ void handleRemote(uint8_t *incomingData, size_t len) {
  DEBUG_PRINT(F("] button: "));
  DEBUG_PRINTLN(incoming->button);

-  if (!remoteJson(incoming->button))
-    switch (incoming->button) {
+  ESPNowButton = incoming->button; // save state, do not process in callback (can cause glitches)
+  last_seq = cur_seq;
+}
+
+// process ESPNow button data (acesses FS, should not be called while update to avoid glitches)
+void handleRemote() {
+  if(ESPNowButton >= 0) {
+  if (!remoteJson(ESPNowButton))
+    switch (ESPNowButton) {
      case WIZMOTE_BUTTON_ON             : setOn();                                         break;
      case WIZMOTE_BUTTON_OFF            : setOff();                                        break;
      case WIZMOTE_BUTTON_ONE            : presetWithFallback(1, FX_MODE_STATIC,        0); break;
@ -219,9 +232,10 @@ void handleRemote(uint8_t *incomingData, size_t len) {
      case WIZ_SMART_BUTTON_BRIGHT_DOWN  : brightnessDown();                                break;
      default: break;
    }
-  last_seq = cur_seq;
+  }
+  ESPNowButton = -1;
 }

 #else
-void handleRemote(uint8_t *incomingData, size_t len) {}
+void handleRemote() {}
 #endif
--- a/wled00/set.cpp
+++ b/wled00/set.cpp
@ -134,11 +134,13 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
    strip.correctWB = request->hasArg(F("CCT"));
    strip.cctFromRgb = request->hasArg(F("CR"));
    cctICused = request->hasArg(F("IC"));
-    strip.cctBlending = request->arg(F("CB")).toInt();
-    Bus::setCCTBlend(strip.cctBlending);
+    Bus::setCCTBlend(request->arg(F("CB")).toInt());
    Bus::setGlobalAWMode(request->arg(F("AW")).toInt());
    strip.setTargetFps(request->arg(F("FR")).toInt());
    useGlobalLedBuffer = request->hasArg(F("LD"));
+    #if defined(ARDUINO_ARCH_ESP32) && !defined(CONFIG_IDF_TARGET_ESP32C3)
+    useParallelI2S = request->hasArg(F("PR"));
+    #endif

