was looking for more games in my library that i could write an interface for my button box for, and came across this extremely cool setup by the developers of Objects In Space. Time to track the devs down because i cant find documentation for their api on the internet
Turns out there was documentation the game's website just doesnt exist any more https://web.archive.org/web/20210618161211/http://objectsgame.com/the-controllers/ois-serial-data-protocol/