#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHTesp.h>

#define LCD_ADDRESS 0x27 // Alamat I2C LCD
#define LCD_COLS 16      // Jumlah kolom LCD
#define LCD_ROWS 2       // Jumlah baris LCD
#define DHTType DHTesp::DHT22
const int DHTPIN = 13;        // Pin yang terhubung ke sensor DHT22

DHTesp dht;
LiquidCrystal_I2C lcd(LCD_ADDRESS, LCD_COLS, LCD_ROWS);

void setup() {
  Serial.begin(115200);
  lcd.init();                      // Inisialisasi LCD
  lcd.backlight();                 // Nyalakan backlight LCD
  dht.setup(DHTPIN, DHTType);
  lcd.setCursor(0, 0);
  lcd.print("Kejuruan ioT");
  lcd.setCursor(0, 1);
  lcd.print("UPT BLK Surabaya");
}

void loop() {
  delay(dht.getMinimumSamplingPeriod());
  
  float humidity = dht.getHumidity();
  float temperature = dht.getTemperature();

  if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Gagal membaca data dari sensor DHT!");
    return;
  }

  Serial.print("Suhu: ");
  Serial.print(temperature);
  Serial.print("°C\tKelembaban: ");
  Serial.print(humidity);
  Serial.println("%");

  lcd.clear(); // Bersihkan tampilan LCD
  lcd.setCursor(0, 0);
  lcd.print("Suhu: ");
  lcd.print(temperature);
  lcd.print(" C");
  lcd.setCursor(0, 1);
  lcd.print("Kelembaban: ");
  lcd.print(humidity);
  lcd.print("%");

  delay(2000);
}