#define BLYNK_TEMPLATE_ID "TMPL3J75tDH5M"
#define BLYNK_TEMPLATE_NAME "led"
#define BLYNK_AUTH_TOKEN "a1UBc-umP8ALxuvZKjO0ouONJLhgkaZG"

#define BLYNK_PRINT Serial

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

// Your WiFi credentials
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

const int ledPin = 2; // GPIO2 (D2) for external LED

// This function is called every time the button widget on Virtual Pin V0 changes state
BLYNK_WRITE(V0)
{
  int pinValue = param.asInt(); // Get the value from the button (0 or 1)

  if (pinValue) {
    digitalWrite(ledPin, HIGH); // Turn on the LED
    Serial.println("LED is ON");
  } else {
    digitalWrite(ledPin, LOW); // Turn off the LED
    Serial.println("LED is OFF");
  }
}

void setup()
{
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT); // Configure GPIO2 as an output
  digitalWrite(ledPin, LOW); // Ensure the LED starts off

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass); // Connect to Blynk platform
}

void loop()
{
  Blynk.run(); // Run the Blynk library
}