3 open source boards using the CAT24C256WI-GT3

Real designs built with the CAT24C256WI-GT3, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.

The CAT24C256WI-GT3 in open source designs

The gallery holds 3 open source boards using the CAT24C256WI-GT3 from 3 GitHub repositories; a typical one measures about 150.1 × 123.4 mm and carries around 131 components.

67% are two-layer designs, the rest use four layers or more, and 67% carry an open source license.

The most starred is Ultimate Hacking Keyboard - Right Main Board by UltimateHackingKeyboard.

Parts used alongside the CAT24C256WI-GT3

Microcontrollers on boards using the CAT24C256WI-GT3

What boards using the CAT24C256WI-GT3 are built for

CAT24C256WI-GT3: common questions

Where can I find a CAT24C256WI-GT3 reference design?

Each of the 3 boards on this page is a real design using the CAT24C256WI-GT3. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.

Which microcontrollers do boards using the CAT24C256WI-GT3 use?

Most are built on NXP (2).

How big is a typical board using the CAT24C256WI-GT3?

The median is 150.1 × 123.4 mm, and 67% are two-layer designs.

What is the most popular open source board using the CAT24C256WI-GT3?

By GitHub stars, Ultimate Hacking Keyboard - Right Main Board by UltimateHackingKeyboard, with 177 stars.

Can I simulate one of these boards using the CAT24C256WI-GT3 before building it?

Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.

Browse boards by part