usb-next
This is an implementation of an adapter to let you run a NeXT keyboard over USB.
A great deal of credit goes to Limor Fried, who wrote a tutorial that I used heavily in my early versions of this code. Parts of that code are reused here under the BSD license.
I used this as a way to learn Arduino, and embedded software work, and hardware reverse engineering. I don't think this code is especially well-structured or thought out!
Compiling and flashing
Requires arduino-cli. Use make upload to upload to an Arduino Nano.
Looks for the arduino at /dev/arduino, which assumes that udev has a rule
like this:
SUBSYSTEM=="tty", ACTION=="add", ATTRS{idVendor}=="2341", ATTRS{idProduct}=="8037", SYMLINK+="arduino"
(that's in my /etc/udev/rules.d/10-local.rules file).