2 open source boards using the PCA9539PW,112
Real designs built with the PCA9539PW,112, 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.
Seedsigner hardware dev v1
lightningspore
100 × 100 mm22 parts2LNo license11
Seedsigner luckfox shipit
70 × 70 mm22 parts2LNo license11
The PCA9539PW,112 in open source designs
The gallery holds 2 open source boards using the PCA9539PW,112 from 1 GitHub repository; a typical one measures about 85 × 85 mm and carries around 22 components.
100% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.
The most starred is Seedsigner hardware dev v1 by lightningspore.
PCA9539PW,112: common questions
Where can I find a PCA9539PW,112 reference design?
Each of the 2 boards on this page is a real design using the PCA9539PW,112. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
How big is a typical board using the PCA9539PW,112?
The median is 85 × 85 mm, and 100% are two-layer designs.
What is the most popular open source board using the PCA9539PW,112?
By GitHub stars, Seedsigner hardware dev v1 by lightningspore, with 11 stars.
Can I simulate one of these boards using the PCA9539PW,112 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.