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2 layers83.6 × 63.8 mmMicrokeys, the printed circuit board in 3D

A custom micro board

Size
83.6 × 63.8 mm
Copper layers
2
Thickness
1.6 mm
Parts
23
Nets
25
Pads
105
Tracks, vias
131, 7
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
4 Jan 2026
Updated
24 Jan 2026

Overview

Microkeys is an open-source printed circuit board by hellofaizan, from the hellofaizan/microkeys repository on GitHub. It is a 2-layer board of 83.6 × 63.8 mm with 23 parts on 25 nets, routed with 131 tracks and 7 vias.

It is built around the 1N914BWS. Its parts include 11 diodes, 11 switches and 1 IC. It belongs with the RP2040 boards of this library.

Main components

1

README

README.md

MicroKeys

Inspiration

I wanted a small additional keyboard for more customised keybinds, so I thought of making one by myself

Challenges

The difficulty arrived after I designed the whole pcb and started looking for 3d design, I wa on Omarchy Arch Linux OS, Fusion 360 is not by default supported by Omarchy, So I had to roll back to Windows 11 to use Autodesk Fusion 360

About

This contains 11x Switches. I'll probably assign shortcuts for opening apps faster or just minecraft keybinding who knows. The MCU is a Seed Xiao RP2040 which has usb-c. The case has a bottom and a two-in-one top that holds keys and MCU, it acts like a framer.

Case

The case features a very simple clean white look.

Thickness

  • Top: 1.50mm
  • Bottom: 13mm
  • Total: 14.5mm

Specifications

BOM:

  • 11x Blank DSA Keycaps
  • 11x Cherry Style Switches
  • 11x 1N4148 diodes
  • 1x XIAO RP2040
  • 4x M3x16 Bolt
  • 4x M3x4 Heatset
  • 1x PCB
  • 1x Case

Others:

  • KMK Firmware
  • top.step
  • bottom.step
SchematicPCB3D PCB
imageimageimage

Notes: Top printed in Orange. Bottom in White. PCB Color has to be black or green.

Parts

23
QtyValueFootprintReferences
111N914BWSPCM_Diode_THT_AKL:D_DO-35_SOD27_P7.62mm_HorizontalD1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11
11Push_ButtonMX Cherry:MX-Solderable-1USW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11
1XIAO-RP2040-DIPOPL Library:XIAO-RP2040-DIPU1

Questions

How big is the Microkeys PCB?

It measures 83.6 × 63.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Microkeys use?

23 parts, built around the 1N914BWS. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Microkeys KiCad files?

From the hellofaizan/microkeys repository on GitHub, at the commit this page was made from: the board is PCB/MicroKeys.kicad_pcb and its schematic PCB/MicroKeys.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Microkeys design in my own project?

Its repository states no licence, so its author keeps all rights: ask hellofaizan before reusing the design.

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