#include <DHT.h>

#define DHTPIN 4           
#define DHTTYPE DHT22     

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);   
  dht.begin();            
}

void loop() {
  delay(2000);            

  float h = dht.readHumidity();   
  float t = dht.readTemperature(); 

  if (isnan(h) || isnan(t)) {      
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.println(" C");
}