#include "DHT.h"
#define DHTPIN 2        
#define DHTTYPE DHT22   
#define LEDPIN 13       

DHT dht(DHTPIN, DHTTYPE);

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

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

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

  if (temperature > 30) {
    digitalWrite(LEDPIN, HIGH); // High temperature warning
  }
  else if (humidity < 40) {
    // Dry air warning: blink slowly
    digitalWrite(LEDPIN, HIGH);
    delay(500);
    digitalWrite(LEDPIN, LOW);
    delay(500);
  }
  else {
    digitalWrite(LEDPIN, LOW);
  }

  delay(2000); // Sensor read interval
}