#define BLYNK_TEMPLATE_ID "TMPL61o71WRk6"
#define BLYNK_TEMPLATE_NAME "monitoring temperature and humidity"
#define BLYNK_AUTH_TOKEN "3h3jSRJFEQ0_zEPyESC4W2qxLT1Ci1eV"

#define BLYNK_PRINT Serial

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DHT.h> //This line includes the DHT library

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

DHT dht (5, DHT22); //This declares a dht object connected to pin 17, that represents the DHT22 sensor.
float Temperature, Humidity; //This declares two float type variables to store the temperature and humidity.

void setup(){
  dht.begin(); //Initializes the DHT sensor.
  Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
  Serial.begin(9600); //Starts serial communication at a baud rate of 9600.
}

void loop (){
  Temperature = dht.readTemperature(); //Reads the temperature from the DHT22 sensor and stores it in the Temperature variable.
  Humidity = dht.readHumidity();
  
  Blynk.run();
  Blynk.virtualWrite (V0, Temperature);
  Blynk.virtualWrite (V1, Humidity) //Reads the humidity from the DHT22 sensor and stores it in the Humidity variable.

  //Print the text "T: " followed by the temperature value on the Serial Monitor.
  Serial.print("T: "); 
  Serial.println(Temperature);
  //Print the text "H: " followed by the humidity value on the Serial Monitor.
  Serial.print("H: ");
  Serial.println(Humidity);

  delay(1000); //The program waits for 1000 milliseconds (1 second) before reading the temperature and humidity again
}