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2 layers80 × 83 mmMacropad, the printed circuit board in 3D

This macropad has 9 keys, an OLED display, a rotary encoder, and 20 individually adressable LEDs for an underglow effect.

Size
80 × 83 mm
Copper layers
2
Thickness
1.6 mm
Parts
54
Nets
45
Pads
191
Tracks, vias
250, 24
Pours
1
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
8 Jun 2026
Updated
27 Jun 2026

Overview

Macropad is an open-source printed circuit board by ZSmaster1, from the ZSmaster1/macropad repository on GitHub, published under the MIT licence. It is a 2-layer board of 80 × 83 mm with 54 parts on 45 nets, routed with 250 tracks and 24 vias.

It is built around the SK6812MINI-E. Its parts include 29 diodes, 10 capacitors, 10 switches, 1 IC and 1 connector. It belongs with the keyboards and input boards of this library.

Main components

1

README

README.md

Macropad

This macropad has 9 keys, an OLED display, a rotary encoder, and 20 individually adressable LEDs for an underglow effect.

Features

  • Two piece PLA case (no screws or heatset inserts necessary!)
  • 128x32 OLED display
  • EC11 rotary encoder
  • 9 keys arranged in a 3x3 matrix
  • 20 SK6812MINI-E indvidually adressable LEDs for underglow effects
  • Supports QMK, KMK, and more

Cad Model

The PCB gets sandwiched in between the main body and the bottom piece. The PCB can be glued using the 4 corners onto the main body or foam or some kind of riser can be placed on the protruding columns on the bottom plate. When the bottom plate is glued to the main body the column will snugly fix the PCB in place. This allows the case to stay slim and compact while still allowing the underglow effect to take place.

cad1.png cad3.png cad2.png

Made in Fusion 360. Make sure the macropad works outside the case before assembling the case since it will be very hard to take it apart.

Schematic + PCB

The PCB was made in KiCad, it incorporates 2 layers, a ground plane, and vias.

schematic.png pcb.png

Firmware

Currently the firmware is designed to use KMK and circuitpython. However in the future I would like to upgrade to QMK due to its gui configuration interface and more advanced features.

BOM

Everyting you need to make this macropad:

PartQuantityOptional
Cherry MX switches9
DSA keycaps9
1N4148 DO-35 diode9
SK6812MINI-E LED20
0.91" 128x32 i2c OLED Display1
EC11 Rotary Encoder1
XIAO RP2040 microcontroller1
PCB1
Case - top1
Case - bottom1
100nf through-hole capacitor10yes

Right now the capacitors were added into the PCB just in case there are any issues with voltage drops due to the amount of LEDs.

Parts

54
QtyValueFootprintReferences
20SK6812MINI-ELED_SMD:LED_SK6812MINI-E_3.2x2.8mm_P1.5mm_ReverseMountD10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25 +4
10100nfCapacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mmC1, C2, C3, C4, C5, C6, C7, C8, C9, C10
91N4148Diode_THT:D_DO-35_SOD27_P7.62mm_HorizontalD1, D2, D3, D4, D5, D6, D7, D8, D9
9SW_PushButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9
1MOUDLE-SEEEDUINO-XIAOcarepackage:XIAO-Generic-Hybrid-14P-2.54-21X17.8MMU2
1OLED_HeaderConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ1
1RotaryEncoder_SwitchRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmSW10

The 51 most common of 54 parts.

Questions

How big is the Macropad PCB?

It measures 80 × 83 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Macropad use?

54 parts, built around the SK6812MINI-E. 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 Macropad KiCad files?

From the ZSmaster1/macropad repository on GitHub, at the commit this page was made from: the board is pcb/macropad.kicad_pcb and its schematic pcb/macropad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Macropad design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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