Final design works with some minor caveats (had to bodge two workarounds). The whole design process, validation and theory of operation is outlined in the HAS included in the project documents. All documentation that I plan on uploaded has been pushed. I have not pushed any gerbers since I doubt anyone will actually fab this.

This design has been a bit of a time sink but I’m glad I have a finished widget at the end of all it. I improved my hardware debugging along the way, and got a lot better at hand soldering SOP packages…

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Anyways here is the widget counting in slow motion  : ) 

If you have any questions feel free to poke around the documentation for this project, or drop a comment.