#include <DHT.h>

#define DHTPIN           // GP2 for data
#define DHTTYPE DHT11     // DHT11 sensor

#define LEDPIN 3          // GP3 for LED

DHT dht(DHTPIN, DHTTYPE);

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

void loop() {
  delay(2000);  // DHT11 requires delay between reads

  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

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

  Serial.print("Temp: ");
  Serial.print(temperature);
  Serial.print("°C  |  Humidity: ");
  Serial.print(humidity);
  Serial.println("%");

  // LED Logic
  if (temperature > 30) {
    digitalWrite(LEDPIN, HIGH);
  } else {
    digitalWrite(LEDPIN, LOW);
  }
}