HardLabs

Keyboard

Thunkar·euk·split/pcb/keyboard.kicad_pcb

Keyboard PCB layout, top view — open source RP2040/RP2350 board by Thunkar
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About the Keyboard PCB

Keyboard is an open source RP2040/RP2350 PCB design by Thunkar, published on GitHub. It is a 2-layer board measuring 161.8 × 129.2 mm, with 103 components from 6 distinct parts.

Its main chip is the pro_micro_rp2040, from the RP2040/RP2350 family. By type, the board carries 33 diodes, 3 connectors and 1 IC.

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

From the project

Extremely unnecessary keyboard

A split ergonomic keyboard project with customizable accessories and per-key RGB lighting.

- Split design for ergonomic typing - Hot-swappable MX switches - Per-key RGB lighting (SK6812 mini-e LEDs) - RP2040-based controller - Optional accessories: - OLED screen - Rotary encoder - Analog joystick - Potentiometer - Tenting support

- Bill of Materials (BOM) - Complete list of components needed - Ordering PCBs - Guide for ordering the printed circuit boards - Assembly Guide - Step-by-step assembly instructions

Keyboard, from the project README
From the project README

Keyboard bill of materials (BOM)

103 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
~
U1
1
TRRS
J1
2
IO
J2, J3
33
D
D_0, D_1, D_2, D_3, D_4, D_5, D_6, D_7 +25
33
KEYSW
K_0, K_1, K_2, K_3, K_4, K_5, K_6, K_7 +25
33
WS2812B
D1, D2, D3, D4, D5, D6, D7, D8 +25

Keyboard design files

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

Keyboard: common questions

What microcontroller does the Keyboard use?

The Keyboard is built around the pro_micro_rp2040, from the RP2040/RP2350 family.

How big is the Keyboard PCB?

The Keyboard measures 161.8 × 129.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyboard?

103 components, from 6 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 Keyboard design files?

From the Thunkar/euk 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 Keyboard design in my own project?

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

Can I test firmware for the Keyboard 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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