MC64BT - PCB Help

[cwlsmith]

Hey everyone,

I recently purchased a “mystery” keyboard on eBay as a project board. I received it yesterday and took it apart to see what I was working with. Here are some pictures so you can see what I see:

https://imgur.com/a/1PRYCu2

So the PCB is marked “MC64BT V1.0”. I can’t seem to find anything about that PCB anywhere. Don’t know what firmware is has. Any information would be awesome. Also, a small microcontroller was rattling around inside the case, and I’m not sure where it goes. I assume U3, but have no idea what to do.

Thanks in advance!

[Tactile]

It might be a clone or copy of a KC64 keyboard.