HardLabs

Electronics

hjosugi·electronics·hardware/split-keyboard/split-keyboard.kicad_sch

This repository ships a schematic but no board layout.

About the Electronics PCB

Electronics is an open source RP2040/RP2350 PCB design by hjosugi, published on GitHub under the MIT license. It is a board, with 85 components from 7 distinct parts.

Its main chip is the RP2040-Zero GPIO0..GPIO11, from the RP2040/RP2350 family. Other key parts include the TPD4E05U06DQA. By type, the board carries 36 switches, 36 diodes, 6 resistors, 4 ICs and 3 connectors.

It belongs with the keyboards designs in this gallery.

From the project

分割キーボードのホットプラグ安全設計・OSS回路シミュレーション・NotebookLM向け日本語資料

split-keyboard.kicadsch`は、初号機36キーのmatrixと8P8C保護回路を確認するKiCad 10参照回路です。 PCBはまだなく、このディレクトリだけで発注できる状態ではありません。

回路の正本となる反復構造は../generateschematic.pyにあり、 36キーのIDと配置元はdocs/layout/36-key-choc-v1.layout.json`です。

KiCad 10標準symbol libraryが見える環境で、任意のPython仮想環境を使います。

生成器は開発用であり、CIはネットワークからPython packageを取得しません。CIではchecked-in回路図に対して KiCad ERCとXML netlist構造検査を実行します。生成後は差分を確認し、ERC、negative test、文書の割当表を 同じcommitで更新してください。

Main components on the Electronics

TPD4E05U06DQA

Electronics bill of materials (BOM)

85 components, 7 distinct parts.

QtyPartRefs
4
TPD4E05U06DQA
U1, U2, U3, U4
1
8P8C LEFT - SPLIT ONLY / NO LAN
J1
1
8P8C RIGHT - SPLIT ONLY / NO LAN
J2
1
RP2040-Zero GPIO0..GPIO11
J3
36
KEY
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +28
36
1N4148W-7-F
1N4148W
D1, D2, D3, D4, D5, D6, D7, D8 +28
6
ERJ3EKF4700V
470R
R1, R2, R3, R4, R5, R6

Electronics design files

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

Electronics: common questions

What microcontroller does the Electronics use?

The Electronics is built around the RP2040-Zero GPIO0..GPIO11, from the RP2040/RP2350 family.

How many components are on the Electronics?

85 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the Electronics design files?

From the hjosugi/electronics repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Electronics design in my own project?

Yes, under the terms of its MIT license, which hjosugi chose for the repository.

Can I test firmware for the Electronics 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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