    bool busesChanged = false;
    for (int s = 0; s < WLED_MAX_BUSSES+WLED_MIN_VIRTUAL_BUSSES; s++) {
@ -208,8 +210,7 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
      type |= request->hasArg(rf) << 7; // off refresh override
      // actual finalization is done in WLED::loop() (removing old busses and adding new)
      // this may happen even before this loop is finished so we do "doInitBusses" after the loop
-      if (busConfigs[s] != nullptr) delete busConfigs[s];
-      busConfigs[s] = new BusConfig(type, pins, start, length, colorOrder | (channelSwap<<4), request->hasArg(cv), skip, awmode, freq, useGlobalLedBuffer, maPerLed, maMax);
+      busConfigs.push_back(std::move(BusConfig(type, pins, start, length, colorOrder | (channelSwap<<4), request->hasArg(cv), skip, awmode, freq, useGlobalLedBuffer, maPerLed, maMax)));
      busesChanged = true;
    }
    //doInitBusses = busesChanged; // we will do that below to ensure all input data is processed
--- a/wled00/udp.cpp
+++ b/wled00/udp.cpp
@ -300,7 +300,7 @@ void parseNotifyPacket(uint8_t *udpIn) {
      if (!receiveSegmentOptions) {
        DEBUG_PRINTF_P(PSTR("Set segment w/o options: %d [%d,%d;%d,%d]\n"), id, (int)start, (int)stop, (int)startY, (int)stopY);
        strip.suspend(); //should not be needed as UDP handling is not done in ISR callbacks but still added "just in case"
-        selseg.setUp(start, stop, selseg.grouping, selseg.spacing, offset, startY, stopY);
+        selseg.setGeometry(start, stop, selseg.grouping, selseg.spacing, offset, startY, stopY);
        strip.resume();
        continue; // we do receive bounds, but not options
      }
@ -342,12 +342,12 @@ void parseNotifyPacket(uint8_t *udpIn) {
      if (receiveSegmentBounds) {
        DEBUG_PRINTF_P(PSTR("Set segment w/ options: %d [%d,%d;%d,%d]\n"), id, (int)start, (int)stop, (int)startY, (int)stopY);
        strip.suspend(); //should not be needed as UDP handling is not done in ISR callbacks but still added "just in case"
-        selseg.setUp(start, stop, udpIn[5+ofs], udpIn[6+ofs], offset, startY, stopY);
+        selseg.setGeometry(start, stop, udpIn[5+ofs], udpIn[6+ofs], offset, startY, stopY);
        strip.resume();
      } else {
        DEBUG_PRINTF_P(PSTR("Set segment grouping: %d [%d,%d]\n"), id, (int)udpIn[5+ofs], (int)udpIn[6+ofs]);
        strip.suspend(); //should not be needed as UDP handling is not done in ISR callbacks but still added "just in case"
-        selseg.setUp(selseg.start, selseg.stop, udpIn[5+ofs], udpIn[6+ofs], selseg.offset, selseg.startY, selseg.stopY);
+        selseg.setGeometry(selseg.start, selseg.stop, udpIn[5+ofs], udpIn[6+ofs], selseg.offset, selseg.startY, selseg.stopY);
        strip.resume();
      }
    }
@ -979,7 +979,7 @@ void espNowReceiveCB(uint8_t* address, uint8_t* data, uint8_t len, signed int rs

  // handle WiZ Mote data
  if (data[0] == 0x91 || data[0] == 0x81 || data[0] == 0x80) {
-    handleRemote(data, len);
+    handleWiZdata(data, len);
    return;
  }

--- a/wled00/util.cpp
+++ b/wled00/util.cpp
@ -52,7 +52,7 @@ void parseNumber(const char* str, byte* val, byte minv, byte maxv)
  *val = atoi(str);
 }

