#include <LiquidCrystal_I2C.h>
#include <Wire.h>
#include "pitches.h"

LiquidCrystal_I2C lcd(0x27, 16, 2); // Sesuaikan alamat I2C LCD jika diperlukan

int buttonPin = 2; // Pin untuk push button
int buzzerPin = 8; // Pin untuk buzzer

void setup() {
  lcd.begin(16, 2);
  lcd.print("Selamat Ulang Tahun");

  pinMode(buttonPin, INPUT);
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  if (digitalRead(buttonPin) == HIGH) {
    lcd.clear();
    lcd.print("Happy Birthday!");
    
    // Mainkan lagu ulang tahun
    int melody[] = {
  NOTE_C4, NOTE_C4, NOTE_D4, NOTE_C4, NOTE_F4, NOTE_E4,
  NOTE_C4, NOTE_C4, NOTE_D4, NOTE_C4, NOTE_G4, NOTE_F4,
  NOTE_C4, NOTE_C4, NOTE_C5, NOTE_A4, NOTE_F4, NOTE_F4,
  NOTE_E4, NOTE_E4, NOTE_D4, NOTE_F4, NOTE_E4, NOTE_C4,
  NOTE_D4, NOTE_D4, NOTE_D4, NOTE_C4, NOTE_G4, NOTE_F4
};

int noteDurations[] = {
  8, 4, 4, 4, 4, 4,
  8, 4, 4, 4, 4, 4,
  4, 4, 4, 4, 4, 4,
  4, 4, 4, 4, 4, 4,
  4, 4, 4, 4, 4, 4
};
  
    for (int i = 0; i < 29; i++) {
      int noteDuration = 1300 / noteDurations[i];
      tone(buzzerPin, melody[i], noteDuration);
      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      noTone(buzzerPin);
    }
  }
}