Build instructions for the ‘Baby Interface Device’ (BID), an ultra-simple USB Human Interface Device for Tiny Humans. Built to allow my kid to interact with the computer without destroying my keyboards. The BID is a DIY USB HID (Human Interface Device) that acts as a keyboard to trigger a single keypress (space bar in this case). The concept is to create a very large button that is baby-friendly to allow an infant to interact with computer games and educational software.
The project can be assembled in less than an hour for around $35 or less and requires very little knowledge of electronics or coding.
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Here is the “anecdotal evidence this works” http://www.youtube.com/watch?v=1AA4E3x2qQU
This was from the prototype i built for him with an arduino back in february. The video of him playing with it on the floor was a little modest because i had to try to keep him from slamming it all over the place and he wasn’t really in the mood to play nicely with it. He does use it all the time though, and it works well.