Firmware upgrade requires tasmota

Merge pull request #4984 from wled/copilot/fix-d4f5fc55-f916-458a-9155-deb9bbff6662
Add ESP32 bootloader upgrade capability to OTA update page with JSON API support and ESP-IDF validation
2026-06-29 16:21:39 +00:00 · 2025-11-09 18:43:13 +00:00 · 2025-11-09 18:11:24 +00:00 · 2025-11-09 15:42:42 +00:00 · 2025-11-09 14:34:48 +00:00 · 2025-11-08 19:33:13 -05:00
31 changed files with 3123 additions and 231 deletions
@@ -0,0 +1,469 @@
+/*-------------------------------------------------------------------------
+NeoPixel driver for ESP32 RMTs using High-priority Interrupt
+
+(NB. This cannot be mixed with the non-HI driver.)
+
+Written by Will M. Miles.
+
+I invest time and resources providing this open source code,
+please support me by donating (see https://github.com/Makuna/NeoPixelBus)
+
+-------------------------------------------------------------------------
+This file is part of the Makuna/NeoPixelBus library.
+
+NeoPixelBus is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as
+published by the Free Software Foundation, either version 3 of
+the License, or (at your option) any later version.
+
+NeoPixelBus is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with NeoPixel.  If not, see
+<http://www.gnu.org/licenses/>.
+-------------------------------------------------------------------------*/
+
+#pragma once
+
+#if defined(ARDUINO_ARCH_ESP32)
+
+// Use the NeoEspRmtSpeed types from the driver-based implementation
+#include <NeoPixelBus.h>
+
+
+namespace NeoEsp32RmtHiMethodDriver {
+    // Install the driver for a specific channel, specifying timing properties
+    esp_err_t Install(rmt_channel_t channel, uint32_t rmtBit0, uint32_t rmtBit1, uint32_t resetDuration);
+
+    // Remove the driver on a specific channel
+    esp_err_t Uninstall(rmt_channel_t channel);
+
+    // Write a buffer of data to a specific channel.
+    // Buffer reference is held until write completes.
+    esp_err_t Write(rmt_channel_t channel, const uint8_t *src, size_t src_size);
+
+    // Wait until transaction is complete.
+    esp_err_t WaitForTxDone(rmt_channel_t channel, TickType_t wait_time);
+};
+
+template<typename T_SPEED, typename T_CHANNEL> class NeoEsp32RmtHIMethodBase
+{
+public:
+    typedef NeoNoSettings SettingsObject;
+
+    NeoEsp32RmtHIMethodBase(uint8_t pin, uint16_t pixelCount, size_t elementSize, size_t settingsSize)  :
+        _sizeData(pixelCount * elementSize + settingsSize),
+        _pin(pin)
+    {
+        construct();
+    }
+
+    NeoEsp32RmtHIMethodBase(uint8_t pin, uint16_t pixelCount, size_t elementSize, size_t settingsSize, NeoBusChannel channel) :
+        _sizeData(pixelCount* elementSize + settingsSize),
+        _pin(pin),
+        _channel(channel)
+    {
+        construct();
+    }
+
+    ~NeoEsp32RmtHIMethodBase()
+    {
+        // wait until the last send finishes before destructing everything
+        // arbitrary time out of 10 seconds
+        ESP_ERROR_CHECK_WITHOUT_ABORT(NeoEsp32RmtHiMethodDriver::WaitForTxDone(_channel.RmtChannelNumber, 10000 / portTICK_PERIOD_MS));
+
+        ESP_ERROR_CHECK(NeoEsp32RmtHiMethodDriver::Uninstall(_channel.RmtChannelNumber));
+
+        gpio_matrix_out(_pin, SIG_GPIO_OUT_IDX, false, false);
+        pinMode(_pin, INPUT);
+
+        free(_dataEditing);
+        free(_dataSending);
+    }
+
+    bool IsReadyToUpdate() const
+    {
+        return (ESP_OK == ESP_ERROR_CHECK_WITHOUT_ABORT_SILENT_TIMEOUT(NeoEsp32RmtHiMethodDriver::WaitForTxDone(_channel.RmtChannelNumber, 0)));
+    }
+
+    void Initialize()
+    {
+        rmt_config_t config = {};
+
+        config.rmt_mode = RMT_MODE_TX;
+        config.channel = _channel.RmtChannelNumber;
+        config.gpio_num = static_cast<gpio_num_t>(_pin);
+        config.mem_block_num = 1;
+        config.tx_config.loop_en = false;
+
+        config.tx_config.idle_output_en = true;
+        config.tx_config.idle_level = T_SPEED::IdleLevel;
+
+        config.tx_config.carrier_en = false;
+        config.tx_config.carrier_level = RMT_CARRIER_LEVEL_LOW;
+
+        config.clk_div = T_SPEED::RmtClockDivider;
+
+        ESP_ERROR_CHECK(rmt_config(&config));   // Uses ESP library
+        ESP_ERROR_CHECK(NeoEsp32RmtHiMethodDriver::Install(_channel.RmtChannelNumber, T_SPEED::RmtBit0, T_SPEED::RmtBit1, T_SPEED::RmtDurationReset));
+    }
+
+    void Update(bool maintainBufferConsistency)
+    {
+        // wait for not actively sending data
+        // this will time out at 10 seconds, an arbitrarily long period of time
+        // and do nothing if this happens
+        if (ESP_OK == ESP_ERROR_CHECK_WITHOUT_ABORT(NeoEsp32RmtHiMethodDriver::WaitForTxDone(_channel.RmtChannelNumber, 10000 / portTICK_PERIOD_MS)))
+        {
+            // now start the RMT transmit with the editing buffer before we swap
+            ESP_ERROR_CHECK_WITHOUT_ABORT(NeoEsp32RmtHiMethodDriver::Write(_channel.RmtChannelNumber, _dataEditing, _sizeData));
+
+            if (maintainBufferConsistency)
+            {
+                // copy editing to sending,
+                // this maintains the contract that "colors present before will
+                // be the same after", otherwise GetPixelColor will be inconsistent
+                memcpy(_dataSending, _dataEditing, _sizeData);
+            }
+
+            // swap so the user can modify without affecting the async operation
+            std::swap(_dataSending, _dataEditing);
+        }
+    }
+
+    bool AlwaysUpdate()
+    {
+        // this method requires update to be called only if changes to buffer
+        return false;
+    }
+
+    bool SwapBuffers()
+    {
+        std::swap(_dataSending, _dataEditing);
+        return true;
+    }
+
+    uint8_t* getData() const
+    {
+        return _dataEditing;
+    };
+
+    size_t getDataSize() const
+    {
+        return _sizeData;
+    }
+
+    void applySettings([[maybe_unused]] const SettingsObject& settings)
+    {
+    }
+
+private:
+    const size_t  _sizeData;      // Size of '_data*' buffers
+    const uint8_t _pin;            // output pin number
+    const T_CHANNEL _channel; // holds instance for multi channel support
+
+    // Holds data stream which include LED color values and other settings as needed
+    uint8_t*  _dataEditing;   // exposed for get and set
+    uint8_t*  _dataSending;   // used for async send using RMT
+
+
+    void construct()
+    {
+        _dataEditing = static_cast<uint8_t*>(malloc(_sizeData));
+        // data cleared later in Begin()
+
+        _dataSending = static_cast<uint8_t*>(malloc(_sizeData));
+        // no need to initialize it, it gets overwritten on every send
+    }
+};
+
+// normal
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2811, NeoEsp32RmtChannelN> NeoEsp32RmtHINWs2811Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannelN> NeoEsp32RmtHINWs2812xMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannelN> NeoEsp32RmtHINWs2816Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2805, NeoEsp32RmtChannelN> NeoEsp32RmtHINWs2805Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedSk6812, NeoEsp32RmtChannelN> NeoEsp32RmtHINSk6812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1814, NeoEsp32RmtChannelN> NeoEsp32RmtHINTm1814Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1829, NeoEsp32RmtChannelN> NeoEsp32RmtHINTm1829Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1914, NeoEsp32RmtChannelN> NeoEsp32RmtHINTm1914Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedApa106, NeoEsp32RmtChannelN> NeoEsp32RmtHINApa106Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTx1812, NeoEsp32RmtChannelN> NeoEsp32RmtHINTx1812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedGs1903, NeoEsp32RmtChannelN> NeoEsp32RmtHINGs1903Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed800Kbps, NeoEsp32RmtChannelN> NeoEsp32RmtHIN800KbpsMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed400Kbps, NeoEsp32RmtChannelN> NeoEsp32RmtHIN400KbpsMethod;
+typedef NeoEsp32RmtHINWs2805Method NeoEsp32RmtHINWs2814Method;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2811, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Ws2811Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Ws2812xMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Ws2816Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2805, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Ws2805Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedSk6812, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Sk6812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1814, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Tm1814Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1829, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Tm1829Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1914, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Tm1914Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedApa106, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Apa106Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTx1812, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Tx1812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedGs1903, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Gs1903Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed800Kbps, NeoEsp32RmtChannel0> NeoEsp32RmtHI0800KbpsMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed400Kbps, NeoEsp32RmtChannel0> NeoEsp32RmtHI0400KbpsMethod;
+typedef NeoEsp32RmtHI0Ws2805Method NeoEsp32RmtHI0Ws2814Method;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2811, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Ws2811Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Ws2812xMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Ws2816Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2805, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Ws2805Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedSk6812, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Sk6812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1814, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Tm1814Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1829, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Tm1829Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1914, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Tm1914Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedApa106, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Apa106Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTx1812, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Tx1812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedGs1903, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Gs1903Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed800Kbps, NeoEsp32RmtChannel1> NeoEsp32RmtHI1800KbpsMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed400Kbps, NeoEsp32RmtChannel1> NeoEsp32RmtHI1400KbpsMethod;
+typedef NeoEsp32RmtHI1Ws2805Method NeoEsp32RmtHI1Ws2814Method;
+
+#if !defined(CONFIG_IDF_TARGET_ESP32C3)
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2811, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Ws2811Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Ws2812xMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Ws2816Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2805, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Ws2805Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedSk6812, NeoEsp32RmtChannel2>  NeoEsp32RmtHI2Sk6812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1814, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Tm1814Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1829, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Tm1829Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1914, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Tm1914Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedApa106, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Apa106Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTx1812, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Tx1812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedGs1903, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Gs1903Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed800Kbps, NeoEsp32RmtChannel2> NeoEsp32RmtHI2800KbpsMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed400Kbps, NeoEsp32RmtChannel2> NeoEsp32RmtHI2400KbpsMethod;
+typedef NeoEsp32RmtHI2Ws2805Method NeoEsp32RmtHI2Ws2814Method;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2811, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Ws2811Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Ws2812xMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Ws2816Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2805, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Ws2805Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedSk6812, NeoEsp32RmtChannel3>  NeoEsp32RmtHI3Sk6812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1814, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Tm1814Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1829, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Tm1829Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1914, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Tm1914Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedApa106, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Apa106Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTx1812, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Tx1812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedGs1903, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Gs1903Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed800Kbps, NeoEsp32RmtChannel3> NeoEsp32RmtHI3800KbpsMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed400Kbps, NeoEsp32RmtChannel3> NeoEsp32RmtHI3400KbpsMethod;
+typedef NeoEsp32RmtHI3Ws2805Method NeoEsp32RmtHI3Ws2814Method;
+
+#if !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32S3)
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2811, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Ws2811Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Ws2812xMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Ws2816Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2805, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Ws2805Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedSk6812, NeoEsp32RmtChannel4>  NeoEsp32RmtHI4Sk6812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1814, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Tm1814Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1829, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Tm1829Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1914, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Tm1914Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedApa106, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Apa106Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTx1812, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Tx1812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedGs1903, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Gs1903Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed800Kbps, NeoEsp32RmtChannel4> NeoEsp32RmtHI4800KbpsMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed400Kbps, NeoEsp32RmtChannel4> NeoEsp32RmtHI4400KbpsMethod;
+typedef NeoEsp32RmtHI4Ws2805Method NeoEsp32RmtHI4Ws2814Method;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2811, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Ws2811Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Ws2812xMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Ws2816Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2805, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Ws2805Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedSk6812, NeoEsp32RmtChannel5>  NeoEsp32RmtHI5Sk6812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1814, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Tm1814Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1829, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Tm1829Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1914, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Tm1914Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedApa106, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Apa106Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTx1812, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Tx1812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedGs1903, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Gs1903Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed800Kbps, NeoEsp32RmtChannel5> NeoEsp32RmtHI5800KbpsMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed400Kbps, NeoEsp32RmtChannel5> NeoEsp32RmtHI5400KbpsMethod;
+typedef NeoEsp32RmtHI5Ws2805Method NeoEsp32RmtHI5Ws2814Method;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2811, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Ws2811Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Ws2812xMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Ws2816Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2805, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Ws2805Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedSk6812, NeoEsp32RmtChannel6>  NeoEsp32RmtHI6Sk6812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1814, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Tm1814Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1829, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Tm1829Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1914, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Tm1914Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedApa106, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Apa106Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTx1812, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Tx1812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedGs1903, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Gs1903Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed800Kbps, NeoEsp32RmtChannel6> NeoEsp32RmtHI6800KbpsMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed400Kbps, NeoEsp32RmtChannel6> NeoEsp32RmtHI6400KbpsMethod;
+typedef NeoEsp32RmtHI6Ws2805Method NeoEsp32RmtHI6Ws2814Method;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2811, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Ws2811Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Ws2812xMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2812x, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Ws2816Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedWs2805, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Ws2805Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedSk6812, NeoEsp32RmtChannel7>  NeoEsp32RmtHI7Sk6812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1814, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Tm1814Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1829, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Tm1829Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTm1914, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Tm1914Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedApa106, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Apa106Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedTx1812, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Tx1812Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeedGs1903, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Gs1903Method;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed800Kbps, NeoEsp32RmtChannel7> NeoEsp32RmtHI7800KbpsMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtSpeed400Kbps, NeoEsp32RmtChannel7> NeoEsp32RmtHI7400KbpsMethod;
+typedef NeoEsp32RmtHI7Ws2805Method NeoEsp32RmtHI7Ws2814Method;
+
+#endif // !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32S3)
+#endif // !defined(CONFIG_IDF_TARGET_ESP32C3)
+
+// inverted
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2811, NeoEsp32RmtChannelN> NeoEsp32RmtHINWs2811InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannelN> NeoEsp32RmtHINWs2812xInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannelN> NeoEsp32RmtHINWs2816InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2805, NeoEsp32RmtChannelN> NeoEsp32RmtHINWs2805InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedSk6812, NeoEsp32RmtChannelN> NeoEsp32RmtHINSk6812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1814, NeoEsp32RmtChannelN> NeoEsp32RmtHINTm1814InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1829, NeoEsp32RmtChannelN> NeoEsp32RmtHINTm1829InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1914, NeoEsp32RmtChannelN> NeoEsp32RmtHINTm1914InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedApa106, NeoEsp32RmtChannelN> NeoEsp32RmtHINApa106InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTx1812, NeoEsp32RmtChannelN> NeoEsp32RmtHINTx1812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedGs1903, NeoEsp32RmtChannelN> NeoEsp32RmtHINGs1903InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed800Kbps, NeoEsp32RmtChannelN> NeoEsp32RmtHIN800KbpsInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed400Kbps, NeoEsp32RmtChannelN> NeoEsp32RmtHIN400KbpsInvertedMethod;
+typedef NeoEsp32RmtHINWs2805InvertedMethod NeoEsp32RmtHINWs2814InvertedMethod;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2811, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Ws2811InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Ws2812xInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Ws2816InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2805, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Ws2805InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedSk6812, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Sk6812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1814, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Tm1814InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1829, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Tm1829InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1914, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Tm1914InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedApa106, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Apa106InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTx1812, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Tx1812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedGs1903, NeoEsp32RmtChannel0> NeoEsp32RmtHI0Gs1903InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed800Kbps, NeoEsp32RmtChannel0> NeoEsp32RmtHI0800KbpsInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed400Kbps, NeoEsp32RmtChannel0> NeoEsp32RmtHI0400KbpsInvertedMethod;
+typedef NeoEsp32RmtHI0Ws2805InvertedMethod NeoEsp32RmtHI0Ws2814InvertedMethod;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2811, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Ws2811InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Ws2812xInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Ws2816InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2805, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Ws2805InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedSk6812, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Sk6812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1814, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Tm1814InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1829, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Tm1829InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1914, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Tm1914InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedApa106, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Apa106InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTx1812, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Tx1812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedGs1903, NeoEsp32RmtChannel1> NeoEsp32RmtHI1Gs1903InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed800Kbps, NeoEsp32RmtChannel1> NeoEsp32RmtHI1800KbpsInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed400Kbps, NeoEsp32RmtChannel1> NeoEsp32RmtHI1400KbpsInvertedMethod;
+typedef NeoEsp32RmtHI1Ws2805InvertedMethod NeoEsp32RmtHI1Ws2814InvertedMethod;
+
+#if !defined(CONFIG_IDF_TARGET_ESP32C3)
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2811, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Ws2811InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Ws2812xInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Ws2816InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2805, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Ws2805InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedSk6812, NeoEsp32RmtChannel2>  NeoEsp32RmtHI2Sk6812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1814, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Tm1814InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1829, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Tm1829InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1914, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Tm1914InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedApa106, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Apa106InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTx1812, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Tx1812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedGs1903, NeoEsp32RmtChannel2> NeoEsp32RmtHI2Gs1903InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed800Kbps, NeoEsp32RmtChannel2> NeoEsp32RmtHI2800KbpsInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed400Kbps, NeoEsp32RmtChannel2> NeoEsp32RmtHI2400KbpsInvertedMethod;
+typedef NeoEsp32RmtHI2Ws2805InvertedMethod NeoEsp32RmtHI2Ws2814InvertedMethod;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2811, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Ws2811InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Ws2812xInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2805, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Ws2805InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Ws2816InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedSk6812, NeoEsp32RmtChannel3>  NeoEsp32RmtHI3Sk6812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1814, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Tm1814InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1829, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Tm1829InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1914, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Tm1914InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedApa106, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Apa106InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTx1812, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Tx1812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedGs1903, NeoEsp32RmtChannel3> NeoEsp32RmtHI3Gs1903InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed800Kbps, NeoEsp32RmtChannel3> NeoEsp32RmtHI3800KbpsInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed400Kbps, NeoEsp32RmtChannel3> NeoEsp32RmtHI3400KbpsInvertedMethod;
+typedef NeoEsp32RmtHI3Ws2805InvertedMethod NeoEsp32RmtHI3Ws2814InvertedMethod;
+
+#if !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32S3)
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2811, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Ws2811InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Ws2812xInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Ws2816InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2805, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Ws2805InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedSk6812, NeoEsp32RmtChannel4>  NeoEsp32RmtHI4Sk6812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1814, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Tm1814InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1829, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Tm1829InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1914, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Tm1914InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedApa106, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Apa106InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTx1812, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Tx1812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedGs1903, NeoEsp32RmtChannel4> NeoEsp32RmtHI4Gs1903InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed800Kbps, NeoEsp32RmtChannel4> NeoEsp32RmtHI4800KbpsInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed400Kbps, NeoEsp32RmtChannel4> NeoEsp32RmtHI4400KbpsInvertedMethod;
+typedef NeoEsp32RmtHI4Ws2805InvertedMethod NeoEsp32RmtHI4Ws2814InvertedMethod;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2811, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Ws2811InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Ws2812xInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Ws2816InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2805, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Ws2805InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedSk6812, NeoEsp32RmtChannel5>  NeoEsp32RmtHI5Sk6812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1814, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Tm1814InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1829, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Tm1829InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1914, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Tm1914InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedApa106, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Apa106InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTx1812, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Tx1812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedGs1903, NeoEsp32RmtChannel5> NeoEsp32RmtHI5Gs1903InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed800Kbps, NeoEsp32RmtChannel5> NeoEsp32RmtHI5800KbpsInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed400Kbps, NeoEsp32RmtChannel5> NeoEsp32RmtHI5400KbpsInvertedMethod;
