#include <DHT.h>

#define DHTPIN 2
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);
int lampuMerah = 13;

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode(lampuMerah, OUTPUT);
}

void loop() {
  delay(2000);
  
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  
  if (isnan(temperature) || isnan(humidity)) {
    lcd.println("Gagal membaca data dari sensor DHT!");
    return;
  }
  
  Serial.print("Suhu: ");
  Serial.print(temperature);
  Serial.print(" °C, Kelembapan: ");
  Serial.print(humidity);
  Serial.println(" %");
  
  if (temperature > 30) {
    digitalWrite(lampuMerah, HIGH);
  } else {
    digitalWrite(lampuMerah, LOW);
  }
}