Where does the fancy RBG light control come from?

[linfan68]

I have a question about the RGB LED on the board. Every time I use the ESP32 development board, the RGB LED on the board is driven and slowly changes color. What is this feature for and how can I adjust or turn off this feature?

[mkellner]

In the manifest.json for the device (ie. in $MODDABLE/build/devices/esp32/targets/esp32s3/manifest.json), you can turn off the rainbow effect by setting it to false.

        "led": {
            ...
            "rainbow": false,
            ...

[mkellner]

The action can be found in the default function of the device's setup-target.js.

export default function (done) {
    if (config.led?.rainbow){
        const neopixel = new Host.LED.Default;
        ...

[linfan68]

Just in case anyone needs this, the full manifest looks like this:

{
  "include": [
    "$(MODDABLE)/modules/io/manifest.json",
    "$(MODDABLE)/examples/manifest_typings.json",
    "$(MODDABLE)/modules/network/wifi/manifest.json",
    "$(MODDABLE)/examples/manifest_net.json",
    "$(MODULES)/network/http/manifest.json",
    "$(MODDABLE)/modules/data/base64/manifest.json",
    "$(MODDABLE)/modules/data/text/encoder/manifest.json",
    "$(MODDABLE)/modules/data/text/decoder/manifest.json",
    "$(MODDABLE)/modules/base/modules/manifest.json",
    "$(MODDABLE)/examples/manifest_base.json"
  ],
  "defines": {
    "XS_MODS": 1
  },
  "strip": [],
  "modules": {
    "*": [
      "./src/main"
    ]
  },
  "creation": {
    "keys": {
      "available": 128
    }
  },
  "config": {
    "led": {
      "rainbow": false
    }
  }
}