#include "DHT.h"
// Define the DHT sensor type and pin
#define DHTTYPE DHT22
#define DHTPIN 2
// Initialize the DHT sensor
DHT dht(DHTPIN, DHTTYPE);
void setup() {
// Start serial communication
Serial.begin(9600);
Serial.println("DHT22 Sensor Test");
// Initialize the sensor
dht.begin();
}
void loop() {
// Read temperature and humidity
float humidity = dht.readHumidity();
float temperature = dht.readTemperature();
// Check if the readings are valid
if (isnan(humidity) || isnan(temperature)) {
Serial.println("Failed to read from DHT sensor!");
return;
}
// Print the readings to the Serial Monitor
Serial.print("Humidity: ");
Serial.print(humidity);
Serial.print(" %\t");
Serial.print("Temperature: ");
Serial.print(temperature);
Serial.println(" °C");
// Wait 2 seconds between readings
delay(2000);
}