+typedef NeoEsp32RmtHI5Ws2805InvertedMethod NeoEsp32RmtHI5Ws2814InvertedMethod;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2811, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Ws2811InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Ws2812xInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Ws2816InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2805, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Ws2805InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedSk6812, NeoEsp32RmtChannel6>  NeoEsp32RmtHI6Sk6812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1814, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Tm1814InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1829, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Tm1829InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1914, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Tm1914InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedApa106, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Apa106InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTx1812, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Tx1812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedGs1903, NeoEsp32RmtChannel6> NeoEsp32RmtHI6Gs1903InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed800Kbps, NeoEsp32RmtChannel6> NeoEsp32RmtHI6800KbpsInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed400Kbps, NeoEsp32RmtChannel6> NeoEsp32RmtHI6400KbpsInvertedMethod;
+typedef NeoEsp32RmtHI6Ws2805InvertedMethod NeoEsp32RmtHI6Ws2814InvertedMethod;
+
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2811, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Ws2811InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Ws2812xInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2812x, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Ws2816InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedWs2805, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Ws2805InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedSk6812, NeoEsp32RmtChannel7>  NeoEsp32RmtHI7Sk6812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1814, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Tm1814InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1829, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Tm1829InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTm1914, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Tm1914InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedApa106, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Apa106InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedTx1812, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Tx1812InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeedGs1903, NeoEsp32RmtChannel7> NeoEsp32RmtHI7Gs1903InvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed800Kbps, NeoEsp32RmtChannel7> NeoEsp32RmtHI7800KbpsInvertedMethod;
+typedef NeoEsp32RmtHIMethodBase<NeoEsp32RmtInvertedSpeed400Kbps, NeoEsp32RmtChannel7> NeoEsp32RmtHI7400KbpsInvertedMethod;
+typedef NeoEsp32RmtHI7Ws2805InvertedMethod NeoEsp32RmtHI7Ws2814InvertedMethod;
+
+#endif // !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32S3)
+#endif // !defined(CONFIG_IDF_TARGET_ESP32C3)
+
+#endif
@@ -0,0 +1,12 @@
+{
+  "name": "NeoESP32RmtHI",
+  "build": { "libArchive": false },
+  "platforms": ["espressif32"],
+  "dependencies": [
+    {
+      "owner": "makuna",      
+      "name": "NeoPixelBus",
+      "version": "^2.8.3"
+    }
+  ]
+}  
@@ -0,0 +1,263 @@
+/* RMT ISR shim
+ * Bridges from a high-level interrupt to the C++ code.
+ *
+ * This code is largely derived from Espressif's 'hli_vector.S' Bluetooth ISR.
+ *
+ */
+
+#if defined(__XTENSA__) && defined(ESP32) && !defined(CONFIG_BTDM_CTRL_HLI)
+
+#include <freertos/xtensa_context.h>
+#include "sdkconfig.h"
+#include "soc/soc.h"
+
+/* If the Bluetooth driver has hooked the high-priority interrupt, we piggyback on it and don't need this. */
+#ifndef CONFIG_BTDM_CTRL_HLI
+
+/*
+   Select interrupt based on system check level
+   - Base ESP32: could be 4 or 5, depends on platform config
+   - S2: 5
+   - S3: 5
+*/
+
+#if CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL_5
+/* Use level 4 */
+#define RFI_X               4
+#define xt_highintx         xt_highint4
+#else /* !CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL_5 */
+/* Use level 5 */
+#define RFI_X               5
+#define xt_highintx         xt_highint5
+#endif /* CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL_5 */
+
+// Register map, based on interrupt level
+#define EPC_X               (EPC + RFI_X)
+#define EXCSAVE_X           (EXCSAVE + RFI_X)
+
+// The sp mnemonic is used all over in ESP's assembly, though I'm not sure where it's expected to be defined?
+#define sp a1
+
+/* Interrupt stack size, for C code. */
+#define RMT_INTR_STACK_SIZE  512
+
+/* Save area for the CPU state:
+ * - 64 words for the general purpose registers
+ * - 7 words for some of the special registers:
+ *   - WINDOWBASE, WINDOWSTART — only WINDOWSTART is truly needed
+ *   - SAR, LBEG, LEND, LCOUNT — since the C code might use these
+ *   - EPC1 — since the C code might cause window overflow exceptions
+ * This is not laid out as standard exception frame structure
+ * for simplicity of the save/restore code.
+ */
+#define REG_FILE_SIZE         (64 * 4)
+#define SPECREG_OFFSET        REG_FILE_SIZE
+#define SPECREG_SIZE          (7 * 4)
+#define REG_SAVE_AREA_SIZE    (SPECREG_OFFSET + SPECREG_SIZE)
+
+    .data
+_rmt_intr_stack:
+    .space      RMT_INTR_STACK_SIZE
+_rmt_save_ctx:
+    .space      REG_SAVE_AREA_SIZE
+
+    .section .iram1,"ax"
+    .global     xt_highintx
+    .type       xt_highintx,@function
+    .align      4
+
+xt_highintx:
+
+    movi    a0, _rmt_save_ctx
+    /* save 4 lower registers */
+    s32i    a1, a0, 4
+    s32i    a2, a0, 8
+    s32i    a3, a0, 12
+    rsr     a2, EXCSAVE_X  /* holds the value of a0 */
+    s32i    a2, a0, 0
+
+    /* Save special registers */
+    addi    a0, a0, SPECREG_OFFSET
+    rsr     a2, WINDOWBASE
+    s32i    a2, a0, 0
+    rsr     a2, WINDOWSTART
+    s32i    a2, a0, 4
+    rsr     a2, SAR
+    s32i    a2, a0, 8
+    #if XCHAL_HAVE_LOOPS
+    rsr     a2, LBEG
+    s32i    a2, a0, 12
+    rsr     a2, LEND
+    s32i    a2, a0, 16
+    rsr     a2, LCOUNT
+    s32i    a2, a0, 20
+    #endif
+    rsr     a2, EPC1
+    s32i    a2, a0, 24
+
+    /* disable exception mode, window overflow */
+    movi    a0, PS_INTLEVEL(RFI_X+1) | PS_EXCM
+    wsr     a0, PS
+    rsync
+
+    /* Save the remaining physical registers.
+     * 4 registers are already saved, which leaves 60 registers to save.
+     * (FIXME: consider the case when the CPU is configured with physical 32 registers)
+     * These 60 registers are saved in 5 iterations, 12 registers at a time.
+     */
+    movi    a1, 5
+    movi    a3, _rmt_save_ctx + 4 * 4
+
+    /* This is repeated 5 times, each time the window is shifted by 12 registers.
+     * We come here with a1 = downcounter, a3 = save pointer, a2 and a0 unused.
+     */
+1:
+    s32i    a4, a3, 0
+    s32i    a5, a3, 4
+    s32i    a6, a3, 8
+    s32i    a7, a3, 12
+    s32i    a8, a3, 16
+    s32i    a9, a3, 20
+    s32i    a10, a3, 24
+    s32i    a11, a3, 28
+    s32i    a12, a3, 32
+    s32i    a13, a3, 36
+    s32i    a14, a3, 40
+    s32i    a15, a3, 44
+
+    /* We are about to rotate the window, so that a12-a15 will become the new a0-a3.
+     * Copy a0-a3 to a12-15 to still have access to these values.
+     * At the same time we can decrement the counter and adjust the save area pointer
+     */
+
+    /* a0 is constant (_rmt_save_ctx), no need to copy */
+    addi    a13, a1, -1  /* copy and decrement the downcounter */
+    /* a2 is scratch so no need to copy */
+    addi    a15, a3, 48  /* copy and adjust the save area pointer */
+    beqz    a13, 2f      /* have saved all registers ? */
+    rotw    3            /* rotate the window and go back */
+    j       1b
+
+    /* the loop is complete */
+2:
+    rotw 4      /* this brings us back to the original window */
+    /* a0 still points to _rmt_save_ctx */
+
+    /* Can clear WINDOWSTART now, all registers are saved */
+    rsr     a2, WINDOWBASE
+    /* WINDOWSTART = (1 << WINDOWBASE) */
+    movi    a3, 1
+    ssl     a2
+    sll     a3, a3
+    wsr     a3, WINDOWSTART
+
+_highint_stack_switch:
+    movi    a0, 0
+    movi    sp, _rmt_intr_stack + RMT_INTR_STACK_SIZE - 16
+    s32e    a0, sp, -12         /* For GDB: set null SP */
+    s32e    a0, sp, -16         /* For GDB: set null PC */
+    movi    a0, _highint_stack_switch     /* For GDB: cosmetics, for the frame where stack switch happened */
+
+    /* Set up PS for C, disable all interrupts except NMI and debug, and clear EXCM. */
+    movi    a6, PS_INTLEVEL(RFI_X) | PS_UM | PS_WOE
+    wsr     a6, PS
+    rsync
+
+    /* Call C handler */
+    mov     a6, sp
+    call4   NeoEsp32RmtMethodIsr
+
+    l32e    sp, sp, -12                     /* switch back to the original stack */
+
+    /* Done with C handler; re-enable exception mode, disabling window overflow */
+    movi    a2, PS_INTLEVEL(RFI_X+1) | PS_EXCM    /* TOCHECK */
+    wsr     a2, PS
+    rsync
+
+    /* Restore the special registers.
+     * WINDOWSTART will be restored near the end.
+     */
+    movi    a0, _rmt_save_ctx + SPECREG_OFFSET
+    l32i    a2, a0, 8
+    wsr     a2, SAR
+    #if XCHAL_HAVE_LOOPS
+    l32i    a2, a0, 12
+    wsr     a2, LBEG
+    l32i    a2, a0, 16
+    wsr     a2, LEND
+    l32i    a2, a0, 20
+    wsr     a2, LCOUNT
+    #endif
+    l32i    a2, a0, 24
+    wsr     a2, EPC1
+
+    /* Restoring the physical registers.
+     * This is the reverse to the saving process above.
+     */
+
+    /* Rotate back to the final window, then start loading 12 registers at a time,
+     * in 5 iterations.
+     * Again, a1 is the downcounter and a3 is the save area pointer.
+     * After each rotation, a1 and a3 are copied from a13 and a15.
+     * To simplify the loop, we put the initial values into a13 and a15.
+     */
+    rotw     -4
+    movi    a15, _rmt_save_ctx + 64 * 4  /* point to the end of the save area */
+    movi    a13, 5
+
+1:
+    /* Copy a1 and a3 from their previous location,
+     * at the same time decrementing and adjusting the save area pointer.
+     */
+    addi    a1, a13, -1
+    addi    a3, a15, -48
+
+    /* Load 12 registers */
+    l32i    a4, a3, 0
+    l32i    a5, a3, 4
+    l32i    a6, a3, 8
+    l32i    a7, a3, 12
+    l32i    a8, a3, 16
+    l32i    a9, a3, 20
+    l32i    a10, a3, 24
+    l32i    a11, a3, 28                                /* ensure PS and EPC written */
+    l32i    a12, a3, 32
+    l32i    a13, a3, 36
+    l32i    a14, a3, 40
+    l32i    a15, a3, 44
+
+    /* Done with the loop? */
+    beqz    a1, 2f
+    /* If no, rotate the window and repeat */
+    rotw    -3
+    j       1b
+
+2:
+    /* Done with the loop. Only 4 registers (a0-a3 in the original window) remain
+     * to be restored. Also need to restore WINDOWSTART, since all the general
+     * registers are now in place.
+     */
+    movi    a0, _rmt_save_ctx
+
+    l32i    a2, a0, SPECREG_OFFSET + 4
+    wsr     a2, WINDOWSTART
+
+    l32i    a1, a0, 4
+    l32i    a2, a0, 8
+    l32i    a3, a0, 12
+    rsr     a0, EXCSAVE_X  /* holds the value of a0 before the interrupt handler */
+
+    /* Return from the interrupt, restoring PS from EPS_X */
+    rfi     RFI_X
+
+
+/* The linker has no reason to link in this file; all symbols it exports are already defined
+   (weakly!) in the default int handler. Define a symbol here so we can use it to have the
+   linker inspect this anyway. */
+
+    .global ld_include_hli_vectors_rmt
+ld_include_hli_vectors_rmt:
+
+
+#endif // CONFIG_BTDM_CTRL_HLI
+#endif // XTensa
@@ -0,0 +1,507 @@
+/*-------------------------------------------------------------------------
+NeoPixel library helper functions for Esp32.
+
+A BIG thanks to Andreas Merkle for the investigation and implementation of
+a workaround to the GCC bug that drops method attributes from template methods
+
+Written by Michael C. Miller.
+
+I invest time and resources providing this open source code,
+please support me by donating (see https://github.com/Makuna/NeoPixelBus)
+
+-------------------------------------------------------------------------
+This file is part of the Makuna/NeoPixelBus library.
+
+NeoPixelBus is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as
+published by the Free Software Foundation, either version 3 of
+the License, or (at your option) any later version.
+
+NeoPixelBus is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with NeoPixel.  If not, see
+<http://www.gnu.org/licenses/>.
+-------------------------------------------------------------------------*/
+
+#include <Arduino.h>
+
+#if defined(ARDUINO_ARCH_ESP32)
+
+#include <algorithm>  
+#include "esp_idf_version.h"
+#include "NeoEsp32RmtHIMethod.h"
+#include "soc/soc.h"
+#include "soc/rmt_reg.h"
+
+#ifdef __riscv
+#include "riscv/interrupt.h"
+#endif
+
+
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 0, 0)
+#include "hal/rmt_ll.h"
+#else
+/* Shims for older ESP-IDF v3; we can safely assume original ESP32 */
+#include "soc/rmt_struct.h"
+
+// Selected RMT API functions borrowed from ESP-IDF v4.4.8
+// components/hal/esp32/include/hal/rmt_ll.h
+// Copyright 2019 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+__attribute__((always_inline))
+static inline void rmt_ll_tx_reset_pointer(rmt_dev_t *dev, uint32_t channel)
+{
+    dev->conf_ch[channel].conf1.mem_rd_rst = 1;
+    dev->conf_ch[channel].conf1.mem_rd_rst = 0;
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_tx_start(rmt_dev_t *dev, uint32_t channel)
+{
+    dev->conf_ch[channel].conf1.tx_start = 1;
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_tx_stop(rmt_dev_t *dev, uint32_t channel)
+{
+    RMTMEM.chan[channel].data32[0].val = 0;
+    dev->conf_ch[channel].conf1.tx_start = 0;
+    dev->conf_ch[channel].conf1.mem_rd_rst = 1;
+    dev->conf_ch[channel].conf1.mem_rd_rst = 0;
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_tx_enable_pingpong(rmt_dev_t *dev, uint32_t channel, bool enable)
+{
+    dev->apb_conf.mem_tx_wrap_en = enable;
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_tx_enable_loop(rmt_dev_t *dev, uint32_t channel, bool enable)
+{
+    dev->conf_ch[channel].conf1.tx_conti_mode = enable;
+}
+
+__attribute__((always_inline))
+static inline uint32_t rmt_ll_tx_get_channel_status(rmt_dev_t *dev, uint32_t channel)
+{
+    return dev->status_ch[channel];
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_tx_set_limit(rmt_dev_t *dev, uint32_t channel, uint32_t limit)
+{
+    dev->tx_lim_ch[channel].limit = limit;
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_enable_interrupt(rmt_dev_t *dev, uint32_t mask, bool enable)
+{
+    if (enable) {
+        dev->int_ena.val |= mask;
+    } else {
+        dev->int_ena.val &= ~mask;
+    }
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_enable_tx_end_interrupt(rmt_dev_t *dev, uint32_t channel, bool enable)
+{
+    dev->int_ena.val &= ~(1 << (channel * 3));
+    dev->int_ena.val |= (enable << (channel * 3));
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_enable_tx_err_interrupt(rmt_dev_t *dev, uint32_t channel, bool enable)
+{
+    dev->int_ena.val &= ~(1 << (channel * 3 + 2));
+    dev->int_ena.val |= (enable << (channel * 3 + 2));
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_enable_tx_thres_interrupt(rmt_dev_t *dev, uint32_t channel, bool enable)
+{
+    dev->int_ena.val &= ~(1 << (channel + 24));
+    dev->int_ena.val |= (enable << (channel + 24));
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_clear_tx_end_interrupt(rmt_dev_t *dev, uint32_t channel)
+{
+    dev->int_clr.val = (1 << (channel * 3));
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_clear_tx_err_interrupt(rmt_dev_t *dev, uint32_t channel)
+{
+    dev->int_clr.val = (1 << (channel * 3 + 2));
+}
+
+__attribute__((always_inline))
+static inline void rmt_ll_clear_tx_thres_interrupt(rmt_dev_t *dev, uint32_t channel)
+{
+    dev->int_clr.val = (1 << (channel + 24));
+}
+
+
+__attribute__((always_inline))
+static inline uint32_t rmt_ll_get_tx_thres_interrupt_status(rmt_dev_t *dev)
+{
+    uint32_t status =  dev->int_st.val;
+    return (status & 0xFF000000) >> 24;
+}
+#endif
+
+
+// *********************************
+// Select method for binding interrupt
+//
+// - If the Bluetooth driver has registered a high-level interrupt, piggyback on that API
+// - If we're on a modern core, allocate the interrupt with the API (old cores are bugged)
+// - Otherwise use the low-level hardware API to manually bind the interrupt
+
+
+#if defined(CONFIG_BTDM_CTRL_HLI)
+// Espressif's bluetooth driver offers a helpful sharing layer; bring in the interrupt management calls
+#include "hal/interrupt_controller_hal.h"
+extern "C" esp_err_t hli_intr_register(intr_handler_t handler, void* arg, uint32_t intr_reg, uint32_t intr_mask);
+
+#else /* !CONFIG_BTDM_CTRL_HLI*/
+
+// Declare the our high-priority ISR handler
+extern "C" void ld_include_hli_vectors_rmt();   // an object with an address, but no space
+
+#if defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3)
+#include "soc/periph_defs.h"
+#endif
+
+// Select level flag
+#if defined(__riscv)
+// RISCV chips don't block interrupts while scheduling; all we need to do is be higher than the WiFi ISR
+#define INT_LEVEL_FLAG ESP_INTR_FLAG_LEVEL3
+#elif defined(CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL_5)
+#define INT_LEVEL_FLAG ESP_INTR_FLAG_LEVEL4
+#else
+#define INT_LEVEL_FLAG ESP_INTR_FLAG_LEVEL5
+#endif
+
+// ESP-IDF v3 cannot enable high priority interrupts through the API at all;
+// and ESP-IDF v4 on XTensa cannot enable Level 5 due to incorrect interrupt descriptor tables
+#if !defined(__XTENSA__) || (ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)) || ((ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 0, 0) && CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL_5))
+#define NEOESP32_RMT_CAN_USE_INTR_ALLOC
+
+// XTensa cores require the assembly bridge
+#ifdef __XTENSA__
+#define HI_IRQ_HANDLER nullptr
+#define HI_IRQ_HANDLER_ARG ld_include_hli_vectors_rmt
+#else
+#define HI_IRQ_HANDLER NeoEsp32RmtMethodIsr
+#define HI_IRQ_HANDLER_ARG nullptr
+#endif
+
+#else
+/* !CONFIG_BTDM_CTRL_HLI && !NEOESP32_RMT_CAN_USE_INTR_ALLOC */
+// This is the index of the LV5 interrupt vector - see interrupt descriptor table in idf components/hal/esp32/interrupt_descriptor_table.c
+#define ESP32_LV5_IRQ_INDEX 26
+
+#endif  /* NEOESP32_RMT_CAN_USE_INTR_ALLOC */
+#endif  /* CONFIG_BTDM_CTRL_HLI */
+
+
+// RMT driver implementation
+struct NeoEsp32RmtHIChannelState {
+    uint32_t rmtBit0, rmtBit1;
+    uint32_t resetDuration;
+
+    const byte* txDataStart;    // data array
+    const byte* txDataEnd;      // one past end
+    const byte* txDataCurrent;      // current location
+    size_t rmtOffset;
+};
+
+// Global variables
+#if defined(NEOESP32_RMT_CAN_USE_INTR_ALLOC)
+static intr_handle_t isrHandle = nullptr;
+#endif
+
+static NeoEsp32RmtHIChannelState** driverState = nullptr;
+constexpr size_t rmtBatchSize =  RMT_MEM_ITEM_NUM / 2;
+
+// Fill the RMT buffer memory
+// This is implemented using many arguments instead of passing the structure object to ensure we do only one lookup
+// All the arguments are passed in registers, so they don't need to be looked up again
+static void IRAM_ATTR RmtFillBuffer(uint8_t channel, const byte** src_ptr, const byte* end, uint32_t bit0, uint32_t bit1, size_t* offset_ptr, size_t reserve) {
+    // We assume that (rmtToWrite % 8) == 0
+    size_t rmtToWrite = rmtBatchSize - reserve;
+    rmt_item32_t* dest =(rmt_item32_t*)  &RMTMEM.chan[channel].data32[*offset_ptr + reserve]; // write directly in to RMT memory
+    const byte* psrc = *src_ptr;
+
+    *offset_ptr ^= rmtBatchSize;
+
+    if (psrc != end) {
+        while (rmtToWrite > 0) {
+            uint8_t data = *psrc;
+            for (uint8_t bit = 0; bit < 8; bit++)
+            {
+                dest->val = (data & 0x80) ? bit1 : bit0;
+                dest++;
+                data <<= 1;
+            }
+            rmtToWrite -= 8;
+            psrc++;
+
+            if (psrc == end) {
+                break;
+            }
+        }
+
+        *src_ptr = psrc;
+    }
+
+    if (rmtToWrite > 0) {
+        // Add end event
+        rmt_item32_t bit0_val = {{.val = bit0 }};
+        *dest = rmt_item32_t {{{ .duration0 = 0, .level0 = bit0_val.level1, .duration1 = 0, .level1 = bit0_val.level1 }}};
+    }
+}
+
+static void IRAM_ATTR RmtStartWrite(uint8_t channel, NeoEsp32RmtHIChannelState& state) {
+    // Reset context state
+    state.rmtOffset = 0;
+
+    // Fill the first part of the buffer with a reset event
+    // FUTURE: we could do timing analysis with the last interrupt on this channel
+    // Use 8 words to stay aligned with the buffer fill logic
+    rmt_item32_t bit0_val = {{.val = state.rmtBit0 }};
+    rmt_item32_t fill = {{{ .duration0 = 100, .level0 = bit0_val.level1, .duration1 = 100, .level1 = bit0_val.level1 }}};
+    rmt_item32_t* dest = (rmt_item32_t*) &RMTMEM.chan[channel].data32[0];
+    for (auto i = 0; i < 7; ++i) dest[i] = fill;
+    fill.duration1 = state.resetDuration > 1400 ? (state.resetDuration - 1400) : 100;
+    dest[7] = fill;
+
+    // Fill the remaining buffer with real data
+    RmtFillBuffer(channel, &state.txDataCurrent, state.txDataEnd, state.rmtBit0, state.rmtBit1, &state.rmtOffset, 8);
+    RmtFillBuffer(channel, &state.txDataCurrent, state.txDataEnd, state.rmtBit0, state.rmtBit1, &state.rmtOffset, 0);
+
+    // Start operation
+    rmt_ll_clear_tx_thres_interrupt(&RMT, channel);
+    rmt_ll_tx_reset_pointer(&RMT, channel);
+    rmt_ll_tx_start(&RMT, channel);
+}
+
+extern "C" void IRAM_ATTR NeoEsp32RmtMethodIsr(void *arg) {
+    // Tx threshold interrupt
+    uint32_t status = rmt_ll_get_tx_thres_interrupt_status(&RMT);
+    while (status) {
+        uint8_t channel = __builtin_ffs(status) - 1;                
+        if (driverState[channel]) {            
+            // Normal case
+            NeoEsp32RmtHIChannelState& state = *driverState[channel];
+            RmtFillBuffer(channel, &state.txDataCurrent, state.txDataEnd, state.rmtBit0, state.rmtBit1, &state.rmtOffset, 0);
+        } else {
+            // Danger - another driver got invoked?
+            rmt_ll_tx_stop(&RMT, channel);
+        }
+        rmt_ll_clear_tx_thres_interrupt(&RMT, channel);
+        status = rmt_ll_get_tx_thres_interrupt_status(&RMT);
+    }
+};
+
+// Wrapper around the register analysis defines
+// For all currently supported chips, this is constant for all channels; but this is not true of *all* ESP32
+static inline bool _RmtStatusIsTransmitting(rmt_channel_t channel, uint32_t status) {
+    uint32_t v;
+    switch(channel) {
+#ifdef RMT_STATE_CH0        
+        case 0: v = (status >> RMT_STATE_CH0_S) & RMT_STATE_CH0_V; break;
+#endif
+#ifdef RMT_STATE_CH1
+        case 1: v = (status >> RMT_STATE_CH1_S) & RMT_STATE_CH1_V; break;
+#endif
+#ifdef RMT_STATE_CH2
+        case 2: v = (status >> RMT_STATE_CH2_S) & RMT_STATE_CH2_V; break;
+#endif
+#ifdef RMT_STATE_CH3        
+        case 3: v = (status >> RMT_STATE_CH3_S) & RMT_STATE_CH3_V; break;
+#endif        
+#ifdef RMT_STATE_CH4
+        case 4: v = (status >> RMT_STATE_CH4_S) & RMT_STATE_CH4_V; break;
+#endif
+#ifdef RMT_STATE_CH5
+        case 5: v = (status >> RMT_STATE_CH5_S) & RMT_STATE_CH5_V; break;
+#endif
+#ifdef RMT_STATE_CH6
+        case 6: v = (status >> RMT_STATE_CH6_S) & RMT_STATE_CH6_V; break;
+#endif
+#ifdef RMT_STATE_CH7
+        case 7: v = (status >> RMT_STATE_CH7_S) & RMT_STATE_CH7_V; break;
+#endif
+        default: v = 0;
+    }
+
+    return v != 0;
+}
+
+
+esp_err_t NeoEsp32RmtHiMethodDriver::Install(rmt_channel_t channel, uint32_t rmtBit0, uint32_t rmtBit1, uint32_t reset) {
+    // Validate channel number
+    if (channel >= RMT_CHANNEL_MAX) {
+        return ESP_ERR_INVALID_ARG;
+    }
+
+    esp_err_t err = ESP_OK;
+    if (!driverState) {
+        // First time init
+        driverState = reinterpret_cast<NeoEsp32RmtHIChannelState**>(heap_caps_calloc(RMT_CHANNEL_MAX, sizeof(NeoEsp32RmtHIChannelState*), MALLOC_CAP_INTERNAL));
+        if (!driverState) return ESP_ERR_NO_MEM;
+        
+        // Ensure all interrupts are cleared before binding
+        RMT.int_ena.val = 0;
+        RMT.int_clr.val = 0xFFFFFFFF;
+
+        // Bind interrupt handler
+#if defined(CONFIG_BTDM_CTRL_HLI)
+        // Bluetooth driver has taken the empty high-priority interrupt.  Fortunately, it allows us to
+        // hook up another handler.
+        err = hli_intr_register(NeoEsp32RmtMethodIsr, nullptr, (uintptr_t) &RMT.int_st, 0xFF000000);
+        // 25 is the magic number of the bluetooth ISR on ESP32 - see soc/soc.h.
+        intr_matrix_set(cpu_hal_get_core_id(), ETS_RMT_INTR_SOURCE, 25);
+        intr_cntrl_ll_enable_interrupts(1<<25);
+#elif defined(NEOESP32_RMT_CAN_USE_INTR_ALLOC)
+        // Use the platform code to allocate the interrupt
+        // If we need the additional assembly bridge, we pass it as the "arg" to the IDF so it gets linked in       
+        err = esp_intr_alloc(ETS_RMT_INTR_SOURCE, INT_LEVEL_FLAG | ESP_INTR_FLAG_IRAM, HI_IRQ_HANDLER, (void*) HI_IRQ_HANDLER_ARG, &isrHandle);
+        //err = ESP_ERR_NOT_FINISHED;
+#else
+        // Broken IDF API does not allow us to reserve the interrupt; do it manually
+        static volatile const void*  __attribute__((used)) pleaseLinkAssembly = (void*) ld_include_hli_vectors_rmt;
+        intr_matrix_set(xPortGetCoreID(), ETS_RMT_INTR_SOURCE, ESP32_LV5_IRQ_INDEX);
+        ESP_INTR_ENABLE(ESP32_LV5_IRQ_INDEX);
+#endif
+
+        if (err != ESP_OK) {
+            heap_caps_free(driverState);
+            driverState = nullptr;
+            return err;
+        }
+    }
+
+    if (driverState[channel] != nullptr) {
+        return ESP_ERR_INVALID_STATE;   // already in use
+    }
+
+    NeoEsp32RmtHIChannelState* state = reinterpret_cast<NeoEsp32RmtHIChannelState*>(heap_caps_calloc(1, sizeof(NeoEsp32RmtHIChannelState), MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT));
+    if (state == nullptr) {
+        return ESP_ERR_NO_MEM;
+    }
+
+    // Store timing information
+    state->rmtBit0 = rmtBit0;
+    state->rmtBit1 = rmtBit1;
+    state->resetDuration = reset;
+
+    // Initialize hardware
+    rmt_ll_tx_stop(&RMT, channel);
+    rmt_ll_tx_reset_pointer(&RMT, channel);
+    rmt_ll_enable_tx_err_interrupt(&RMT, channel, false);
+    rmt_ll_enable_tx_end_interrupt(&RMT, channel, false);
+    rmt_ll_enable_tx_thres_interrupt(&RMT, channel, false);
+    rmt_ll_clear_tx_err_interrupt(&RMT, channel);
+    rmt_ll_clear_tx_end_interrupt(&RMT, channel);
+    rmt_ll_clear_tx_thres_interrupt(&RMT, channel);
+    
+    rmt_ll_tx_enable_loop(&RMT, channel, false);
+    rmt_ll_tx_enable_pingpong(&RMT, channel, true);
+    rmt_ll_tx_set_limit(&RMT, channel, rmtBatchSize);
+
+    driverState[channel] = state;
+
+    rmt_ll_enable_tx_thres_interrupt(&RMT, channel, true);
+
+    return err;
+}
+
+esp_err_t  NeoEsp32RmtHiMethodDriver::Uninstall(rmt_channel_t channel) {
+    if ((channel >= RMT_CHANNEL_MAX) || !driverState || !driverState[channel]) return ESP_ERR_INVALID_ARG;
+
+    NeoEsp32RmtHIChannelState* state = driverState[channel];
+
+    WaitForTxDone(channel, 10000 / portTICK_PERIOD_MS);
+
+    // Done or not, we're out of here
+    rmt_ll_tx_stop(&RMT, channel);
+    rmt_ll_enable_tx_thres_interrupt(&RMT, channel, false);
+    driverState[channel] = nullptr;
+    heap_caps_free(state);
+
+#if !defined(CONFIG_BTDM_CTRL_HLI)  /* Cannot unbind from bluetooth ISR */
+    // Turn off the driver ISR and release global state if none are left
+    for (uint8_t channelIndex = 0; channelIndex < RMT_CHANNEL_MAX; ++channelIndex) {
+        if (driverState[channelIndex]) return ESP_OK; // done
+    }
+
+#if defined(NEOESP32_RMT_CAN_USE_INTR_ALLOC)
+    esp_intr_free(isrHandle);
+#else
+    ESP_INTR_DISABLE(ESP32_LV5_IRQ_INDEX);
+#endif
+
+    heap_caps_free(driverState);
+    driverState = nullptr;
+#endif /* !defined(CONFIG_BTDM_CTRL_HLI) */
+
+    return ESP_OK;
+}
+
+esp_err_t  NeoEsp32RmtHiMethodDriver::Write(rmt_channel_t channel, const uint8_t *src, size_t src_size) {
+    if ((channel >= RMT_CHANNEL_MAX) || !driverState || !driverState[channel]) return ESP_ERR_INVALID_ARG;
+
+    NeoEsp32RmtHIChannelState& state = *driverState[channel];
+    esp_err_t result = WaitForTxDone(channel, 10000 / portTICK_PERIOD_MS);
+
+    if (result == ESP_OK) {
+        state.txDataStart = src;
+        state.txDataCurrent = src;
+        state.txDataEnd = src + src_size;
+        RmtStartWrite(channel, state);
+    }
+    return result;
+}
+
+esp_err_t NeoEsp32RmtHiMethodDriver::WaitForTxDone(rmt_channel_t channel, TickType_t wait_time) {
+    if ((channel >= RMT_CHANNEL_MAX) || !driverState || !driverState[channel]) return ESP_ERR_INVALID_ARG;
+
+    NeoEsp32RmtHIChannelState& state = *driverState[channel];
+    // yield-wait until wait_time
+    esp_err_t rv = ESP_OK;
+    uint32_t status;
+    while(1) {
+        status = rmt_ll_tx_get_channel_status(&RMT, channel);
+        if (!_RmtStatusIsTransmitting(channel, status)) break;
+        if (wait_time == 0) { rv = ESP_ERR_TIMEOUT; break; };
+
+        TickType_t sleep = std::min(wait_time, (TickType_t) 5);
+        vTaskDelay(sleep);
+        wait_time -= sleep;
+    };
+
+    return rv;
+}
+
+#endif
@@ -1,12 +1,12 @@
 {
  "name": "wled",
-  "version": "0.15.1",
+  "version": "0.15.2-beta2",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "wled",
-      "version": "0.15.1",
+      "version": "0.15.2-beta2",
      "license": "ISC",
      "dependencies": {
        "clean-css": "^5.3.3",
@@ -1,6 +1,6 @@
 {
  "name": "wled",
-  "version": "0.15.1",
+  "version": "0.15.2-beta2",
  "description": "Tools for WLED project",
  "main": "tools/cdata.js",
  "directories": {
@@ -2,6 +2,7 @@ Import('env')
 import os
 import shutil
 import gzip
+import json

