FightKeySmol

blueOkiris·FightKeySmol·pcb/FightKeySmol.kicad_pcb

About the FightKeySmol PCB

FightKeySmol is an open source RP2040/RP2350 PCB design by blueOkiris, published on GitHub under the MIT license. It is a 2-layer board measuring 168.9 × 83.8 mm, with 15 components from 2 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family.

It belongs with the keyboards designs in this gallery.

From the project

A tiny, inexpensive, DIY, keyboard-based fighting-game controller

I made a hitbox for myself a while back that's big and has an enclosure and all that good stuff and cost me maybe $80 to make.

However, lately I've been seeing people pay well over $100 for something that should be maybe $50 max, so I'm redesigning that to fit the style people want, so there's a cheap alternative.

Now yes, you're paying for quality with the others. This doesn't come with an enclosure, and it's DIY; it's minimal, but for some people, that's worth not dropping >= $100. It's an option. That's all

FightKeySmol, from the project README — From the project README

Main components on the FightKeySmol

Pico

FightKeySmol bill of materials (BOM)

15 components, 2 distinct parts.

Qty	Part	Footprint	Refs
1	Pico	RPi_Pico_SMD_TH	U1
14	MX1A-E1NW	MX1AE1NW	AK_BTN1, AP_BT1, DOWN_BTN1, HK_BTN1, HP_BTN1, LEFT_BTN1, LK_BTN1, LP_BTN1 +6

FightKeySmol design files

The KiCad project lives in the blueOkiris/FightKeySmol repository on GitHub; these links point at the commit this page was built from.

Layoutpcb/FightKeySmol.kicad_pcb
Schematicpcb/FightKeySmol.kicad_sch

FightKeySmol: common questions

What microcontroller does the FightKeySmol use?

The FightKeySmol is built around the Pico, from the RP2040/RP2350 family.

How big is the FightKeySmol PCB?

The FightKeySmol measures 168.9 × 83.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the FightKeySmol?

15 components, from 2 distinct parts. The full bill of materials is listed on this page.

Where can I download the FightKeySmol design files?

From the blueOkiris/FightKeySmol repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the FightKeySmol design in my own project?

Yes, under the terms of its MIT license, which blueOkiris chose for the repository.

Can I test firmware for the FightKeySmol without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.