DaemonBite-Arcade-Encoder VS DIYB0XX

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Microcontroller: Arduino pro micro clone. Sells for peanuts on Ali Express. I have no coding experiennowledge. I tried to use this guide, but it only made the controller show up as a generic controller on windows/Linux. SF6 Didn't recognise the controller. So I programmed the Arduino as a keyboard and now it works fine on PC and Steam Deck.

I've had a great experience with Arduino Pro Micro's running the DaemonBite firmware, and the RPi Pico GP2040 firmware should be similarly great. Both have extremely low latency. The Brook Universal board is another good one. Other than that, I usually just use either a DualShock 3 pad over USB or a wired 360 pad. I also like the iBuffalo SNES pad and Logitech Precision pads.

The NEO2USB is just an Arduino running the DaemonBite firmware. If you (or someone you know) can do basic soldering and can follow a tutorial for loading code onto an Arduino you can DIY an identical adaptor for about a third of the price of the Neo2SD. If you can get access to a 3D printer there are also case designs available for free.

If you can solder (or know someone who can), you could swap out the usb encoder for a Daemonbite and that would give you less than 1ms of input latency.

I'm not sure, I only use it for console controllers, but I would assume so. This GitHub repo has the pinout for arcade sticks: https://github.com/MickGyver/DaemonBite-Arcade-Encoder

I had one of those pcbs, the input lag is bad and inconsistent, the build quality it's very cheap, and has no xinput support... Nowadays are better alternatives like Brook Zero-Pi, Tachyon PCB, or DIY stuff like GP2040-CE ( https://github.com/OpenStickFoundation/GP2040-CE ) or DaemonBite ( https://github.com/MickGyver/DaemonBite-Arcade-Encoder )

Do you want a single box with a split layout (kinda like the b0xx style controllers) or a splitbox where there are two sides split out to whatever distance you find comfortable.

I haven't done this yet but this is the image from the DIYB0XX project

If you are really dedicated to the idea you would probably follow something like this, but instead of making a B0XX controller you'd use keyboard keys instead of arcade buttons. All of which would be mapped to an arduino that you can then wire up to a GCC port so you can plug the whole controller into a gamecube controller adapter.

i haven't gotten into microcontroller programming yet but i have a couple of projects in mind just to learn about this stuff. I've come across code/firmware projects such as passing link, daemonbite, teensy stickless , and diyb0xx to name a few.

Ya as Godwin_Point said, I've documented how to add GC support on my website/github/discord server.

can also look at something like diyboxx for measurements as well

you can buy a smashbox, buy the smashbox experience kit, diy your own B0XX with an ardunio, find an analog joystick and either connect it to a brook board (ps4 plus audio or wireless board) or padhack a pro controller.

hitbox sells the pcb or if you want to go with ardunio then diy B0XX