Will push schematics up this weekend and interested in hearing comments on use cases etc. Ping me!
Name credit: @9600 
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A serendipitous Taobao discovery means that ZZH* might ship with a cheap and cheerful plastic enclosure. Sent off some test gerbers, going to be a tight squeeze as the PCB had to get a bit shorter... * https://electrolama.com/projects/zig-a-zig-ah/ …pic.twitter.com/LjbSI75WFZ
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Getting there! Not particularly happy about the chopped up SWD header (better than not having one!) and need to find a tiny low-profile pushbutton that doesn't suck. Also new USB-UART chip and smaller TVS and LDO.pic.twitter.com/A3nHx1JPiC
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zzh Revision A, Draft 1 pushed (https://github.com/electrolama/zig-a-zig-ah/tree/master/Revision%20A …), comments and pointing out where I might have messed up most welcome
If you don't have EAGLE handy, schematic up at: https://electrolama.com/_assets/zzh-RevA-Draft1-010220.pdf …pic.twitter.com/RDujKbYCDP
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Just pushed zzh Rev A, Draft 2 to the repo, many thanks to
@matthewvenn and@GeorgeIoak for the design review! Need to tinker with the dev kit to make sure BSL pin etc is correct and will probably send this off next weekend. As before, let me know if you spot a bug!pic.twitter.com/zVUSnci7D9
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zzh Rev A, Draft 3 up on the repo and first batch of test PCBs ordered! Will order the missing bits and bobs and a stencil to get ready for the arrival of the boards.pic.twitter.com/ocYVDM1sZh
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Also added the design files for a small debug-adapter board to convert the cut down SWD connector to a standard one. Not a fan of custom versions of standardised connectors but in this case it was a compromise (so that I could keep the design single-sided placement)pic.twitter.com/bBZzaTMQ1T
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Debug adapter boards along with some nice chip samples have arrived! Also created a little mock up of the finished product with some protoboard. Still waiting on PCBs and stencil, fingers crossed they arrive this week so I can build a couple next weekend.pic.twitter.com/S0b7fnVzN4
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PCBs, parts and stencil finally in for zzh Revision A. Going to bake a few today and if there aren't any major problems will send them off to a few friends for testing/validation.pic.twitter.com/cURPs5paur
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Must spend time with kicad... Looking good
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Replying to @darachennis
This was in Eagle, anything new I am going to force myself to start and finish in Kicad.
0 replies 0 retweets 1 likeThanks. Twitter will use this to make your timeline better. UndoUndo
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