6 open source boards using the ATMEGA328-A

Real designs built with the ATMEGA328-A, 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 ATMEGA328-A in open source designs

The gallery holds 6 open source boards using the ATMEGA328-A from 6 GitHub repositories; a typical one measures about 100 × 87 mm and carries around 60 components.

100% are two-layer designs, the rest use four layers or more, and 17% carry an open source license.

The most starred is LPA-hardware by taborlab.

Parts used alongside the ATMEGA328-A

Microcontrollers on boards using the ATMEGA328-A

What boards using the ATMEGA328-A are built for

ATMEGA328-A: common questions

Where can I find a ATMEGA328-A reference design?

Each of the 6 boards on this page is a real design using the ATMEGA328-A. 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 ATMEGA328-A?

The MPX4250AP, TC4424AVOA and VNLD5090-E appear in the most repositories here.

Which microcontrollers do boards using the ATMEGA328-A use?

Most are built on AVR/Arduino (6).

How big is a typical board using the ATMEGA328-A?

The median is 100 × 87 mm, and 100% are two-layer designs.

What is the most popular open source board using the ATMEGA328-A?

By GitHub stars, LPA-hardware by taborlab, with 11 stars.

Can I simulate one of these boards using the ATMEGA328-A 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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