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2 layers38.1 × 50.5 mmMacroknob, the printed circuit board in 3D

ZMK-based dongle for split keyboards. 2 keys and a knob.

Size
38.1 × 50.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
6
Nets
25
Pads
50
Tracks, vias
22, 29
Pours
1
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
29 Dec 2024
Updated
10 Feb 2026

Overview

Macroknob is an open-source printed circuit board by theepicflyer, from the theepicflyer/macroknob repository on GitHub. It is a 2-layer board of 38.1 × 50.5 mm with 6 parts on 25 nets, routed with 22 tracks and 29 vias.

Its parts include 4 switches, 1 IC and 1 connector. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.

README

README.md

macroknob

image

A simple 2-key, 1 rotary encoder shield for ZMK. Designed to complement any ZMK keyboard as a dongle.

This repo contains the PCB and case files for the MacroKnob. The software (shield config) can be found here: https://github.com/theepicflyer/macroknob-shield.

Parts

6
QtyValueFootprintReferences
2KeyswitchScottoKeebs_MX:MX_PCB_1.00uS1, S2
1Conn_01x02_SocketConnector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_HorizontalJ1
1Nice_Nano_V2ScottoKeebs_MCU:Nice_Nano_V2U1
1RotaryEncoder_SwitchScottoKeebs_Scotto:Encoder_EC11_MXSW1
1SwitchButton_Switch_SMD:SW_SPST_PTS810SW2

Questions

How big is the Macroknob PCB?

It measures 38.1 × 50.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Macroknob use?

6 parts. 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 Macroknob KiCad files?

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

Can I use the Macroknob design in my own project?

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

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