This is the first functional prototype of a custom #RaspberryPi Pico hat that will convert any USB keyboard and/or mouse to PS/2.

https://image.nostr.build/ff7ee1f37abf670c5f08308ad1b5acc9307490015301873c6505e8cc9522097f.jpg

The reason I want one is so I can use modern keyboards with #QubesOS and not have to expose dom0 to any USB devices, ever! This is a #security feature shich I've wrote about previously and #Qubes has documented well.

As the picture implies, the PBC design was missing a trace, which I've patched with that red wire. I also had to cut the PS/2 cable apart and make it into a "crossover" cable to compensate for my having the pins reversed on the Mini-DIN-6 connector (I had it wired like a cable instead of a jack).

I've updated the PCB design to fix all these things (and some more minor issues) in case anyone else is interested in buying or building one of these little gems.

I am an #infosec #electronics #maker, hear me roar.