-
+//getVal supports inc/decrementing and random ("X~Y(r|~[w][-][Z])" form)
 bool getVal(JsonVariant elem, byte* val, byte vmin, byte vmax) {
  if (elem.is<int>()) {
 		if (elem < 0) return false; //ignore e.g. {"ps":-1}
@ -60,8 +60,12 @@ bool getVal(JsonVariant elem, byte* val, byte vmin, byte vmax) {
    return true;
  } else if (elem.is<const char*>()) {
    const char* str = elem;
-    size_t len = strnlen(str, 12);
-    if (len == 0 || len > 10) return false;
+    size_t len = strnlen(str, 14);
+    if (len == 0 || len > 12) return false;
+    // fix for #3605 & #4346
+    // ignore vmin and vmax and use as specified in API
+    if (len > 3 && (strchr(str,'r') || strchr(str,'~') != strrchr(str,'~'))) vmax = vmin = 0; // we have "X~Y(r|~[w][-][Z])" form
+    // end fix
    parseNumber(str, val, vmin, vmax);
    return true;
  }
--- a/wled00/wled.cpp
+++ b/wled00/wled.cpp
@ -84,6 +84,9 @@ void WLED::loop()
  #ifndef WLED_DISABLE_INFRARED
  handleIR();
  #endif
+  #ifndef WLED_DISABLE_ESPNOW
+  handleRemote();
+  #endif
  #ifndef WLED_DISABLE_ALEXA
  handleAlexa();
  #endif
@ -179,46 +182,7 @@ void WLED::loop()
    DEBUG_PRINTLN(F("Re-init busses."));
    bool aligned = strip.checkSegmentAlignment(); //see if old segments match old bus(ses)
    BusManager::removeAll();
-    unsigned mem = 0;
-    // determine if it is sensible to use parallel I2S outputs on ESP32 (i.e. more than 5 outputs = 1 I2S + 4 RMT)
-    bool useParallel = false;
-    #if defined(ARDUINO_ARCH_ESP32) && !defined(ARDUINO_ARCH_ESP32S2) && !defined(ARDUINO_ARCH_ESP32S3) && !defined(ARDUINO_ARCH_ESP32C3)
-    unsigned digitalCount = 0;
-    unsigned maxLedsOnBus = 0;
-    unsigned maxChannels = 0;
-    for (unsigned i = 0; i < WLED_MAX_BUSSES+WLED_MIN_VIRTUAL_BUSSES; i++) {
-      if (busConfigs[i] == nullptr) break;
-      if (!Bus::isDigital(busConfigs[i]->type)) continue;
-      if (!Bus::is2Pin(busConfigs[i]->type)) {
-        digitalCount++;
-        unsigned channels = Bus::getNumberOfChannels(busConfigs[i]->type);
-        if (busConfigs[i]->count > maxLedsOnBus) maxLedsOnBus = busConfigs[i]->count;
-        if (channels > maxChannels) maxChannels  = channels;
-      }
-    }
-    DEBUG_PRINTF_P(PSTR("Maximum LEDs on a bus: %u\nDigital buses: %u\n"), maxLedsOnBus, digitalCount);
-    // we may remove 300 LEDs per bus limit when NeoPixelBus is updated beyond 2.9.0
-    if (maxLedsOnBus <= 300 && digitalCount > 5) {
-      DEBUG_PRINTF_P(PSTR("Switching to parallel I2S."));
-      useParallel = true;
-      BusManager::useParallelOutput();
-      mem = BusManager::memUsage(maxChannels, maxLedsOnBus, 8); // use alternate memory calculation (hse to be used *after* useParallelOutput())
-    }
-    #endif
-    // create buses/outputs
-    for (unsigned i = 0; i < WLED_MAX_BUSSES+WLED_MIN_VIRTUAL_BUSSES; i++) {
-      if (busConfigs[i] == nullptr || (!useParallel && i > 10)) break;
-      if (useParallel && i < 8) {
-        // if for some unexplained reason the above pre-calculation was wrong, update
-        unsigned memT = BusManager::memUsage(*busConfigs[i]); // includes x8 memory allocation for parallel I2S
-        if (memT > mem) mem = memT; // if we have unequal LED count use the largest
-      } else
-        mem += BusManager::memUsage(*busConfigs[i]); // includes global buffer
-      if (mem <= MAX_LED_MEMORY) BusManager::add(*busConfigs[i]);
-      delete busConfigs[i];
-      busConfigs[i] = nullptr;
-    }
-    strip.finalizeInit(); // also loads default ledmap if present
+    strip.finalizeInit(); // will create buses and also load default ledmap if present
    BusManager::setBrightness(bri); // fix re-initialised bus' brightness #4005
    if (aligned) strip.makeAutoSegments();
    else strip.fixInvalidSegments();
@ -478,10 +442,7 @@ void WLED::setup()
  if (strcmp(multiWiFi[0].clientSSID, DEFAULT_CLIENT_SSID) == 0)
    showWelcomePage = true;
  WiFi.persistent(false);
-  #ifdef WLED_USE_ETHERNET
  WiFi.onEvent(WiFiEvent);
-  #endif
-
  WiFi.mode(WIFI_STA); // enable scanning
  findWiFi(true);      // start scanning for available WiFi-s

@ -571,6 +532,7 @@ void WLED::beginStrip()
  strip.makeAutoSegments();
  strip.setBrightness(0);
  strip.setShowCallback(handleOverlayDraw);
+  doInitBusses = false;

  if (turnOnAtBoot) {
    if (briS > 0) bri = briS;
@ -781,7 +743,7 @@ int8_t WLED::findWiFi(bool doScan) {

 void WLED::initConnection()
 {
-  DEBUG_PRINTLN(F("initConnection() called."));
+  DEBUG_PRINTF_P(PSTR("initConnection() called @ %lus.\n"), millis()/1000);

