#include <DHT.h>    // Include the DHT sensor library

#define DHTPIN 2    // Define the digital pin connected to the DHT sensor
#define DHTTYPE DHT22   // Define the type of DHT sensor being used (DHT22)

DHT dht(DHTPIN, DHTTYPE); // Create a DHT object with the specified pin and type

void setup() {
  Serial.begin(9600);    // Start serial communication at 9600 baud
  dht.begin();          // Initialize the DHT sensor
}

void loop() {
  delay(1000); // Wait for 1 second between measurements.

  float h = dht.readHumidity();  // Read humidity from the DHT sensor
  float t = dht.readTemperature();  // Read temperature in Celsius from the DHT sensor
  float f = dht.readTemperature(true);  // Read temperature in Fahrenheit from the DHT sensor

  Serial.print("Humidity: ");  // Print the string "Humidity: " to the serial monitor
  Serial.print(h, 1);  // Print the humidity value with 1 decimal place to the serial monitor
  Serial.print("%  Temperature: ");  // Print the string "%  Temperature: " to the serial monitor
  Serial.print(t, 1);  // Print the temperature value in Celsius with 1 decimal place to the serial monitor
  Serial.print("C & ");  // Print the string "C & " to the serial monitor
  Serial.print(f, 1);  // Print the temperature value in Fahrenheit with 1 decimal place to the serial monitor
  Serial.println("F");  // Print the string "F" followed by a newline to the serial monitor
}