3 open source boards using the PCF8574AT_3_518

Real designs built with the PCF8574AT_3_518, 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.

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The PCF8574AT_3_518 in open source designs

The gallery holds 3 open source boards using the PCF8574AT_3_518 from 2 GitHub repositories; a typical one measures about 137.2 × 83.8 mm and carries around 177 components.

100% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.

The most starred is KRAKE by PubInv.

Parts used alongside the PCF8574AT_3_518

LM7805CTG 2

Microcontrollers on boards using the PCF8574AT_3_518

What boards using the PCF8574AT_3_518 are built for

PCF8574AT_3_518: common questions

Where can I find a PCF8574AT_3_518 reference design?

Each of the 3 boards on this page is a real design using the PCF8574AT_3_518. 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 PCF8574AT_3_518 use?

Most are built on ESP32 (2) and AVR/Arduino (1).

How big is a typical board using the PCF8574AT_3_518?

The median is 137.2 × 83.8 mm, and 100% are two-layer designs.

What is the most popular open source board using the PCF8574AT_3_518?

By GitHub stars, KRAKE by PubInv, with 9 stars.

Can I simulate one of these boards using the PCF8574AT_3_518 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.