3 · Outputs & actuators
RGB LED: mixing colours
Intermediate20 min
Goal
Create any colour with three PWM channels.
Why it matters
Additive red/green/blue synthesis is the principle behind every screen.
Steps
- 01Wire R, G, B to three PWM pins (9, 10, 11).
- 02Write a setColor(r, g, b) function.
- 03Cycle red, green, blue, yellow, cyan, magenta, white.
This tutorial runs inside the Circuitly simulator: your wiring and your code are checked automatically at every step.