int pinMerah = 6;
int pinHijau = 5;
int pinBiru = 4;
void setup() {
  // put your setup code here, to run once:
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
setcolor(255,0,0);
delay(250);
setcolor(0,255,0);
delay(250);
setcolor(0,0,255);
delay(250);
}
void setcolor(int R,int G,int B){
analogWrite(pinMerah, R);
analogWrite(pinHijau, G);
analogWrite(pinBiru, B);
}