 OUTPUT_DIR = "build_output{}".format(os.path.sep)
 #OUTPUT_DIR = os.path.join("build_output")
@@ -22,7 +23,8 @@ def create_release(source):
    release_name_def = _get_cpp_define_value(env, "WLED_RELEASE_NAME")
    if release_name_def:
        release_name = release_name_def.replace("\\\"", "")
-        version = _get_cpp_define_value(env, "WLED_VERSION")
+        with open("package.json", "r") as package:
+            version = json.load(package)["version"]        
        release_file = os.path.join(OUTPUT_DIR, "release", f"WLED_{version}_{release_name}.bin")
        release_gz_file = release_file + ".gz"
        print(f"Copying {source} to {release_file}")
@@ -0,0 +1,116 @@
+Import('env')
+import subprocess
+import json
+import re
+
+def get_github_repo():
+    """Extract GitHub repository name from git remote URL.
+    
+    Uses the remote that the current branch tracks, falling back to 'origin'.
+    This handles cases where repositories have multiple remotes or where the
+    main remote is not named 'origin'.
+    
+    Returns:
+        str: Repository name in 'owner/repo' format for GitHub repos,
+             'unknown' for non-GitHub repos, missing git CLI, or any errors.
+    """
+    try:
+        remote_name = 'origin'  # Default fallback
+        
+        # Try to get the remote for the current branch
+        try:
+            # Get current branch name
+            branch_result = subprocess.run(['git', 'rev-parse', '--abbrev-ref', 'HEAD'], 
+                                         capture_output=True, text=True, check=True)
+            current_branch = branch_result.stdout.strip()
+            
+            # Get the remote for the current branch
+            remote_result = subprocess.run(['git', 'config', f'branch.{current_branch}.remote'], 
+                                         capture_output=True, text=True, check=True)
+            tracked_remote = remote_result.stdout.strip()
+            
+            # Use the tracked remote if we found one
+            if tracked_remote:
+                remote_name = tracked_remote
+        except subprocess.CalledProcessError:
+            # If branch config lookup fails, continue with 'origin' as fallback
+            pass
+        
+        # Get the remote URL for the determined remote
+        result = subprocess.run(['git', 'remote', 'get-url', remote_name], 
+                              capture_output=True, text=True, check=True)
+        remote_url = result.stdout.strip()
+        
+        # Check if it's a GitHub URL
+        if 'github.com' not in remote_url.lower():
+            return None
+        
+        # Parse GitHub URL patterns:
+        # https://github.com/owner/repo.git
+        # git@github.com:owner/repo.git
+        # https://github.com/owner/repo
+        
+        # Remove .git suffix if present
+        if remote_url.endswith('.git'):
+            remote_url = remote_url[:-4]
+        
+        # Handle HTTPS URLs
+        https_match = re.search(r'github\.com/([^/]+/[^/]+)', remote_url, re.IGNORECASE)
+        if https_match:
+            return https_match.group(1)
+        
+        # Handle SSH URLs
+        ssh_match = re.search(r'github\.com:([^/]+/[^/]+)', remote_url, re.IGNORECASE)
+        if ssh_match:
+            return ssh_match.group(1)
+        
+        return None
+        
+    except FileNotFoundError:
+        # Git CLI is not installed or not in PATH
+        return None
+    except subprocess.CalledProcessError:
+        # Git command failed (e.g., not a git repo, no remote, etc.)
+        return None
+    except Exception:
+        # Any other unexpected error
+        return None
+
+# WLED version is managed by package.json; this is picked up in several places
+# - It's integrated in to the UI code
+# - Here, for wled_metadata.cpp
+# - The output_bins script
+# We always take it from package.json to ensure consistency
+with open("package.json", "r") as package:
+    WLED_VERSION = json.load(package)["version"]
+
+def has_def(cppdefs, name):
+    """ Returns true if a given name is set in a CPPDEFINES collection """
+    for f in cppdefs:
+        if isinstance(f, tuple):
+            f = f[0]
+        if f == name:
+            return True
+    return False
+
+
+def add_wled_metadata_flags(env, node):    
+    cdefs = env["CPPDEFINES"].copy()
+
+    if not has_def(cdefs, "WLED_REPO"):
+        repo = get_github_repo()
+        if repo:
+            cdefs.append(("WLED_REPO", f"\\\"{repo}\\\""))
+
+    cdefs.append(("WLED_VERSION", WLED_VERSION))
+
+    # This transforms the node in to a Builder; it cannot be modified again
+    return env.Object(
+        node,
+        CPPDEFINES=cdefs
+    )
+   
+env.AddBuildMiddleware(
+    add_wled_metadata_flags,
+    "*/wled_metadata.cpp"
+)
@@ -1,8 +0,0 @@
-Import('env')
-import json
-
-PACKAGE_FILE = "package.json"
-
-with open(PACKAGE_FILE, "r") as package:
-    version = json.load(package)["version"]
-    env.Append(BUILD_FLAGS=[f"-DWLED_VERSION={version}"])
@@ -110,7 +110,7 @@ ldscript_4m1m = eagle.flash.4m1m.ld

 [scripts_defaults]
 extra_scripts =
-  pre:pio-scripts/set_version.py
+  pre:pio-scripts/set_metadata.py
  post:pio-scripts/output_bins.py
  post:pio-scripts/strip-floats.py
  pre:pio-scripts/user_config_copy.py
@@ -139,8 +139,7 @@ lib_deps =
    fastled/FastLED @ 3.6.0
    IRremoteESP8266 @ 2.8.2
    makuna/NeoPixelBus @ 2.8.3
-    #https://github.com/makuna/NeoPixelBus.git#CoreShaderBeta
-    https://github.com/Aircoookie/ESPAsyncWebServer.git#v2.2.1
+    https://github.com/Aircoookie/ESPAsyncWebServer.git#v2.4.2
  # for I2C interface
    ;Wire
  # ESP-NOW library
@@ -248,6 +247,7 @@ build_flags = -g
  -DARDUINO_ARCH_ESP32
  #-DCONFIG_LITTLEFS_FOR_IDF_3_2
  -D CONFIG_ASYNC_TCP_USE_WDT=0
+  -D CONFIG_ASYNC_TCP_STACK_SIZE=8192
  #use LITTLEFS library by lorol in ESP32 core 1.x.x instead of built-in in 2.x.x
  -D LOROL_LITTLEFS
  ; -DARDUINO_USB_CDC_ON_BOOT=0 ;; this flag is mandatory for "classic ESP32" when building with arduino-esp32 >=2.0.3
@@ -259,7 +259,7 @@ large_partitions = tools/WLED_ESP32_8MB.csv
 extreme_partitions = tools/WLED_ESP32_16MB_9MB_FS.csv
 lib_deps =
  https://github.com/lorol/LITTLEFS.git
-  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
+  esp32async/AsyncTCP @ 3.4.7
  ${env.lib_deps}
 # additional build flags for audioreactive
 AR_build_flags = -D USERMOD_AUDIOREACTIVE 
@@ -273,17 +273,18 @@ board_build.partitions = ${esp32.default_partitions}   ;; default partioning for
 ;;
 ;; please note that you can NOT update existing ESP32 installs with a "V4" build. Also updating by OTA will not work properly.
 ;; 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)
+platform = https://github.com/tasmota/platform-espressif32/releases/download/2023.06.02/platform-espressif32.zip ;; Tasmota Arduino Core 2.0.9 with IPv6 support, based on IDF 4.4.4
+platform_packages =
 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
  -D CONFIG_ASYNC_TCP_USE_WDT=0
+  -D CONFIG_ASYNC_TCP_STACK_SIZE=8192
  -DARDUINO_USB_CDC_ON_BOOT=0 ;; this flag is mandatory for "classic ESP32" when building with arduino-esp32 >=2.0.3
  -D WLED_ENABLE_DMX_INPUT
 lib_deps =
-  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
+  esp32async/AsyncTCP @ 3.4.7
  https://github.com/someweisguy/esp_dmx.git#47db25d
  ${env.lib_deps}
 board_build.partitions = ${esp32.default_partitions}   ;; default partioning for 4MB Flash - can be overridden in build envs
@@ -298,13 +299,14 @@ build_flags = -g
  -DARDUINO_ARCH_ESP32S2
  -DCONFIG_IDF_TARGET_ESP32S2=1
  -D CONFIG_ASYNC_TCP_USE_WDT=0
+  -D CONFIG_ASYNC_TCP_STACK_SIZE=8192
  -DARDUINO_USB_MSC_ON_BOOT=0 -DARDUINO_USB_DFU_ON_BOOT=0
  -DCO
  -DARDUINO_USB_MODE=0 ;; this flag is mandatory for ESP32-S2 !
  ;; please make sure that the following flags are properly set (to 0 or 1) by your board.json, or included in your custom platformio_override.ini entry:
  ;; ARDUINO_USB_CDC_ON_BOOT
 lib_deps =
-  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
+  esp32async/AsyncTCP @ 3.4.7
  ${env.lib_deps}
 board_build.partitions = ${esp32.default_partitions}   ;; default partioning for 4MB Flash - can be overridden in build envs

@@ -318,12 +320,13 @@ build_flags = -g
  -DARDUINO_ARCH_ESP32C3
  -DCONFIG_IDF_TARGET_ESP32C3=1
  -D CONFIG_ASYNC_TCP_USE_WDT=0
+  -D CONFIG_ASYNC_TCP_STACK_SIZE=8192
  -DCO
  -DARDUINO_USB_MODE=1 ;; this flag is mandatory for ESP32-C3
  ;; please make sure that the following flags are properly set (to 0 or 1) by your board.json, or included in your custom platformio_override.ini entry:
  ;; ARDUINO_USB_CDC_ON_BOOT
 lib_deps =
-  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
+  esp32async/AsyncTCP @ 3.4.7
  ${env.lib_deps}
 board_build.partitions = ${esp32.default_partitions}   ;; default partioning for 4MB Flash - can be overridden in build envs

@@ -338,12 +341,13 @@ build_flags = -g
  -DARDUINO_ARCH_ESP32S3
  -DCONFIG_IDF_TARGET_ESP32S3=1
  -D CONFIG_ASYNC_TCP_USE_WDT=0
+  -D CONFIG_ASYNC_TCP_STACK_SIZE=8192
  -DARDUINO_USB_MSC_ON_BOOT=0 -DARDUINO_DFU_ON_BOOT=0
  -DCO
  ;; please make sure that the following flags are properly set (to 0 or 1) by your board.json, or included in your custom platformio_override.ini entry:
  ;; ARDUINO_USB_MODE, ARDUINO_USB_CDC_ON_BOOT
 lib_deps =
-  https://github.com/pbolduc/AsyncTCP.git @ 1.2.0
+  esp32async/AsyncTCP @ 3.4.7
  ${env.lib_deps}
 board_build.partitions = ${esp32.large_partitions}   ;; default partioning for 8MB flash - can be overridden in build envs

@@ -445,6 +449,8 @@ lib_deps = ${esp32_idf_V4.lib_deps}
  ${esp32.AR_lib_deps}
 monitor_filters = esp32_exception_decoder
 board_build.partitions = ${esp32.default_partitions}
+board_build.flash_mode = dio
+upload_speed = 921600

