GP2040-CE VS GP2040

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.

My advice is to rework your mixbox, as it is pretty much the only long-term solution. Personally, I would swap out the keyboard microcontroller and instead wire your keyswitches to a PiPico running the GP2040-CE firmware. That way you can easily remap the keys, as well as select between your controller acting one of these:

Talking about RP2040 powered controller firmware. GP2040 is an amazing project, which is used a lot in the Fighting Game Community where custom controllers are common. https://github.com/OpenStickCommunity/GP2040-CE

you can connect to it the same way as a brook pcb (without soldering), and its firmware is far more customizable with great input latency test results. you can read about the firmware here: https://github.com/OpenStickCommunity/GP2040-CE

congrats on the build & thank you for sharing your experience! if I may suggest you to take a look at the open source project using the Raspberry Pi Pico and other boards based on the RP2040 microcontrollers. https://github.com/OpenStickCommunity/GP2040-CE

In theory, one would only need to use the Pi Pico (Using the CP2040-CE Firmware), since many play fighting games on PC; At least, that I am aware of. This, along with a few other things, would make it an "okay" controller at best, IMO.

I suspect GP2040-CE will pretty soon have some capability to switch between profiles on the fly, though of course you can never predict these things with volunteer open source development. In any case, I'd recommend GP2040-CE as an option over the Brook. You can buy a Pico breakout such as this one for cheaper than the Brook & have access to all sorts of cool features now and in the future.

I think they use https://github.com/FeralAI/GP2040

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.

My third revision of this and looking for feedback to improve. I'm using an secondary USB-C port here to test this schematic before using it on other builds where the Pico placement is constrained by board clearances and mounting holes. The Pico is running GP2040, https://github.com/FeralAI/GP2040, which allows the device to work on multiple systems. I'm new to PCB design and have grabbed some examples posted here before and hopefully following guidelines in the wiki.

It might also be worth checking out the pi pico as the brains, though I believe you need a second piece of hardware to make it work on ps4. The pi pico itself should only be 10$~ not sure how much the ps4 adapter thing would cost. The firmware to look into is https://github.com/FeralAI/GP2040

Hi, does anyone know how to add a PS Home button to your controller? I have a DURAL hitbox which uses GP2040 Firmware (https://github.com/FeralAI/GP2040). I was planning on going to an offline event and needed to make my controller PS4 proof for which I was hoping to use a PS3 to PS4 adapter. However I would still need the PS Home button because PS4 is weird. If anyone knows a solution help would be greatly appreciated.

Microsoft totally does. That's why GP2040, an open source controller firmware, doesn't support Xbox or PS. The way it's typically done now is to have a require a real controller to handle the authentication, with the 3rd party input in between the real controller and the console (passthrough in that chart)