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QUARTER-CIRCLE-QUANDARY

CACHEMonney·QUARTER-CIRCLE-QUANDARY·PCB/QCQ.kicad_pcb

QUARTER-CIRCLE-QUANDARY PCB layout, top view — open source RP2040/RP2350 board by CACHEMonney

About the QUARTER-CIRCLE-QUANDARY PCB

QUARTER-CIRCLE-QUANDARY is an open source RP2040/RP2350 PCB design by CACHEMonney, published on GitHub. It is a 2-layer board measuring 181 × 81 mm, with 13 components from 3 distinct parts.

Its main chip is the XIAO-RP2040-DIP, from the RP2040/RP2350 family. By type, the board carries 10 switches, 2 diodes and 1 IC.

From the project

Hack project that can be used for editing shortcut using the ergonomics of a hitbox adapting for left-handedness *(it is also a hitbox)

Do you want to make programming even easier?

Well do I have the project form you, the quarter circle quandary hopes to take you from wasting away in pools to being Daigo. A project that can be used for editing shortcuts and programming using the ergonomics of a hitbox adapting for left-handedness to suit all your fighting game needs as well as being useful in daily computer activity with multiple layers of inputs for different usages.

QUARTER-CIRCLE-QUANDARY, from the project README
From the project README

Main components on the QUARTER-CIRCLE-QUANDARY

XIAO-RP2040-DIP

QUARTER-CIRCLE-QUANDARY bill of materials (BOM)

13 components, 3 distinct parts.

QtyPartRefs
1
XIAO-RP2040-DIP
U1
10
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +2
2
SK6812MINI
D2, D3

QUARTER-CIRCLE-QUANDARY design files

The KiCad project lives in the CACHEMonney/QUARTER-CIRCLE-QUANDARY repository on GitHub; these links point at the commit this page was built from.

QUARTER-CIRCLE-QUANDARY: common questions

What microcontroller does the QUARTER-CIRCLE-QUANDARY use?

The QUARTER-CIRCLE-QUANDARY is built around the XIAO-RP2040-DIP, from the RP2040/RP2350 family.

How big is the QUARTER-CIRCLE-QUANDARY PCB?

The QUARTER-CIRCLE-QUANDARY measures 181 × 81 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the QUARTER-CIRCLE-QUANDARY?

13 components, from 3 distinct parts. The full bill of materials is listed on this page.

Where can I download the QUARTER-CIRCLE-QUANDARY design files?

From the CACHEMonney/QUARTER-CIRCLE-QUANDARY repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the QUARTER-CIRCLE-QUANDARY design in my own project?

The repository has no license, so all rights stay with CACHEMonney. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the QUARTER-CIRCLE-QUANDARY 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.

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