2 open source boards using the PCA9535C
Real designs built with the PCA9535C, 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.
AVR/ArduinoBackplane
PurkkaKoodari
200 × 100 mm96 parts2LMIT2
ESP32Chess board
shuki25
317.5 × 228.6 mm461 parts4LNo license0
The PCA9535C in open source designs
The gallery holds 2 open source boards using the PCA9535C from 2 GitHub repositories; a typical one measures about 258.8 × 164.3 mm and carries around 279 components.
50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Backplane by PurkkaKoodari.
Microcontrollers on boards using the PCA9535C
What boards using the PCA9535C are built for
PCA9535C: common questions
Where can I find a PCA9535C reference design?
Each of the 2 boards on this page is a real design using the PCA9535C. 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 PCA9535C use?
Most are built on AVR/Arduino (1) and ESP32 (1).
How big is a typical board using the PCA9535C?
The median is 258.8 × 164.3 mm, and 50% are two-layer designs.
What is the most popular open source board using the PCA9535C?
By GitHub stars, Backplane by PurkkaKoodari, with 2 stars.
Can I simulate one of these boards using the PCA9535C 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.