HardLabs

Mini kbd

axhixh·mini-kbd·choc-mini/kicad/mini.kicad_pcb

Mini kbd PCB layout, top view — open source RP2040/RP2350 board by axhixh

About the Mini kbd PCB

Mini kbd is an open source RP2040/RP2350 PCB design by axhixh, published on GitHub under the Custom license license. It is a 2-layer board measuring 126.3 × 89.3 mm, with 20 components from 3 distinct parts.

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

It belongs with the keyboards designs in this gallery.

From the project

Split keyboard with Choc mini or Choc v1 switches and RP2040 Zero

Mini kbd bill of materials (BOM)

20 components, 3 distinct parts.

QtyPartRefs
1
—
RP2040Zero1
18
Kailh_PG1232
S1, S2, S3, S4, S5, S6, S7, S8 +10
1
TRRS-PJ-320A-dual
TRRS1

Mini kbd design files

The KiCad project lives in the axhixh/mini-kbd repository on GitHub; these links point at the commit this page was built from.

Mini kbd: common questions

What microcontroller does the Mini kbd use?

The Mini kbd is built around the RP2040-Zero, from the RP2040/RP2350 family.

How big is the Mini kbd PCB?

The Mini kbd measures 126.3 × 89.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mini kbd?

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

Where can I download the Mini kbd design files?

From the axhixh/mini-kbd repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Mini kbd design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Mini kbd 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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