Mirroring on-board RGB LED to external LED

[UMD]

@mikelo I think @kennethlimcp is referring to unreleased/development firmware.

I was referred to the following post in relation to mirroring the RGB LED to an external LED, but alas, set_rgb_led_change_handler() would not compile for me either. Once again, sounds like it is not in the current release...

Best way to implement an outboard bright RGB LED

Alternatively, there is a RGB.onChange() function that will call your own handler each time the LED is updated. This allows you to then set external PWM signals to match the RGB values given. https://docs.particle.io/reference/firmware/photon/#onchange-handler- The RGB values echo exactly the color that is shown on the onboard LED, whether that’s set by the system or the user.

Let us know if you find a solution....