HardLabs

Choc keypad

jamesmunns·brick-mount·boards/choc-keypad/choc-keypad.kicad_pcb

Choc keypad PCB layout, top view — open source board by jamesmunns

About the Choc keypad PCB

Choc keypad is an open source PCB design by jamesmunns, published on GitHub. It is a 2-layer board measuring 95.5 × 127.5 mm, with 147 components from 9 distinct parts.

By type, the board carries 67 diodes, 43 capacitors, 25 switches, 8 connectors and 4 resistors.

It belongs with the keyboards designs in this gallery.

From the project

Put your circuits on your plastic bricks of choice

Boards designed to be compatible with LEGO and other plastic building blocks.

There are KiCAD footprints for a variety of different brick arrangements in the parts folder. I've also included a number of personal projects using these footprints in the boards/ folder.

The contents of the parts/brick-49id-60od.pretty/ folder are licensed under a CC0 license.

Choc keypad, from the project README
From the project README

Choc keypad bill of materials (BOM)

147 components, 9 distinct parts.

QtyPartRefs
5
Conn_01x08
J1, J2, J3, J4, J5
1
Conn_01x02
J6
1
Conn_02x06_Odd_Even
J7
1
Conn_01x06
J8
25
Choc
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +17
24
D_Schottky
D1, D2, D3, D4, D5, D6, D7, D8 +16
43
TC2020-RGB
D25, D26, D27, D28, D29, D30, D31, D32 +35
43
1uF
C1, C2, C3, C4, C5, C6, C7, C8 +35
4
10K
R1, R2, R3, R4

Choc keypad design files

The KiCad project lives in the jamesmunns/brick-mount repository on GitHub; these links point at the commit this page was built from.

Choc keypad: common questions

How big is the Choc keypad PCB?

The Choc keypad measures 95.5 × 127.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Choc keypad?

147 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Choc keypad design files?

From the jamesmunns/brick-mount repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Choc keypad design in my own project?

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

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