#include "DHT.h"
#define DHTPIN 2
#define DHTTYPE DHT22
DHT dht(DHTPIN,DHTTYPE);
void setup() {
  Serial.begin(9600);
  dht.begin();
}
void loop() {
  delay(2000);

  float humidity=dht.readHumidity();
  float temperature=dht.readTemperature();
  if(isnan(humidity) || isnan(temperature)) {
    Serial.println("Failed to read from DH22 sensor!");
    return;
  }
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.print("%\t");
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println("*C");
}