 [env:esp32dev_8M]
 board = esp32dev
@@ -644,6 +650,7 @@ build_flags = ${common.build_flags} ${esp32s2.build_flags} -D WLED_RELEASE_NAME=
  -DLOLIN_WIFI_FIX ; seems to work much better with this
  -D WLED_WATCHDOG_TIMEOUT=0
  -D CONFIG_ASYNC_TCP_USE_WDT=0
+  -D CONFIG_ASYNC_TCP_STACK_SIZE=8192
  -D DATA_PINS=16
  -D HW_PIN_SCL=35
  -D HW_PIN_SDA=33
@@ -370,12 +370,6 @@ const char PAGE_dmxmap[] PROGMEM = R"=====()=====";
      name: "PAGE_update",
      method: "gzip",
      filter: "html-minify",
-      mangle: (str) =>
-        str
-          .replace(
-            /function GetV().*\<\/script\>/gms,
-            "</script><script src=\"/settings/s.js?p=9\"></script>"
-          )
    },
    {
      file: "welcome.htm",
@@ -580,7 +580,7 @@ uint16_t mode_twinkle(void) {
    SEGENV.step = it;
  }

-  unsigned PRNG16 = SEGENV.aux1;
+  uint16_t PRNG16 = SEGENV.aux1;

  for (unsigned i = 0; i < SEGENV.aux0; i++)
  {
@@ -1646,8 +1646,8 @@ static const char _data_FX_MODE_TRICOLOR_WIPE[] PROGMEM = "Tri Wipe@!;1,2,3;!";
 * Modified by Aircoookie
 */
 uint16_t mode_tricolor_fade(void) {
-  unsigned counter = strip.now * ((SEGMENT.speed >> 3) +1);
-  uint16_t prog = (counter * 768) >> 16;
+  uint16_t counter = strip.now * ((SEGMENT.speed >> 3) +1);
+  uint32_t prog = (counter * 768) >> 16;

  uint32_t color1 = 0, color2 = 0;
  unsigned stage = 0;
@@ -3913,7 +3913,7 @@ uint16_t mode_percent(void) {

 	return FRAMETIME;
 }
-static const char _data_FX_MODE_PERCENT[] PROGMEM = "Percent@,% of fill,,,,One color;!,!;!";
+static const char _data_FX_MODE_PERCENT[] PROGMEM = "Percent@!,% of fill,,,,One color;!,!;!";


 /*
@@ -486,8 +486,8 @@ void Segment::setGeometry(uint16_t i1, uint16_t i2, uint8_t grp, uint8_t spc, ui
  if (ofs < UINT16_MAX) offset = ofs;

  DEBUG_PRINTF_P(PSTR("Segment geometry: %d,%d -> %d,%d\n"), (int)i1, (int)i2, (int)i1Y, (int)i2Y);
-  markForReset();
  if (boundsUnchanged) return;
+  markForReset();

  // apply change immediately
  if (i2 <= i1) { //disable segment
@@ -244,53 +244,61 @@
  typedef NeoEsp32I2s1Tm1914Method X1Tm1914Method;
 #endif

+// RMT driver selection
+#if !defined(WLED_USE_SHARED_RMT)  && !defined(__riscv)
+#include <NeoEsp32RmtHIMethod.h>
+#define NeoEsp32RmtMethod(x) NeoEsp32RmtHIN ## x ## Method
+#else
+#define NeoEsp32RmtMethod(x) NeoEsp32RmtN ## x ## Method
+#endif
+
 //RGB
-#define B_32_RN_NEO_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32RmtNWs2812xMethod, NeoGammaNullMethod> // ESP32, S2, S3, C3
+#define B_32_RN_NEO_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32RmtMethod(Ws2812x), 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_RN_NEO_4 NeoPixelBusLg<NeoGrbwFeature, NeoEsp32RmtMethod(Sk6812), NeoGammaNullMethod>
 #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_RN_400_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32RmtMethod(400Kbps), NeoGammaNullMethod>
 #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_RN_TM1_4 NeoPixelBusLg<NeoWrgbTm1814Feature, NeoEsp32RmtMethod(Tm1814), NeoGammaNullMethod>
 #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_RN_TM2_3 NeoPixelBusLg<NeoBrgFeature, NeoEsp32RmtMethod(Tm1829), NeoGammaNullMethod>
 #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_RN_UCS_3 NeoPixelBusLg<NeoRgbUcs8903Feature, NeoEsp32RmtMethod(Ws2812x), NeoGammaNullMethod>
 #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_RN_UCS_4 NeoPixelBusLg<NeoRgbwUcs8904Feature, NeoEsp32RmtMethod(Ws2812x), NeoGammaNullMethod>
 #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_RN_APA106_3 NeoPixelBusLg<NeoGrbFeature, NeoEsp32RmtMethod(Apa106), NeoGammaNullMethod>
 #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_RN_FW6_5 NeoPixelBusLg<NeoGrbcwxFeature, NeoEsp32RmtMethod(Ws2812x), NeoGammaNullMethod>
 #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_RN_2805_5 NeoPixelBusLg<NeoGrbwwFeature, NeoEsp32RmtMethod(Ws2805), NeoGammaNullMethod>
 #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_RN_TM1914_3 NeoPixelBusLg<NeoGrbTm1914Feature, NeoEsp32RmtMethod(Tm1914), NeoGammaNullMethod>
 #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_RN_SM16825_5 NeoPixelBusLg<NeoRgbcwSm16825eFeature, NeoEsp32RmtMethod(Ws2812x), NeoGammaNullMethod>
 #define B_32_I2_SM16825_5 NeoPixelBusLg<NeoRgbcwSm16825eFeature, X1Ws2812xMethod, NeoGammaNullMethod>
 #define B_32_IP_SM16825_5 NeoPixelBusLg<NeoRgbcwSm16825eFeature, X8Ws2812xMethod, NeoGammaNullMethod> // parallel I2S
 #endif
@@ -1209,54 +1217,54 @@ class PolyBus {
    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_U0_NEO_3: size = (static_cast<B_8266_U0_NEO_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_NEO_3: size = (static_cast<B_8266_U1_NEO_3*>(busPtr))->PixelsSize(); 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_BB_NEO_3: size = (static_cast<B_8266_BB_NEO_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_NEO_4: size = (static_cast<B_8266_U0_NEO_4*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_NEO_4: size = (static_cast<B_8266_U1_NEO_4*>(busPtr))->PixelsSize(); 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_BB_NEO_4: size = (static_cast<B_8266_BB_NEO_4*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_400_3: size = (static_cast<B_8266_U0_400_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_400_3: size = (static_cast<B_8266_U1_400_3*>(busPtr))->PixelsSize(); 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_BB_400_3: size = (static_cast<B_8266_BB_400_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_TM1_4: size = (static_cast<B_8266_U0_TM1_4*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_TM1_4: size = (static_cast<B_8266_U1_TM1_4*>(busPtr))->PixelsSize(); 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_BB_TM1_4: size = (static_cast<B_8266_BB_TM1_4*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_TM2_3: size = (static_cast<B_8266_U0_TM2_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_TM2_3: size = (static_cast<B_8266_U1_TM2_3*>(busPtr))->PixelsSize(); 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_BB_TM2_3: size = (static_cast<B_8266_BB_TM2_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_UCS_3: size = (static_cast<B_8266_U0_UCS_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_UCS_3: size = (static_cast<B_8266_U1_UCS_3*>(busPtr))->PixelsSize(); 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_BB_UCS_3: size = (static_cast<B_8266_BB_UCS_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_UCS_4: size = (static_cast<B_8266_U0_UCS_4*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_UCS_4: size = (static_cast<B_8266_U1_UCS_4*>(busPtr))->PixelsSize(); 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_BB_UCS_4: size = (static_cast<B_8266_BB_UCS_4*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_APA106_3: size = (static_cast<B_8266_U0_APA106_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_APA106_3: size = (static_cast<B_8266_U1_APA106_3*>(busPtr))->PixelsSize(); 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_BB_APA106_3: size = (static_cast<B_8266_BB_APA106_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_FW6_5: size = (static_cast<B_8266_U0_FW6_5*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_FW6_5: size = (static_cast<B_8266_U1_FW6_5*>(busPtr))->PixelsSize(); 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_BB_FW6_5: size = (static_cast<B_8266_BB_FW6_5*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_2805_5: size = (static_cast<B_8266_U0_2805_5*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_2805_5: size = (static_cast<B_8266_U1_2805_5*>(busPtr))->PixelsSize(); 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_BB_2805_5: size = (static_cast<B_8266_BB_2805_5*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_TM1914_3: size = (static_cast<B_8266_U0_TM1914_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_TM1914_3: size = (static_cast<B_8266_U1_TM1914_3*>(busPtr))->PixelsSize(); 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_BB_TM1914_3: size = (static_cast<B_8266_BB_TM1914_3*>(busPtr))->PixelsSize(); break;
+      case I_8266_U0_SM16825_5: size = (static_cast<B_8266_U0_SM16825_5*>(busPtr))->PixelsSize(); break;
+      case I_8266_U1_SM16825_5: size = (static_cast<B_8266_U1_SM16825_5*>(busPtr))->PixelsSize(); 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;
+      case I_8266_BB_SM16825_5: size = (static_cast<B_8266_BB_SM16825_5*>(busPtr))->PixelsSize(); break;
    #endif
    #ifdef ARDUINO_ARCH_ESP32
      // RMT buses (front + back + small system managed RMT)
@@ -1308,68 +1316,65 @@ class PolyBus {
      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_U0_NEO_4    : // fallthrough
+      case I_8266_U1_NEO_4    : // fallthrough
+      case I_8266_BB_NEO_4    : // fallthrough
+      case I_8266_U0_TM1_4    : // fallthrough
+      case I_8266_U1_TM1_4    : // fallthrough
+      case I_8266_BB_TM1_4    : size = (size + count);       break; // 4 channels
+      case I_8266_U0_UCS_3    : // fallthrough
+      case I_8266_U1_UCS_3    : // fallthrough
+      case I_8266_BB_UCS_3    : size *= 2;                   break; // 16 bit
+      case I_8266_U0_UCS_4    : // fallthrough
+      case I_8266_U1_UCS_4    : // fallthrough
+      case I_8266_BB_UCS_4    : size = (size + count)*2;     break; // 16 bit 4 channels
+      case I_8266_U0_FW6_5    : // fallthrough
+      case I_8266_U1_FW6_5    : // fallthrough
+      case I_8266_BB_FW6_5    : // fallthrough
+      case I_8266_U0_2805_5   : // fallthrough
+      case I_8266_U1_2805_5   : // fallthrough
+      case I_8266_BB_2805_5   : size = (size + 2*count);     break; // 5 channels
+      case I_8266_U0_SM16825_5: // fallthrough
+      case I_8266_U1_SM16825_5: // fallthrough
+      case I_8266_BB_SM16825_5: size = (size + 2*count)*2;   break; // 16 bit 5 channels
+      // DMA methods have front + DMA buffer = ((1+(3+1)) * channels; exact value is a bit of mistery - needs a dig into NPB)
+      case I_8266_DM_NEO_3    : // fallthrough
+      case I_8266_DM_400_3    : // fallthrough
+      case I_8266_DM_TM2_3    : // fallthrough
+      case I_8266_DM_APA106_3 : // fallthrough
+      case I_8266_DM_TM1914_3 : size *= 5;                   break;
+      case I_8266_DM_NEO_4    : // fallthrough
+      case I_8266_DM_TM1_4    : size = (size + count)*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_FW6_5    : // fallthrough
+      case I_8266_DM_2805_5   : size = (size + 2*count)*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)
+    #else
+      // RMT buses (1x front and 1x back buffer, does not include small RMT buffer)
+      case I_32_RN_NEO_4    : // fallthrough
+      case I_32_RN_TM1_4    : size = (size + count)*2;     break; // 4 channels
+      case I_32_RN_UCS_3    : size *= 2*2;                 break; // 16bit
+      case I_32_RN_UCS_4    : size = (size + count)*2*2;   break; // 16bit, 4 channels
+      case I_32_RN_FW6_5    : // fallthrough
+      case I_32_RN_2805_5   : size = (size + 2*count)*2;   break; // 5 channels
+      case I_32_RN_SM16825_5: size = (size + 2*count)*2*2; break; // 16bit, 5 channels
+      // I2S1 bus or paralell I2S1 buses (1x front, does not include DMA buffer which is front*cadence, a bit(?) more for LCD)
      #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;
+      case I_32_I2_NEO_3    : // fallthrough
+      case I_32_I2_400_3    : // fallthrough
+      case I_32_I2_TM2_3    : // fallthrough
+      case I_32_I2_APA106_3 :                              break; // do nothing, I2S uses single buffer + DMA buffer
+      case I_32_I2_NEO_4    : // fallthrough
+      case I_32_I2_TM1_4    : size = (size + count);       break; // 4 channels
+      case I_32_I2_UCS_3    : size *= 2;                   break; // 16 bit
+      case I_32_I2_UCS_4    : size = (size + count)*2;     break; // 16 bit, 4 channels
+      case I_32_I2_FW6_5    : // fallthrough
+      case I_32_I2_2805_5   : size = (size + 2*count);     break; // 5 channels
+      case I_32_I2_SM16825_5: size = (size + 2*count)*2;   break; // 16 bit, 5 channels
      #endif
+      default               : size *= 2;                   break; // everything else uses 2 buffers
    #endif
-      // everything else uses 2 buffers
-      default:         size *= 2; break;
    }
    return size;
  }
@@ -636,9 +636,32 @@ bool deserializeConfig(JsonObject doc, bool fromFS) {
  return (doc["sv"] | true);
 }

-
 static const char s_cfg_json[] PROGMEM = "/cfg.json";

+bool backupConfig() {
+  return backupFile(s_cfg_json);
+}
+
+bool restoreConfig() {
+  return restoreFile(s_cfg_json);
+}
+
+bool verifyConfig() {
+  return validateJsonFile(s_cfg_json);
+}
+
+// rename config file and reboot
+// if the cfg file doesn't exist, such as after a reset, do nothing
+void resetConfig() {
+  if (WLED_FS.exists(s_cfg_json)) {
+    DEBUG_PRINTLN(F("Reset config"));
+    char backupname[32];
+    snprintf_P(backupname, sizeof(backupname), PSTR("/rst.%s"), &s_cfg_json[1]);
+    WLED_FS.rename(s_cfg_json, backupname);
+    doReboot = true;
+  }
+}
+
 bool deserializeConfigFromFS() {
  [[maybe_unused]] bool success = deserializeConfigSec();
  #ifdef WLED_ADD_EEPROM_SUPPORT
@@ -676,6 +699,7 @@ bool deserializeConfigFromFS() {

 void serializeConfig() {
  serializeConfigSec();
+  backupConfig(); // backup before writing new config

  DEBUG_PRINTLN(F("Writing settings to /cfg.json..."));

@@ -198,6 +198,7 @@
 			let dbl = 0;
 			let ch = 3*hasRGB(t) + hasW(t) + hasCCT(t);
 			let mul = 1;
+			if (d.Sf.LD.checked) dbl = len * ch; // global buffer
 			if (isDig(t)) {
 				if (is16b(t)) len *= 2; // 16 bit LEDs
 				if (maxM < 10000 && d.getElementsByName("L0"+n)[0].value == 3) { //8266 DMA uses 5x the mem
@@ -206,7 +207,6 @@
 				if (maxM >= 10000) { //ESP32 RMT uses double buffer?
 					mul = 2;
 				}
-				if (d.Sf.LD.checked) dbl = len * ch; // double buffering
 			}
 			return len * ch * mul + dbl;
 		}
@@ -73,7 +73,7 @@
 		A huge thank you to everyone who helped me create WLED!<br><br>
 		(c) 2016-2024 Christian Schwinne <br>
 		<i>Licensed under the <a href="https://github.com/Aircoookie/WLED/blob/master/LICENSE" target="_blank">EUPL v1.2 license</a></i><br><br>
-		Server message: <span class="sip"> Response error! </span><hr>
+		Installed version: <span class="sip">WLED ##VERSION##</span><hr>
 		<div id="toast"></div>
 		<button type="button" onclick="B()">Back</button><button type="submit">Save</button>
 	</form>
@@ -5,25 +5,64 @@
 	<title>WLED Update</title>
 	<script>
 		function B() { window.history.back(); }
-		function U() { document.getElementById("uf").style.display="none";document.getElementById("msg").style.display="block"; }
-		function GetV() {/*injected values here*/}
+		function U() { document.getElementById("uf").style.display="none";document.getElementById("bootloader-section").style.display="none";document.getElementById("msg").style.display="block"; }
+		function GetV() {
+			// Fetch device info via JSON API instead of compiling it in
+			fetch('/json/info')
+				.then(response => response.json())
+				.then(data => {
+					document.querySelector('.installed-version').textContent = `${data.brand} ${data.ver} (${data.vid})`;
+					document.querySelector('.release-name').textContent = data.release;
+					// TODO - assemble update URL
+					// TODO - can this be done at build time?
+					if (data.arch == "esp8266") {
+						toggle('rev');
+					}
+					const isESP32 = data.arch && (data.arch.toLowerCase() === 'esp32' || data.arch.toLowerCase() === 'esp32-s2');
+					if (isESP32) {
+						document.getElementById('bootloader-section').style.display = 'block';
+						if (data.bootloaderSHA256) {
+							document.getElementById('bootloader-hash').innerText = 'Current bootloader SHA256: ' + data.bootloaderSHA256;
+						}
+					}
+				})
+				.catch(error => {
+					console.log('Could not fetch device info:', error);
+					// Fallback to compiled-in value if API call fails
+					document.querySelector('.installed-version').textContent = 'Unknown';
+					document.querySelector('.release-name').textContent = 'Unknown';
+				});
+		}
 	</script>
 	<style>
 		@import url("style.css");
 	</style>
 </head>
-
-<body onload="GetV()">
+<body onload="GetV();">
 	<h2>WLED Software Update</h2>
 	<form method='POST' action='./update' id='uf' enctype='multipart/form-data' onsubmit="U()">
-		Installed version: <span class="sip">##VERSION##</span><br>
-		Download the latest binary:&nbsp;<a href="https://github.com/Aircoookie/WLED/releases" target="_blank" 
+		Installed version: <span class="sip installed-version">Loading...</span><br>
+		Release: <span class="sip release-name">Loading...</span><br>
+		Download the latest binary: <a href="https://github.com/wled/WLED/releases" target="_blank"
 		style="vertical-align: text-bottom; display: inline-flex;">
-		<img src="https://img.shields.io/github/release/Aircoookie/WLED.svg?style=flat-square"></a><br>
+		<img src="https://img.shields.io/github/release/wled/WLED.svg?style=flat-square"></a><br>
+		<input type="hidden" name="skipValidation" value="" id="sV">
 		<input type='file' name='update' required><br> <!--should have accept='.bin', but it prevents file upload from android app-->
+		<input type='checkbox' onchange="sV.value=checked?1:''" id="skipValidation">
+		<label for='skipValidation'>Ignore firmware validation</label><br>
 		<button type="submit">Update!</button><br>
 		<button type="button" onclick="B()">Back</button>
 	</form>
+	<div id="bootloader-section" style="display:none;">
+		<hr class="sml">
+		<h2>ESP32 Bootloader Update</h2>
+		<div id="bootloader-hash" class="sip" style="margin-bottom:8px;"></div>
+		<form method='POST' action='./updatebootloader' id='bootupd' enctype='multipart/form-data' onsubmit="U()">
+			<b>Warning:</b> Only upload verified ESP32 bootloader files!<br>
+			<input type='file' name='update' required><br>
+			<button type="submit">Update Bootloader</button>
+		</form>
+	</div>
 	<div id="msg"><b>Updating...</b><br>Please do not close or refresh the page :)</div>
 </body>
 </html>
@@ -416,7 +416,7 @@ void prepareArtnetPollReply(ArtPollReply *reply) {

  reply->reply_port = ARTNET_DEFAULT_PORT;

-  char * numberEnd = versionString;
+  char * numberEnd = (char*) versionString; // strtol promises not to try to edit this.
  reply->reply_version_h = (uint8_t)strtol(numberEnd, &numberEnd, 10);
  numberEnd++;
  reply->reply_version_l = (uint8_t)strtol(numberEnd, &numberEnd, 10);
@@ -24,6 +24,10 @@ void handleIO();
 void IRAM_ATTR touchButtonISR();

 //cfg.cpp
+bool backupConfig();
+bool restoreConfig();
+bool verifyConfig();
+void resetConfig();
 bool deserializeConfig(JsonObject doc, bool fromFS = false);
 bool deserializeConfigFromFS();
 bool deserializeConfigSec();
@@ -114,10 +118,15 @@ bool readObjectFromFileUsingId(const char* file, uint16_t id, JsonDocument* dest
 bool readObjectFromFile(const char* file, const char* key, JsonDocument* dest);
 void updateFSInfo();
 void closeFile();
-inline bool writeObjectToFileUsingId(const String &file, uint16_t id, JsonDocument* content) { return writeObjectToFileUsingId(file.c_str(), id, content); };
-inline bool writeObjectToFile(const String &file, const char* key, JsonDocument* content) { return writeObjectToFile(file.c_str(), key, content); };
-inline bool readObjectFromFileUsingId(const String &file, uint16_t id, JsonDocument* dest) { return readObjectFromFileUsingId(file.c_str(), id, dest); };
-inline bool readObjectFromFile(const String &file, const char* key, JsonDocument* dest) { return readObjectFromFile(file.c_str(), key, dest); };
+inline bool writeObjectToFileUsingId(const String &file, uint16_t id, const JsonDocument* content) { return writeObjectToFileUsingId(file.c_str(), id, content); };
+inline bool writeObjectToFile(const String &file, const char* key, const JsonDocument* content) { return writeObjectToFile(file.c_str(), key, content); };
+inline bool readObjectFromFileUsingId(const String &file, uint16_t id, JsonDocument* dest, const JsonDocument* filter = nullptr) { return readObjectFromFileUsingId(file.c_str(), id, dest); };
+inline bool readObjectFromFile(const String &file, const char* key, JsonDocument* dest, const JsonDocument* filter = nullptr) { return readObjectFromFile(file.c_str(), key, dest); };
+bool copyFile(const char* src_path, const char* dst_path);
+bool backupFile(const char* filename);
+bool restoreFile(const char* filename);
+bool validateJsonFile(const char* filename);
+void dumpFilesToSerial();

