<html>
<head>
<script src="http://apps.littlebitscloud.cc/api-http/littleBitsAPI.js"></script>
<script>
var littleBitsAPI = window.littleBitsAPI.defaults({
token: 'TOKEN',
device_id: 'DEVICE_ID'
})
</script>
</head>
<body>
token: <input onClick="littleBitsAPI.defaults({access_token: this.value})">
cloudBit id: <input onClick="littleBitsAPI.defaults({device_id: this.value})">
<button onClick="littleBitsAPI.input( function(data) {
console.log(data.percent)
document.getElementById('input_display').innerHTML = data.percent
})">Input!</button>
<div id="input_display"></div>
<button onClick="littleBitsAPI.output()">Output!</button>
</body>
</html>
Eg code: