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Wrist support

girishji·optical-keyboard-mx-old·wrist-support/wrist-support.kicad_pcb

Wrist support PCB layout, top view — open source board by girishji
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About the Wrist support PCB

Wrist support is an open source PCB design by girishji, published on GitHub under the MIT license. It is a 2-layer board measuring 90.5 × 59 mm, with 4 components from 1 distinct parts.

It belongs with the keyboards designs in this gallery.

From the project

Optical keyboard PCB based on Gateron MX optical switches (KiCad project)

Optical keyboard PCB based on Gateron MX optical switches (KiCad project).

Keyboard matrix uses column-to-row scanning approach. The IR (infra-red) led's in each column is connected to a GPIO pin configured as output. A column is powered by setting the pin HIGH. Each row is connected to a GPIO pin configured as input so that voltage drop across the load register of PT (Phototransistor) can be read.

Wrist support, from the project README
From the project README

Wrist support bill of materials (BOM)

4 components, 1 distinct parts.

QtyPartRefs
4
MountingHoleSprt
HS1, HS2, HS3, HS4

Wrist support design files

The KiCad project lives in the girishji/optical-keyboard-mx-old repository on GitHub; these links point at the commit this page was built from.

Wrist support: common questions

How big is the Wrist support PCB?

The Wrist support measures 90.5 × 59 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Wrist support?

4 components, from 1 distinct parts. The full bill of materials is listed on this page.

Where can I download the Wrist support design files?

From the girishji/optical-keyboard-mx-old repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Wrist support design in my own project?

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

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