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Wren numpad

oliviahanley·wren-keyboard·PCBs/legacy/wren-numpad/wren-numpad.kicad_pcb

Wren numpad PCB layout, top view — open source board by oliviahanley

About the Wren numpad PCB

Wren numpad is an open source PCB design by oliviahanley, published on GitHub under the MIT license. It is a 2-layer board measuring 227.7 × 112.8 mm, with 95 components from 8 distinct parts.

Other key parts include the Elite-C. By type, the board carries 45 diodes, 2 resistors, 1 IC, 1 connector and 1 switch.

It belongs with the keyboards designs in this gallery.

From the project

A split ergonomic keyboard with options for numpad, nav cluster, and more.

My primary keyboard for the last few years has been Prime Keyboards' primeo, before which I used a handwired Planck. On both I made pretty heavy use of the numpad. I grew to appreciate the prime\o's physical one, though, mostly because I spend a lot of time in Excel at my day job and like using the mouse and numpad simultaneously. I've been wanting to switch to ergo for a while, but I was annoyed by the thought of having to use a separate numpad to recreate that experience. This project was an attempt to solve that problem.

Wren numpad, from the project README
From the project README

Main components on the Wren numpad

Elite-C

Wren numpad bill of materials (BOM)

95 components, 8 distinct parts.

QtyPartRefs
1
Elite-C
U1
1
TRRS_Jack
J1
1
Rotary_Encoder_Switch
ENC1
44
MX-NoLED
MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +36
1
Reset
SW0
45
D_Small
D1, D2, D3, D4, D5, D6, D7, D8 +37
1
2.2kOhms
R1
1
10kOhms
R2

Wren numpad design files

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

Wren numpad: common questions

How big is the Wren numpad PCB?

The Wren numpad measures 227.7 × 112.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Wren numpad?

95 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the Wren numpad design files?

From the oliviahanley/wren-keyboard repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Wren numpad design in my own project?

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

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