  #ifdef WLED_ENABLE_WEBSOCKETS
  ws.onEvent(wsEvent);
@ -796,6 +758,7 @@ void WLED::initConnection()
 #endif

  WiFi.disconnect(true); // close old connections
+  delay(5);              // wait for hardware to be ready
 #ifdef ESP8266
  WiFi.setPhyMode(force802_3g ? WIFI_PHY_MODE_11G : WIFI_PHY_MODE_11N);
 #endif
@ -825,9 +788,7 @@ void WLED::initConnection()
  if (WLED_WIFI_CONFIGURED) {
    showWelcomePage = false;
    
-    DEBUG_PRINT(F("Connecting to "));
-    DEBUG_PRINT(multiWiFi[selectedWiFi].clientSSID);
-    DEBUG_PRINTLN(F("..."));
+    DEBUG_PRINTF_P(PSTR("Connecting to %s...\n"), multiWiFi[selectedWiFi].clientSSID);

    // convert the "serverDescription" into a valid DNS hostname (alphanumeric)
    char hostname[25];
@ -926,7 +887,8 @@ void WLED::handleConnection()
 {
  static bool scanDone = true;
  static byte stacO = 0;
-  unsigned long now = millis();
+  const unsigned long now = millis();
+  const unsigned long nowS = now/1000;
  const bool wifiConfigured = WLED_WIFI_CONFIGURED;

  // ignore connection handling if WiFi is configured and scan still running
@ -935,7 +897,7 @@ void WLED::handleConnection()
    return;

  if (lastReconnectAttempt == 0 || forceReconnect) {
-    DEBUG_PRINTLN(F("Initial connect or forced reconnect."));
+    DEBUG_PRINTF_P(PSTR("Initial connect or forced reconnect (@ %lus).\n"), nowS);
    selectedWiFi = findWiFi(); // find strongest WiFi
    initConnection();
    interfacesInited = false;
@ -955,8 +917,7 @@ void WLED::handleConnection()
 #endif
    if (stac != stacO) {
      stacO = stac;
-      DEBUG_PRINT(F("Connected AP clients: "));
-      DEBUG_PRINTLN(stac);
+      DEBUG_PRINTF_P(PSTR("Connected AP clients: %d\n"), (int)stac);
      if (!WLED_CONNECTED && wifiConfigured) {        // trying to connect, but not connected
        if (stac)
          WiFi.disconnect();        // disable search so that AP can work
@ -979,6 +940,7 @@ void WLED::handleConnection()
      initConnection();
      interfacesInited = false;
      scanDone = true;
+      return;
    }
    //send improv failed 6 seconds after second init attempt (24 sec. after provisioning)
    if (improvActive > 2 && now - lastReconnectAttempt > 6000) {
@ -987,13 +949,13 @@ void WLED::handleConnection()
    }
    if (now - lastReconnectAttempt > ((stac) ? 300000 : 18000) && wifiConfigured) {
      if (improvActive == 2) improvActive = 3;
-      DEBUG_PRINTLN(F("Last reconnect too old."));
+      DEBUG_PRINTF_P(PSTR("Last reconnect (%lus) too old (@ %lus).\n"), lastReconnectAttempt/1000, nowS);
      if (++selectedWiFi >= multiWiFi.size()) selectedWiFi = 0; // we couldn't connect, try with another network from the list
      initConnection();
    }
    if (!apActive && now - lastReconnectAttempt > 12000 && (!wasConnected || apBehavior == AP_BEHAVIOR_NO_CONN)) {
      if (!(apBehavior == AP_BEHAVIOR_TEMPORARY && now > WLED_AP_TIMEOUT)) {
-        DEBUG_PRINTLN(F("Not connected AP."));
+        DEBUG_PRINTF_P(PSTR("Not connected AP (@ %lus).\n"), nowS);
        initAP();  // start AP only within first 5min
      }
    }
@ -1003,7 +965,7 @@ void WLED::handleConnection()
        dnsServer.stop();
        WiFi.softAPdisconnect(true);
        apActive = false;
-        DEBUG_PRINTLN(F("Temporary AP disabled."));
+        DEBUG_PRINTF_P(PSTR("Temporary AP disabled (@ %lus).\n"), nowS);
      }
    }
  } else if (!interfacesInited) { //newly connected
--- a/wled00/wled.h
+++ b/wled00/wled.h
@ -3,12 +3,11 @@
 /*
   Main sketch, global variable declarations
   @title WLED project sketch
-   @version 0.15.0-b7
   @author Christian Schwinne
 */

