int REDpin = 5; //my red light is pin 5 int GREENpin = 6; // my green light is pin 6 int BLUEpin = 4; //my blue light is pin 4 #define COMMON_ANODE void setColor(int red, int green, int blue) { #ifdef COMMON_ANODE red = 255 - red; green = 255 - green; blue = 255 - blue; #endif analogWrite(REDpin, red); analogWrite(GREENpin, green); analogWrite(BLUEpin, blue); } void setup() { pinMode (REDpin, OUTPUT); //my red pin is an output pinMode (GREENpin, OUTPUT); //my green pin is an output pinMode (BLUEpin, OUTPUT); //my blue pin is an output } void loop() { setColor(255, 0, 0); // red delay(1000); setColor(0, 255, 0); // green delay(1000); setColor(0, 0, 255); // blue delay(1000); setColor(255, 255, 0); // yellow delay(1000); setColor(80, 0, 80); // purple delay(1000); setColor(0, 255, 255); // aqua delay(1000); }