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2 layers133.9 × 99 mmHackpad, the printed circuit board in 3D

BOM: 8x Cherry MX Switches 2x SK6812 MINI Leds 1x XIAO RP2040 8x Blank DSA Keycaps 4x M3x16 Bolt 1x EC11 Rotary encoder 1x 0.91 inch OLED displays

Size
133.9 × 99 mm
Copper layers
2
Thickness
1.6 mm
Parts
23
Nets
25
Pads
105
Tracks, vias
149, 2
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
7 Jul 2025
Updated
29 Mar 2026

Overview

Hackpad is an open-source printed circuit board by Neya-M, from the Neya-M/Hackpad repository on GitHub. It is a 2-layer board of 133.9 × 99 mm with 23 parts on 25 nets, routed with 149 tracks and 2 vias.

It is built around the SK6812MINI-E. Its parts include 11 diodes, 9 switches, 1 IC and 1 connector. It belongs with the RP2040 boards of this library.

Main components

1

README

README.md

Hackpad

FINISHED IT, DEMO HERE :D

https://github.com/user-attachments/assets/ae1be2d1-e361-4396-a303-68cf132932a8

image This is my Hackpad! It has 8 buttons, 1 rotary encoder, 2 RGBs, and an OLED screen. I made it to control music and type emoticons :)

BOM: 8x Cherry MX Switches 2x SK6812 MINI Leds 1x XIAO RP2040 8x Blank DSA Keycaps 4x M3x16 Bolt 1x EC11 Rotary encoder 1x 0.91 inch OLED displays

Case

image

Schematic

image

PCB

image

3D View

image image

Parts

23
QtyValueFootprintReferences
91N4148Diode_THT:D_DO-35_SOD27_P7.62mm_HorizontalD3, D4, D5, D6, D7, D8, D9, D10, D11
8SW_PushButton_Switch_Keyboard:SW_Cherry_MX_1.00u_PCBSW1, SW2, SW3, SW4, SW5, SW6, SW7, SW9
2SK6812MINILED_SMD:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mmD1, D2
1Conn_01x04Display:SSD1306-0.91-OLED-4pin-128x32J1
1LOGOLOGOG***
1RotaryEncoder_SwitchRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmSW11
1XIAO-RP2040-DIPModule:XIAO-RP2040-DIPU1

Questions

How big is the Hackpad PCB?

It measures 133.9 × 99 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Hackpad use?

23 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 Neya-M/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 Neya-M before reusing the design.

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