From 0a757b6bebac02b68b4200e295582d30be95c9cf Mon Sep 17 00:00:00 2001
From: Jason2866 <24528715+Jason2866@users.noreply.github.com>
Date: Wed, 14 Apr 2021 19:42:13 +0200
Subject: [PATCH 1/4] Update platformio_override_sample.ini

---
 platformio_override_sample.ini | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/platformio_override_sample.ini b/platformio_override_sample.ini
index 9821e2e97..a9bbf6e96 100644
--- a/platformio_override_sample.ini
+++ b/platformio_override_sample.ini
@@ -185,15 +185,15 @@ lib_ignore                  =
     Micro-RTSP
     ESP32 Ethernet
 
-; *** EXPERIMENTAL Tasmota version for Arduino ESP32 IDF4.4. Linking not working.
-[env:tasmota32idf4]
+; *** EXPERIMENTAL Tasmota version for Arduino ESP32-C3
+[env:tasmota32c3]
 extends                     = env:tasmota32_base
 platform                    = https://github.com/Jason2866/platform-espressif32.git#feature/arduino-idf-v4.4
-platform_packages           = framework-arduinoespressif32 @ https://github.com/Jason2866/arduino-esp32/releases/download/esp32-2.0.0-pre/esp32-2.0.0-pre.zip
+platform_packages           = framework-arduinoespressif32 @ https://github.com/Jason2866/esp32-arduino-lib-builder/releases/download/v.2.0.0.pre/framework-arduinoespressif32-c3-1cb31e509.tar.gz
                               platformio/tool-mklittlefs @ ~1.203.200522
 build_unflags               = ${esp32_defaults.build_unflags}
 build_flags                 = ${esp32_defaults.build_flags}
-                              ;-DESP32_STAGE=true
+                              -DESP32_STAGE=true
 
 ; *** Debug version used for PlatformIO Home Project Inspection
 [env:tasmota-debug]

From 0319202e44d847696268928933e5c83bbf28a234 Mon Sep 17 00:00:00 2001
From: Jason2866 <24528715+Jason2866@users.noreply.github.com>
Date: Fri, 16 Apr 2021 15:54:19 +0200
Subject: [PATCH 2/4] Update platformio_override_sample.ini

---
 platformio_override_sample.ini | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platformio_override_sample.ini b/platformio_override_sample.ini
index a9bbf6e96..0ef076297 100644
--- a/platformio_override_sample.ini
+++ b/platformio_override_sample.ini
@@ -208,3 +208,4 @@ build_type                  = debug
 build_unflags               = ${esp32_defaults.build_unflags}
 build_flags                 = ${esp32_defaults.build_flags}
 ;                              -Wstack-usage=300
+

From ef7e62f7e272cb6af72b6941455256783998aebf Mon Sep 17 00:00:00 2001
From: Jason2866 <24528715+Jason2866@users.noreply.github.com>
Date: Fri, 16 Apr 2021 15:56:04 +0200
Subject: [PATCH 3/4] Update platformio_override_sample.ini

---
 platformio_override_sample.ini | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/platformio_override_sample.ini b/platformio_override_sample.ini
index 0ef076297..4d10f5c60 100644
--- a/platformio_override_sample.ini
+++ b/platformio_override_sample.ini
@@ -35,6 +35,7 @@ default_envs =
 ;                tasmota32-ir
 ;                tasmota32-ircustom
 ;                tasmota32solo1
+;                tasmota32c3
 ;                tasmota32s2
 ;                tasmota32-odroidgo
 ;                tasmota32-core2
@@ -185,15 +186,32 @@ lib_ignore                  =
     Micro-RTSP
     ESP32 Ethernet
 
