Visualizer Warna & Audio

const int PIN_R = 9;
const int PIN_G = 10;
const int PIN_B = 11;

void setup() {
  pinMode(PIN_R, OUTPUT);
  pinMode(PIN_G, OUTPUT);
  pinMode(PIN_B, OUTPUT);
}

void loop() {
  // Warna Ungu (Merah + Biru)
  analogWrite(PIN_R, 150);
  analogWrite(PIN_G, 0);
  analogWrite(PIN_B, 255);
}

// LED RGB (Common Cathode)
const int PIN_R = 9;  // PWM
const int PIN_G = 10; // PWM  
const int PIN_B = 11; // PWM
const int BUZZER_PIN = 8;

void aturWarna(int r, int g, int b) {
  analogWrite(PIN_R, r);
  analogWrite(PIN_G, g);
  analogWrite(PIN_B, b);
}

void setup() {
  pinMode(PIN_R, OUTPUT);
  pinMode(PIN_G, OUTPUT);
  pinMode(PIN_B, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);
  Serial.begin(9600);
}

void rainbowCycle() {
  // Merah -> Kuning -> Hijau -> Cyan -> Biru -> Magenta -> Merah
  for (int i = 0; i <= 255; i++) { aturWarna(255, i, 0); delay(5); }     // R->Y
  for (int i = 255; i >= 0; i--) { aturWarna(i, 255, 0); delay(5); }     // Y->G
  for (int i = 0; i <= 255; i++) { aturWarna(0, 255, i); delay(5); }     // G->C
  for (int i = 255; i >= 0; i--) { aturWarna(0, i, 255); delay(5); }     // C->B
  for (int i = 0; i <= 255; i++) { aturWarna(i, 0, 255); delay(5); }     // B->M
  for (int i = 255; i >= 0; i--) { aturWarna(255, 0, i); delay(5); }     // M->R
}

void loop() {
  rainbowCycle();
}