3 open source boards using the PCF8574T
Real designs built with the PCF8574T, 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.
ESP32Nomad
0Zane
65 × 120 mm69 parts2LMIT15
ESP32Control
kramerbastian
94.6 × 88.4 mm65 parts2LNo license1
AVR/ArduinoKM11 mainboard
fjalvingh
131.8 × 80 mm41 parts2LNo license0
The PCF8574T in open source designs
The gallery holds 3 open source boards using the PCF8574T from 3 GitHub repositories; a typical one measures about 94.6 × 88.4 mm and carries around 65 components.
100% are two-layer designs, the rest use four layers or more, and 33% carry an open source license.
The most starred is Nomad by 0Zane.
Parts used alongside the PCF8574T
Microcontrollers on boards using the PCF8574T
What boards using the PCF8574T are built for
PCF8574T: common questions
Where can I find a PCF8574T reference design?
Each of the 3 boards on this page is a real design using the PCF8574T. 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 PCF8574T use?
Most are built on ESP32 (2) and AVR/Arduino (1).
How big is a typical board using the PCF8574T?
The median is 94.6 × 88.4 mm, and 100% are two-layer designs.
What is the most popular open source board using the PCF8574T?
By GitHub stars, Nomad by 0Zane, with 15 stars.
Can I simulate one of these boards using the PCF8574T 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.