HardLabs

Cad pad kaito

kaitohusky·cad_pad_kaito·kaito_CADpad/PCB/dev.kicad_pcb

Cad pad kaito PCB layout, top view — open source RP2040/RP2350 board by kaitohusky

About the Cad pad kaito PCB

Cad pad kaito is an open source RP2040/RP2350 PCB design by kaitohusky, published on GitHub. It is a 2-layer board measuring 85.2 × 85.2 mm, with 48 components from 6 distinct parts.

Its main chip is the XIAO-RP2040-DIP, from the RP2040/RP2350 family. By type, the board carries 30 diodes, 15 switches, 1 IC, 1 capacitor and 1 resistor.

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

From the project

keyboard with cad shortcuts

A compact 15-key USB shortcut keyboard designed to trigger shortcuts in CAD software. Built around a Seeed XIAO RP2040 (DIP version) using a 3×5 diode-protected key matrix (anti-ghosting).

This repo contains the full hardware + firmware stack: schematic, PCB layout, assembly references, and firmware that sends USB key events to the computer.

- PCB/: KiCad project files (schematic + PCB layout) - Firmware/: firmware source code - docs/: screenshots used in this README

Cad pad kaito, from the project README
From the project README

Main components on the Cad pad kaito

XIAO-RP2040-DIP

Cad pad kaito bill of materials (BOM)

48 components, 6 distinct parts.

QtyPartRefs
1
XIAO-RP2040-DIP
U1
15
SW_Push
SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18 +7
15
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +7
15
SK6812
D16, D17, D18, D19, D20, D21, D22, D23 +7
1
C_Polarized
C1
1
R
R1

Cad pad kaito design files

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

Cad pad kaito: common questions

What microcontroller does the Cad pad kaito use?

The Cad pad kaito is built around the XIAO-RP2040-DIP, from the RP2040/RP2350 family.

How big is the Cad pad kaito PCB?

The Cad pad kaito measures 85.2 × 85.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Cad pad kaito?

48 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the Cad pad kaito design files?

From the kaitohusky/cad_pad_kaito repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Cad pad kaito design in my own project?

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

Can I test firmware for the Cad pad kaito 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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