1 open source board using the 78LXX

Real designs built with the 78LXX, 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 78LXX in open source designs

The gallery holds 1 open source boards using the 78LXX from 1 GitHub repository; a typical one measures about 108 × 88 mm and carries around 124 components.

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

The most starred is Main board by m0xpd.

Microcontrollers on boards using the 78LXX

What boards using the 78LXX are built for

78LXX: common questions

Where can I find a 78LXX reference design?

Each of the 1 boards on this page is a real design using the 78LXX. 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 78LXX use?

Most are built on AVR/Arduino (1).

How big is a typical board using the 78LXX?

The median is 108 × 88 mm, and 100% are two-layer designs.

What is the most popular open source board using the 78LXX?

By GitHub stars, Main board by m0xpd, with 25 stars.

Can I simulate one of these boards using the 78LXX 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