// Include the DHTesp library
// This library is optimized for ESP32 and ESP8266 boards
#include "DHTesp.h"

// Create an object named dhtSensor to control the DHT sensor
DHTesp dhtSensor;

// Create a variable 'data' to store temperature and humidity values
// TempAndHumidity is a structure provided by the DHTesp library
TempAndHumidity data;

// Define the GPIO pin number where the DHT22 data pin is connected
const int DHT_PIN = 15;

void setup() {

  // Start serial communication at 115200 baud rate
  // Used to display temperature and humidity values on Serial Monitor
  Serial.begin(115200);

  // Initialize the DHT sensor
  // DHT_PIN → GPIO pin number
  // DHTesp::DHT22 → specifies the sensor type as DHT22
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}

void loop() {

  // Read both temperature and humidity from the DHT sensor
  // The values are stored in the 'data' structure
  data = dhtSensor.getTempAndHumidity();

  // Print humidity value with 1 decimal place
  Serial.println("Humidity: " + String(data.humidity, 1));

  // Print temperature value with 2 decimal places
  Serial.println("Temperature: " + String(data.temperature, 2));

  // Print a separator line for better readability
  Serial.println("***-----***");

  // Delay of 1 second before next reading
  // DHT22 requires a minimum delay between readings
  delay(1000);
}