#define BUZZER_PIN 12

// Notes and their corresponding frequencies in Hz
#define NOTE_C4  262
#define NOTE_D4  294
#define NOTE_E4  330
#define NOTE_F4  349
#define NOTE_G4  392
#define NOTE_A4  440
#define NOTE_B4  494
#define NOTE_C5  523

// Melody of the Interstellar theme (simplified)
int melody[] = {
  NOTE_C4, NOTE_E4, NOTE_F4, NOTE_C5, 
  NOTE_E4, NOTE_F4, NOTE_C5, NOTE_E4, 
  NOTE_C4, NOTE_E4, NOTE_F4, NOTE_G4, 
  NOTE_C5, NOTE_E4, NOTE_F4, NOTE_C4
};

// Note durations: 4 = quarter note, 8 = eighth note, etc.
int noteDurations[] = {
  4, 4, 4, 4,
  4, 4, 4, 4,
  4, 4, 4, 4,
  4, 4, 4, 4
};

void setup() {
  // no setup required for this code
}

void loop() {
  for (int thisNote = 0; thisNote < sizeof(melody)/sizeof(melody[0]); thisNote++) {
    int noteDuration = 1000 / noteDurations[thisNote];
    tone(BUZZER_PIN, melody[thisNote], noteDuration);
    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    noTone(BUZZER_PIN);
  }

  // Add a pause before repeating the melody
  delay(1000);
}