#include <DHT.h>

#define DHTPIN 14 
#define RELAYPIN 11 
#define DHTTYPE DHT11 

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  pinMode(RELAYPIN, OUTPUT);
  digitalWrite(RELAYPIN, LOW); // Turn off the relay initially
  dht.begin();
  Serial.begin(9600);
}

void loop() {
  delay(2000); // Delay for 2 seconds (DHT11 has a 2-second update interval)

  float temperature = dht.readTemperature(); // Read temperature from the DHT sensor

  if (isnan(temperature)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  Serial.print("Temperature: ");
  Serial.println(temperature);

  if (temperature >= 30.0) {
    // Temperature is 28 degrees or higher, turn on the relay
    digitalWrite(RELAYPIN, HIGH);
    Serial.println("Relay turned ON");
  } else {
    // Temperature is below 28 degrees, turn off the relay
    digitalWrite(RELAYPIN, LOW);
    Serial.println("Relay turned OFF");
  }
}