Hackpad v5

jameswwilkes·hackpad-v5·PCB/hackpad-v5.kicad_pcb

About the Hackpad v5 PCB

Hackpad v5 is an open source RP2040/RP2350 PCB design by jameswwilkes, published on GitHub. It is a 2-layer board measuring 101.6 × 99.8 mm, with 34 components from 5 distinct parts.

Its main chip is the Seeed Studio XIAO RP2040, from the RP2040/RP2350 family. By type, the board carries 20 diodes, 13 switches and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

My macropad for 3D Modelling with 12 keys in a 4x4 cross, 1 rotary encoder and a LED backlight.

This is my hackpad in Fusion360 showing how it's assembled.

This is my Case Model I made in Fusion360:

Here's my PCB. It was made in KiCad. The silkscreen was imported from separate vectors.

Hackpad v5, from the project README — From the project README

Main components on the Hackpad v5

Seeed Studio XIAO RP2040

Hackpad v5 bill of materials (BOM)

34 components, 5 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	Seeed Studio XIAO RP2040	XIAO-Generic-Hybrid-14P-2.54-21X17.8MM	U1
12	SW_Push_45deg	SW_Cherry_MX_1.00u_PCB	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +4
1	RotaryEncoder_Switch	RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm	SW13
12	1N4148	D_DO-35_SOD27_P7.62mm_Horizontal	D1, D2, D3, D4, D5, D6, D7, D8 +4
8	SK6812MINI-E	SK6812MINI-E_fixed	D14, D15, D16, D17, D18, D19, D20, D21

Hackpad v5 design files

The KiCad project lives in the jameswwilkes/hackpad-v5 repository on GitHub; these links point at the commit this page was built from.

Hackpad v5: common questions

What microcontroller does the Hackpad v5 use?

The Hackpad v5 is built around the Seeed Studio XIAO RP2040, from the RP2040/RP2350 family.

How big is the Hackpad v5 PCB?

The Hackpad v5 measures 101.6 × 99.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hackpad v5?

34 components, from 5 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Hackpad v5 design files?

From the jameswwilkes/hackpad-v5 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Hackpad v5 design in my own project?

The repository has no license, so all rights stay with jameswwilkes. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Hackpad v5 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.