#define BLYNK_TEMPLATE_ID "TMPL68er9fIx4"
#define BLYNK_TEMPLATE_NAME "ESP DHT22"
#define BLYNK_AUTH_TOKEN "QlfoYMvo-QFGYKCdag8LKLkp6Lo0BxnC"

#define BLYNK_PRINT Serial

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DHT.h>

char auth[] = BLYNK_AUTH_TOKEN;

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

#define DHTPIN 5         // Digital Pin 
#define DHTTYPE DHT22     // DHT 11  
DHT dht(DHTPIN, DHTTYPE);
BlynkTimer timer;

const int ledPin = 2; // Define the LED pin

void setup(){
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass);
  pinMode(ledPin, OUTPUT); // Initialize the LED pin
  dht.begin();
  timer.setInterval(3000L, sendSensor);
}

void loop(){
  Blynk.run();
  timer.run();
}

void sendSensor(){
  float t = dht.readTemperature(); // Read temperature in Celsius
  float h = dht.readHumidity();    // Read humidity

  if (isnan(t) || isnan(h)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  Blynk.virtualWrite(V1, h); // Sending humidity to V1 in Blynk app
  Blynk.virtualWrite(V2, t); // Sending temperature to V2 in Blynk app
  
  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print("% - Temperature: ");
  Serial.print(t);
  Serial.println("°C");

  if(t > 30){
    digitalWrite(ledPin, HIGH);
  } //else {
    //digitalWrite(ledPin, LOW);
  //}
}

BLYNK_WRITE(V0) {
  int pinValue = param.asInt();
  if (pinValue == 1) {
    // Turn on the LED
    digitalWrite(ledPin, HIGH);
  } else {
    // Turn off the LED
    digitalWrite(ledPin, LOW);
  }
}