Best way to implement an outboard bright RGB LED

Hardware
1

Hi!

I would like to implement an RGB LED like the one that’s onboard the Photon, but I want this to be outside the project enclosure, and I will love to control it like I do the photon LED right now manually.

Any recommendations?

2

Look at docs.particle.io/photon/hardware/ for the 3 x RBG control pins exposed as pads on the bottom layer

Use the 3 pins for the PWM/analog (not sure which) signal.

I have been thinking about making this for an educational display for a scaled-up photon model. :wink:

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3

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.

4 Likes
4

Outstanding recommendations.

Thank you very much!

This is an incredible community!

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