3 open source boards using the PCA9555DB
Real designs built with the PCA9555DB, 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/RP2350RP2040 DSP - PCM3060
DMME-NL
166.2 × 92.6 mm105 parts2LGPL-3.071
Raspberry PiOsdev hat
alxhub
65 × 56.5 mm60 parts2LMIT0
RP2040/RP2350RP2040 DSP Modular
166.2 × 92.6 mm100 parts2LGPL-3.071
The PCA9555DB in open source designs
The gallery holds 3 open source boards using the PCA9555DB from 2 GitHub repositories; a typical one measures about 166.2 × 92.6 mm and carries around 100 components.
100% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is RP2040 DSP - PCM3060 by DMME-NL.
Microcontrollers on boards using the PCA9555DB
What boards using the PCA9555DB are built for
PCA9555DB: common questions
Where can I find a PCA9555DB reference design?
Each of the 3 boards on this page is a real design using the PCA9555DB. 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 PCA9555DB use?
Most are built on RP2040/RP2350 (2) and Raspberry Pi (1).
How big is a typical board using the PCA9555DB?
The median is 166.2 × 92.6 mm, and 100% are two-layer designs.
What is the most popular open source board using the PCA9555DB?
By GitHub stars, RP2040 DSP - PCM3060 by DMME-NL, with 71 stars.
Can I simulate one of these boards using the PCA9555DB 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.