#include "BluetoothSerial.h"  // Include BluetoothSerial library for real ESP32 (not used in Wokwi)

const int ledPin = 2;  // LED connected to GPIO 2

void setup() {
  // Initialize the LED pin
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW);  // Start with LED off
  
  // Begin Serial communication for Wokwi simulation
  Serial.begin(115200);
  Serial.println("Wokwi Simulation: Send '1' to turn ON LED, '0' to turn OFF");
}

void loop() {
  // Check if there's data available from Serial Monitor
  if (Serial.available()) {
    char incomingChar = Serial.read();
    
    // Print received data to Serial Monitor
    Serial.print("Received: ");
    Serial.println(incomingChar);
    
    // Control the LED based on the input
    if (incomingChar == '1') {
      digitalWrite(ledPin, HIGH);  // Turn the LED on
      Serial.println("LED is ON");
    } else if (incomingChar == '0') {
      digitalWrite(ledPin, LOW);   // Turn the LED off
      Serial.println("LED is OFF");
    } else {
      Serial.println("Invalid Command. Send '1' to turn ON, '0' to turn OFF.");
    }
  }
}