 // version code in format yymmddb (b = daily build)
-#define VERSION 2410270
+#define VERSION 2502220

 //uncomment this if you have a "my_config.h" file you'd like to use
 //#define WLED_USE_MY_CONFIG
@ -368,7 +367,7 @@ WLED_GLOBAL bool noWifiSleep _INIT(false);
 WLED_GLOBAL bool force802_3g _INIT(false);
 #endif // WLED_SAVE_RAM
 #ifdef ARDUINO_ARCH_ESP32
-  #if defined(LOLIN_WIFI_FIX) && (defined(ARDUINO_ARCH_ESP32C3) || defined(ARDUINO_ARCH_ESP32S2) || defined(ARDUINO_ARCH_ESP32S3))
+  #if defined(LOLIN_WIFI_FIX) && (defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32S3))
 WLED_GLOBAL uint8_t txPower _INIT(WIFI_POWER_8_5dBm);
  #else
 WLED_GLOBAL uint8_t txPower _INIT(WIFI_POWER_19_5dBm);
@ -395,6 +394,9 @@ WLED_GLOBAL byte bootPreset   _INIT(0);                   // save preset to load
 WLED_GLOBAL bool useGlobalLedBuffer _INIT(false); // double buffering disabled on ESP8266
 #else
 WLED_GLOBAL bool useGlobalLedBuffer _INIT(true);  // double buffering enabled on ESP32
+  #ifndef CONFIG_IDF_TARGET_ESP32C3
+WLED_GLOBAL bool useParallelI2S     _INIT(false); // parallel I2S for ESP32
+  #endif
 #endif
 #ifdef WLED_USE_IC_CCT
 WLED_GLOBAL bool cctICused          _INIT(true);  // CCT IC used (Athom 15W bulbs)
@ -884,7 +886,7 @@ WLED_GLOBAL bool e131NewData _INIT(false);
 // led fx library object
 WLED_GLOBAL BusManager busses _INIT(BusManager());
 WLED_GLOBAL WS2812FX strip _INIT(WS2812FX());
-WLED_GLOBAL BusConfig* busConfigs[WLED_MAX_BUSSES+WLED_MIN_VIRTUAL_BUSSES] _INIT({nullptr}); //temporary, to remember values from network callback until after
+WLED_GLOBAL std::vector<BusConfig> busConfigs; //temporary, to remember values from network callback until after
 WLED_GLOBAL bool doInitBusses _INIT(false);
 WLED_GLOBAL int8_t loadLedmap _INIT(-1);
 WLED_GLOBAL uint8_t currentLedmap _INIT(0);
--- a/wled00/xml.cpp
+++ b/wled00/xml.cpp
@ -289,6 +289,7 @@ void getSettingsJS(byte subPage, Print& settingsScript)
    printSetFormValue(settingsScript,PSTR("FR"),strip.getTargetFps());
    printSetFormValue(settingsScript,PSTR("AW"),Bus::getGlobalAWMode());
    printSetFormCheckbox(settingsScript,PSTR("LD"),useGlobalLedBuffer);
+    printSetFormCheckbox(settingsScript,PSTR("PR"),BusManager::hasParallelOutput());  // get it from bus manager not global variable

