My Kingdom for Smooth ABS SA Keycaps
Every time I build a new keyboard, I go hunting for keycaps. And every time I go hunting, it eventually devolves into a desperate search for SA (or equivalent) profile keycaps with a smooth finish. SA is the ultimate profile, IMHO, and they're relatively hard to come by. Signature Plastics, which is where a lot of SA sets come from like the T0mb3ry SA Carbon set (they might actually hold the trademark on the SA profile if I'm not mistaken), is reportedly going through some management/ownership struggles (last I heard, they're looking for new ownership), and along with apparently the rest of the industry, they seem to be neglecting this superior keycap profile in their own stocks. If you order direct from them, they have a couple themed sets in stock (maybe), but generally you can have any color you want, as long as it's black or white. Drop carries a fair number of MT3 profile sets, which are very similar to SA. But just like SP's SA-P profile, they're made with a different...
Apr 10, 2024
I haven't decided yet if I will do it or not, however, what I would probably do is run it on both pro micro and pi. I would use a toggle switch to physically switch between the female keyboard output, and to power the raspberry pi.
However, if I needed to run both the pi and the preserve the USB keyboard functionality simultaneously, I would STILL need a toggle switch, to disconnect the keyboard from the pi so the strokes don't get sent to both OS's at the same time, even if I had the ability to do so.
Just a bit of reality I came to knocking this idea around in my head as well.
The pi is garbage for doing USB as it non-native. If you want no pro-micro and ONLY a pi, you will need to directly wire the matrix, and do it yourself. I think that amount of work isn't worth it.