Trinket M0 RGB LEDS

Projects Programming
1

Hello,

The trinket M0 comes with RGB lights. These things are so bright that I see spots when I look away. I have tape over it, but it is really bugging me. I have to look for I/O on the board running test code to exercise hardware peripherals. I tried to look up the I/O they are attached to and tried in the compiler to shut them down without success. Any help would be appreciated.

2

Does this page help? It says it controls the onboard dotstar LED via Arduino IDE.

And this page uses CircuitPython.

Both found with a search for "The trinket M0 comes with RGB lights arduino ide".

5

I figured it out. Thanks for your help!

6

Please share your solution. Others may come upon this thread and your solution may be able to help them.

7

This turns off the RGB lights on Trinket M0 ONLY....Be careful what you get from mail order. I got one order that had half M0 and the other was Attiny85. They look nearly identical.

#include <Adafruit_DotStar.h>
// Because conditional #includes don't work w/Arduino sketches...
#include <SPI.h>         // COMMENT OUT THIS LINE FOR GEMMA OR TRINKET

#define NUMPIXELS 1 // Number of LEDs in strip

// Here's how to control the LEDs from any two pins:
#define DATAPIN   7
#define CLOCKPIN   8

Adafruit_DotStar strip = Adafruit_DotStar(
  NUMPIXELS, DATAPIN, CLOCKPIN, DOTSTAR_BGR);

// The last parameter is optional -- this is the color data order of the
// DotStar strip, which has changed over time in different production runs.
// Your code just uses R,G,B colors, the library then reassigns as needed.
// Default is DOTSTAR_BRG, so change this if you have an earlier strip.

// Hardware SPI is a little faster, but must be wired to specific pins
// (Arduino Uno = pin 11 for data, 13 for clock, other boards are different).
// Adafruit_DotStar strip = Adafruit_DotStar(NUMPIXELS, DOTSTAR_BRG);



void setup() {
  strip.begin(); // Initialize pins for output
  strip.show();  // Turn all LEDs off 
}