#include <Arduino.h>

// Define LED pin
const int ledPin = 2; // Use pin 2 for the LED on the ESP32

void setup() {
  // Initialize serial communication
  Serial.begin(9600);
  
  // Set LED pin as output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Check if data is available to read from serial
  if (Serial.available() > 0) {

    String command = Serial.readStringUntil('\n');

    // Process the command
    if (command == "On" || command == "on") {
      digitalWrite(ledPin, HIGH); // Turn on LED
      Serial.println("LED turned on");
    } else if (command == "Off" || command == "off") {
      digitalWrite(ledPin, LOW); // Turn off LED
      Serial.println("LED turned off");
    } else {
      // Invalid command
      Serial.println("Invalid command");
    }
  }
}