This was a quick test for a multi color LED. Pins 2, 3 and 4 were used
int red = 2; int green =3; int blue =4; int j; void setup() { pinMode(red,OUTPUT); pinMode(green,OUTPUT); pinMode(blue,OUTPUT); } void loop() { for (j = 1; j < 10000; j++) { analogWrite(red,random(255)); delay (random(10,31)); analogWrite(green,random(255)); delay (random(10,31)); analogWrite(blue,random(255)); delay (random(10,31)); } }