#define BLYNK_TEMPLATE_ID "TMPL3LVvAn_t"
#define BLYNK_DEVICE_NAME "LED BLYNK"
#define BLYNK_AUTH_TOKEN "vHvDxd_b4etyPqd1xS20Z310XwsNZiex"

#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

char auth[] = BLYNK_AUTH_TOKEN;

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// This function will be called every time Slider Widget
// in Blynk app writes values to the Virtual Pin V1
BLYNK_WRITE(V0)
{
  int pinValue = param.asInt(); // assigning incoming value from pin V1 to a variable
  if (pinValue==1){
    digitalWrite(4, HIGH);}
  else{
    digitalWrite(4, LOW);
  }
  // process received value
}

void setup()
{
  pinMode(4, OUTPUT);
  // Debug console
  Serial.begin(115200);

  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080);
}

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