2 open source boards using the PCF8574ATS
Real designs built with the PCF8574ATS, 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/RP2350Vaio re
CRImier
75 × 65 mm274 parts4LGPL-3.0253
ESP32Mni drone
harris8099
102.4 × 102.4 mm72 parts2LNo license0
The PCF8574ATS in open source designs
The gallery holds 2 open source boards using the PCF8574ATS from 2 GitHub repositories; a typical one measures about 88.7 × 83.7 mm and carries around 173 components.
50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Vaio re by CRImier.
Microcontrollers on boards using the PCF8574ATS
What boards using the PCF8574ATS are built for
PCF8574ATS: common questions
Where can I find a PCF8574ATS reference design?
Each of the 2 boards on this page is a real design using the PCF8574ATS. 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 PCF8574ATS use?
Most are built on ESP32 (1) and RP2040/RP2350 (1).
How big is a typical board using the PCF8574ATS?
The median is 88.7 × 83.7 mm, and 50% are two-layer designs.
What is the most popular open source board using the PCF8574ATS?
By GitHub stars, Vaio re by CRImier, with 253 stars.
Can I simulate one of these boards using the PCF8574ATS 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.