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Keyboard mini

Thunkar·euk·mini/pcb/keyboard-mini.kicad_pcb

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

About the Keyboard mini PCB

Keyboard mini is an open source RP2040/RP2350 PCB design by Thunkar, published on GitHub. It is a 2-layer board measuring 96.9 × 67.1 mm, with 29 components from 5 distinct parts.

Its main chip is the pro_micro_rp2040, from the RP2040/RP2350 family. By type, the board carries 9 diodes, 1 IC and 1 connector.

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 mini, from the project README
From the project README

Keyboard mini bill of materials (BOM)

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

QtyPartRefs
1
~
U1
1
IO
J2
9
D
D_1, D_2, D_3, D_4, D_5, D_6, D_7, D_8 +1
9
KEYSW
K_1, K_2, K_3, K_4, K_5, K_6, K_7, K_8 +1
9
WS2812B
D1, D2, D3, D4, D5, D6, D7, D8 +1

Keyboard mini 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 mini: common questions

What microcontroller does the Keyboard mini use?

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

How big is the Keyboard mini PCB?

The Keyboard mini measures 96.9 × 67.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyboard mini?

29 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 Keyboard mini 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 mini 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 mini 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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