#include <DHT.h>

#define DHTPIN 16         
#define DHTTYPE DHT22     
#define RELAY_PIN 18      

DHT dht(DHTPIN, DHTTYPE);
bool ledState = false;

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

void loop() {
  delay(2000);  

  float temperature = dht.readTemperature(); 

  if (isnan(temperature)) {
    Serial.println("Gagal membaca sensor!");
    return;
  }

  Serial.print("Suhu: ");
  Serial.print(temperature);
  Serial.println(" °C");

  // Mematikan atau menghidupkan LED relay berdasarkan suhu
  if (temperature > 30) {
    digitalWrite(RELAY_PIN, HIGH); // Hidupkan relay
    ledState = true;
    Serial.println("Kipas Dihidupkan");
  } else {
    digitalWrite(RELAY_PIN, LOW); // Matikan relay
    ledState = false;
    Serial.println("Kipas Dimatikan");
  }
}