HardLabs

KiPad

penguinissus·KiPad·pcb/KiPad.kicad_pcb

KiPad PCB layout, top view — open source RP2040/RP2350 board by penguinissus

About the KiPad PCB

KiPad is an open source RP2040/RP2350 PCB design by penguinissus, published on GitHub. It is a 2-layer board measuring 100 × 85 mm, with 25 components from 3 distinct parts.

Its main chip is the XIAO-RP2040-DIP, from the RP2040/RP2350 family. By type, the board carries 12 switches, 12 diodes and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

kicad hackpad

Firmware: 1. go to circuitpython.org/downloads 2. download circuitpython for XIAO RP2040 3. plug in keyboard to laptop and make sure to use a data transmitting cable 4. open up the pico folder in your computer's directory 5. replace the contents of code.py in the XIAO RP2040 folder with the one in this repo

KiPad, from the project README
From the project README

Main components on the KiPad

XIAO-RP2040-DIP

KiPad bill of materials (BOM)

25 components, 3 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XIAO-RP2040-DIP
U1
12
SW_Push_45deg
SW1 - ESC, SW2 - A, SW3 - X, SW4 - CTRL+S, SW5 - W, SW6 - V, SW7 - DELETE, SW8 - CTRL+L +4
12
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +4

KiPad design files

The KiCad project lives in the penguinissus/KiPad repository on GitHub; these links point at the commit this page was built from.

KiPad: common questions

What microcontroller does the KiPad use?

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

How big is the KiPad PCB?

The KiPad measures 100 × 85 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the KiPad?

25 components, from 3 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 KiPad design files?

From the penguinissus/KiPad 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 KiPad design in my own project?

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

Can I test firmware for the KiPad 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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