2 open source boards using the CD4081BE

Real designs built with the CD4081BE, 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.

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The CD4081BE in open source designs

The gallery holds 2 open source boards using the CD4081BE from 1 GitHub repository; a typical one measures about 235.8 × 99.8 mm and carries around 82 components.

100% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.

The most starred is Motherboard 2023 by RoanTractor.

Microcontrollers on boards using the CD4081BE

AVR/Arduino 2

CD4081BE: common questions

Where can I find a CD4081BE reference design?

Each of the 2 boards on this page is a real design using the CD4081BE. 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 CD4081BE use?

Most are built on AVR/Arduino (2).

How big is a typical board using the CD4081BE?

The median is 235.8 × 99.8 mm, and 100% are two-layer designs.

What is the most popular open source board using the CD4081BE?

By GitHub stars, Motherboard 2023 by RoanTractor, with 0 stars.

Can I simulate one of these boards using the CD4081BE 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.