2 open source boards using the PCA9545APW, PCA9545BPW, PCA9545CPW
Real designs built with the PCA9545APW, PCA9545BPW, PCA9545CPW, 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.
RP2040/RP2350Starfish
theacodes
100 × 100 mm220 parts4LMIT1.1k
RP2040/RP2350Simple
100 × 100 mm219 parts4LMIT1.1k
The PCA9545APW, PCA9545BPW, PCA9545CPW in open source designs
The gallery holds 2 open source boards using the PCA9545APW, PCA9545BPW, PCA9545CPW from 1 GitHub repository; a typical one measures about 100 × 100 mm and carries around 220 components.
100% use four copper layers or more, and 100% carry an open source license.
The most starred is Starfish by theacodes.
Microcontrollers on boards using the PCA9545APW, PCA9545BPW, PCA9545CPW
PCA9545APW, PCA9545BPW, PCA9545CPW: common questions
Where can I find a PCA9545APW, PCA9545BPW, PCA9545CPW reference design?
Each of the 2 boards on this page is a real design using the PCA9545APW, PCA9545BPW, PCA9545CPW. 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 PCA9545APW, PCA9545BPW, PCA9545CPW use?
Most are built on RP2040/RP2350 (2).
How big is a typical board using the PCA9545APW, PCA9545BPW, PCA9545CPW?
The median is 100 × 100 mm, and 0% are two-layer designs.
What is the most popular open source board using the PCA9545APW, PCA9545BPW, PCA9545CPW?
By GitHub stars, Starfish by theacodes, with 1,143 stars.
Can I simulate one of these boards using the PCA9545APW, PCA9545BPW, PCA9545CPW 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.