// MADE BY CAKRAYP
// Buzzer dengan membawakan lagu nada "Do-Re-Mi-Fa-So-La-Ti-Do"
// 
// Dikutip dari sumber dokumentasi dan project.
// Dokumentasi  : (https://docs.wokwi.com/parts/wokwi-buzzer)
// Mini Piano   : (https://wokwi.com/projects/291958456169005577)
// Simon        : (https://wokwi.com/projects/344891334169985618)

#include "pitches.h"

#define BuzzerPin 9
#define Btn_Pin A0
#define LedPin 13

// Nada untuk Buzzer
const int Tones[] = {     // => Do-Re-Mi-Fa-So-La-Ti-Do
  NOTE_C4, NOTE_D4, NOTE_E4, NOTE_F4,
  NOTE_G4, NOTE_A4, NOTE_B4, NOTE_C5
};
const int numCountTones = sizeof(Tones) / sizeof(Tones[0]);   // Jumlah Data dalam array

// Delay
int DelayAfterPlay = 0;

// Main
void setup() {
  Serial.begin(9600);
  Serial.println("<Arduino UNO is ready>");
  Serial.println("Press the blue button to play...");

  // Setup PIN
  pinMode(Btn_Pin, INPUT);    // Button
  pinMode(BuzzerPin, OUTPUT); // Buzzer
  pinMode(LedPin, OUTPUT);    // LED
}

// Loop to repeated the programs.
void loop() {
  int playBuzzer = digitalRead(Btn_Pin);  // Membaca tombol dari PIN A0

  // HIGH = 1
  // LOW  = 0

  // Let's Play
  if (playBuzzer == HIGH && DelayAfterPlay != 1) {
    DelayAfterPlay = 1;
    digitalWrite(LedPin, HIGH);   // LED ON

    // Mulai 0 (index awal) sampai 8 (index akhir)
    for (int i = 0; i <= numCountTones; i++) {
      if (i+1 > numCountTones) continue;    // Menghindari Bug
      Serial.print("[SPEAKER]: ");
      Serial.println("Voice number " + String(Tones[i]));
      tone(BuzzerPin, Tones[i]);
      delay(500);
    }

    delay(2000);        // Lanjutkan setelah 2 detik.
    noTone(BuzzerPin);  // Delay sebentar...
    delay(750);

    // Mulai dari 8 (index akhir) sampai 0 (index awal)
    for (int i = numCountTones; i >= 0; i--) {
      if (i+1 > numCountTones) continue;    // Menghindari Bug
      Serial.print("[SPEAKER]: ");
      Serial.println("Voice number " + String(Tones[i]));
      tone(BuzzerPin, Tones[i]);
      delay(500);
    }

    delay(3000);  // Berhenti setelah 3 detik
    noTone(BuzzerPin);

    Serial.print("[SPEAKER]: ");
    Serial.println("Stopped!");

    digitalWrite(LedPin, LOW);  // LED OFF

    delay(1200);    // Delay sebentar sebelum memulai.
    DelayAfterPlay = 0;
  }
}