    unsigned sumMa = 0;
    for (int s = 0; s < BusManager::getNumBusses(); s++) {
Author	SHA1	Message	Date
Will Tatam	6572efbf9f	Update version to 0.15.1.beta2	2025-02-22 18:02:31 +00:00
Blaž Kristan	dbe76479a2	Merge pull request #4484 from blazoncek/parallel-I2S WWA strip support & parallel I2S for S2/S3 (bumping outputs from 5/4 to 12)	2025-02-22 18:44:10 +01:00
netmindz	dc3d463925	Merge pull request #4428 from blazoncek/waterfall-fix FX: Waterfall, Matripix & Dissolve fix	2025-02-22 17:49:10 +01:00
netmindz	f593d404cb	Merge pull request #4244 from MoonModules/framerate_ac015 Improved framerate control code - strip.show(), strip.service()	2025-02-22 11:21:27 +00:00
netmindz	b75a2de485	Merge pull request #4356 from blazoncek/json-cycle Proper fix for #3605 & #4346	2025-02-22 11:21:09 +00:00
Blaž Kristan	642a9e3652	Idle current bugfix (#4402 )	2025-02-22 11:20:34 +00:00
Frank	85d3f6f11c	Merge pull request #4398 from Aircoookie/4395-platformio_override update platformio override example file (solves #4395)	2025-02-22 11:19:48 +00:00
Frank	f490908278	Merge pull request #4439 from dosipod/Upstream_PRs Update readme.md for rgb-rotary-encoder usermod	2025-02-22 11:17:29 +00:00
Frank	1fc3cc83bd	Merge pull request #4450 from adafruit/main Add correct pin availability for ESP32 Mini modules	2025-02-22 11:16:06 +00:00
Will Miles	e96fd8ae58	Merge pull request #4511 from mlichvar/main fix reproduction in game of life	2025-02-22 11:06:54 +00:00
netmindz	c46e328b59	Merge pull request #4556 from spiro-c/npm-check Fix for: Build should stop if npm fails #4513	2025-02-22 11:02:32 +00:00
Damian Schneider	fa2f831044	fix for incorrect hardware timing	2025-02-16 10:36:03 +00:00
Damian Schneider	1bf13ea525	BUGFIX in oscillate FX (#4494 ) effect was changed from int to uint but it relied on negative numbers. fixed by checking overflow and a cast.	2025-02-16 10:35:40 +00:00
maxi4329	edc6022441	Fix for #4153 (#4253 ) * fix for #4153 * only load touch/mouse events for touch/mouse devices * undid formating changes * undid more formating changes * undid all formating changes * use pointerover and pointerout eventlisteners	2025-02-15 15:16:43 +01:00
Damian Schneider	2ac4d03160	Fixes first pixel not being set in Stream FX (#4542 ) * Fixes first pixel not being set * added fix to Stream 2 as well	2025-02-10 20:34:24 +01:00
netmindz	cc4a4c4ae1	Merge pull request #4428 from blazoncek/waterfall-fix FX: Waterfall, Matripix & Dissolve fix	2025-01-16 15:55:33 +00:00
Will Tatam	4e11ecda4b	Set version to 0.15.1.beta1	2025-01-16 13:18:50 +00:00
netmindz	473700e4c0	Merge pull request #4018 from Brandon502/main Added Cube Mapping Tool	2025-01-16 13:03:47 +00:00
netmindz	0d5a0fb830	Merge pull request #4386 from DedeHai/ESPNow_glitchfix Fix for ESPNow remote causing output glitches	2025-01-16 13:01:40 +00:00
Damian Schneider	012143bd7b	BUGFIX in oscillate FX effect was changed from int to uint but it relied on negative numbers. fixed by checking overflow and a cast.	2025-01-14 18:46:47 +01:00
Damian Schneider	700a7076fd	added a delay after switching relay (#4474 ) - helps to stabilize power on the LEDs before sending data	2025-01-12 15:20:27 +01:00