 //hue.cpp
 void handleHue();
@@ -399,6 +408,15 @@ void enumerateLedmaps();
 uint8_t get_random_wheel_index(uint8_t pos);
 float mapf(float x, float in_min, float in_max, float out_min, float out_max);

+void handleBootLoop();   // detect and handle bootloops
+#ifndef ESP8266
+void bootloopCheckOTA(); // swap boot image if bootloop is detected instead of restoring config
+#endif
+
+void handleBootLoop();   // detect and handle bootloops
+#ifndef ESP8266
+void bootloopCheckOTA(); // swap boot image if bootloop is detected instead of restoring config
+#endif
 // RAII guard class for the JSON Buffer lock
 // Modeled after std::lock_guard
 class JSONBufferGuard {
@@ -438,3 +438,156 @@ bool handleFileRead(AsyncWebServerRequest* request, String path){
  }
  return false;
 }
+
+// copy a file, delete destination file if incomplete to prevent corrupted files
+bool copyFile(const char* src_path, const char* dst_path) {
+  DEBUG_PRINTF("copyFile from %s to %s\n", src_path, dst_path);
+  if(!WLED_FS.exists(src_path)) {
+   DEBUG_PRINTLN(F("file not found"));
+   return false;
+  }
+
+  bool success = true; // is set to false on error
+  File src = WLED_FS.open(src_path, "r");
+  File dst = WLED_FS.open(dst_path, "w");
+
+  if (src && dst) {
+    uint8_t buf[128]; // copy file in 128-byte blocks
+    while (src.available() > 0) {
+      size_t bytesRead = src.read(buf, sizeof(buf));
+      if (bytesRead == 0) {
+        success = false;
+        break; // error, no data read
+      }
+      size_t bytesWritten = dst.write(buf, bytesRead);
+      if (bytesWritten != bytesRead) {
+        success = false;
+        break; // error, not all data written
+      }
+    }
+  } else {
+    success = false; // error, could not open files
+  }
+  if(src) src.close();
+  if(dst) dst.close();
+  if (!success) {
+    DEBUG_PRINTLN(F("copy failed"));
+    WLED_FS.remove(dst_path); // delete incomplete file
+  }
+  return success;
+}
+
+// compare two files, return true if identical
+bool compareFiles(const char* path1, const char* path2) {
+  DEBUG_PRINTF("compareFile %s and %s\n", path1, path2);
+  if (!WLED_FS.exists(path1) || !WLED_FS.exists(path2)) {
+    DEBUG_PRINTLN(F("file not found"));
+    return false;
+  }
+
+  bool identical = true; // set to false on mismatch
+  File f1 = WLED_FS.open(path1, "r");
+  File f2 = WLED_FS.open(path2, "r");
+
+  if (f1 && f2) {
+    uint8_t buf1[128], buf2[128];
+    while (f1.available() > 0 || f2.available() > 0) {
+      size_t len1 = f1.read(buf1, sizeof(buf1));
+      size_t len2 = f2.read(buf2, sizeof(buf2));
+
+      if (len1 != len2) {
+        identical = false;
+        break; // files differ in size or read failed
+      }
+
+      if (memcmp(buf1, buf2, len1) != 0) {
+        identical = false;
+        break; // files differ in content
+      }
+    }
+  } else {
+    identical = false; // error opening files
+  }
+
+  if (f1) f1.close();
+  if (f2) f2.close();
+  return identical;
+}
+
+static const char s_backup_fmt[] PROGMEM = "/bkp.%s";
+
+bool backupFile(const char* filename) {
+  DEBUG_PRINTF("backup %s \n", filename);
+  if (!validateJsonFile(filename)) {
+    DEBUG_PRINTLN(F("broken file"));
+    return false;
+  }
+  char backupname[32];
+  snprintf_P(backupname, sizeof(backupname), s_backup_fmt, filename + 1); // skip leading '/' in filename
+
+  if (copyFile(filename, backupname)) {
+    DEBUG_PRINTLN(F("backup ok"));
+    return true;
+  }
+  DEBUG_PRINTLN(F("backup failed"));
+  return false;
+}
+
+bool restoreFile(const char* filename) {
+  DEBUG_PRINTF("restore %s \n", filename);
+  char backupname[32];
+  snprintf_P(backupname, sizeof(backupname), s_backup_fmt, filename + 1); // skip leading '/' in filename
+
+  if (!WLED_FS.exists(backupname)) {
+    DEBUG_PRINTLN(F("no backup found"));
+    return false;
+  }
+
+  if (!validateJsonFile(backupname)) {
+    DEBUG_PRINTLN(F("broken backup"));
+    return false;
+  }
+
+  if (copyFile(backupname, filename)) {
+    DEBUG_PRINTLN(F("restore ok"));
+    return true;
+  }
+  DEBUG_PRINTLN(F("restore failed"));
+  return false;
+}
+
+bool validateJsonFile(const char* filename) {
+  if (!WLED_FS.exists(filename)) return false;
+  File file = WLED_FS.open(filename, "r");
+  if (!file) return false;
+  StaticJsonDocument<0> doc, filter; // https://arduinojson.org/v6/how-to/validate-json/
+  bool result = deserializeJson(doc, file, DeserializationOption::Filter(filter)) == DeserializationError::Ok;
+  file.close();
+  if (!result) {
+    DEBUG_PRINTF_P(PSTR("Invalid JSON file %s\n"), filename);
+  } else {
+    DEBUG_PRINTF_P(PSTR("Valid JSON file %s\n"), filename);
+  }
+  return result;
+}
+
+// print contents of all files in root dir to Serial except wsec files
+void dumpFilesToSerial() {
+  File rootdir = WLED_FS.open("/", "r");
+  File rootfile = rootdir.openNextFile();
+  while (rootfile) {
+    size_t len = strlen(rootfile.name());
+    // skip files starting with "wsec" and dont end in .json
+    if (strncmp(rootfile.name(), "wsec", 4) != 0 && len >= 6 && strcmp(rootfile.name() + len - 5, ".json") == 0) {
+      Serial.println(rootfile.name());
+      while (rootfile.available()) {
+        Serial.write(rootfile.read());
+      }
+      Serial.println();
+      Serial.println();
+    }
+    rootfile.close();
+    rootfile = rootdir.openNextFile();
+  }
+}
+
@@ -753,6 +753,9 @@ void serializeInfo(JsonObject root)
  root[F("resetReason1")] = (int)rtc_get_reset_reason(1);
  #endif
  root[F("lwip")] = 0; //deprecated
+  #ifndef WLED_DISABLE_OTA
+  root[F("bootloaderSHA256")] = getBootloaderSHA256Hex();
+  #endif
 #else
  root[F("arch")] = "esp8266";
  root[F("core")] = ESP.getCoreVersion();
@@ -0,0 +1,727 @@
+#include "ota_update.h"
+#include "wled.h"
+
+#ifdef ESP32
+#include <esp_ota_ops.h>
+#include <esp_flash.h>
+#include <mbedtls/sha256.h>
+#endif
+
+// Platform-specific metadata locations
+#ifdef ESP32
+constexpr size_t METADATA_OFFSET = 256;          // ESP32: metadata appears after Espressif metadata
+#define UPDATE_ERROR errorString
+const size_t BOOTLOADER_OFFSET = 0x1000;
+#elif defined(ESP8266)
+constexpr size_t METADATA_OFFSET = 0x1000;     // ESP8266: metadata appears at 4KB offset
+#define UPDATE_ERROR getErrorString
+#endif
+constexpr size_t METADATA_SEARCH_RANGE = 512;  // bytes
+
+
+/**
+ * Check if OTA should be allowed based on release compatibility using custom description
+ * @param binaryData Pointer to binary file data (not modified)
+ * @param dataSize Size of binary data in bytes
+ * @param errorMessage Buffer to store error message if validation fails 
+ * @param errorMessageLen Maximum length of error message buffer
+ * @return true if OTA should proceed, false if it should be blocked
+ */
+
+static bool validateOTA(const uint8_t* binaryData, size_t dataSize, char* errorMessage, size_t errorMessageLen) {
+  // Clear error message
+  if (errorMessage && errorMessageLen > 0) {
+    errorMessage[0] = '\0';
+  }
+
+  // Try to extract WLED structure directly from binary data
+  wled_metadata_t extractedDesc;
+  bool hasDesc = findWledMetadata(binaryData, dataSize, &extractedDesc);
+
+  if (hasDesc) {
+    return shouldAllowOTA(extractedDesc, errorMessage, errorMessageLen);
+  } else {
+    // No custom description - this could be a legacy binary
+    if (errorMessage && errorMessageLen > 0) {
+      strncpy_P(errorMessage, PSTR("This firmware file is missing compatibility metadata."), errorMessageLen - 1);
+      errorMessage[errorMessageLen - 1] = '\0';
+    }
+    return false;
+  }
+}
+
+struct UpdateContext {
+  // State flags
+  // FUTURE: the flags could be replaced by a state machine
+  bool replySent = false;
+  bool needsRestart = false;
+  bool updateStarted = false;
+  bool uploadComplete = false;
+  bool releaseCheckPassed = false;
+  String errorMessage;
+
+  // Buffer to hold block data across posts, if needed
+  std::vector<uint8_t> releaseMetadataBuffer;  
+};
+
+
+static void endOTA(AsyncWebServerRequest *request) {
+  UpdateContext* context = reinterpret_cast<UpdateContext*>(request->_tempObject);
+  request->_tempObject = nullptr;
+
+  DEBUG_PRINTF_P(PSTR("EndOTA %x --> %x (%d)\n"), (uintptr_t)request,(uintptr_t) context, context ? context->uploadComplete : 0);
+  if (context) {
+    if (context->updateStarted) {  // We initialized the update
+      // We use Update.end() because not all forms of Update() support an abort.
+      // If the upload is incomplete, Update.end(false) should error out.
+      if (Update.end(context->uploadComplete)) {
+        // Update successful!
+        #ifndef ESP8266
+        bootloopCheckOTA(); // let the bootloop-checker know there was an OTA update
+        #endif
+        doReboot = true;
+        context->needsRestart = false;
+      }
+    }
+
+    if (context->needsRestart) {
+      strip.resume();
+      UsermodManager::onUpdateBegin(false);
+      #if WLED_WATCHDOG_TIMEOUT > 0
+      WLED::instance().enableWatchdog();
+      #endif
+    }
+    delete context;
+  }
+};
+
+static bool beginOTA(AsyncWebServerRequest *request, UpdateContext* context)
+{
+  #ifdef ESP8266
+  Update.runAsync(true);
+  #endif  
+
+  if (Update.isRunning()) {
+      request->send(503);
+      setOTAReplied(request);
+      return false;
+  }
+
+  #if WLED_WATCHDOG_TIMEOUT > 0
+  WLED::instance().disableWatchdog();
+  #endif
+  UsermodManager::onUpdateBegin(true); // notify usermods that update is about to begin (some may require task de-init)
+  
+  strip.suspend();
+  strip.resetSegments();  // free as much memory as you can
+  context->needsRestart = true;
+  backupConfig(); // backup current config in case the update ends badly
+
+  DEBUG_PRINTF_P(PSTR("OTA Update Start, %x --> %x\n"), (uintptr_t)request,(uintptr_t) context);
+
+  auto skipValidationParam = request->getParam("skipValidation", true);
+  if (skipValidationParam && (skipValidationParam->value() == "1")) {
+    context->releaseCheckPassed = true;
+    DEBUG_PRINTLN(F("OTA validation skipped by user"));
+  }
+  
+  // Begin update with the firmware size from content length
+  size_t updateSize = request->contentLength() > 0 ? request->contentLength() : ((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000);
+  if (!Update.begin(updateSize)) {    
+    context->errorMessage = Update.UPDATE_ERROR();
+    DEBUG_PRINTF_P(PSTR("OTA Failed to begin: %s\n"), context->errorMessage.c_str());
+    return false;
+  }
+  
+  context->updateStarted = true;
+  return true;
+}
+
+// Create an OTA context object on an AsyncWebServerRequest
+// Returns true if successful, false on failure.
+bool initOTA(AsyncWebServerRequest *request) {
+  // Allocate update context
+  UpdateContext* context = new (std::nothrow) UpdateContext {};  
+  if (context) {
+    request->_tempObject = context;
+    request->onDisconnect([=]() { endOTA(request); });  // ensures we restart on failure
+  };
+
+  DEBUG_PRINTF_P(PSTR("OTA Update init, %x --> %x\n"), (uintptr_t)request,(uintptr_t) context);
+  return (context != nullptr);
+}
+
+void setOTAReplied(AsyncWebServerRequest *request) {
+  UpdateContext* context = reinterpret_cast<UpdateContext*>(request->_tempObject);
+  if (!context) return;
+  context->replySent = true;
+};
+
+// Returns pointer to error message, or nullptr if OTA was successful.
+std::pair<bool, String> getOTAResult(AsyncWebServerRequest* request) {
+  UpdateContext* context = reinterpret_cast<UpdateContext*>(request->_tempObject);
+  if (!context) return { true, F("OTA context unexpectedly missing") };
+  if (context->replySent) return { false, {} };
+  if (context->errorMessage.length()) return { true, context->errorMessage };
+
+  if (context->updateStarted) {
+    // Release the OTA context now.
+    endOTA(request);
+    if (Update.hasError()) {
+      return { true, Update.UPDATE_ERROR() };
+    } else {
+      return { true, {} };
+    }
+  }
+
+  // Should never happen
+  return { true, F("Internal software failure") };
+}
+
+
+
+void handleOTAData(AsyncWebServerRequest *request, size_t index, uint8_t *data, size_t len, bool isFinal)
+{
+  UpdateContext* context = reinterpret_cast<UpdateContext*>(request->_tempObject);
+  if (!context) return;
+
+  //DEBUG_PRINTF_P(PSTR("HandleOTAData: %d %d %d\n"), index, len, isFinal);
+
+  if (context->replySent || (context->errorMessage.length())) return;
+
+  if (index == 0) {
+    if (!beginOTA(request, context)) return;
+  }
+
+  // Perform validation if we haven't done it yet and we have reached the metadata offset
+  if (!context->releaseCheckPassed && (index+len) > METADATA_OFFSET) {
+    // Current chunk contains the metadata offset
+    size_t availableDataAfterOffset = (index + len) - METADATA_OFFSET;
+
+    DEBUG_PRINTF_P(PSTR("OTA metadata check: %d in buffer, %d received, %d available\n"), context->releaseMetadataBuffer.size(), len, availableDataAfterOffset);
+
+    if (availableDataAfterOffset >= METADATA_SEARCH_RANGE) {
+      // We have enough data to validate, one way or another
+      const uint8_t* search_data = data;
+      size_t search_len = len;
+      
+      // If we have saved data, use that instead
+      if (context->releaseMetadataBuffer.size()) {
+        // Add this data
+        context->releaseMetadataBuffer.insert(context->releaseMetadataBuffer.end(), data, data+len);
+        search_data = context->releaseMetadataBuffer.data();
+        search_len = context->releaseMetadataBuffer.size();
+      }
+
+      // Do the checking
+      char errorMessage[128];
+      bool OTA_ok = validateOTA(search_data, search_len, errorMessage, sizeof(errorMessage));
+      
+      // Release buffer if there was one
+      context->releaseMetadataBuffer = decltype(context->releaseMetadataBuffer){};
+      
+      if (!OTA_ok) {
+        DEBUG_PRINTF_P(PSTR("OTA declined: %s\n"), errorMessage);
+        context->errorMessage = errorMessage;
+        context->errorMessage += F(" Enable 'Ignore firmware validation' to proceed anyway.");
+        return;
+      } else {
+        DEBUG_PRINTLN(F("OTA allowed: Release compatibility check passed"));
+        context->releaseCheckPassed = true;
+      }        
+    } else {
+      // Store the data we just got for next pass
+      context->releaseMetadataBuffer.insert(context->releaseMetadataBuffer.end(), data, data+len);
+    }
+  }
+
+  // Check if validation was still pending (shouldn't happen normally)
+  // This is done before writing the last chunk, so endOTA can abort 
+  if (isFinal && !context->releaseCheckPassed) {
+    DEBUG_PRINTLN(F("OTA failed: Validation never completed"));
+    // Don't write the last chunk to the updater: this will trip an error later
+    context->errorMessage = F("Release check data never arrived?");
+    return;
+  }
+
+  // Write chunk data to OTA update (only if release check passed or still pending)
+  if (!Update.hasError()) {
+    if (Update.write(data, len) != len) {
+      DEBUG_PRINTF_P(PSTR("OTA write failed on chunk %zu: %s\n"), index, Update.UPDATE_ERROR());
+    }
+  }
+
+  if(isFinal) {
+    DEBUG_PRINTLN(F("OTA Update End"));
+    // Upload complete
+    context->uploadComplete = true;
+  }
+}
+
+#if defined(ARDUINO_ARCH_ESP32) && !defined(WLED_DISABLE_OTA)
+// Cache for bootloader SHA256 digest as hex string
+static String bootloaderSHA256HexCache = "";
+
+// Calculate and cache the bootloader SHA256 digest as hex string
+void calculateBootloaderSHA256() {
+  if (!bootloaderSHA256HexCache.isEmpty()) return;
+
+  // Bootloader is at fixed offset 0x1000 (4KB) and is typically 32KB
+  const uint32_t bootloaderSize = 0x8000; // 32KB, typical bootloader size
+
+  // Calculate SHA256
+  uint8_t sha256[32];
+  mbedtls_sha256_context ctx;
+  mbedtls_sha256_init(&ctx);
+  mbedtls_sha256_starts(&ctx, 0); // 0 = SHA256 (not SHA224)
+
+  const size_t chunkSize = 256;
+  uint8_t buffer[chunkSize];
+
+  for (uint32_t offset = 0; offset < bootloaderSize; offset += chunkSize) {
+    size_t readSize = min((size_t)(bootloaderSize - offset), chunkSize);
+    if (esp_flash_read(NULL, buffer, BOOTLOADER_OFFSET + offset, readSize) == ESP_OK) {
+      mbedtls_sha256_update(&ctx, buffer, readSize);
+    }
+  }
+
+  mbedtls_sha256_finish(&ctx, sha256);
+  mbedtls_sha256_free(&ctx);
+
+  // Convert to hex string and cache it
+  char hex[65];
+  for (int i = 0; i < 32; i++) {
+    sprintf(hex + (i * 2), "%02x", sha256[i]);
+  }
+  hex[64] = '\0';
+  bootloaderSHA256HexCache = String(hex);
+}
+
+// Get bootloader SHA256 as hex string
+String getBootloaderSHA256Hex() {
+  calculateBootloaderSHA256();
+  return bootloaderSHA256HexCache;
+}
+
+// Invalidate cached bootloader SHA256 (call after bootloader update)
+void invalidateBootloaderSHA256Cache() {
+  bootloaderSHA256HexCache = "";
+}
+
+// Verify complete buffered bootloader using ESP-IDF validation approach
+// This matches the key validation steps from esp_image_verify() in ESP-IDF
+// Returns the actual bootloader data pointer and length via the buffer and len parameters
+bool verifyBootloaderImage(const uint8_t* &buffer, size_t &len, String* bootloaderErrorMsg) {
+  size_t availableLen = len;
+  if (!bootloaderErrorMsg) {
+    DEBUG_PRINTLN(F("bootloaderErrorMsg is null"));
+    return false;
+  }
+  // ESP32 image header structure (based on esp_image_format.h)
+  // Offset 0: magic (0xE9)
+  // Offset 1: segment_count
+  // Offset 2: spi_mode
+  // Offset 3: spi_speed (4 bits) + spi_size (4 bits)
+  // Offset 4-7: entry_addr (uint32_t)
+  // Offset 8: wp_pin
+  // Offset 9-11: spi_pin_drv[3]
+  // Offset 12-13: chip_id (uint16_t, little-endian)
+  // Offset 14: min_chip_rev
+  // Offset 15-22: reserved[8]
+  // Offset 23: hash_appended
+
+  const size_t MIN_IMAGE_HEADER_SIZE = 24;
+
+  // 1. Validate minimum size for header
+  if (len < MIN_IMAGE_HEADER_SIZE) {
+    *bootloaderErrorMsg = "Bootloader too small - invalid header";
+    return false;
+  }
+
+  // Check if the bootloader starts at offset 0x1000 (common in partition table dumps)
+  // This happens when someone uploads a complete flash dump instead of just the bootloader
+  if (len > BOOTLOADER_OFFSET + MIN_IMAGE_HEADER_SIZE &&
+      buffer[BOOTLOADER_OFFSET] == 0xE9 &&
+      buffer[0] != 0xE9) {
+    DEBUG_PRINTF_P(PSTR("Bootloader magic byte detected at offset 0x%04X - adjusting buffer\n"), BOOTLOADER_OFFSET);
+    // Adjust buffer pointer to start at the actual bootloader
+    buffer = buffer + BOOTLOADER_OFFSET;
+    len = len - BOOTLOADER_OFFSET;
+
+    // Re-validate size after adjustment
+    if (len < MIN_IMAGE_HEADER_SIZE) {
+      *bootloaderErrorMsg = "Bootloader at offset 0x1000 too small - invalid header";
+      return false;
+    }
+  }
+
+  // 2. Magic byte check (matches esp_image_verify step 1)
+  if (buffer[0] != 0xE9) {
+    *bootloaderErrorMsg = "Invalid bootloader magic byte (expected 0xE9, got 0x" + String(buffer[0], HEX) + ")";
+    return false;
+  }
+
+  // 3. Segment count validation (matches esp_image_verify step 2)
