Usage of RGB LED on m5stamp

ESPHome
1

I’m just getting started using ESPHome, and want to turn on the integrated SK6812 RGB LED on an m5stamp c3u. However, I’m struggling to find a compatible platform. With 'fastled_clockless` as shown below, I get “This feature is incompatible with esp-idf”.

light:
  - platform: fastled_clockless
    chipset: SK6812
    pin: 2
    num_leds: 1
    name: "LED"

Alternatively, if I use the rgb platform, I’m not sure what platform to use for the output component.

I’m not 100% sure of the pin either, as documentation for esp32-c3-devkitm-1 suggests gpio8, but m5stack’s site lists gpio2. But I’m getting stumped before that.

Do I need to wait until fastled supports esp-idl or write a custom light?

2

RGB is definitely not what you want.

3

I forgot to include that I tried that one too - it says it’s only compatible with Arduino.

4

As far as pin is concerned, it is not a esp32-c3-devkitm-1 so why use its pin allocations? I dare say m5stack know how they wired the device.

You could try the arduino stack I guess.

5

It is an esp-c3 - M5Stamp C3U (5pcs) | m5stack-store. I’ve got it working with the esp32-c3-devkitm-1 platform, just not the LED. But I’m trying the arduino stack now - yeah I get “this board does not support arduino framework”.

EDIT: With the following I can at least compile. I’m not sure how much of this is actually needed. Thanks for your help so far @nickrout

esphome:
  name: $name
  platformio_options:
    board_build.mcu: esp32c3
    platform_packages:
      - platformio/framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git#2.0.2

esp32:
  board: esp32-c3-devkitm-1
  variant: esp32c3
  framework:
    type: arduino
    version: 2.0.2
    platform_version: https://github.com/tasmota/platform-espressif32/releases/download/v2.0.2idf/platform-espressif32-2.0.2.zip
6

These esp32 variants, it is hard to keep up with what is supported. The platformio site now seems to say the c3 is supported by the esp-idf AND the arduino frameworks. PlatformIO Registry

7

Thanks for the link, I had not seen that. The m5stamp product line isn’t there though, and it’s RISC-V, which is different to the others. A lot of experimentation in my future I guess. And a lot of learning.

8

Risc-V but still esp32-c3

10 
esphome:
  name: m5stackc3
  friendly_name: M5stackC3
  platformio_options:
    board_build.flash_mode: dio

esp32:
  variant: ESP32C3
  board: esp32-c3-devkitm-1
  framework:
    type: esp-idf
    version: recommended

logger:
  hardware_uart: USB_SERIAL_JTAG

light:
  - platform: esp32_rmt_led_strip
    rgb_order: GRB
    pin: GPIO2
    num_leds: 1
    rmt_channel: 0
    chipset: SK6812
    name: "My Light"

got it working with this code