3 open source boards using the SI8621

Real designs built with the SI8621, 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 SI8621 in open source designs

The gallery holds 3 open source boards using the SI8621 from 3 GitHub repositories; a typical one measures about 100 × 100 mm and carries around 409 components.

100% are two-layer designs, the rest use four layers or more, and 67% carry an open source license.

The most starred is Stmbl 4.0 by rene-dev.

Parts used alongside the SI8621

Microcontrollers on boards using the SI8621

What boards using the SI8621 are built for

SI8621: common questions

Where can I find a SI8621 reference design?

Each of the 3 boards on this page is a real design using the SI8621. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.

What parts are used alongside the SI8621?

The ACT4088, IRAM256a, LM358, lnk304D and non_plated appear in the most repositories here.

Which microcontrollers do boards using the SI8621 use?

Most are built on STM32 (2) and AVR/Arduino (1).

How big is a typical board using the SI8621?

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

What is the most popular open source board using the SI8621?

By GitHub stars, Stmbl 4.0 by rene-dev, with 979 stars.

Can I simulate one of these boards using the SI8621 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.