HardLabs

Jolomolokolos-HackPad

Jolomolokolo·Jolomolokolos-HackPad·PCB/HackPad.kicad_pcb

Jolomolokolos-HackPad PCB layout, top view — open source RP2040/RP2350 board by Jolomolokolo

About the Jolomolokolos-HackPad PCB

Jolomolokolos-HackPad is an open source RP2040/RP2350 PCB design by Jolomolokolo, published on GitHub. It is a 2-layer board measuring 83.5 × 83.5 mm, with 49 components from 4 distinct parts.

Its main chip is the XIAO-RP2040-DIP, from the RP2040/RP2350 family. By type, the board carries 32 diodes, 16 switches and 1 IC.

It belongs with the keyboards and displays & leds designs in this gallery.

From the project

This is my first ever made HackPad for "Highway", a project by Hack Club!

This is my first ever HackPad for "Highway", a project by Hack Club!

This project is a custom-built 4x4 mechanical keypad featuring MX switches, per-key RGB lighting with SK6812-E Mini LEDs, and powered by a Seeed XIAO RP2040 running KMK firmware. It's designed to be compact, programmable, and visually striking—perfect for learning firmware development and hardware design.

Jolomolokolos-HackPad, from the project README
From the project README

Main components on the Jolomolokolos-HackPad

XIAO-RP2040-DIP

Jolomolokolos-HackPad bill of materials (BOM)

49 components, 4 distinct parts.

QtyPartRefs
1
XIAO-RP2040-DIP
U1
16
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +8
16
SK6812MINI
D1, D2, D3, D4, D5, D6, D7, D8 +8
16
1N4148
D17, D18, D19, D20, D21, D22, D23, D24 +8

Jolomolokolos-HackPad design files

The KiCad project lives in the Jolomolokolo/Jolomolokolos-HackPad repository on GitHub; these links point at the commit this page was built from.

Jolomolokolos-HackPad: common questions

What microcontroller does the Jolomolokolos-HackPad use?

The Jolomolokolos-HackPad is built around the XIAO-RP2040-DIP, from the RP2040/RP2350 family.

How big is the Jolomolokolos-HackPad PCB?

The Jolomolokolos-HackPad measures 83.5 × 83.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Jolomolokolos-HackPad?

49 components, from 4 distinct parts. The full bill of materials is listed on this page.

Where can I download the Jolomolokolos-HackPad design files?

From the Jolomolokolo/Jolomolokolos-HackPad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Jolomolokolos-HackPad design in my own project?

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

Can I test firmware for the Jolomolokolos-HackPad 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.

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