HardLabs

Crab

davidphilipbarr·36keys·36Keys/crab/crab.kicad_pcb

Crab PCB layout, top view — open source board by davidphilipbarr

About the Crab PCB

Crab is an open source PCB design by davidphilipbarr, published on GitHub. It is a 2-layer board measuring 109.7 × 81.3 mm, with 38 components from 5 distinct parts.

Other key parts include the ProMicro. By type, the board carries 18 diodes, 17 switches, 2 connectors and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

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Main components on the Crab

ProMicro

Crab bill of materials (BOM)

38 components, 5 distinct parts.

QtyPartRefs
1
ProMicro
U1
1
MJ-4PP-9
J1
1
OLED
J2
17
SW_PUSH
SW2, SW3, SW4, SW5, SW6, SW8, SW9, SW10 +9
18
D
D2, D3, D4, D5, D6, D8, D9, D10 +10

Crab design files

The KiCad project lives in the davidphilipbarr/36keys repository on GitHub; these links point at the commit this page was built from.

Crab: common questions

How big is the Crab PCB?

The Crab measures 109.7 × 81.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Crab?

38 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the Crab design files?

From the davidphilipbarr/36keys repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Crab design in my own project?

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

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