[moreati]

That should be possible soon. Chrome Canary has experimental support for the Web Bluetooth API.

https://developers.google.com/web/updates/2015/07/interact-w...

https://webbluetoothcg.github.io/web-bluetooth/

[aaronbasssett]

Or you could always use the Gamepad API - https://developer.mozilla.org/en-US/docs/Web/API/Gamepad