#include <DHT.h>;
#define DHTPIN 9
#define DHTTYPE DHT22 
DHT dht (DHTPIN,DHTTYPE);
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("%,temp:");
  Serial.print(temp);
  Serial.println("celsius");
  delay(10000);

}