#include <DHT.h>

#define DHTPIN 2    // DHT22 data pin (you can change if needed)
#define DHTTYPE DHT22

#define RELAY_PIN 25    // Relay connected to GPIO 25

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  
  pinMode(RELAY_PIN, OUTPUT);
  digitalWrite(RELAY_PIN, LOW); // Relay OFF initially
  
  dht.begin();
}

void loop() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

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

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

  // 🔥 Condition to control motor (LED)
  if (temperature > 30) {
    digitalWrite(RELAY_PIN, HIGH); // Relay ON → Motor ON
    Serial.println("Motor ON");
  } else {
    digitalWrite(RELAY_PIN, LOW);  // Relay OFF → Motor OFF
    Serial.println("Motor OFF");
  }

  delay(2000); // Wait 2 seconds
}