#include <DHT.h>

#define DHTPIN 9
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);

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

  Serial.println("DHT22 Sensor Starting...");
}

void loop() {

  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Failed to read DHT22!");
    delay(2000);
    return;
  }

  Serial.print("Temperature: ");
  Serial.print(temperature, 2);
  Serial.print(" C");

  Serial.print(" | Humidity: ");
  Serial.print(humidity, 2);
  Serial.println(" %RH");

  delay(2000);
}