#include "DHT.h"
#define DHTPIN 4
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
void setup() {
Serial.begin(115200);
dht.begin();
}
void loop() {
float temp = dht.readTemperature();
float hum = dht.readHumidity();
if (isnan(temp) || isnan(hum)) {
Serial.println("อ่านค่าไม่ได้");
return;
}
Serial.print("Temperature: ");
Serial.print(temp);
Serial.println(" °C");
Serial.print("Humidity: ");
Serial.print(hum);
Serial.println(" %");
delay(2000);
}