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

#define DHTPIN 4     // Pin data sensor DHT22 terhubung ke GPIO 4
#define DHTTYPE DHT22   // Tipe sensor DHT 22

DHT dht(DHTPIN, DHTTYPE);
RTC_DS3231 rtc;

// // Alamat I2C LCD
// const int I2C_ADDR = 0x27;
// // Konfigurasi jumlah kolom dan baris LCD
// const int LCD_COLS = 20;
// const int LCD_ROWS = 4;

// Inisialisasi LCD
LiquidCrystal_I2C lcd(0x27, 20, 4);


void setup() {
  Serial.begin(9600);
  // Inisialisasi sensor DHT dan RTC
  dht.begin();
  rtc.begin();
  rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));

  // Inisialisasi LCD
  

  lcd.init();
  lcd.backlight();
  // lcd.setCursor(0, 0);
  // lcd.print("Raddyaarizaldy");
  // lcd.setCursor(0, 1);
  // lcd.print("IOT");
  // lcd.setCursor(0,2);
  // lcd.print("BLK SURABAYA");
  // lcd.setCursor(0,3);
  // lcd.print("2024");
}

void loop() {
  // Membaca suhu dari sensor DHT
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Gagal membaca sensor DHT!");
  } else {
    // Tampilkan suhu dan kelembaban di Serial Monitor
    Serial.print("Suhu: ");
    Serial.print(temperature);
    Serial.print("°C, Kelembaban: ");
    Serial.print(humidity);
    Serial.println("%");

    // Tampilkan suhu dan kelembaban di LCD
    lcd.setCursor(0, 2);
    lcd.print(temperature);
    lcd.print(char(223)); lcd.print("C");
    lcd.setCursor(0, 3);
    lcd.print(humidity);
    lcd.print("%");
  }

  // Baca waktu dari RTC dan tampilkan di Serial Monitor
  DateTime now = rtc.now();
  Serial.print(now.year(), DEC);    Serial.print("/");
  Serial.print(now.month(), DEC);   Serial.print("/");
  Serial.print(now.day(), DEC);     Serial.println(".");
  Serial.print(now.hour(), DEC);    Serial.print(':');
  Serial.print(now.minute(), DEC);  Serial.print(':');
  Serial.print(now.second(), DEC);  Serial.println(".");

  // Tampilkan waktu di LCD
  lcd.setCursor(0, 0);
  lcd.print(now.year(), DEC);
  lcd.print("/");
  lcd.print(now.month(), DEC);
  lcd.print("/");
  lcd.print(now.day(), DEC);
  lcd.setCursor(0, 1);
  lcd.print(now.hour(), DEC);
  lcd.print(":");
  lcd.print(now.minute(), DEC);
  lcd.print(":");
  lcd.print(now.second(), DEC);
  


  delay(1000); // Delay 1 detik sebelum membaca sensor lagi
}