// RTC
#include <Wire.h>
#include <RTClib.h>
RTC_DS1307 rtc;

// LCD
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

const int buzzerPin = 13;

void setup(){
  Serial.begin(115200);
  Serial.println("barr, ESP32 kang");

  // koding lcd
  lcd.init();
  lcd.backlight();
  lcd.clear();

  // koding rtc
  Wire.begin();
  if(!rtc.begin()){
    Serial.println("RTC tidak terhubung");
    lcd.setCursor(0,0);
    lcd.print("RTC Tidak Terhubung");
    while(1);
  }
  lcd.clear();

   pinMode(buzzerPin, OUTPUT);
}
void loop() {
 DateTime now=rtc.now();
 int tahun = now.year();
 int bulan = now.month();
 int tanggal = now.day();
 int jam = now.hour();
 int menit = now.minute();
 int detik = now.second();


// koding lcd
lcd.setCursor(0,0);
lcd.print(String() +"Tanggal :" + tanggal + "/" + bulan + "/"+ tahun);
lcd.setCursor(2,1);
lcd.print(String()+ "Waktu:" + jam + ":" + menit + ":" + detik);

Serial.println(String() +"tanggal :" + tanggal + "/" + bulan + "/" + tahun);
Serial.println(String() +"waktu    :" + jam + ":" + menit + ":" + detik);
Serial.println(String() );
delay(400);

if (now.minute() == 2) {
  tone(buzzerPin, HIGH);
}
else {
  noTone(buzzerPin);
}
}