#include <Wire.h> // Library untuk komunikasi I2C
#include <LiquidCrystal_I2C.h> // Library untuk LCD I2C
#include <RTClib.h> // Library untuk Real-time Clock
RTC_DS3231 rtc;

LiquidCrystal_I2C lcd(0x27,16,2); //Mengakses alamat LCD 
const int BalkonRelay = 10; // Pin untuk relay lampu balkon dan teras
const int TerasRelay = 6;
const int RuangTengahRelay = 9; // Pin untuk relay lampu ruang tengah dan kamar
const int KamarRelay = 7;

void setup() {
  
  lcd.init();  // Reset LCD 
  lcd.backlight();  // Menyalakan background LCD
  rtc.begin();    // Mulai Real time clock

  pinMode(BalkonRelay, OUTPUT);
  pinMode(TerasRelay, OUTPUT);
  pinMode(RuangTengahRelay, OUTPUT);
  pinMode(KamarRelay, OUTPUT);
  rtc.adjust(DateTime(2023, 11, 8, 6, 0, 0));
  
  
}

void loop() {
  DateTime now = rtc.now();

  lcd.setCursor(0, 0);
  lcd.print("Tgl : ");  lcd.print(now.day()); lcd.print("/"); lcd.print(now.month()); lcd.print("/"); lcd.print(now.year());
  lcd.setCursor(0,1); 
  lcd.print("Jam : "); lcd.print(now.hour()); lcd.print(":"); lcd.print(now.minute()); lcd.print(":"); lcd.print(now.second());
;

  if (now.hour() >= 18 && now.minute() >= 0 && now.second() >=0 ||now.hour()<6) {
    // Saat pukul 18.00
    digitalWrite(BalkonRelay, HIGH); //Nyalakan lampu Teras dan Balkon
    digitalWrite(TerasRelay, HIGH);
  } else if (now.hour() >= 6 && now.minute() >= 0) {
    // Saat pukul 06.00
    digitalWrite(BalkonRelay, LOW); // Matikan lampu Teras dan Balkon
    digitalWrite(TerasRelay, LOW);
  }

  if (now.hour() >= 17 && now.minute() >= 0 && now.second() >= 0 || now.hour()<6) {
    // Saat pukul 17.00
    digitalWrite(RuangTengahRelay, HIGH); //Nyalakan lampu Ruang Tengah dan Kamar
    digitalWrite(KamarRelay, HIGH);
  } else if (now.hour() >= 6 && now.minute() >= 0) {
    // Saat pukul 06.00
    digitalWrite(RuangTengahRelay, LOW); //Matikan lampu Ruang Tengah dan Kamar 
    digitalWrite(KamarRelay, LOW);
    }

  
}