#include "DHT.h"
#define DHTPIN 2
DHT dht(2, DHT22);

void setup() {
  Serial.begin(9600);
  Serial.println("DHT22 Humidity and Temperature Sensor");
  dht.begin();
}

void loop() {
  delay(2000);
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();
  float temperatureF = dht.readTemperature(true);
  if (isnan(humidity) || isnan(temperature) || isnan(temperatureF)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print(" *C ");
  Serial.print(temperatureF);
  Serial.println(" *F");
}