#include <DHT.h>

#define DHTPIN 7
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
float temp;

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode(13, OUTPUT);

}

void loop() {
  temp = dht.readTemperature();
  Serial.print("Temp: ");
  Serial.print(temp);
  Serial.println(" Celcius");
  if (temp>20){
    digitalWrite(13, HIGH);
  } else{
    digitalWrite(13, LOW);
  }
  delay(1000); //one second delay
}