[GreenKeys] Project Update

[Russell Handorf]

Howdy do all-

I've gotten my teletype type fully restored, and I managed to make a
RaspberryPi HAT for it as well. I can now fully tx/rx from it, connect
it to the intertubes, etc. Any thoughts and advise are welcomed. I'm not
an EE. This has been a lot of fun, and this community has been great to
watch and interact with that got me to this spot.

My first code dump and KiCAD files are here:
https://github.com/rhandorf/teletype

Picture of the hat:
https://twitter.com/dntlookbehindu/status/1444124764444975107?s=20

Almost done repairing the re-transmitter, but the whole kit is here:
https://twitter.com/dntlookbehindu/status/1439051916894474240?s=20

Video of the keyboard being read before I made a hat:
https://twitter.com/dntlookbehindu/status/1420519452559519746?s=20

Video of it printing before I made a hat:
https://twitter.com/dntlookbehindu/status/1416138316316037125?s=20

And I took it traveling this last weekend for a "field test," and it
worked (4th picture):
https://twitter.com/shad0wbits/status/1444356100657188867?s=20

My next steps are adding a /dev/piteletype device (almost done) that can
take in any baud rate and buffer it to the machine, and vice versa.

Thanks again and 73's!

Russ