+  uint8_t segmentCount = buffer[1];
+  if (segmentCount == 0 || segmentCount > 16) {
+    *bootloaderErrorMsg = "Invalid segment count: " + String(segmentCount);
+    return false;
+  }
+
+  // 4. SPI mode validation (basic sanity check)
+  uint8_t spiMode = buffer[2];
+  if (spiMode > 3) {  // Valid modes are 0-3 (QIO, QOUT, DIO, DOUT)
+    *bootloaderErrorMsg = "Invalid SPI mode: " + String(spiMode);
+    return false;
+  }
+
+  // 5. Chip ID validation (matches esp_image_verify step 3)
+  uint16_t chipId = buffer[12] | (buffer[13] << 8);  // Little-endian
+
+  // Known ESP32 chip IDs from ESP-IDF:
+  // 0x0000 = ESP32
+  // 0x0002 = ESP32-S2
+  // 0x0005 = ESP32-C3
+  // 0x0009 = ESP32-S3
+  // 0x000C = ESP32-C2
+  // 0x000D = ESP32-C6
+  // 0x0010 = ESP32-H2
+
+  #if defined(CONFIG_IDF_TARGET_ESP32)
+    if (chipId != 0x0000) {
+      *bootloaderErrorMsg = "Chip ID mismatch - expected ESP32 (0x0000), got 0x" + String(chipId, HEX);
+      return false;
+    }
+  #elif defined(CONFIG_IDF_TARGET_ESP32S2)
+    if (chipId != 0x0002) {
+      *bootloaderErrorMsg = "Chip ID mismatch - expected ESP32-S2 (0x0002), got 0x" + String(chipId, HEX);
+      return false;
+    }
+  #elif defined(CONFIG_IDF_TARGET_ESP32C3)
+    if (chipId != 0x0005) {
+      *bootloaderErrorMsg = "Chip ID mismatch - expected ESP32-C3 (0x0005), got 0x" + String(chipId, HEX);
+      return false;
+    }
+    *bootloaderErrorMsg = "ESP32-C3 update not supported yet";
+    return false;
+  #elif defined(CONFIG_IDF_TARGET_ESP32S3)
+    if (chipId != 0x0009) {
+      *bootloaderErrorMsg = "Chip ID mismatch - expected ESP32-S3 (0x0009), got 0x" + String(chipId, HEX);
+      return false;
+    }
+    *bootloaderErrorMsg = "ESP32-S3 update not supported yet";
+    return false;
+  #elif defined(CONFIG_IDF_TARGET_ESP32C6)
+    if (chipId != 0x000D) {
+      *bootloaderErrorMsg = "Chip ID mismatch - expected ESP32-C6 (0x000D), got 0x" + String(chipId, HEX);
+      return false;
+    }
+    *bootloaderErrorMsg = "ESP32-C6 update not supported yet";
+    return false;
+  #else
+    // Generic validation - chip ID should be valid
+    if (chipId > 0x00FF) {
+      *bootloaderErrorMsg = "Invalid chip ID: 0x" + String(chipId, HEX);
+      return false;
+    }
+   *bootloaderErrorMsg = "Unknown ESP32 target - bootloader update not supported";
+   return false;
+  #endif
+
+  // 6. Entry point validation (should be in valid memory range)
+  uint32_t entryAddr = buffer[4] | (buffer[5] << 8) | (buffer[6] << 16) | (buffer[7] << 24);
+  // ESP32 bootloader entry points are typically in IRAM range (0x40000000 - 0x40400000)
+  // or ROM range (0x40000000 and above)
+  if (entryAddr < 0x40000000 || entryAddr > 0x50000000) {
+    *bootloaderErrorMsg = "Invalid entry address: 0x" + String(entryAddr, HEX);
+    return false;
+  }
+
+  // 7. Basic segment structure validation
+  // Each segment has a header: load_addr (4 bytes) + data_len (4 bytes)
+  size_t offset = MIN_IMAGE_HEADER_SIZE;
+  size_t actualBootloaderSize = MIN_IMAGE_HEADER_SIZE;
+
+  for (uint8_t i = 0; i < segmentCount && offset + 8 <= len; i++) {
+    uint32_t segmentSize = buffer[offset + 4] | (buffer[offset + 5] << 8) |
+                           (buffer[offset + 6] << 16) | (buffer[offset + 7] << 24);
+
+    // Segment size sanity check
+    // ESP32 classic bootloader segments can be larger, C3 are smaller
+    if (segmentSize > 0x20000) {  // 128KB max per segment (very generous)
+      *bootloaderErrorMsg = "Segment " + String(i) + " too large: " + String(segmentSize) + " bytes";
+      return false;
+    }
+
+    offset += 8 + segmentSize;  // Skip segment header and data
+  }
+
+  actualBootloaderSize = offset;
+
+  // 8. Check for appended SHA256 hash (byte 23 in header)
+  // If hash_appended != 0, there's a 32-byte SHA256 hash after the segments
+  uint8_t hashAppended = buffer[23];
+  if (hashAppended != 0) {
+    actualBootloaderSize += 32;
+    if (actualBootloaderSize > availableLen) {
+      *bootloaderErrorMsg = "Bootloader missing SHA256 trailer";
+      return false;
+    }
+    DEBUG_PRINTF_P(PSTR("Bootloader has appended SHA256 hash\n"));
+  }
+
+  // 9. The image may also have a 1-byte checksum after segments/hash
+  // Check if there's at least one more byte available
+  if (actualBootloaderSize + 1 <= availableLen) {
+    // There's likely a checksum byte
+    actualBootloaderSize += 1;
+  } else if (actualBootloaderSize > availableLen) {
+    *bootloaderErrorMsg = "Bootloader truncated before checksum";
+    return false;
+  }
+
+  // 10. Align to 16 bytes (ESP32 requirement for flash writes)
+  // The bootloader image must be 16-byte aligned
+  if (actualBootloaderSize % 16 != 0) {
+    size_t alignedSize = ((actualBootloaderSize + 15) / 16) * 16;
+    // Make sure we don't exceed available data
+    if (alignedSize <= len) {
+      actualBootloaderSize = alignedSize;
+    }
+  }
+
+  DEBUG_PRINTF_P(PSTR("Bootloader validation: %d segments, actual size %d bytes (buffer size %d bytes, hash_appended=%d)\n"),
+                 segmentCount, actualBootloaderSize, len, hashAppended);
+
+  // 11. Verify we have enough data for all segments + hash + checksum
+  if (actualBootloaderSize > availableLen) {
+    *bootloaderErrorMsg = "Bootloader truncated - expected at least " + String(actualBootloaderSize) + " bytes, have " + String(availableLen) + " bytes";
+    return false;
+  }
+
+  if (offset > availableLen) {
+    *bootloaderErrorMsg = "Bootloader truncated - expected at least " + String(offset) + " bytes, have " + String(len) + " bytes";
+    return false;
+  }
+
+  // Update len to reflect actual bootloader size (including hash and checksum, with alignment)
+  // This is critical - we must write the complete image including checksums
+  len = actualBootloaderSize;
+
+  return true;
+}
+
+// Bootloader OTA context structure
+struct BootloaderUpdateContext {
+  // State flags
+  bool replySent = false;
+  bool uploadComplete = false;
+  String errorMessage;
+
+  // Buffer to hold bootloader data
+  uint8_t* buffer = nullptr;
+  size_t bytesBuffered = 0;
+  const uint32_t bootloaderOffset = 0x1000;
+  const uint32_t maxBootloaderSize = 0x10000; // 64KB buffer size
+};
+
+// Cleanup bootloader OTA context
+static void endBootloaderOTA(AsyncWebServerRequest *request) {
+  BootloaderUpdateContext* context = reinterpret_cast<BootloaderUpdateContext*>(request->_tempObject);
+  request->_tempObject = nullptr;
+
+  DEBUG_PRINTF_P(PSTR("EndBootloaderOTA %x --> %x\n"), (uintptr_t)request, (uintptr_t)context);
+  if (context) {
+    if (context->buffer) {
+      free(context->buffer);
+      context->buffer = nullptr;
+    }
+
+    // If update failed, restore system state
+    if (!context->uploadComplete || !context->errorMessage.isEmpty()) {
+      strip.resume();
+      #if WLED_WATCHDOG_TIMEOUT > 0
+      WLED::instance().enableWatchdog();
+      #endif
+    }
+
+    delete context;
+  }
+}
+
+// Initialize bootloader OTA context
+bool initBootloaderOTA(AsyncWebServerRequest *request) {
+  if (request->_tempObject) {
+    return true; // Already initialized
+  }
+
+  BootloaderUpdateContext* context = new BootloaderUpdateContext();
+  if (!context) {
+    DEBUG_PRINTLN(F("Failed to allocate bootloader OTA context"));
+    return false;
+  }
+
+  request->_tempObject = context;
+  request->onDisconnect([=]() { endBootloaderOTA(request); });  // ensures cleanup on disconnect
+
+  DEBUG_PRINTLN(F("Bootloader Update Start - initializing buffer"));
+  #if WLED_WATCHDOG_TIMEOUT > 0
+  WLED::instance().disableWatchdog();
+  #endif
+  lastEditTime = millis(); // make sure PIN does not lock during update
+  strip.suspend();
+  strip.resetSegments();
+
+  // Check available heap before attempting allocation
+  // size_t freeHeap = getFreeHeapSize();
+  DEBUG_PRINTF_P(PSTR("Free heap before bootloader buffer allocation: %d bytes (need %d bytes)\n"), freeHeap, context->maxBootloaderSize);
+
+  context->buffer = (uint8_t*)malloc(context->maxBootloaderSize);
+  if (!context->buffer) {
+    // size_t freeHeapNow = getFreeHeapSize();
+    DEBUG_PRINTF_P(PSTR("Failed to allocate %d byte bootloader buffer!\n"), context->maxBootloaderSize);
+    context->errorMessage = "Out of memory! need: " + String(context->maxBootloaderSize) + " bytes";
+    strip.resume();
+    #if WLED_WATCHDOG_TIMEOUT > 0
+    WLED::instance().enableWatchdog();
+    #endif
+    return false;
+  }
+
+  context->bytesBuffered = 0;
+  return true;
+}
+
+// Set bootloader OTA replied flag
+void setBootloaderOTAReplied(AsyncWebServerRequest *request) {
+  BootloaderUpdateContext* context = reinterpret_cast<BootloaderUpdateContext*>(request->_tempObject);
+  if (context) {
+    context->replySent = true;
+  }
+}
+
+// Get bootloader OTA result
+std::pair<bool, String> getBootloaderOTAResult(AsyncWebServerRequest *request) {
+  BootloaderUpdateContext* context = reinterpret_cast<BootloaderUpdateContext*>(request->_tempObject);
+
+  if (!context) {
+    return std::make_pair(true, String(F("Internal error: No bootloader OTA context")));
+  }
+
+  bool needsReply = !context->replySent;
+  String errorMsg = context->errorMessage;
+
+  // If upload was successful, return empty string and trigger reboot
+  if (context->uploadComplete && errorMsg.isEmpty()) {
+    doReboot = true;
+    endBootloaderOTA(request);
+    return std::make_pair(needsReply, String());
+  }
+
+  // If there was an error, return it
+  if (!errorMsg.isEmpty()) {
+    endBootloaderOTA(request);
+    return std::make_pair(needsReply, errorMsg);
+  }
+
+  // Should never happen
+  return std::make_pair(true, String(F("Internal software failure")));
+}
+
+// Handle bootloader OTA data
+void handleBootloaderOTAData(AsyncWebServerRequest *request, size_t index, uint8_t *data, size_t len, bool isFinal) {
+  BootloaderUpdateContext* context = reinterpret_cast<BootloaderUpdateContext*>(request->_tempObject);
+
+  if (!context) {
+    DEBUG_PRINTLN(F("No bootloader OTA context - ignoring data"));
+    return;
+  }
+
+  if (!context->errorMessage.isEmpty()) {
+    return;
+  }
+
+  // Buffer the incoming data
+  if (context->buffer && context->bytesBuffered + len <= context->maxBootloaderSize) {
+    memcpy(context->buffer + context->bytesBuffered, data, len);
+    context->bytesBuffered += len;
+    DEBUG_PRINTF_P(PSTR("Bootloader buffer progress: %d / %d bytes\n"), context->bytesBuffered, context->maxBootloaderSize);
+  } else if (!context->buffer) {
+    DEBUG_PRINTLN(F("Bootloader buffer not allocated!"));
+    context->errorMessage = "Internal error: Bootloader buffer not allocated";
+    return;
+  } else {
+    size_t totalSize = context->bytesBuffered + len;
+    DEBUG_PRINTLN(F("Bootloader size exceeds maximum!"));
+    context->errorMessage = "Bootloader file too large: " + String(totalSize) + " bytes (max: " + String(context->maxBootloaderSize) + " bytes)";
+    return;
+  }
+
+  // Only write to flash when upload is complete
+  if (isFinal) {
+    DEBUG_PRINTLN(F("Bootloader Upload Complete - validating and flashing"));
+
+    if (context->buffer && context->bytesBuffered > 0) {
+      // Prepare pointers for verification (may be adjusted if bootloader at offset)
+      const uint8_t* bootloaderData = context->buffer;
+      size_t bootloaderSize = context->bytesBuffered;
+
+      // Verify the complete bootloader image before flashing
+      // Note: verifyBootloaderImage may adjust bootloaderData pointer and bootloaderSize
+      // for validation purposes only
+      if (!verifyBootloaderImage(bootloaderData, bootloaderSize, &context->errorMessage)) {
+        DEBUG_PRINTLN(F("Bootloader validation failed!"));
+        // Error message already set by verifyBootloaderImage
+      } else {
+        // Calculate offset to write to flash
+        // If bootloaderData was adjusted (partition table detected), we need to skip it in flash too
+        size_t flashOffset = context->bootloaderOffset;
+        const uint8_t* dataToWrite = context->buffer;
+        size_t bytesToWrite = context->bytesBuffered;
+
+        // If validation adjusted the pointer, it means we have a partition table at the start
+        // In this case, we should skip writing the partition table and write bootloader at 0x1000
+        if (bootloaderData != context->buffer) {
+          // bootloaderData was adjusted - skip partition table in our data
+          size_t partitionTableSize = bootloaderData - context->buffer;
+          dataToWrite = bootloaderData;
+          bytesToWrite = bootloaderSize;
+          DEBUG_PRINTF_P(PSTR("Skipping %d bytes of partition table data\n"), partitionTableSize);
+        }
+
+        DEBUG_PRINTF_P(PSTR("Bootloader validation passed - writing %d bytes to flash at 0x%04X\n"),
+                       bytesToWrite, flashOffset);
+
+        // Calculate erase size (must be multiple of 4KB)
+        size_t eraseSize = ((bytesToWrite + 0xFFF) / 0x1000) * 0x1000;
+        if (eraseSize > context->maxBootloaderSize) {
+          eraseSize = context->maxBootloaderSize;
+        }
+
+        // Erase bootloader region
+        DEBUG_PRINTF_P(PSTR("Erasing %d bytes at 0x%04X...\n"), eraseSize, flashOffset);
+        esp_err_t err = esp_flash_erase_region(NULL, flashOffset, eraseSize);
+        if (err != ESP_OK) {
+          DEBUG_PRINTF_P(PSTR("Bootloader erase error: %d\n"), err);
+          context->errorMessage = "Flash erase failed (error code: " + String(err) + ")";
+        } else {
+          // Write the validated bootloader data to flash
+          err = esp_flash_write(NULL, dataToWrite, flashOffset, bytesToWrite);
+          if (err != ESP_OK) {
+            DEBUG_PRINTF_P(PSTR("Bootloader flash write error: %d\n"), err);
+            context->errorMessage = "Flash write failed (error code: " + String(err) + ")";
+          } else {
+            DEBUG_PRINTF_P(PSTR("Bootloader Update Success - %d bytes written to 0x%04X\n"),
+                           bytesToWrite, flashOffset);
+            // Invalidate cached bootloader hash
+            invalidateBootloaderSHA256Cache();
+            context->uploadComplete = true;
+          }
+        }
+      }
+    } else if (context->bytesBuffered == 0) {
+      context->errorMessage = "No bootloader data received";
+    }
+  }
+}
+#endif
@@ -0,0 +1,114 @@
+//  WLED OTA update interface
+
+#include <Arduino.h>
+#ifdef ESP8266
+  #include <Updater.h>
+#else
+   #include <Update.h>
+#endif
+
+#pragma once
+
+// Platform-specific metadata locations
+#ifdef ESP32
+#define BUILD_METADATA_SECTION ".rodata_custom_desc"
+#elif defined(ESP8266)
+#define BUILD_METADATA_SECTION ".ver_number"
+#endif
+
+
+class AsyncWebServerRequest;
+
+/**
+ *  Create an OTA context object on an AsyncWebServerRequest
+ * @param request Pointer to web request object
+ * @return true if allocation was successful, false if not
+ */
+bool initOTA(AsyncWebServerRequest *request);
+
+/**
+ *  Indicate to the OTA subsystem that a reply has already been generated
+ * @param request Pointer to web request object
+ */
+void setOTAReplied(AsyncWebServerRequest *request);
+
+/**
+ *  Retrieve the OTA result.
+ * @param request Pointer to web request object
+ * @return bool indicating if a reply is necessary; string with error message if the update failed.
+ */
+std::pair<bool, String> getOTAResult(AsyncWebServerRequest *request);
+
+/**
+ *  Process a block of OTA data.  This is a passthrough of an ArUploadHandlerFunction.
+ * Requires that initOTA be called on the handler object before any work will be done.
+ * @param request Pointer to web request object
+ * @param index Offset in to uploaded file
+ * @param data New data bytes
+ * @param len Length of new data bytes
+ * @param isFinal Indicates that this is the last block
+ * @return bool indicating if a reply is necessary; string with error message if the update failed.
+ */
+void handleOTAData(AsyncWebServerRequest *request, size_t index, uint8_t *data, size_t len, bool isFinal);
+
+#if defined(ARDUINO_ARCH_ESP32) && !defined(WLED_DISABLE_OTA)
+/**
+ * Calculate and cache the bootloader SHA256 digest
+ * Reads the bootloader from flash at offset 0x1000 and computes SHA256 hash
+ */
+void calculateBootloaderSHA256();
+
+/**
+ * Get bootloader SHA256 as hex string
+ * @return String containing 64-character hex representation of SHA256 hash
+ */
+String getBootloaderSHA256Hex();
+
+/**
+ * Invalidate cached bootloader SHA256 (call after bootloader update)
+ * Forces recalculation on next call to calculateBootloaderSHA256 or getBootloaderSHA256Hex
+ */
+void invalidateBootloaderSHA256Cache();
+
+/**
+ * Verify complete buffered bootloader using ESP-IDF validation approach
+ * This matches the key validation steps from esp_image_verify() in ESP-IDF
+ * @param buffer Reference to pointer to bootloader binary data (will be adjusted if offset detected)
+ * @param len Reference to length of bootloader data (will be adjusted to actual size)
+ * @param bootloaderErrorMsg Pointer to String to store error message (must not be null)
+ * @return true if validation passed, false otherwise
+ */
+bool verifyBootloaderImage(const uint8_t* &buffer, size_t &len, String* bootloaderErrorMsg);
+
+/**
+ * Create a bootloader OTA context object on an AsyncWebServerRequest
+ * @param request Pointer to web request object
+ * @return true if allocation was successful, false if not
+ */
+bool initBootloaderOTA(AsyncWebServerRequest *request);
+
+/**
+ * Indicate to the bootloader OTA subsystem that a reply has already been generated
+ * @param request Pointer to web request object
+ */
+void setBootloaderOTAReplied(AsyncWebServerRequest *request);
+
+/**
+ * Retrieve the bootloader OTA result.
+ * @param request Pointer to web request object
+ * @return bool indicating if a reply is necessary; string with error message if the update failed.
+ */
+std::pair<bool, String> getBootloaderOTAResult(AsyncWebServerRequest *request);
+
+/**
+ * Process a block of bootloader OTA data. This is a passthrough of an ArUploadHandlerFunction.
+ * Requires that initBootloaderOTA be called on the handler object before any work will be done.
+ * @param request Pointer to web request object
+ * @param index Offset in to uploaded file
+ * @param data New data bytes
+ * @param len Length of new data bytes
+ * @param isFinal Indicates that this is the last block
+ */
+void handleBootloaderOTAData(AsyncWebServerRequest *request, size_t index, uint8_t *data, size_t len, bool isFinal);
+#endif
+
@@ -1,6 +1,16 @@
 #include "wled.h"
 #include "fcn_declare.h"
 #include "const.h"
+#ifdef ESP8266
+#include "user_interface.h" // for bootloop detection
+#else
+#include <Update.h>
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 4, 0)
+  #include "esp32/rtc.h"    // for bootloop detection
+#elif ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(3, 3, 0)
+  #include "soc/rtc.h"
+#endif
+#endif


