Skip to the content
PCBKitNew board
2 layers111 × 89.1 mmUrxin, the printed circuit board in 3D

A keyboard made inspired by Urchin, TOTEM and Ergonaut One.

Size
111 × 89.1 mm
Copper layers
2
Thickness
1.6 mm
Parts
41
Nets
35
Pads
292
Tracks, vias
419, 79
Pours
1
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
14 Oct 2024
Updated
14 Oct 2024

Overview

Urxin is an open-source printed circuit board by diegolhambi, from the diegolhambi/urxin repository on GitHub. It is a 2-layer board of 111 × 89.1 mm with 41 parts on 35 nets, routed with 419 tracks and 79 vias.

It is built around the XIAO NRF52840. Its parts include 17 diodes, 17 switches, 1 IC and 1 connector. It belongs with the nRF52 and nRF5x boards of this library.

Main components

1

README

README.md

Urxin

KiCad Render Urxin's top and bottom sides

A keyboard made inspired by Urchin, TOTEM and Ergonaut One.

Firmware

A ZMK Module containing the shield can be found in zmk-keyboard-urxin and an example of implementation can be seen in zmk-config-urxin.

BOM

List of parts for both sides.

NameQty
Kailh PG1350 Hot Swap Sockets34
SOD-123 Diodes34
Seeeduino XIAO nRF528402
Li-Po 601230 battery2
MSK-12C02 SPDT Switch2

Parts

41
QtyValueFootprintReferences
17D_Smallurxiao:Diode_TH_SMD_DUALD1, D2, D3, D4, D5, D6, D7, D8, D10, D11, D12, D13, D14, D15, D16, D17 +1
17SW_SPSTurxiao:Kailh_socket_PG1350_1.00u_optional_millmax_reversibleSW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17 +1
4MountingHoleurxiao:Hole_4.2mmH1, H2, H3, H4
1BATTurxiao:BatteryJ1
1SW_SPDTurxiao:MSK-12C02_DUALPWR1
1XIAO_nRF52840urxiao:XIAO_nRF52840_DUALU1

Questions

How big is the Urxin PCB?

It measures 111 × 89.1 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Urxin use?

41 parts, built around the XIAO NRF52840. 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 Urxin KiCad files?

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

Can I use the Urxin design in my own project?

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

Similar boards

  • 2 layers136 × 91.7 mmOne, the printed circuit board in 3D

    One

    ergonautkb/one

    Ergonaut One is an open-source ergonomic wireless split mechanical keyboard designed by Ergonaut Keyboards.

    56 parts210CERN-OHL-P-2.0
  • 2 layers117 × 96 mmOne s, the printed circuit board in 3D

    One s

    ergonautkb/one-s

    Ergonaut One S is an open-source ergonomic wireless split mechanical keyboard designed by Ergonaut Keyboards.

    50 parts10CERN-OHL-P-2.0
  • 2 layers161.9 × 120.5 mmDodo keyboard, the printed circuit board in 3D

    Dodo keyboard

    gorbit99/dodo-keyboard

    60% split wireless keyboard

    116 parts9
  • 2 layers25 × 20 mmXIAO CR2032-KEY, the printed circuit board in 3D

    XIAO CR2032-KEY

    kaz-mac/xiao_1key_blekey

    1ボタンだけのワイヤレスキーボード for XIAO nRF52840

    9 parts3MIT
  • 2 layers118.5 × 91.4 mm1 3S, the printed circuit board in 3D

    1 3S

    igor-salt/ERGO

    4 var 1.3

    46 partsCERN-OHL-P-2.0
  • 2 layers136 × 93.4 mmKBRD REN, the printed circuit board in 3D

    KBRD REN

    igor-salt/KBRD_REN

    Эргономичная клавиатура

    53 partsCERN-OHL-P-2.0
  • 2 layers286.4 × 95.9 mmCckb main, the printed circuit board in 3D

    Cckb main

    ms0216/keyboard-foundry

    自作キーボードを、現物になる前に機械で確かめながら作るための作業場(KiCad・build123d・ZMK)

    149 parts