HardLabs

Ataraxia

shreaypatel·Ataraxia·PCB/sourceFiles/splitKey.kicad_pcb

Ataraxia PCB layout, top view — open source Nordic nRF board by shreaypatel

About the Ataraxia PCB

Ataraxia is an open source Nordic nRF PCB design by shreaypatel, published on GitHub. It is a 2-layer board measuring 290.8 × 123.8 mm, with 106 components from 3 distinct parts.

Its main chip is the XIAO-nRF52840-SMD, from the Nordic nRF family. By type, the board carries 52 switches, 52 diodes and 2 ICs.

It belongs with the keyboards, iot & wireless and power & battery designs in this gallery.

From the project

Custom 50% ergonomic wireless split keyboard

This project was designed to create an open source, minimalist workspace that promotes ergonomic health withouting compromising functionality. Beyond the physical utility, it serves as a comprehensive hardware engineering exercise. Building this keyboard helped me learn engineering design, CAD modeling, PCB routing, soldering, and embedded firmware compilation. Check out the web app to learn touch typing on this split keyboard layout here: https://ataraxiatype.netlify.app/

Ataraxia, from the project README
From the project README

Main components on the Ataraxia

XIAO-nRF52840-SMD

Ataraxia bill of materials (BOM)

106 components, 3 distinct parts.

QtyPartRefs
2
XIAO-nRF52840-SMD
U1, U2
52
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +44
52
D
D1, D2, D3, D4, D5, D6, D7, D8 +44

Ataraxia design files

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

Ataraxia: common questions

What microcontroller does the Ataraxia use?

The Ataraxia is built around the XIAO-nRF52840-SMD, from the Nordic nRF family.

How big is the Ataraxia PCB?

The Ataraxia measures 290.8 × 123.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ataraxia?

106 components, from 3 distinct parts. The full bill of materials is listed on this page.

Where can I download the Ataraxia design files?

From the shreaypatel/Ataraxia repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Ataraxia design in my own project?

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

Can I test firmware for the Ataraxia without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Nordic nRF firmware against it before you order a PCB.

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