3 open source boards using the PCA9544APW

Real designs built with the PCA9544APW, 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 PCA9544APW in open source designs

The gallery holds 3 open source boards using the PCA9544APW from 2 GitHub repositories; a typical one measures about 239.4 × 165.7 mm and carries around 190 components.

67% use four copper layers or more, and 67% carry an open source license.

The most starred is MAXI030 by aslak3.

Microcontrollers on boards using the PCA9544APW

What boards using the PCA9544APW are built for

PCA9544APW: common questions

Where can I find a PCA9544APW reference design?

Each of the 3 boards on this page is a real design using the PCA9544APW. 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 PCA9544APW use?

Most are built on STM32 (1).

How big is a typical board using the PCA9544APW?

The median is 239.4 × 165.7 mm, and 33% are two-layer designs.

What is the most popular open source board using the PCA9544APW?

By GitHub stars, MAXI030 by aslak3, with 38 stars.

Can I simulate one of these boards using the PCA9544APW 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