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2 layers80 × 60 mmHackpad, the printed circuit board in 3D

Cutom keypad for the stardance hackpad challenge

Size
80 × 60 mm
Copper layers
2
Thickness
1.6 mm
Parts
22
Nets
26
Pads
88
Tracks, vias
222, 3
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
12 Sep 2026
Updated
15 Sep 2026

Overview

Hackpad is an open-source printed circuit board by marloweb-dev, from the marloweb-dev/Hackpad repository on GitHub. It is a 2-layer board of 80 × 60 mm with 22 parts on 26 nets, routed with 222 tracks and 3 vias.

Its parts include 12 diodes, 6 switches and 2 ICs. It belongs with the keyboards and input boards of this library.

README

README.md

Hackpad

Cutom keypad for the stardance hackpad challenge

My hackpad has 5 keys, a rotary encoder, a led status bar and an oled display. It uses QMK firmware.

PCB

Here is the pcb I made in Kicad:

image image

CAD design

At first for this case I attempted to learn fusion but due to time constraints I pivoted to tinkercad in order to finish on time. The case itself is made up of a base and a lid. I forgot to export the fancy pcb with all the components so apologies for that.

image image

BOM

For this project I used:

  • 5x Cherry MX Switches
  • 5x DSA Keycaps
  • 6x 1N4148 DO-35 Diodes
  • 6x SK6812 MINI-E LEDs
  • 1x 0.91" 128x32 OLED Display
  • 1x EC11 Rotary Encoder
  • 1x XIAO RP2040
  • 1x Case (2 3d printed parts)

Parts

22
QtyValueFootprintReferences
6DDiode_THT:D_DO-35_SOD27_P7.62mm_HorizontalD2, D3, D4, D5, D6, D12
6~1Custom:SK6812MINI-E_fixedD100, D101, D102, D103, D104, D105
5SW_PushButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW1, SW2, SW3, SW4, SW5
1MOUDLE-SEEEDUINO-XIAO1Custom:XIAO-Generic-Hybrid-14P-2.54-21X17.8MMU1
1RotaryEncoder_Switch1Custom:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmSW6
1~Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalU2

The 20 most common of 22 parts.

Questions

How big is the Hackpad PCB?

It measures 80 × 60 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Hackpad use?

22 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 Hackpad KiCad files?

From the marloweb-dev/Hackpad repository on GitHub, at the commit this page was made from: the board is PCB/hackpad.kicad_pcb and its schematic PCB/hackpad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Hackpad design in my own project?

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

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