#include <DHT.h>;

//Constants
#define DHTPIN 5     // what pin we're connected to
#define DHTTYPE DHT22   // DHT 22  (AM2302)
DHT dht(DHTPIN, DHTTYPE); //// Initialize DHT sensor for normal 16mhz Arduino


#define RELAY 4

//Variables
int chk;
float hum;  //Stores humidity value
float temp; //Stores temperature value


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(RELAY, OUTPUT);
  dht.begin();
}

void loop() {
  // put your main code here, to run repeatedly:
delay(200);
    //Read data and store it to variables hum and temp
    hum = dht.readHumidity();
    temp= dht.readTemperature();
    //Print temp and humidity values to serial monitor
    Serial.print("Humidity: ");
    Serial.print(hum);
    Serial.print(" %, Temp: ");
    Serial.print(temp);
    Serial.println(" Celsius");
    delay(200); //Delay 2 sec.

    REGELTEMP();
}
void REGELTEMP(){
  if (temp < 6){
      digitalWrite(RELAY,HIGH);
    }else{
      digitalWrite(RELAY,LOW);
    }
}