17 open source boards using the ATmega328PB-A

Real designs built with the ATmega328PB-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 ATmega328PB-A in open source designs

The gallery holds 17 open source boards using the ATmega328PB-A from 13 GitHub repositories; a typical one measures about 79.3 × 55 mm and carries around 66 components.

82% are two-layer designs, the rest use four layers or more, and 29% carry an open source license.

The most starred is C64pico by silvervest.

Parts used alongside the ATmega328PB-A

Microcontrollers on boards using the ATmega328PB-A

ATmega328PB-A: common questions

Where can I find a ATmega328PB-A reference design?

Each of the 17 boards on this page is a real design using the ATmega328PB-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.

Which microcontrollers do boards using the ATmega328PB-A use?

Most are built on AVR/Arduino (16) and RP2040/RP2350 (1).

How big is a typical board using the ATmega328PB-A?

The median is 79.3 × 55 mm, and 82% are two-layer designs.

What is the most popular open source board using the ATmega328PB-A?

By GitHub stars, C64pico by silvervest, with 87 stars.

Can I simulate one of these boards using the ATmega328PB-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.

Browse boards by part