#include <RTClib.h>
#include <LiquidCrystal_I2C.h>

byte
tick = 0,
detik = 0,
menit = 0,
jam = 0,
flag = 0,
siram = 0;

int relayPin = 2;

RTC_DS1307 rtc;
LiquidCrystal_I2C lcd(0x27, 16, 2); // Alamat I2C LCD dan ukuran 16x2

void setup() {
  // Inisialisasi komunikasi dengan modul RTC
  rtc.begin();
  lcd.begin(16, 2); // Inisialisasi LCD
  lcd.init();
  lcd.backlight();

  // Atur waktu RTC jika belum diset
  if (!rtc.begin()) {
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }

  // Set pin relay sebagai OUTPUT
  pinMode(relayPin, OUTPUT);
}

void loop() {
  // Baca waktu saat ini dari RTC
  DateTime now = rtc.now();

  // Cek kondisi waktu dan atur pengendalian LED
  if (now.hour() == 7 && now.minute() == 26 && now.second() == 0)
  {
    // Nyalakan LISTRIK
    flag = 1;
    lcd.clear();
    siram++;
  }

  if (now.hour() == 7 && now.minute() == 27 && now.second() == 0)
  {
    flag = 0;
    digitalWrite(relayPin, LOW);
    lcd.clear();
  }

  if (now.hour() == 7 && now.minute() == 28 && now.second() == 0)
  {
    // Nyalakan LISTRIK
    flag = 1;
    lcd.clear();
    siram++;
  }

  if (now.hour() == 7 && now.minute() == 29 && now.second() == 0)
  {
    flag = 0;
    digitalWrite(relayPin, LOW);
    lcd.clear();
  }

  if (flag == 1)
  {
    digitalWrite(relayPin, HIGH);
    lcd.setCursor(15, 0);
    lcd.print(siram);
  }

  lcd.setCursor(0, 0);
  lcd.print("Jam: ");
  lcd.print(now.hour(), DEC);
  lcd.print(":");
  lcd.print(now.minute(), DEC);
  lcd.print(":");
  lcd.print(now.second(), DEC);

  lcd.setCursor(0, 1);
  lcd.print("Tanggal: ");
  lcd.print(now.day(), DEC);
  lcd.print("/");
  lcd.print(now.month(), DEC);
  lcd.print("/");
  lcd.print(now.year() % 100);

  delay (1000);
}