GP2040-CE (V5.6E - USB-B, USB-C) Open Source Multi-Console Fight Board

Unlock the ultimate foundation for your custom fight stick or DIY controller project with the GP2040-CE Advanced Breakout Board (v5.6E) — an open-source, high-performance encoder board built around the Raspberry Pi RP2040 microcontroller and pre-loaded with the powerful GP2040-CE firmware.

Designed for modern arcade and gaming controller builds, this breakout board offers broad compatibility, low-latency performance, and extensive configurability — all in a durable, breakout-friendly PCB ideal for wiring harnesses, screw terminals, and standard Brook form-factor cases.

⚡ Key Features

Multi-Platform Support – Natively works with PC (XInput/DirectInput), Nintendo Switch, Xbox 360 & PS3, Android, Steam Deck, and more.

USB Passthrough – Built-in USB port for PS4, PS5, Xbox One + Series S/X compatibility using dongles such as Mayflash MagicBoots 1.1, PXN N5, P5Boots, & Brook WingmanFGC v1.

Low Latency Performance – Experience ultra-responsive control with <1 ms input latency across supported modes thanks to optimized firmware.

Connectivity – USB-B and USB-C ports, plus standard Brook-compatible 20-pin and 4-pin JST connectors for wiring

SOCD Cleaners & Advanced Logic – Multiple SOCD cleaning modes (Neutral, Up Priority/Stickless, Second Input Priority) for competitive and leverless style layouts.

Toggle & Emulation Features – Emulate left/right analog sticks via D-pad or use dedicated toggle switches; support dual direction, reversed inputs, and turbo functions.

Web-Based Configuration – Customize mappings, LED profiles, splash screens, and more through built-in web configurator — no software downloads required.

LED & Display Support – Integrated headers for addressable RGB LEDs and support for monochrome I²C displays (e.g., SSD1306).

Flexible Wiring Options – Screw terminals and standard 20-pin/Brook-compatible headers make wiring buttons, switches, and joystick easy.

Please note: As an open-source project, the GP2040-CE firmware is frequently updated and improved. Because of this, our support for firmware-related issues is limited. For help, we strongly recommend joining the official Open Stick Community Discord and reviewing the GP2040-CE documentation at https://gp2040-ce.info.

Download the GP2040-CE v5.6 Info Card
*Includes input shortcuts, console mapping, GPIO pinouts, and more.