#include <DHT.h>

#define DHTPIN 2         // Pin DHT
#define DHTTYPE DHT22    // Jenis DHT yang digunakan
#define Relay 3          // Pin relay
#define Buzzer 4         // Pin buzzer

DHT dht(DHTPIN, DHTTYPE);

float humi, temp, fahren;

void setup() {
  Serial.begin(9600);
  Serial.println(F("DHT-On test!"));
  dht.begin();
  
  pinMode(Relay, OUTPUT);
  pinMode(Buzzer, OUTPUT); // Setting Buzzer as Output
}

void loop() {
  delay(2000);

  humi = dht.readHumidity();
  temp = dht.readTemperature();
  fahren = dht.readTemperature(true);

  // Check for reading failures
  if (isnan(humi) || isnan(temp) || isnan(fahren)) {
    Serial.println(F("Failed to read from DHT Sensor!"));
    return;
  }

  Serial.print("Humidity: ");
  Serial.print(humi);
  Serial.print("% Temperature: ");
  Serial.print(temp);
  Serial.print("°C ");
  Serial.println(fahren);

  // Control Relay and Buzzer based on temperature
  if (temp > 30.0) {
    digitalWrite(Relay, HIGH); // Turn relay ON
    digitalWrite(Buzzer, HIGH); // Turn buzzer ON
  } else if (temp < 25.0) {
    digitalWrite(Relay, LOW);  // Turn relay OFF
    digitalWrite(Buzzer, LOW);  // Turn buzzer OFF
  }

  delay(1000);
}