 //helper to get int value at a position in string
@@ -594,3 +604,144 @@ uint8_t get_random_wheel_index(uint8_t pos) {
 float mapf(float x, float in_min, float in_max, float out_min, float out_max) {
  return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
 }
+
+// bootloop detection and handling
+// checks if the ESP reboots multiple times due to a crash or watchdog timeout
+// if a bootloop is detected: restore settings from backup, then reset settings, then switch boot image (and repeat)
+
+#define BOOTLOOP_INTERVAL_MILLIS 120000  // time limit between crashes: 120 seconds (2 minutes)
+#define BOOTLOOP_THRESHOLD       5     // number of consecutive crashes to trigger bootloop detection
+#define BOOTLOOP_ACTION_RESTORE  0     // default action: restore config from /bkp.cfg.json
+#define BOOTLOOP_ACTION_RESET    1     // if restore does not work, reset config (rename /cfg.json to /rst.cfg.json)
+#define BOOTLOOP_ACTION_OTA      2     // swap the boot partition
+#define BOOTLOOP_ACTION_DUMP     3     // nothing seems to help, dump files to serial and reboot (until hardware reset)
+
+// Platform-agnostic abstraction
+enum class ResetReason {
+  Power,
+  Software,
+  Crash,
+  Brownout
+};
+
+#ifdef ESP8266
+// Place variables in RTC memory via references, since RTC memory is not exposed via the linker in the Non-OS SDK
+// Use an offset of 32 as there's some hints that the first 128 bytes of "user" memory are used by the OTA system
+// Ref: https://github.com/esp8266/Arduino/blob/78d0d0aceacc1553f45ad8154592b0af22d1eede/cores/esp8266/Esp.cpp#L168
+static volatile uint32_t& bl_last_boottime = *(RTC_USER_MEM + 32);
+static volatile uint32_t& bl_crashcounter = *(RTC_USER_MEM + 33);
+static volatile uint32_t& bl_actiontracker = *(RTC_USER_MEM + 34);
+
+static inline ResetReason rebootReason() {
+  uint32_t resetReason = system_get_rst_info()->reason;
+  if (resetReason == REASON_EXCEPTION_RST
+      || resetReason == REASON_WDT_RST
+      || resetReason == REASON_SOFT_WDT_RST)
+      return ResetReason::Crash;
+  if (resetReason == REASON_SOFT_RESTART)
+    return ResetReason::Software;
+  return ResetReason::Power;
+}
+
+static inline uint32_t getRtcMillis() { return system_get_rtc_time() / 160; };  // rtc ticks ~160000Hz
+
+#else
+// variables in RTC_NOINIT memory persist between reboots (but not on hardware reset)
+RTC_NOINIT_ATTR static uint32_t bl_last_boottime;
+RTC_NOINIT_ATTR static uint32_t bl_crashcounter;
+RTC_NOINIT_ATTR static uint32_t bl_actiontracker;
+
+static inline ResetReason rebootReason() {
+  esp_reset_reason_t reason = esp_reset_reason();
+  if (reason == ESP_RST_BROWNOUT) return ResetReason::Brownout;
+  if (reason == ESP_RST_SW) return ResetReason::Software;
+  if (reason == ESP_RST_PANIC || reason == ESP_RST_WDT || reason == ESP_RST_INT_WDT || reason == ESP_RST_TASK_WDT) return ResetReason::Crash;
+  return ResetReason::Power;
+}
+
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 4, 0)
+static inline uint32_t getRtcMillis() { return esp_rtc_get_time_us() / 1000;  }
+#elif ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(3, 3, 0)
+static inline uint32_t getRtcMillis() { return rtc_time_slowclk_to_us(rtc_time_get(), rtc_clk_slow_freq_get_hz()) / 1000; }
+#endif
+
+void bootloopCheckOTA() { bl_actiontracker = BOOTLOOP_ACTION_OTA; } // swap boot image if bootloop is detected instead of restoring config
+
+#endif
+
+// detect bootloop by checking the reset reason and the time since last boot
+static bool detectBootLoop() {
+  uint32_t rtctime = getRtcMillis();
+  bool result = false;
+
+  switch(rebootReason()) {
+    case ResetReason::Power:
+      bl_actiontracker = BOOTLOOP_ACTION_RESTORE; // init action tracker if not an intentional reboot (e.g. from OTA or bootloop handler)
+      // fall through
+    case ResetReason::Software:
+      // no crash detected, reset counter
+      bl_crashcounter = 0;
+      break;
+
+    case ResetReason::Crash:
+    {
+      uint32_t rebootinterval = rtctime - bl_last_boottime;
+      if (rebootinterval < BOOTLOOP_INTERVAL_MILLIS) {
+        bl_crashcounter++;
+        if (bl_crashcounter >= BOOTLOOP_THRESHOLD) {
+          DEBUG_PRINTLN(F("!BOOTLOOP DETECTED!"));
+          bl_crashcounter = 0;
+          if(bl_actiontracker > BOOTLOOP_ACTION_DUMP) bl_actiontracker = BOOTLOOP_ACTION_RESTORE; // reset action tracker if out of bounds
+          result = true;
+        }
+      } else {
+        // Reset counter on long intervals to track only consecutive short-interval crashes
+        bl_crashcounter = 0;
+        // TODO: crash reporting goes here
+      }
+      break;
+    }
+
+    case ResetReason::Brownout:
+      // crash due to brownout can't be detected unless using flash memory to store bootloop variables
+      DEBUG_PRINTLN(F("brownout detected"));
+      //restoreConfig(); // TODO: blindly restoring config if brownout detected is a bad idea, need a better way (if at all)
+      break;
+  }
+
+  bl_last_boottime = rtctime; // store current runtime for next reboot
+
+  return result;
+}
+
+void handleBootLoop() {
+  DEBUG_PRINTF_P(PSTR("checking for bootloop: time %d, counter %d, action %d\n"), bl_last_boottime, bl_crashcounter, bl_actiontracker);
+  if (!detectBootLoop()) return; // no bootloop detected
+
+  switch(bl_actiontracker) {
+    case BOOTLOOP_ACTION_RESTORE:
+      restoreConfig();
+      ++bl_actiontracker;
+      break;
+    case BOOTLOOP_ACTION_RESET:
+      resetConfig();
+      ++bl_actiontracker;
+      break;
+    case BOOTLOOP_ACTION_OTA:
+#ifndef ESP8266
+      if(Update.canRollBack()) {
+        DEBUG_PRINTLN(F("Swapping boot partition..."));
+        Update.rollBack(); // swap boot partition
+      }
+      ++bl_actiontracker;
+      break;
+#else
+      // fall through
+#endif
+    case BOOTLOOP_ACTION_DUMP:
+      dumpFilesToSerial();
+      break;
+  }
+
+  ESP.restart(); // restart cleanly and don't wait for another crash
+}
@@ -1,6 +1,7 @@
 #define WLED_DEFINE_GLOBAL_VARS //only in one source file, wled.cpp!
 #include "wled.h"
 #include "wled_ethernet.h"
+#include "ota_update.h"
 #include <Arduino.h>

 #if defined(ARDUINO_ARCH_ESP32) && defined(WLED_DISABLE_BROWNOUT_DET)
@@ -164,9 +165,9 @@ void WLED::loop()
  if (millis() - heapTime > 15000) {
    uint32_t heap = ESP.getFreeHeap();
    if (heap < MIN_HEAP_SIZE && lastHeap < MIN_HEAP_SIZE) {
-      DEBUG_PRINTF_P(PSTR("Heap too low! %u\n"), heap);
-      forceReconnect = true;
+      DEBUG_PRINTF_P(PSTR("Heap too low! %u\n"), heap);      
      strip.resetSegments(); // remove all but one segments from memory
+      if (!Update.isRunning()) forceReconnect = true;
    } else if (heap < MIN_HEAP_SIZE) {
      DEBUG_PRINTLN(F("Heap low, purging segments."));
      strip.purgeSegments();
@@ -183,9 +184,9 @@ void WLED::loop()
    bool aligned = strip.checkSegmentAlignment(); //see if old segments match old bus(ses)
    BusManager::removeAll();
    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();
+    BusManager::setBrightness(scaledBri(bri)); // fix re-initialised bus' brightness #4005 and #4824
    doSerializeConfig = true;
  }
  if (loadLedmap >= 0) {
@@ -403,6 +404,9 @@ void WLED::setup()
    DEBUGFS_PRINTLN(F("FS failed!"));
    errorFlag = ERR_FS_BEGIN;
  }
+
+  handleBootLoop(); // check for bootloop and take action (requires WLED_FS)
+
 #ifdef WLED_ADD_EEPROM_SUPPORT
  else deEEP();
 #else
@@ -418,6 +422,11 @@ void WLED::setup()
  WLED_SET_AP_SSID(); // otherwise it is empty on first boot until config is saved
  multiWiFi.push_back(WiFiConfig(CLIENT_SSID,CLIENT_PASS)); // initialise vector with default WiFi

+  if(!verifyConfig()) {
+    if(!restoreConfig()) {
+      resetConfig();
+    }
+  }
  DEBUG_PRINTLN(F("Reading config"));
  bool needsCfgSave = deserializeConfigFromFS();
  DEBUG_PRINTF_P(PSTR("heap %u\n"), ESP.getFreeHeap());
@@ -7,7 +7,7 @@
 */

 // version code in format yymmddb (b = daily build)
-#define VERSION 2507300
+#define VERSION 2508020

 //uncomment this if you have a "my_config.h" file you'd like to use
 //#define WLED_USE_MY_CONFIG
@@ -183,10 +183,14 @@ using PSRAMDynamicJsonDocument = BasicJsonDocument<PSRAM_Allocator>;
 #include "FastLED.h"
 #include "const.h"
 #include "fcn_declare.h"
+#ifndef WLED_DISABLE_OTA
+  #include "ota_update.h"
+#endif
 #include "NodeStruct.h"
 #include "pin_manager.h"
 #include "bus_manager.h"
 #include "FX.h"
+#include "wled_metadata.h"

 #ifndef CLIENT_SSID
  #define CLIENT_SSID DEFAULT_CLIENT_SSID
@@ -259,16 +263,6 @@ using PSRAMDynamicJsonDocument = BasicJsonDocument<PSRAM_Allocator>;
 #define STRINGIFY(X) #X
 #define TOSTRING(X) STRINGIFY(X)

-#ifndef WLED_VERSION
-  #define WLED_VERSION dev
-#endif
-#ifndef WLED_RELEASE_NAME
-  #define WLED_RELEASE_NAME "Custom"
-#endif
-
-// Global Variable definitions
-WLED_GLOBAL char versionString[] _INIT(TOSTRING(WLED_VERSION));
-WLED_GLOBAL char releaseString[] _INIT(WLED_RELEASE_NAME); // must include the quotes when defining, e.g -D WLED_RELEASE_NAME=\"ESP32_MULTI_USREMODS\"
 #define WLED_CODENAME "Kōsen"

 // AP and OTA default passwords (for maximum security change them!)
@@ -697,10 +691,10 @@ WLED_GLOBAL bool receiveNotificationPalette    _INIT(true);       // apply palet
 WLED_GLOBAL bool receiveSegmentOptions         _INIT(false);      // apply segment options
 WLED_GLOBAL bool receiveSegmentBounds          _INIT(false);      // apply segment bounds (start, stop, offset)
 WLED_GLOBAL bool receiveDirect _INIT(true);                       // receive UDP/Hyperion realtime
-WLED_GLOBAL bool notifyDirect _INIT(false);                       // send notification if change via UI or HTTP API
-WLED_GLOBAL bool notifyButton _INIT(false);                       // send if updated by button or infrared remote
+WLED_GLOBAL bool notifyDirect _INIT(true);                        // send notification if change via UI or HTTP API
+WLED_GLOBAL bool notifyButton _INIT(true);                        // send if updated by button or infrared remote
 WLED_GLOBAL bool notifyAlexa  _INIT(false);                       // send notification if updated via Alexa
-WLED_GLOBAL bool notifyHue    _INIT(true);                        // send notification if Hue light changes
+WLED_GLOBAL bool notifyHue    _INIT(false);                       // send notification if Hue light changes
 #endif

 // effects
@@ -0,0 +1,195 @@
+#include "ota_update.h"
+#include "wled.h"
+#include "wled_metadata.h"
+
+#ifndef WLED_VERSION
+  #warning WLED_VERSION was not set - using default value of 'dev'
+  #define WLED_VERSION dev
+#endif
+#ifndef WLED_RELEASE_NAME
+  #warning WLED_RELEASE_NAME was not set - using default value of 'Custom'
+  #define WLED_RELEASE_NAME "Custom"
+#endif
+#ifndef WLED_REPO
+  // No warning for this one: integrators are not always on GitHub
+  #define WLED_REPO "unknown"
+#endif
+
+constexpr uint32_t WLED_CUSTOM_DESC_MAGIC = 0x57535453;  // "WSTS" (WLED System Tag Structure)
+constexpr uint32_t WLED_CUSTOM_DESC_VERSION = 2;    // v1 - original PR; v2 - "safe to update from" version
+
+// Compile-time validation that release name doesn't exceed maximum length
+static_assert(sizeof(WLED_RELEASE_NAME) <= WLED_RELEASE_NAME_MAX_LEN, 
+              "WLED_RELEASE_NAME exceeds maximum length of WLED_RELEASE_NAME_MAX_LEN characters");
+
+
+/**
+ * DJB2 hash function (C++11 compatible constexpr)
+ * Used for compile-time hash computation to validate structure contents
+ * Recursive for compile time: not usable at runtime due to stack depth
+ * 
+ * Note that this only works on strings; there is no way to produce a compile-time
+ * hash of a struct in C++11 without explicitly listing all the struct members.
+ * So for now, we hash only the release name.  This suffices for a "did you find 
+ * valid structure" check.
+ * 
+ */
+constexpr uint32_t djb2_hash_constexpr(const char* str, uint32_t hash = 5381) {
+    return (*str == '\0') ? hash : djb2_hash_constexpr(str + 1, ((hash << 5) + hash) + *str);
+}
+
+/**
+ * Runtime DJB2 hash function for validation
+ */
+inline uint32_t djb2_hash_runtime(const char* str) {
+    uint32_t hash = 5381;
+    while (*str) {
+        hash = ((hash << 5) + hash) + *str++;
+    }
+    return hash;
+}
+
+// ------------------------------------
+// GLOBAL VARIABLES
+// ------------------------------------
+// Structure instantiation for this build 
+const wled_metadata_t __attribute__((section(BUILD_METADATA_SECTION))) WLED_BUILD_DESCRIPTION = {
+    WLED_CUSTOM_DESC_MAGIC,                   // magic
+    WLED_CUSTOM_DESC_VERSION,                 // version 
+    TOSTRING(WLED_VERSION),
+    WLED_RELEASE_NAME,                        // release_name
+    std::integral_constant<uint32_t, djb2_hash_constexpr(WLED_RELEASE_NAME)>::value, // hash - computed at compile time; integral_constant enforces this
+    { 0, 0, 0 },  // All other platforms can update safely
+};
+
+static const char repoString_s[] PROGMEM = WLED_REPO;
+const __FlashStringHelper* repoString = FPSTR(repoString_s);
+
+static const char productString_s[] PROGMEM = WLED_PRODUCT_NAME;
+const __FlashStringHelper* productString = FPSTR(productString_s);
+
+static const char brandString_s [] PROGMEM = WLED_BRAND;
+const __FlashStringHelper* brandString = FPSTR(brandString_s);
+
+
+
+/**
+ * Extract WLED custom description structure from binary
+ * @param binaryData Pointer to binary file data
+ * @param dataSize Size of binary data in bytes
+ * @param extractedDesc Buffer to store extracted custom description structure
+ * @return true if structure was found and extracted, false otherwise
+ */
+bool findWledMetadata(const uint8_t* binaryData, size_t dataSize, wled_metadata_t* extractedDesc) {
+  if (!binaryData || !extractedDesc || dataSize < sizeof(wled_metadata_t)) {
+    return false;
+  }
+
+  for (size_t offset = 0; offset <= dataSize - sizeof(wled_metadata_t); offset++) {
+    if ((binaryData[offset]) == static_cast<char>(WLED_CUSTOM_DESC_MAGIC)) {
+      // First byte matched; check next in an alignment-safe way
+      uint32_t data_magic;
+      memcpy(&data_magic, binaryData + offset, sizeof(data_magic));
+      
+      // Check for magic number
+      if (data_magic == WLED_CUSTOM_DESC_MAGIC) {            
+        wled_metadata_t candidate;
+        memcpy(&candidate, binaryData + offset, sizeof(candidate));
+
+        // Found potential match, validate version
+        if (candidate.desc_version > WLED_CUSTOM_DESC_VERSION) {
+          DEBUG_PRINTF_P(PSTR("Found WLED structure at offset %u but version mismatch: %u\n"), 
+                        offset, candidate.desc_version);
+          continue;
+        }
+        
+        // Validate hash using runtime function
+        uint32_t expected_hash = djb2_hash_runtime(candidate.release_name);
+        if (candidate.hash != expected_hash) {
+          DEBUG_PRINTF_P(PSTR("Found WLED structure at offset %u but hash mismatch\n"), offset);
+          continue;
+        }
+        
+        // Valid structure found - copy entire structure
+        *extractedDesc = candidate;
+        
+        DEBUG_PRINTF_P(PSTR("Extracted WLED structure at offset %u: '%s'\n"), 
+                      offset, extractedDesc->release_name);
+        return true;
+      }
+    }
+  }
+  
+  DEBUG_PRINTLN(F("No WLED custom description found in binary"));
+  return false;
+}
+
+
+/**
+ * Check if OTA should be allowed based on release compatibility using custom description
+ * @param binaryData Pointer to binary file data (not modified)
+ * @param dataSize Size of binary data in bytes
+ * @param errorMessage Buffer to store error message if validation fails 
+ * @param errorMessageLen Maximum length of error message buffer
+ * @return true if OTA should proceed, false if it should be blocked
+ */
+
+bool shouldAllowOTA(const wled_metadata_t& firmwareDescription, char* errorMessage, size_t errorMessageLen) {
+  // Clear error message
+  if (errorMessage && errorMessageLen > 0) {
+    errorMessage[0] = '\0';
+  }
+
+  // Validate compatibility using extracted release name
+  // We make a stack copy so we can print it safely
+  char safeFirmwareRelease[WLED_RELEASE_NAME_MAX_LEN];
+  strncpy(safeFirmwareRelease, firmwareDescription.release_name, WLED_RELEASE_NAME_MAX_LEN - 1);
+  safeFirmwareRelease[WLED_RELEASE_NAME_MAX_LEN - 1] = '\0';
+  
+  if (strlen(safeFirmwareRelease) == 0) {
+    return false;
+  }  
+
+  if (strncmp_P(safeFirmwareRelease, releaseString, WLED_RELEASE_NAME_MAX_LEN) != 0) {
+    if (errorMessage && errorMessageLen > 0) {
+      snprintf_P(errorMessage, errorMessageLen, PSTR("Firmware release name mismatch: current='%s', uploaded='%s'."), 
+               releaseString, safeFirmwareRelease);
+      errorMessage[errorMessageLen - 1] = '\0'; // Ensure null termination
+    }
+    return false;
+  }
+
+  if (firmwareDescription.desc_version > 1) {
+    // Add safe version check
+    // Parse our version (x.y.z) and compare it to the "safe version" array
+    const char* our_version = versionString;
+    for(unsigned v_index = 0; v_index < 3; ++v_index) {
+      char* our_version_end = nullptr;
+      long our_v_parsed = strtol(our_version, &our_version_end, 10); 
+      if (!our_version_end || (our_version_end == our_version)) {
+        // We were built with a malformed version string
+        // We blame the integrator and attempt the update anyways - nothing the user can do to fix this
+        break;
+      }
+
+      if (firmwareDescription.safe_update_version[v_index] > our_v_parsed) {
+        if (errorMessage && errorMessageLen > 0) {
+          snprintf_P(errorMessage, errorMessageLen, PSTR("Cannot update from this version: requires at least %d.%d.%d, current='%s'."), 
+                  firmwareDescription.safe_update_version[0], firmwareDescription.safe_update_version[1], firmwareDescription.safe_update_version[2],
+                  versionString);
+          errorMessage[errorMessageLen - 1] = '\0'; // Ensure null termination
+        }
+        return false;
+      } else if (firmwareDescription.safe_update_version[v_index] < our_v_parsed) {
+        break;  // no need to check the other components
+      }
+
+      if (*our_version_end == '.') ++our_version_end;
+      our_version = our_version_end;
+    }  
+  }
+
+  // TODO: additional checks go here
+
+  return true;
+}
@@ -0,0 +1,62 @@
+/*
+  WLED build metadata
+
+  Manages and exports information about the current WLED build.
+*/
+
+
+#pragma once
+
+#include <cstdint>
+#include <string.h>
+#include <WString.h>
+
+#define WLED_VERSION_MAX_LEN 48
+#define WLED_RELEASE_NAME_MAX_LEN 48
+
+/**
+ * WLED Custom Description Structure
+ * This structure is embedded in platform-specific sections at an approximately
+ * fixed offset in ESP32/ESP8266 binaries, where it can be found and validated 
+ * by the OTA process.
+ */
+typedef struct {
+    uint32_t magic;               // Magic number to identify WLED custom description
+    uint32_t desc_version;        // Structure version for future compatibility
+    char wled_version[WLED_VERSION_MAX_LEN];
+    char release_name[WLED_RELEASE_NAME_MAX_LEN]; // Release name (null-terminated)    
+    uint32_t hash;               // Structure sanity check
+    uint8_t safe_update_version[3]; // Indicates version it's known to be safe to install this update from: major, minor, patch
+} __attribute__((packed)) wled_metadata_t;
+
+
+// Global build description
+extern const wled_metadata_t WLED_BUILD_DESCRIPTION;
+
+// Convenient metdata pointers
+#define versionString (WLED_BUILD_DESCRIPTION.wled_version)   // Build version, WLED_VERSION
+#define releaseString (WLED_BUILD_DESCRIPTION.release_name)   // Release name,  WLED_RELEASE_NAME
+extern const __FlashStringHelper* repoString;                       // Github repository (if available)
+extern const __FlashStringHelper* productString;                    // Product, WLED_PRODUCT_NAME -- deprecated, use WLED_RELEASE_NAME
+extern const __FlashStringHelper* brandString ;                     // Brand
+
+
+// Metadata analysis functions
+
+/**
+ * Extract WLED custom description structure from binary data
+ * @param binaryData Pointer to binary file data
+ * @param dataSize Size of binary data in bytes
+ * @param extractedDesc Buffer to store extracted custom description structure
+ * @return true if structure was found and extracted, false otherwise
+ */
+bool findWledMetadata(const uint8_t* binaryData, size_t dataSize, wled_metadata_t* extractedDesc);
+
+/**
+ * Check if OTA should be allowed based on release compatibility
+ * @param firmwareDescription Pointer to firmware description
+ * @param errorMessage Buffer to store error message if validation fails 
+ * @param errorMessageLen Maximum length of error message buffer
+ * @return true if OTA should proceed, false if it should be blocked
+ */
+bool shouldAllowOTA(const wled_metadata_t& firmwareDescription, char* errorMessage, size_t errorMessageLen);
@@ -1,5 +1,8 @@
 #include "wled.h"

