#include <DHT.h>

// Define DHT sensor type and pin
#define DHTTYPE DHT22   // DHT 22 (AM2302)
#define DHTPIN 2        // Pin connected to the data pin of DHT22

DHT dht(DHTPIN, DHTTYPE);

// Define LED pin
#define R 8

void setup() {
  // Initialize serial communication
  Serial.begin(9600);
  
  // Initialize DHT sensor
  dht.begin();
  
  // Set LED pin as output
  pinMode(R, OUTPUT);
}

void loop() {
  // Read temperature as Celsius
  float temperature = dht.readTemperature();
  
  // Check if reading was successful
  if (isnan(temperature)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // Print the temperature to the Serial Monitor
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" °C");

  // Check if temperature is above 33°C
  if (temperature > 33) {
    // Blink LED continuously
    digitalWrite(R, HIGH);
    delay(50); // LED ON for 500ms
    digitalWrite(R, LOW);
    delay(50); // LED OFF for 500ms
  } else {
    // Keep LED OFF
    digitalWrite(R, LOW);
  }

  // Small delay before next reading
  delay(1000); // Read every 2 seconds
}