Mattia Dal BenSince I got bored waiting for the adapter cables to arrive I started designing an adapter board for the Core51822(b) module to Arduino Pro Micro footprint.
Its main goal is to replicate what I achived using the perfboard using a proper PCB. I then realized that, with some adjusting, it might be used to give wireless functionalities to most of the open-source split keyboard I know of ( Iris, Zen, Let's split, etc.).
As usual here comes some PCB eye-candy:
I had some problems making this a double-side PCB but I am sufficiently confident it should work. Obviously the CR2032 receptacle needs to be mounted on the top and the Core51822 on the bottom of the board. Also some electrical tape might be needed to prevent shorts on the Core51822 pads for when the battery will be in place.
The main switch should be easily reachable since it is placed where the USB port should be.
After some more work (mainly to make it more general-purpose) I'll manufacture these and see if this fits my needs.
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Exactly something I was thinking about. Are you still working on this?
Just a though...why haven't you connected all the pins from the ProMicro? This way the only keyboards that can use this are the ones using the connected pins, or am I missing something?
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I paused this project for now. I didn't like the battery solution, I might come back to it in the future...
As for the connection you're right and in fact in a later revision I connected all the pins . :)
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Thanks! Are these revisions also opensource and available somewhere by any chance? I'm not really a good PCB designer and it would help to see an expert's work. :)
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I wouldn't call myself an expert XD
I have not published the project's files because it's still pretty rough, but If you want them you can PM me and I will send them to you.
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