RGB LED 34

Blend three PWM channels for status colors and visual feedback.

/*
  Roboda verified Arduino sample 0841
  Feature: RGB LED
  Generated for online build, classroom practice, and hardware upload testing.
*/

const byte redPin = 9;
const byte greenPin = 10;
const byte bluePin = 11;
byte hueStep = 0;

void setup() {
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
}

void loop() {
  analogWrite(redPin, hueStep);
  analogWrite(greenPin, 255 - hueStep);
  analogWrite(bluePin, (hueStep / 2) + 33);
  hueStep += 5;
  delay(131);
}

How it works

Practice this Arduino feature with a verified Roboda sketch.

1. Read the constants at the top of the sketch.
2. Wire the pins exactly as listed in the pin map.
3. Upload or compile once before changing values.
4. Change one value at a time and watch Serial Monitor or the output device.

Connections