5 open source boards using the PCF8575DBR

Real designs built with the PCF8575DBR, 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.

The PCF8575DBR in open source designs

The gallery holds 5 open source boards using the PCF8575DBR from 4 GitHub repositories; a typical one measures about 69.6 × 70.5 mm and carries around 40 components.

80% are two-layer designs, the rest use four layers or more, and 40% carry an open source license.

The most starred is EL6170 Pro Max Plus by jsjsjsjsjsjsjson.

Microcontrollers on boards using the PCF8575DBR

What boards using the PCF8575DBR are built for

PCF8575DBR: common questions

Where can I find a PCF8575DBR reference design?

Each of the 5 boards on this page is a real design using the PCF8575DBR. 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 PCF8575DBR use?

Most are built on ESP32 (4) and Nordic nRF (1).

How big is a typical board using the PCF8575DBR?

The median is 69.6 × 70.5 mm, and 80% are two-layer designs.

What is the most popular open source board using the PCF8575DBR?

By GitHub stars, EL6170 Pro Max Plus by jsjsjsjsjsjsjson, with 7 stars.

Can I simulate one of these boards using the PCF8575DBR 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.

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