[kilpikaarna]

I've tried building an arcade stick in the past by having the Arduino emulate a keyboard and doing standard Arduino lib digitalRead of the buttons and sending keypresses (for MAME) over USB. It worked, but the lag was terrible. I wonder if this fares any better.

In any case, if you can handle the wait, you can get a knockoff SNES USB pad from China for a few bucks. The plastic will feel way off, but you can probably swap over the shell from your original pad with little effort. And you'll get fresh rubber button pads, rather than 30 year old spongy ones, as a bonus. :)

[frameset]

If you're making a home made arcade stick, check out the GP2040-CE project - https://github.com/OpenStickCommunity/GP2040-CE

It's got low latency and good compatibility for a bunch of platforms. Even some compatibility for PS4.