Oh man I LOVE this question. I’m a huge fan of connecting IOT devices and microcontrollers to Babylon.
Unfortunately I only have experience messing around with the wireless methods of communication.
That said I know that we’ve had a few community members who have had success with wired communication.
@ilhamachmada showed off a pretty awesome project in this vein here:
Also if I remember correctly, I think @bigrig showed off a cool project with a wired boxing glove controlling a virtual one at one point.