Arduino101 LEDFader

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Shows the most basic use of the PWM pins – make lights brighter and dimmer. Also introduces the for loop.

Breadboard layout

LED Fader bb.png


int ledPin = 11;
int inc = 1;

void setup() {
  // put your setup code here, to run once:
  pinMode(ledPin, OUTPUT);

void loop() {
  // put your main code here, to run repeatedly: 
  for (int i=0; i>-1; i=i+inc){
    analogWrite(ledPin, i);
    if (i==255){
    	inc = -inc;
    if (i==0){
    	inc = -inc;