How to make a web app for your own Bluetooth Low Energy device? Step 4

main.js

// Get references to UI elements
let connectButton = document.getElementById('connect');
let disconnectButton = document.getElementById('disconnect');
let terminalContainer = document.getElementById('terminal');
let sendForm = document.getElementById('send-form');
let inputField = document.getElementById('input');

// Connect to the device on Connect button click
connectButton.addEventListener('click', function() {
  connect();
});

// Disconnect from the device on Disconnect button click
disconnectButton.addEventListener('click', function() {
  disconnect();
});

// Handle form submit event
sendForm.addEventListener('submit', function(event) {
  event.preventDefault(); // Prevent form sending
  send(inputField.value); // Send text field contents
  inputField.value = '';  // Zero text field
  inputField.focus();     // Focus on text field
});

// Launch Bluetooth device chooser and connect to the selected
function connect() {
  //
}

// Disconnect from the connected device
function disconnect() {
  //
}

// Send data to the connected device
function send(data) {
  //
}