1 open source board using the PCA9545

Real designs built with the PCA9545, 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 PCA9545 in open source designs

The gallery holds 1 open source boards using the PCA9545 from 1 GitHub repository; a typical one measures about 180 × 140 mm and carries around 382 components.

100% use four copper layers or more, and 0% carry an open source license.

The most starred is OpenPNP mobo by jaytektas.

Microcontrollers on boards using the PCA9545

What boards using the PCA9545 are built for

PCA9545: common questions

Where can I find a PCA9545 reference design?

Each of the 1 boards on this page is a real design using the PCA9545. 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 PCA9545 use?

Most are built on STM32 (1).

How big is a typical board using the PCA9545?

The median is 180 × 140 mm, and 0% are two-layer designs.

What is the most popular open source board using the PCA9545?

By GitHub stars, OpenPNP mobo by jaytektas, with 0 stars.

Can I simulate one of these boards using the PCA9545 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.

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