Damian Schneider	5fc2175dd4	Playlist output glitchfix update: found it also happens on S3 (#4462 ) * Fix output glitches when playlist changes preset update: glitches also happen on S3	2025-01-12 15:20:27 +01:00
Damian Schneider	c9b95e22d3	Fix output glitches when playlist changes preset (#4442 ) same issue as with https://github.com/Aircoookie/WLED/pull/4386 waiting on bus to finish updating before file access fixes the glitches. this issue is only present on S2 and C3, not on ESP8266 or dual-core ESPs, the fix is only applied for these two.	2025-01-12 15:20:27 +01:00
Damian Schneider	a265318037	fixed CIE brightness calculation for PWM outputs	2025-01-12 15:20:27 +01:00
Damian Schneider	866a4c8ab6	fix for repeating glitch glitch appeared every 65s due to missing uint16_t overflow.	2025-01-12 15:20:26 +01:00
TripleWhy	9dc1022010	palette effect overflow fix	2025-01-10 17:41:12 +00:00
Will Tatam	faadb67eb0	update changelog for 2412100	2024-12-10 20:20:28 +00:00
Will Tatam	a111a2e7a1	update version to 0.15.0	2024-12-10 20:13:12 +00:00
netmindz	32864d8986	update version to 0.15.0	2024-12-10 18:54:39 +00:00
netmindz	d7bebc2659	Merge pull request #4360 from euphi/patch-1 Usermod BME280: Fix "Unit of Measurement" for temperature	2024-12-10 08:07:24 +00:00
Blaž Kristan	af410ae2d0	WiFi reconnect bugfix - additional debug info	2024-12-09 23:06:21 +00:00
Will Tatam	1891cc816f	Merge branch '0_15_0' of https://github.com/Aircoookie/WLED into 0_15_0	2024-12-09 09:33:33 +00:00
Ian Hubbertz	9a4073e606	Fix "Unit of Measurement" for BME280 temperature The Unit of Measurement ("tempScale") of the MQTT message is set for each published measurement - but not for the homeassistant discovery. Thus, openhab (and mabye other systems?) don't recognize the value as "Number" - so it uses String instead. This is somehow annoying when trying to configure the sensor channel to be linked to an existing item in OpenHAB. (Items that are created automatically or with "Add point to model" can be configured in a way that the String is transformed to Number or Number:Temperature, but existing Items cannot be linked). When a "Unit of Measurement" is set in HomeAssistant discovery, the HA binding of OpenHAB notices that the MQTT String is a number and automatically converts it.	2024-12-07 21:33:46 +01:00
Damian Schneider	b78229d1e2	Fix update for #4193 (twinkle fox & cat) - previous fix worked but there was still an overflow after some time passed. there were still missing roll-overs apparently: reverting these two variables back to 16bit/8bit should fix it for good.	2024-12-05 06:49:17 +01:00
Damian Schneider	71b242874f	Fix for #4193 (twinkle fox & cat)	2024-12-04 20:39:19 +01:00
Will Tatam	9328e6faca	Merge branch '0_15_0' of https://github.com/Aircoookie/WLED into 0_15_0	2024-11-30 12:07:46 +00:00
netmindz	bbacc2daae	Merge pull request #4287 from netmindz/v0.15.0-rcX 0.15.0-rc1	2024-11-30 11:42:46 +00:00
Will Tatam	3e22f9cabb	Merge branch '0_15' into 0_15_0	2024-11-30 11:39:13 +00:00
Will Miles	685ad83d4b	PolyBus: Clarify use of clock_kHz While not used by most bus types, it's not an optional parameter.	2024-11-27 19:36:16 +00:00
