const int dht=2;
const int ledPin=3;

void setup() {
  pinMode(dht, INPUT);
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
  float temperature = dht.readTemperature();
}

void loop() {

  
  if (temperature>40) {
    digitalWrite(ledPin, HIGH); // Turn on the LED
    Serial.println("Smoke detected!");
  } else {
    digitalWrite(ledPin, LOW); // Turn off the LED
  }
  
  delay(1000); // Delay for stability
}