Hey, I know this can be done because it sort of has, but I've been looking into the possibility of using a Raspberry Pi Zero as an all-in-one chip reader and writer for downgrading due to its ease of programming, ability to run an OS, low cost, ability to do everything from the RPi0, and just being a generally better option than a Teensy. If used with a chip reader, it shouldn't be difficult to program for. I'll take a look at the mapping and see what I can do, but would anyone be able to...
Interested in a RPi0 based AIO chip option
Interested in a RPi0 based AIO chip option