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2 layers263.2 × 109.3 mmPinboard, the printed circuit board in 3D

24 key unibody keyboard created for chorded input with the Pinchord layout

Size
263.2 × 109.3 mm
Copper layers
2
Thickness
1.6 mm
Parts
27
Nets
32
Pads
249
Tracks, vias
268, 0
Pours
1
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
28 May 2026
Updated
30 May 2026

Overview

Pinboard is an open-source printed circuit board by rzssh, from the rzssh/pinboard repository on GitHub. It is a 2-layer board of 263.2 × 109.3 mm with 27 parts on 32 nets, routed with 268 tracks and 0 vias.

It is built around the RP2040-ZERO. Its parts include 24 switches and 1 IC. It belongs with the keyboards and input boards and the RP2040 boards of this library.

Main components

1

README

README.md

pinboard

A 24-key unibody keyboard built for chorded typing with the Pinchord layout.

pinboard PCB

Pinchord is a chording system where you press a few keys at the same time to spell whole words instead of tapping them out letter by letter. The keys are split into three groups: the left fingers handle the start of a word, the thumbs and right index do the vowels, and the right fingers finish it off.

Specs

  • Support for both Kailh Choc v1 and v2 switches, with both hand-soldering and hotswap sockets supported
  • Direct wiring (no diodes) with the help of using RP2040-Zero's pad pins on the back of the board
  • Extremely cheap budget build

Building one

Send the gerbers (see the releases page) off to your fab of choice. Once the boards are there, solder on the RP2040-Zero and optionally the hotswap sockets, then snap in your switches and keycaps.

Parts

27
QtyValueFootprintReferences
24SW_Choc_1urznkbd-switches:SW_Choc_v1v2_1u_Solder_HotswapSW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +8
1LOGOlogo:garfG***
1RP2040-Zerorznkbd-mcu:RP2040-Zero_THT_PadsU1
1doftlogo:doftG***

Questions

How big is the Pinboard PCB?

It measures 263.2 × 109.3 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Pinboard use?

27 parts, built around the RP2040-ZERO. 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 Pinboard KiCad files?

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

Can I use the Pinboard design in my own project?

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

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