#include "DHT.h"

//--- define name
#define DHTPIN 2  
#define DHTTYPE DHT22

//--- dht object
DHT dht(DHTPIN, DHTTYPE);

//--- initial setup
void setup() {
  pinMode(DHTPIN, INPUT);
  Serial.begin(9600);
  dht.begin();
}

//--- main loop
void loop() {
  float t = dht.readTemperature();
  float h = dht.readHumidity();
  Serial.print("Temperature = ");
  Serial.print(t);
  Serial.print(" C");
  Serial.print("     Humidity = ");
  Serial.print(h);
  Serial.println(" %");
  delay(1000);
}