#include <DHT.h>
#define DHTPIN 2
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
void setup() {
Serial.begin(115200);
Serial.println("DHT22 Sensor Test");
dht.begin();
delay(3000);
}
void loop() {
float temperature = dht.readTemperature();
float humidity = dht.readHumidity();
if (isnan(temperature) || isnan(humidity)) {
Serial.println("failed to read from DHT sensor!");
} else {
Serial.print("Temp: ");
Serial.print(temperature);
Serial.print(" C, ");
Serial.print("Humidity: ");
Serial.print(humidity);
Serial.println(" %");
}
delay(2000);
}