Article / Updated 11-07-2017
Let’s do some fun stuff with your Raspberry Pi’s LEDs: mixing colors. Yes, you can turn on just one LED at a time, and that will give you one of the three colors — red, blue, or green. However, turn two on and the colors will mix in a way known as additive mixing.The primary colors are red, green, and blue. Mixing them together gives you other colors, the so-called secondary colors.