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2 layers92.5 × 42 mmHackpad, the printed circuit board in 3D
Size
92.5 × 42 mm
Copper layers
2
Thickness
1.6 mm
Parts
35
Nets
39
Pads
159
Tracks, vias
384, 42
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
17 Jul 2025
Updated
19 Aug 2025

Overview

Hackpad is an open-source printed circuit board by The-Wolfson, from the The-Wolfson/Hackpad repository on GitHub. It is a 2-layer board of 92.5 × 42 mm with 35 parts on 39 nets, routed with 384 tracks and 42 vias.

It is built around the SK6812MINI-E. Its parts include 25 diodes, 7 switches and 1 IC. It belongs with the RP2040 boards of this library.

Main components

1

README

README.md

MIDI (Pro) Pad

A hackpad built for Hacklub's YSWS that sends MIDI Control Messages to your DAW of choice. It features 2 rotary encoders, 9 switches, and 16 addressable LEDs.

Assembled Case PCB Schematic

BOM

PartQuantity
XIAO RP20401
EC11 Rotary Encoder2
SK6812 MINI-E16
MX-Style Switch7
Through-hole 1N4148 Diode9
M3x16mm Screw4
M3x5mx4mm Heatset Insert4

Parts

35
QtyValueFootprintReferences
16SK6812MINILED_SMD:SK6812-MINI-ELED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8, LED9, LED10, LED11, LED12, LED13, LED14, LED15, LED16
9DDiode_THT:D_DO-35_SOD27_P7.62mm_HorizontalD1, D2, D3, D4, D5, D6, D7, D8, D9
7SW_Push_45degButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW1, SW2, SW3, SW4, SW5, SW7, SW8
2RotaryEncoder_Switch_MPRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmRE1, RE2
1XIAO-RP2040-DIPSeeed Studio XIAO Series Library:XIAO-RP2040-DIPU1

Questions

How big is the Hackpad PCB?

It measures 92.5 × 42 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Hackpad use?

35 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 Hackpad KiCad files?

From the The-Wolfson/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 The-Wolfson before reusing the design.

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