#define BLYNK_TEMPLATE_ID "TMPL3khIoKQxI"
#define BLYNK_TEMPLATE_NAME "Controlling LEDs with ESP32"
#define BLYNK_AUTH_TOKEN "mQka-X-VRN6vuCWaTj5CvVKQugjmt8Lj"

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

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";   // or your WiFi SSID
char pass[] = "";              // or your WiFi password

int ledPin = 2;  // GPIO2 for LED

BLYNK_WRITE(V0) {  
  int ledState = param.asInt();  // Read value from app (0 or 1)
  digitalWrite(ledPin, ledState);
}

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(115200);

  Blynk.begin(auth, ssid, pass); // connect to Blynk Cloud
}

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