Will Miles	62ddb18a1a	BusDigital::begin: Pass clock rate argument Fixes bug introduced by #4312.	2024-11-27 19:36:01 +00:00
Blaž Kristan	6a12378475	Fix for #4321	2024-11-27 19:33:29 +00:00
Blaž Kristan	d26b3108da	Fix for #4300	2024-11-27 11:04:52 +00:00
Will Tatam	c89e4576b4	Dedicated release workflow	2024-11-27 10:42:38 +00:00
Will Tatam	bc79f44a26	workflow refactor to used shared build file	2024-11-27 10:42:29 +00:00
Will Tatam	7ece14ff3f	rename workflow ready for workflow refactor	2024-11-27 10:42:19 +00:00
Will Tatam	0b3643132b	Update to 2411250	2024-11-25 23:47:41 +00:00
Will Tatam	a5693fbf8d	Merge branch '0_15_0' into v0.15.0-rcX	2024-11-25 23:45:34 +00:00
maxi4329	5c5b70f52b	version changed to 20	2024-11-25 23:34:27 +00:00
maxi4329	ae97e388a6	indened formating	2024-11-25 23:34:20 +00:00
maxi4329	37cddcaacc	specified required nodejs ver	2024-11-25 23:34:13 +00:00
Will Miles	a1b332fc78	handleSet: Fix incorrect response generation Don't generate a response if there's no HTTP request. Fixes #4269	2024-11-25 23:33:53 +00:00
Frank	86d7c24513	rename delay -> frameDelay Avoiding name collisions with the 'delay' function.	2024-11-25 23:32:27 +00:00
Damian Schneider	b28add3b8b	Added define for bitshift, removed dithering dithering is not really needed, the FPS_MULTIPLIER is a much better option.	2024-11-25 23:31:17 +00:00
Damian Schneider	5fd3a513a4	bugfix bitshift was still set from testing, forgot to update	2024-11-25 23:31:08 +00:00
Damian Schneider	b98a8a10b0	improved FPS calc resolution, added averaging & multiplier compileflags Fixed point calculation for improved accuracy, dithering in debug builds only. Averaging and optional multiplier can be set as compile flags, example for speed testing with long averaging and a 10x multiplier: -D FPS_CALC_AVG=200 -D FPS_MULTIPLIER=10 The calculation resolution is limited (9.7bit fixed point) so values larger than 200 can hit resolution limit and get stuck before reaching the final value. If WLED_DEBUG is defined, dithering is added to the returned value so sub-frame accuracy is possible in post-processingwithout enabling the multiplier.	2024-11-25 23:30:59 +00:00
netmindz	2bee2793ef	Merge pull request #4309 from netmindz/release-name-fix Fix release name macro expansion	2024-11-25 23:12:04 +00:00
netmindz	2f6fa66f4d	Merge pull request #4309 from netmindz/release-name-fix Fix release name macro expansion	2024-11-25 23:04:22 +00:00
Will Tatam	5d38acd787	Update CHANGELOG	2024-11-24 21:04:50 +00:00
Will Tatam	e607fcb5c5	Merge branch '0_15_0' into v0.15.0-rcX	2024-11-24 21:04:08 +00:00
Frank	8a18555ae4	Merge pull request #4243 from MoonModules/AC_0_15_S3-WROOM2 Add support for ESP32-S3 WROOM-2 (solves #4099)	2024-11-24 20:49:49 +00:00
netmindz	beb709dc8f	Merge pull request #4312 from willmmiles/mixed-led-crash Defer calling begin() on buses	2024-11-24 20:46:45 +00:00
Will Tatam	7a58c69a80	Stip \" from WLED_RELEASE_NAME	2024-11-23 16:50:34 +00:00
Will Tatam	1082c85789	Fix WLED_RELEASE_NAME=ESP32-S3_WROOM-2	2024-11-23 16:37:54 +00:00
Will Tatam	568d2edd96	Remove TOSTRING for releaseString and add quotes to WLED_RELEASE_NAME	2024-11-23 16:37:03 +00:00
Will Tatam	d2d56ebbd2	0.15.0-rc1	2024-11-15 20:27:30 +00:00