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2 layers288.8 × 335.6 mmRef keyboard, the printed circuit board in 3D

I'm making 60% layout keyboard pcb for happyhacking, and other layouts.

Size
288.8 × 335.6 mm
Copper layers
2
Thickness
1.6 mm
Parts
347
Nets
130
Pads
939
Tracks, vias
3,305, 179
Pours
7
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
29 Dec 2025
Updated
29 Jan 2026

Overview

Ref keyboard is an open-source printed circuit board by wilydodo, from the wilydodo/60_allround repository on GitHub. It is a 2-layer board of 288.8 × 335.6 mm with 347 parts on 130 nets, routed with 3,305 tracks and 179 vias.

It is built around the ATMEGA32U4. Its parts include 87 switches, 65 diodes, 44 connectors, 15 resistors and 8 capacitors. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.

Main components

1

README

README.md

I'm making 60% layout keyboard pcb for happyhacking, and other layouts.

can used in dz60 and gh60.

firmware: zmk

Image

used parts mcu module - E73-2G4M08S1C
battery charger - TP4054-42-SOT25R
3.3v regulator - XC6206P332MR-G
power path diode - BAT54C
정전기 방지 - SRV05-4A usb-c -
도터보드 - Unified Daughterboard
외부 핀 - 통신용(i2c, spi) 5개, 기타 핀 7개, 전력 3개(gnd, 3v3, 5v)
추가 핀 커넥터 - JST SH (1.0mm)

Parts

347
QtyValueFootprintReferences
68LEDmx1a:MX1A-led_no3dDB02, DB04, DB06, DB07, DB09, DB11, DB14, DB16, DB17, DB19, DB21, DB22, DB23, DB24, DB26, DB041 +52
651N41480805:0805DD01, D02, D03, D04, D05, D06, D07, D08, D09, D10, D11, D12, D13, D14, D15, D16 +49
62MX1Amx1a:MX1AS01, S01, S02, S03, S04, S05, S06, S07, S08, S10, S11, S12, S13, S14, S15, S16 +46
42CONN_1padP1, P2, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19, P20, P21, P22, P23 +26
22MX1Aamx1a:MX1A_no3dS09, S031, S041, S50, S63, S101, S102, S151, S301, S302, S0512, S552, S601, S602, S641, S6512 +6
16LEDaMX1A-ledDB05, DB10, DB15, DB051, DB55, DB101, DB102, DB151, DB551, DF21, DF22, DF23, DF211, DF221, DF231, DF232
15VAL**mx1a:MXSTMXST, MXST, MXST, MXST, MXST, MXST, MXST, MXST, MXST, MXST, MXST, MXST, MXST, MXST, MXST
10Rres:resistorR6, R7, R8, R9, R10, R11, R12, R13, R14, R15
9VAL**MX1A-wireMXWIRE, MXWIRE, MXWIRE, MXWIRE, MXWIRE, MXWIRE, MXWIRE, MXWIRE, MXWIRE
6VAL**hole:PKRHHOLE, HOLE, HOLE, HOLE, HOLE, HOLE
4100n0805:0805CC4, C5, C6, C7
4VAL**hole:PKRHSLHOLE, HOLE, HOLE, HOLE
210k0805:0805RR3, R5
21u0805:0805CC3, C8
2220805:0805RR1, R2
222p0805:0805CC1, C2
2FIDUCIALhole:FIDUCIALFID, FID
2MINIusb:67503J1, J1
2MX1Amx1a:MX1A_no3dS64, S681
2VAL**hole:PKRHCHOLE, HOLE
1300res:resistorR4
1ASX3Fndk:4-SMDX1
1ATMEGA32U4tqfp:TQFP44IC1
1DTSM-6dtsm:KSEM31GLFSS0
1LEDMX1A-ledlockDC3
1LOGOlogos:gh60G***
1cc_logologos:ccG***
1oshw_logologos:oshwG***

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Questions

How big is the Ref keyboard PCB?

It measures 288.8 × 335.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Ref keyboard use?

347 parts, built around the ATMEGA32U4. 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 Ref keyboard KiCad files?

From the wilydodo/60_allround repository on GitHub, at the commit this page was made from: the board is kicad/ref-keyboard.kicad_pcb and its schematic kicad/dummy/not-keyboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Ref keyboard design in my own project?

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