2 open source boards using the ATmega328-M

Real designs built with the ATmega328-M, 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-M in open source designs

The gallery holds 2 open source boards using the ATmega328-M from 2 GitHub repositories; a typical one measures about 54.7 × 35.8 mm and carries around 42 components.

50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.

The most starred is Arduino-UNO-Clone-PCB by swapnil-maurya.

Microcontrollers on boards using the ATmega328-M

ATmega328-M: common questions

Where can I find a ATmega328-M reference design?

Each of the 2 boards on this page is a real design using the ATmega328-M. 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-M use?

Most are built on AVR/Arduino (2).

How big is a typical board using the ATmega328-M?

The median is 54.7 × 35.8 mm, and 50% are two-layer designs.

What is the most popular open source board using the ATmega328-M?

By GitHub stars, Arduino-UNO-Clone-PCB by swapnil-maurya, with 0 stars.

Can I simulate one of these boards using the ATmega328-M 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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