-; *** EXPERIMENTAL Tasmota version for Arduino ESP32-C3
+; *** EXPERIMENTAL Tasmota version for ESP32-C3
 [env:tasmota32c3]
 extends                     = env:tasmota32_base
+board                       = esp32c3
+platform                    = https://github.com/Jason2866/platform-espressif32.git#feature/arduino-c3
+platform_packages           = framework-arduinoespressif32 @ https://github.com/Jason2866/esp32-arduino-lib-builder/releases/download/v.2.0.0.pre/framework-arduinoespressif32-master-a6f33a9d3.tar.gz
+                              ; needed toolchain for Windows
+                              toolchain-riscv32 @ https://github.com/Jason2866/platform-espressif32/releases/download/8.4.0/riscv32-esp-elf-gcc8_4_0-crosstool-ng-1.24.0-123-g64eb9ff-win32.zip
+                              ; needed toolchain for Linux
+                              ;toolchain-riscv32 @ https://github.com/Jason2866/platform-espressif32/releases/download/8.4.0/riscv32-esp-elf-gcc8_4_0-crosstool-ng-1.24.0-123-g64eb9ff-linux-amd64.tar.gz
+                              ; needed toolchain for MacOS
+                              ;toolchain-riscv32 @ https://github.com/Jason2866/platform-espressif32/releases/download/8.4.0/riscv32-esp-elf-gcc8_4_0-crosstool-ng-1.24.0-123-g64eb9ff-macos.tar.gz
+                              platformio/tool-mklittlefs @ ~1.203.200522
+build_unflags               = ${esp32_defaults.build_unflags} -mtarget-align
+build_flags                 = ${esp32_defaults.build_flags}
+                              ;-DESP32_STAGE=true
+
+; *** EXPERIMENTAL Tasmota version for Arduino ESP32 IDF4.4. Linking not working.
+[env:tasmota32idf4]
+extends                     = env:tasmota32_base
 platform                    = https://github.com/Jason2866/platform-espressif32.git#feature/arduino-idf-v4.4
-platform_packages           = framework-arduinoespressif32 @ https://github.com/Jason2866/esp32-arduino-lib-builder/releases/download/v.2.0.0.pre/framework-arduinoespressif32-c3-1cb31e509.tar.gz
+platform_packages           = framework-arduinoespressif32 @ https://github.com/Jason2866/arduino-esp32/releases/download/esp32-2.0.0-pre/esp32-2.0.0-pre.zip
                               platformio/tool-mklittlefs @ ~1.203.200522
 build_unflags               = ${esp32_defaults.build_unflags}
 build_flags                 = ${esp32_defaults.build_flags}
-                              -DESP32_STAGE=true
+                              ;-DESP32_STAGE=true
 
 ; *** Debug version used for PlatformIO Home Project Inspection
 [env:tasmota-debug]
@@ -208,4 +226,3 @@ build_type                  = debug
 build_unflags               = ${esp32_defaults.build_unflags}
 build_flags                 = ${esp32_defaults.build_flags}
 ;                              -Wstack-usage=300
-

From c3fac5bf1269facb3b2e1e3df188f5d425cddefc Mon Sep 17 00:00:00 2001
From: Jason2866 <24528715+Jason2866@users.noreply.github.com>
Date: Fri, 16 Apr 2021 15:57:02 +0200
Subject: [PATCH 4/4] Experimental ESP32-C3

* Update esp32c3.json

* Add experimental C3

* ESP32-C3
---
 boards/esp32c3.json | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 boards/esp32c3.json

diff --git a/boards/esp32c3.json b/boards/esp32c3.json
new file mode 100644
index 000000000..bc703484c
--- /dev/null
+++ b/boards/esp32c3.json
@@ -0,0 +1,29 @@
+{
+  "build": {
+    "arduino":{
+      "ldscript": "esp32c3_out.ld"
+    },
+    "core": "esp32",
+    "f_cpu": "160000000L",
+    "f_flash": "80000000L",
+    "flash_mode": "dio",
+    "mcu": "esp32c3",
+    "variant": "esp32c3"
+  },
+  "connectivity": [
+    "wifi"
+  ],
+  "frameworks": [
+    "arduino"
+  ],
+  "name": "Espressif ESP32-C3",
+  "upload": {
+    "flash_size": "4MB",
+    "maximum_ram_size": 327680,
+    "maximum_size": 4194304,
+    "require_upload_port": true,
+    "speed": 460800
+  },
+  "url": "https://docs.espressif.com/projects/esp-idf/en/latest",
+  "vendor": "Espressif"
+}