+#ifndef WLED_DISABLE_OTA
+  #include "ota_update.h"  
+#endif
 #include "html_ui.h"
 #include "html_settings.h"
 #include "html_other.h"
@@ -16,6 +19,7 @@ static const char s_redirecting[] PROGMEM = "Redirecting...";
 static const char s_content_enc[] PROGMEM = "Content-Encoding";
 static const char s_unlock_ota [] PROGMEM = "Please unlock OTA in security settings!";
 static const char s_unlock_cfg [] PROGMEM = "Please unlock settings using PIN code!";
+static const char s_rebooting  [] PROGMEM = "Rebooting now...";
 static const char s_notimplemented[] PROGMEM = "Not implemented";
 static const char s_accessdenied[]   PROGMEM = "Access Denied";
 static const char _common_js[]       PROGMEM = "/common.js";
@@ -375,49 +379,40 @@ void initServer()
  });

  server.on(_update, HTTP_POST, [](AsyncWebServerRequest *request){
-    if (!correctPIN) {
-      serveSettings(request, true); // handle PIN page POST request
-      return;
-    }
-    if (otaLock) {
-      serveMessage(request, 401, FPSTR(s_accessdenied), FPSTR(s_unlock_ota), 254);
-      return;
-    }
-    if (Update.hasError()) {
-      serveMessage(request, 500, F("Update failed!"), F("Please check your file and retry!"), 254);
-    } else {
-      serveMessage(request, 200, F("Update successful!"), F("Rebooting..."), 131);
-      doReboot = true;
-    }
-  },[](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){
-    if (!correctPIN || otaLock) return;
-    if(!index){
-      DEBUG_PRINTLN(F("OTA Update Start"));
-      #if WLED_WATCHDOG_TIMEOUT > 0
-      WLED::instance().disableWatchdog();
-      #endif
-      UsermodManager::onUpdateBegin(true); // notify usermods that update is about to begin (some may require task de-init)
-      lastEditTime = millis(); // make sure PIN does not lock during update
-      strip.suspend();
-      #ifdef ESP8266
-      strip.resetSegments();  // free as much memory as you can
-      Update.runAsync(true);
-      #endif
-      Update.begin((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000);
-    }
-    if(!Update.hasError()) Update.write(data, len);
-    if(final){
-      if(Update.end(true)){
-        DEBUG_PRINTLN(F("Update Success"));
-      } else {
-        DEBUG_PRINTLN(F("Update Failed"));
-        strip.resume();
-        UsermodManager::onUpdateBegin(false); // notify usermods that update has failed (some may require task init)
-        #if WLED_WATCHDOG_TIMEOUT > 0
-        WLED::instance().enableWatchdog();
-        #endif
+    if (request->_tempObject) {
+      auto ota_result = getOTAResult(request);
+      if (ota_result.first) {
+        if (ota_result.second.length() > 0) {
+          serveMessage(request, 500, F("Update failed!"), ota_result.second, 254);
+        } else {
+          serveMessage(request, 200, F("Update successful!"), FPSTR(s_rebooting), 131);
+        }
      }
+    } else {
+      // No context structure - something's gone horribly wrong
+      serveMessage(request, 500, F("Update failed!"), F("Internal server fault"), 254);
    }
+  },[](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool isFinal){
+    if (index == 0) { 
+      // Allocate the context structure
+      if (!initOTA(request)) {
+        return; // Error will be dealt with after upload in response handler, above
+      }
+
+      // Privilege checks
+      if (!correctPIN) {
+        serveMessage(request, 401, FPSTR(s_accessdenied), FPSTR(s_unlock_cfg), 254);
+        setOTAReplied(request);
+        return;
+      };
+      if (otaLock) {
+        serveMessage(request, 401, FPSTR(s_accessdenied), FPSTR(s_unlock_ota), 254);
+        setOTAReplied(request);
+        return;
+      }      
+    }
+
+    handleOTAData(request, index, data, len, isFinal);
  });
 #else
  server.on(_update, HTTP_GET, [](AsyncWebServerRequest *request){
@@ -425,6 +420,45 @@ void initServer()
  });
 #endif

+#if defined(ARDUINO_ARCH_ESP32) && !defined(WLED_DISABLE_OTA)
+  // ESP32 bootloader update endpoint
+  server.on(F("/updatebootloader"), HTTP_POST, [](AsyncWebServerRequest *request){
+    if (request->_tempObject) {
+      auto bootloader_result = getBootloaderOTAResult(request);
+      if (bootloader_result.first) {
+        if (bootloader_result.second.length() > 0) {
+          serveMessage(request, 500, F("Bootloader update failed!"), bootloader_result.second, 254);
+        } else {
+          serveMessage(request, 200, F("Bootloader updated successfully!"), FPSTR(s_rebooting), 131);
+        }
+      }
+    } else {
+      // No context structure - something's gone horribly wrong
+      serveMessage(request, 500, F("Bootloader update failed!"), F("Internal server fault"), 254);
+    }
+  },[](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool isFinal){
+    if (index == 0) {
+      // Privilege checks
+      if (!correctPIN) {
+        serveMessage(request, 401, FPSTR(s_accessdenied), FPSTR(s_unlock_cfg), 254);
+        setBootloaderOTAReplied(request);
+        return;
+      }
+      if (otaLock) {
+        serveMessage(request, 401, FPSTR(s_accessdenied), FPSTR(s_unlock_ota), 254);
+        setBootloaderOTAReplied(request);
+        return;
+      }
+
+      // Allocate the context structure
+      if (!initBootloaderOTA(request)) {
+        return; // Error will be dealt with after upload in response handler, above
+      }
+    }
+
+    handleBootloaderOTAData(request, index, data, len, isFinal);
+  });
+#endif

 #ifdef WLED_ENABLE_DMX
  server.on(F("/dmxmap"), HTTP_GET, [](AsyncWebServerRequest *request){
@@ -26,7 +26,8 @@ void XML_response(Print& dest)
  );
 }

-static void extractPin(Print& settingsScript, JsonObject &obj, const char *key) {
+static void extractPin(Print& settingsScript, JsonObject &obj, const char *key)
+{
  if (obj[key].is<JsonArray>()) {
    JsonArray pins = obj[key].as<JsonArray>();
    for (JsonVariant pv : pins) {
@@ -37,6 +38,22 @@ static void extractPin(Print& settingsScript, JsonObject &obj, const char *key)
  }
 }

+void fillWLEDVersion(char *buf, size_t len)
+{
+  if (!buf || len == 0) return;
+
+  snprintf_P(buf,len,PSTR("WLED %s (%d)<br>\\\"%s\\\"<br>(Processor: %s)"),
+    versionString,
+    VERSION,
+    releaseString,
+  #if defined(ARDUINO_ARCH_ESP32)
+    ESP.getChipModel()
+  #else
+    "ESP8266"
+  #endif
+  );
+}
+
 // print used pins by scanning JsonObject (1 level deep)
 static void fillUMPins(Print& settingsScript, JsonObject &mods)
 {
@@ -72,7 +89,8 @@ static void fillUMPins(Print& settingsScript, JsonObject &mods)
  }
 }

-void appendGPIOinfo(Print& settingsScript) {
+void appendGPIOinfo(Print& settingsScript)
+{
  settingsScript.print(F("d.um_p=[-1")); // has to have 1 element
  if (i2c_sda > -1 && i2c_scl > -1) {
    settingsScript.printf_P(PSTR(",%d,%d"), i2c_sda, i2c_scl);
@@ -580,7 +598,7 @@ void getSettingsJS(byte subPage, Print& settingsScript)
    printSetFormCheckbox(settingsScript,PSTR("OW"),wifiLock);
    printSetFormCheckbox(settingsScript,PSTR("AO"),aOtaEnabled);
    char tmp_buf[128];
-    snprintf_P(tmp_buf,sizeof(tmp_buf),PSTR("WLED %s (build %d)"),versionString,VERSION);
+    fillWLEDVersion(tmp_buf,sizeof(tmp_buf));
    printSetClassElementHTML(settingsScript,PSTR("sip"),0,tmp_buf);
    settingsScript.printf_P(PSTR("sd=\"%s\";"), serverDescription);
  }
@@ -632,22 +650,6 @@ void getSettingsJS(byte subPage, Print& settingsScript)
    UsermodManager::appendConfigData(settingsScript);
  }

-  if (subPage == SUBPAGE_UPDATE) // update
-  {
-    char tmp_buf[128];
-    snprintf_P(tmp_buf,sizeof(tmp_buf),PSTR("WLED %s<br>%s<br>(%s build %d)"),
-      versionString,
-      releaseString,
-    #if defined(ARDUINO_ARCH_ESP32)
-      ESP.getChipModel(),
-    #else
-      "esp8266",
-    #endif
-      VERSION);
-
-    printSetClassElementHTML(settingsScript,PSTR("sip"),0,tmp_buf);
-  }
-
  if (subPage == SUBPAGE_2D) // 2D matrices
  {
    printSetFormValue(settingsScript,PSTR("SOMP"),strip.isMatrix);
Author	SHA1	Message	Date
Will Tatam	202144a32e	Firmware upgrade requires tasmota	2025-11-09 18:43:13 +00:00
Will Tatam	08ccfe5697	Merge pull request #4984 from wled/copilot/fix-d4f5fc55-f916-458a-9155-deb9bbff6662 Add ESP32 bootloader upgrade capability to OTA update page with JSON API support and ESP-IDF validation	2025-11-09 18:11:24 +00:00
Will Tatam	c8bda1abee	Bump version from 0.15.2-beta1 to 0.15.2-beta2	2025-11-09 15:42:42 +00:00
Will Tatam	0d911e93bc	Merge pull request #5058 from willmmiles/0_15_x-update-source-version-check 0.15: Add old version check to OTA update	2025-11-09 14:34:48 +00:00
Will Miles	5a9bdad2ec	Relax self update requirements Apply no restrictions in the 0.15 release line.	2025-11-08 19:33:13 -05:00
Will Miles	379f9c9ffa	Implement correct update version check	2025-11-08 19:25:46 -05:00
Will Miles	4750ac5010	Add source version check to OTA update Add a field to the OTA metadata structure indicating the oldest base version it's safe to install this update /from/. This provides a clear path forward in case there are incompatibilities, eg. some case (bootloader compatibility) where 0.16.0 cannot be installed safely from 0.15.2, but a transitional 0.15.3 can arrange the groundwork.	2025-11-08 19:02:14 -05:00
Will Miles	0bc64b49b6	Fix unaligned reads during metadata search	2025-11-08 19:02:07 -05:00
Will Miles	2d0771fcaf	Merge pull request #4840 from DedeHai/0_15_x_bootloopdetect Backport of Bootloop detection & recovery (#4793)	2025-11-08 17:41:03 -05:00
Will Tatam	1706fdce3d	Merge pull request #5007 from benjamw/twinkle_fixes_15_x Fix blank area issue with Twinkle	2025-11-08 20:46:02 +00:00
Damian Schneider	7d0a338058	re-adding bootloop handling to ota_update	2025-11-08 20:27:00 +01:00
Damian Schneider	319edc7ad4	Merge branch '0_15_x' into 0_15_x_bootloopdetect	2025-11-08 20:18:57 +01:00
Will Tatam	90b1912fea	Merge pull request #5034 from willmmiles/0_15_x-fix-4929 0.15 - Fix bin file output names	2025-11-07 09:52:58 +00:00
Will Miles	9a32fea1a5	Always use package.json for WLED_VERSION Ensures consistency between UI and metadata; fixes release bin names.	2025-10-26 17:53:27 -04:00
Will Tatam	ab3cf4aa4d	Merge pull request #4999 from willmmiles/0_15_x-fix-4929 0.15 version of OTA validation	2025-10-25 19:00:19 +01:00
Will Miles	14ffde4fed	Fix bad backport merge on update.htm	2025-10-25 13:50:27 -04:00
Will Miles	114f85f95e	set_metadata: Apply code fixes from @coderabbit	2025-10-25 13:46:54 -04:00
Will Miles	d37cae8ad9	Fix set_metadata script	2025-10-25 13:46:54 -04:00
Will Miles	7b872bfff6	Fix metadata includes	2025-10-25 13:46:54 -04:00
benjamw	7e8bb20560	Fix blank area issue with Twinkle	2025-10-16 22:30:51 -06:00
Will Miles	b552744a07	Process metadata only in metadata.cpp Improves cache utilization as fewer things are passed via CFLAGS to all files. In the event that no metadata is available, let the cpp file handle warning about default usage.	2025-10-11 10:51:36 -04:00
copilot-swe-agent[bot]	3029a4e735	Implement OTA release compatibility checking system Implement a comprehensive solution for validating a firmware before an OTA updated is committed. WLED metadata such as version and release is moved to a data structure located at near the start of the firmware binary, where it can be identified and validated. Co-authored-by: netmindz <442066+netmindz@users.noreply.github.com>	2025-10-11 10:51:20 -04:00
Damian Schneider	c756a12880	fix buffer size calculation for ESP8266 (0.15 edition) (#4951 ) * fix buffer size calculation for ESP8266 also adds proper global buffer calculation and RMT/I2S channel calculation thx to @blazoncek	2025-10-10 20:40:14 +02:00
Damian Schneider	d12bf77831	add out of bound check for action tracker In my test on ESP32 the tracker startet out as a huge number, this brings it back on track	2025-10-09 22:06:17 +02:00
Will Miles	4cee97561f	Merge pull request #4980 from willmmiles/0_15_x_rmthi (0.15) RMT High-priority Interrupt driver backport	2025-10-05 11:20:42 -04:00
Will Miles	3e80c2ce40	RmtHI: Add missing includes While these were both fortunately included in Arduino.h, as @coderabbitai suggests, it's best practice to be explicit for anything one uses directly.	2025-10-04 17:12:12 -04:00
Will Miles	32fccb6a34	Undo RMTHi change to platformio.ini PlatformIO's Library Dependency Finder will take care of it based on the #include.	2025-10-04 17:12:12 -04:00
Will Miles	139f4d949f	RmtHI: Fix incorrect method typedefs	2025-10-04 17:11:56 -04:00
Will Miles	b762704d37	RmtHI: Remove incorrect default selection block	2025-10-04 17:11:56 -04:00
Will Miles	37612e56eb	Import RmtHI driver Pull the RMT High-priority Interrupt driver in to a vendored local library, pending inclusion in upstream NeoPixelBus. Driver is enabled only for XTensa chips; there's some unresolved issue with nested interrupts on RISCV.	2025-10-04 17:11:44 -04:00
Damian Schneider	a50f12d000	Merge pull request #4918 from wled/tricolor-fix-015 Bugfix for FX: Tri Fade	2025-09-28 19:53:16 +02:00
Damian Schneider	0516dfed78	bugfix: do not reset segments if unchanged #4969 lines were swapped, causing segment reset on every preset call.	2025-09-28 17:06:31 +02:00
Damian Schneider	5a52f4a4cd	do not mark for reset if boundsUnchanged.	2025-09-28 16:58:42 +02:00
Will Miles	d935975ec1	Increase boot loop timeout Any repeating crash that prevents a human from logging in and fixing the config should be treated as a boot loop. Increase the detection timeout, so anything that's fast enough to preclude a user fix will trigger the recovery behaviour.	2025-09-23 22:25:02 -04:00
Will Miles	ce5f6d7019	Reset crash counter after long interval Don't treat consecutive but infrequent crashes as bootloops. The bootloop recovery actions only make sense when there is no opportunity for a user to reconfigure their system. Suggested by @coderabbitai	2025-09-23 22:25:02 -04:00
Will Miles	430a82af85	Bootloop: Include soft wdt on ESP8266	2025-09-23 22:25:02 -04:00
Will Miles	69263c198a	Isolate platform differences in bootloop check Separate the platform-specific code from the logic, so any future changes can be made in fewer places.	2025-09-23 22:25:02 -04:00
Will Miles	e82b519c92	Use direct references to RTC RAM on ESP8266 ESP8266 RTC RAM requires 32-bit accesses, but there's no need to jump through a bunch of functions for it. Use references to simplify access and harmonize the implementation with ESP32.	2025-09-23 22:25:02 -04:00
Will Miles	ed496fb426	Add a little more PSTR to bootloop handling	2025-09-23 22:24:55 -04:00
Will Miles	66573be212	Use consistent naming for backups and reset cfgs Use 'rst.cfg.json' instead of 'cfg.json.rst.json' for configs that were reset.	2025-09-23 22:24:55 -04:00
Will Miles	4cdaa57dce	ESP8266: Commit ACTIONT_TRACKER	2025-09-23 22:24:55 -04:00
Will Miles	79762f45b2	Fix bootloop if config missing/reset Can't reset the config if there's nothing to reset!	2025-09-23 22:24:55 -04:00
Blaž Kristan	fc35f0aab2	Bugfix for FX: Tri Fade - incorrectly calculated counter and progress	2025-09-08 11:40:57 +02:00
Damian Schneider	68a853455d	Merge pull request #4914 from DedeHai/percentFX_UI_fix_015 fix ancient UI bug that hides the speed slider in percent FX 0.15 edition	2025-09-07 20:34:36 +02:00
Damian Schneider	c24f67c479	fix ancient bug in percent FX	2025-09-05 19:55:21 +02:00
netmindz	d1763024bf	Merge pull request #4845 from Arcitec/0_15_x-fix-sync (0.15.2 backport) Fix broken Sync button after 0.15 refactor	2025-08-31 12:30:37 +01:00
netmindz	b155f80dc7	Merge pull request #4849 from Arcitec/0_15_x-improve-version-info (0.15.2 backport): Make version information consistent across update interfaces	2025-08-20 07:02:01 +01:00
Arcitec	2df536c0a4	0.15.x: Make version information consistent across update interfaces The duplication of logic and the formatting differences between the "OTA Updates" and "Security & Updates" pages made it very difficult to find the exact version details. With this change, both update-pages now share the same consistent and detailed formatting, making it easy for users to identify which exact version and binary of WLED they've installed. The version format has also been improved to make it much easier to understand.	2025-08-19 18:27:02 +02:00
Arcitec	dba31cb433	Fix broken Sync button after 0.15 refactor In the past, the "notify direct" flag controlled all network syncing, propagating all color changes to other devices on the network. Pressing the UI Sync button only toggled this flag, so "notify direct" was set to false by default. In version 0.15, a separate "master" sync flag was introduced, and the UI Sync button now only activates this master flag. However, the rest of the flag defaults weren't configured to sync anything at all. As a result, users pressing Sync saw no syncing at all, leading to multiple bug reports. Defaults are now user-friendly: Enabling Sync on a WLED device syncs all of its color changes, whether made via the UI, API or remote button, providing a consistent experience which matches the intended behavior from past WLED versions. Philips Hue sync is now also disabled by default, making the stock defaults focused on WLED devices. Users with other RGB ecosystems can manually enable the Hue or Alexa syncing in the settings.	2025-08-17 18:15:12 +02:00
Damian Schneider	501b6e7de5	fix compile error brought in from upstream	2025-08-16 09:11:52 +02:00
Damian Schneider	693f3b0b04	add IDF V3 support for bootloop detection	2025-08-16 08:46:52 +02:00
Damian Schneider	f6d1f3b433	Bootloop detection & recovery (#4793 ) * added boot loop detection and config backup * automatic OTA rollback if loading backup does not fix it * added new file handling functions * adding verification of json files, added config restore at bootup if broken * added function to compare contents of two files for future use (currently not used)	2025-08-15 20:50:26 +02:00
netmindz	7a52144e98	Merge pull request #4834 from willmmiles/0_15_x_wsonly 0.15 - updated AsyncWebServer and AsyncTCP	2025-08-13 06:41:28 +01:00
Will Miles	9c82add757	Downtune AsyncTCP stack size We downtuned the stack usage of AsyncTCP, and at some point in the history of our fork, this got folded in to the default. Re-apply the stack size we've been using and recover that RAM.	2025-08-10 09:05:24 -04:00
Will Miles	4e1ca9be49	Update to AsyncTCP 3.4.7 Bugfix on 3.4.6	2025-08-10 09:05:15 -04:00
Will Miles	a9f52a132b	Update AsyncWebServer and AsyncTCP This should fix (or at least improve) some of the crash cases under excessive web server load.	2025-08-10 09:04:31 -04:00
Damian Schneider	0ecae7e831	Bugfix for brightness factor upon save: fixes #4824 (#4827 )	2025-08-09 10:20:01 +02:00
Will Tatam	a24d4bc7e9	Revert "Revert NeoPixelBus back to 2.8.0 due to flicker issues" Not possible in isolation as code depends on newer version This reverts commit `b6d9aad6b4`.	2025-08-02 17:00:33 +01:00
Will Tatam	26080b23b1	0.15.2-beta1	2025-08-02 16:58:22 +01:00
Will Tatam	b6d9aad6b4	Revert NeoPixelBus back to 2.8.0 due to flicker issues	2025-08-02 16:55:47 +01:00