9 open source boards using the ATMEGA328-MU

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

The gallery holds 9 open source boards using the ATMEGA328-MU from 1 GitHub repository; a typical one measures about 9 × 10.5 mm and carries around 32 components.

78% use four copper layers or more, and 100% carry an open source license.

The most starred is Miniscope v4-Rigid-Flex by Aharoni-Lab.

Microcontrollers on boards using the ATMEGA328-MU

What boards using the ATMEGA328-MU are built for

ATMEGA328-MU: common questions

Where can I find a ATMEGA328-MU reference design?

Each of the 9 boards on this page is a real design using the ATMEGA328-MU. 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 ATMEGA328-MU use?

Most are built on AVR/Arduino (9).

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

The median is 9 × 10.5 mm, and 22% are two-layer designs.

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

By GitHub stars, Miniscope v4-Rigid-Flex by Aharoni-Lab, with 157 stars.

Can I simulate one of these boards using the ATMEGA328-MU 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.

Browse boards by part