Mini48-keyboard v2 mx choc
About the Mini48-keyboard v2 mx choc PCB
Mini48-keyboard v2 mx choc is an open source RP2040/RP2350 PCB design by kenyahiro, published on GitHub under the MIT license. It is a 2-layer board measuring 232 × 98 mm, with 175 components from 14 distinct parts.
Its main chip is the Pico, from the RP2040/RP2350 family. By type, the board carries 102 switches, 52 diodes, 9 resistors, 5 capacitors, 3 transistors and 3 connectors.
It belongs with the keyboards designs in this gallery.
From the project
この他に, kailh choc V1キースイッチ、 choc V1用キーキャップが必要です。 また、 基板を固定するためM2の支柱とネジを使います。
この他に, kailh choc V1キースイッチ、 choc V1用キーキャップが必要です。 また、 基板を固定するためM2の支柱とネジを使います。
書き込み後、 Thonny等でCircuitPythonが動いていることを確認します。
直付けの場合、キーボード裏の厚みを薄くできます。しかし、マイコンボードが故障したときに交換が難しくなります。
ピンソケットを使用した場合、キーボード裏の厚みがピンソケット分増加します。マイコンボードの交換は容易です。
マイコンボードに 細ピンヘッダ(AE-RP2040付属) または 基板用リードフレーム をハンダ付けします。
細ピンヘッダをハンダ付けする場合、 ブレッドボードを使うとハンダ付けしやすいです。
リードフレームをハンダ付けする場合、 垂直になるようにハンダ付けします。まず1ピンだけ仮止めして、角度を調整します。 垂直になったら、残りのピンをハンダ付けします。
Main components on the Mini48-keyboard v2 mx choc
Mini48-keyboard v2 mx choc bill of materials (BOM)
175 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Pico | pico_no_dbg_th_p0.85 | U2 |
| 3 | BSS138 | SOT-23 | Q1, Q2, Q3 |
| 1 | Conn_01x08 | JST_PH_B8B-PH-K_1x08_P2.00mm_Vertical | J1 |
| 2 | Conn_01x04 | JST_PH_S4B-PH-K_1x04_P2.00mm_Horizontal | J2, J3 |
| 51 | SW_Push | SW_Hotswap_Kailh_Choc_V1V2_no_mp | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +43 |
| 51 | SW_Push | SW_Hotswap_Kailh_MX | SW49, SW50, SW51, SW52, SW53, SW54, SW55, SW56 +43 |
| 48 | 1N4148W | D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8 +40 |
| 4 | WS2812B | LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D49, D50, D51, D52 |
| 1 | [10u] | C_0603_1608Metric | C1 |
| 4 | 0.1u | C_0603_1608Metric | C2, C3, C4, C5 |
| 6 | 10k | R_0603_1608Metric | R1, R2, R3, R4, R5, R6 |
| 1 | [100k] | R_0603_1608Metric | R7 |
| 1 | R | R_0603_1608Metric | R8 |
| 1 | 0 | R_0603_1608Metric | R9 |
Mini48-keyboard v2 mx choc design files
The KiCad project lives in the kenyahiro/mini48-keyboard repository on GitHub; these links point at the commit this page was built from.
Mini48-keyboard v2 mx choc: common questions
What microcontroller does the Mini48-keyboard v2 mx choc use?
The Mini48-keyboard v2 mx choc is built around the Pico, from the RP2040/RP2350 family.
How big is the Mini48-keyboard v2 mx choc PCB?
The Mini48-keyboard v2 mx choc measures 232 × 98 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mini48-keyboard v2 mx choc?
175 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mini48-keyboard v2 mx choc design files?
From the kenyahiro/mini48-keyboard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mini48-keyboard v2 mx choc design in my own project?
Yes, under the terms of its MIT license, which kenyahiro chose for the repository.
Can I test firmware for the Mini48-keyboard v2 mx choc 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.
More boards in mini48-keyboard
Similar boards
RP2040/RP2350Open Book Abridged Edition
joeycastillo
85 × 115 mm29 parts2LCC-BY-SA-4.08.1k
RP2040/RP2350Corne
foostan
277.2 × 107.5 mm164 parts2LCC-BY-4.07.7k
RP2040/RP2350Corne
277.2 × 107.5 mm164 parts2LCC-BY-4.07.7k
RP2040/RP2350LogicAnalyzer
gusmanb
57 × 55.2 mm6 parts2LGPL-3.05.0k
RP2040/RP2350Jitx design
55.5 × 65 mm26 parts4LGPL-3.05.0k
RP2040/RP2350Pro V2
kata0510
290.1 × 130 mm270 parts2LMIT2.3k