webSerial.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Web Serial API Example</title>
</head>
<body>
  <h1>Conexión al puerto serie</h1>
  <button onclick="requestPort()">Conectar al puerto serie</button>
  <button onclick="readData()">Leer datos</button>
  <input id="dataInput" type="text" placeholder="Escribe algo...">
  <button onclick="writeData(document.getElementById('dataInput').value)">Enviar datos</button>
  <button onclick="closePort()">Cerrar puerto</button>

  <script src="serial.js"></script>
</body>
</html>