2 open source boards using the FPF2109

Real designs built with the FPF2109, 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 FPF2109 in open source designs

The gallery holds 2 open source boards using the FPF2109 from 1 GitHub repository; a typical one measures about 26.5 × 26.5 mm and carries around 46 components.

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

The most starred is LHS Controller PCB by dmcke5.

Microcontrollers on boards using the FPF2109

AVR/Arduino 2

What boards using the FPF2109 are built for

Power & battery 2

FPF2109: common questions

Where can I find a FPF2109 reference design?

Each of the 2 boards on this page is a real design using the FPF2109. 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 FPF2109 use?

Most are built on AVR/Arduino (2).

How big is a typical board using the FPF2109?

The median is 26.5 × 26.5 mm, and 100% are two-layer designs.

What is the most popular open source board using the FPF2109?

By GitHub stars, LHS Controller PCB by dmcke5, with 131 stars.

Can I simulate one of these boards using the FPF2109 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.