#include <DHT.h>

#define DHTPIN 4
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

int chk;
float hum;
float temp;

void setup(){
  Serial.begin(9600);
  dht.begin();
}

void loop(){
  delay(2000);
  hum = dht.readHumidity();
  temp = dht.readTemperature();
  Serial.print("Humidity: ");
  Serial.print(hum);
  Serial.print(" % ");
  Serial.print(",");
  Serial.print(" temperature: ");
  Serial.print(temp);
  Serial.println(" Celsius");
  delay(2000);
}