const int pinMerah = 8;
const int pinHijau = 9;
const int pinBiru = 10;

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

void loop() {
  // put your main code here, to run repeatedly:
  aturWarna(255, 0, 0); //warna merah
  delay(1000);
  aturWarna(0, 255, 0); //warna hijau
  delay(1000);
  aturWarna(0, 0, 255); //warna biru
  delay(1000);
  aturWarna(255, 255, 255); //warna putih
  delay(1000);
  aturWarna(170, 0, 255); //warna ungu
  delay(1000);
}
void aturWarna(int nilaiMerah, int nilaiHijau, int nilaiBiru) {
  analogWrite(pinMerah, nilaiMerah);
  analogWrite(pinHijau, nilaiHijau);
  analogWrite(pinBiru, nilaiBiru);
}