seriality – Project Hosting on Google Code – A browser plugin enabling Serial port access from JavaScript. Connect your web apps to microcontrollers!

Amazingly simple, but this is a really exciting project with massive hackability potential! Here’s a quick example from the project page:

<html>
<head>
  <script type="text/javascript">
    function setup()
    {
      var serial = (document.getElementById("seriality")).Seriality();
      serial.begin(serial.ports[0], 9600);
      serial.write("Hello World");
    }
  </script>
</head>
<body onload="setup();">
  <object type="application/Seriality" id="seriality" width="0" height="0"></object>
</body>
</html>