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brouhaha · (This post was last modified: 07-04-2023 10:25 PM by brouhaha.)

(07-03-2023 04:22 PM)John Ioannidis Wrote: Where was the hardware documented? I tried wading through old forum posts, but I could not find anything.

The 20b and 30b are electrically identical, except for one GPIO pin.

There's a developer kit, which contains the schematic, LCD artwork, and sample code (but not the actual 20b source code). Thanks to Eric Rechlin for saving this. I was sure that I had a copy, but couldn't find it.

Richard Nelson wrote a report on 20b hardware interfacing.
[link corrected - thanks Sylvain!]