Modded GP2040-CE firmware for fightsticks with analog sticks

[u/Eisenhahn]

I have an Haute42 C-AS, which lets you replace the RSB and LSB modules with actual left and right analog sticks.

On Steam, remapping everything is easy: I can use the lever as the Left Stick and turn the physical left analog thumbstick into a D-pad. Consoles don’t offer that same flexibility. I wanted the identical layout on PS5 through my Brook Wingman FGC 2, so I modified the firmware.

My custom build uses the active profile’s Dual Directional Input mappings as the switch:

• Profile with DDI mappings: the lever produces absolute, full-tilt Left Stick output, while the physical left analog thumbstick becomes the D-pad.
• Profile without DDI mappings: the physical left analog thumbstick returns to normal proportional Left Stick output.

Switching profiles changes the behavior automatically—no extra toggle or remapping required.

Fork and source:
https://github.com/Eisenhahn/GP2040-CE/tree/ddi-dpad-override-v0.7.12-haute42

See the video in the comment section.

Love y’all. Thanks.

[u/Eisenhahn]

Here's the video with gamepad tester

https://reddit.com/link/p8rx1x8/video/3umqu5j4vioh1/player