4 open source boards using the PCA8561AHN/AY

Real designs built with the PCA8561AHN/AY, 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.

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The PCA8561AHN/AY in open source designs

The gallery holds 4 open source boards using the PCA8561AHN/AY from 2 GitHub repositories; a typical one measures about 32 × 45.5 mm and carries around 48 components.

50% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.

The most starred is SparkFun Thing Plus ESP32-S3 by Valar-Systems.

Parts used alongside the PCA8561AHN/AY

Microcontrollers on boards using the PCA8561AHN/AY

What boards using the PCA8561AHN/AY are built for

PCA8561AHN/AY: common questions

Where can I find a PCA8561AHN/AY reference design?

Each of the 4 boards on this page is a real design using the PCA8561AHN/AY. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.

What parts are used alongside the PCA8561AHN/AY?

The LMP7731MF/NOPB, MAX9814ETD+T, NCP163ASN330T1G and STM32F301K8U6 appear in the most repositories here.

Which microcontrollers do boards using the PCA8561AHN/AY use?

Most are built on ESP32 (2) and STM32 (2).

How big is a typical board using the PCA8561AHN/AY?

The median is 32 × 45.5 mm, and 50% are two-layer designs.

What is the most popular open source board using the PCA8561AHN/AY?

By GitHub stars, SparkFun Thing Plus ESP32-S3 by Valar-Systems, with 112 stars.

Can I simulate one of these boards using the PCA8561AHN/AY 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.