const int redPin = 9; // Pin kontrol merah
const int greenPin = 10; // Pin kontrol hijau
const int bluePin = 11; // Pin kontrol biru

void setup() {
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
}

void loop() {
  // Efek perubahan warna berangsur-angsur
  rainbowEffect();
}

void rainbowEffect() {
  for (int i = 0; i < 255; i++) {
    setColor(i, 255 - i, 0);
    delay(10);
  }

  for (int i = 0; i < 255; i++) {
    setColor(255 - i, 0, i);
    delay(10);
  }

  for (int i = 0; i < 255; i++) {
    setColor(0, i, 255 - i);
    delay(10);
  }
}

void setColor(int red, int green, int blue) {
  analogWrite(redPin, red);
  analogWrite(greenPin, green);
  analogWrite(bluePin, blue);
}