3 open source boards using the MOC3021M

Real designs built with the MOC3021M, 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 MOC3021M in open source designs

The gallery holds 3 open source boards using the MOC3021M from 3 GitHub repositories; a typical one measures about 100 × 80 mm and carries around 31 components.

100% are two-layer designs, the rest use four layers or more, and 67% carry an open source license.

The most starred is Hv board by andia89.

Parts used alongside the MOC3021M

Microcontrollers on boards using the MOC3021M

What boards using the MOC3021M are built for

MOC3021M: common questions

Where can I find a MOC3021M reference design?

Each of the 3 boards on this page is a real design using the MOC3021M. 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 MOC3021M use?

Most are built on ESP32 (2).

How big is a typical board using the MOC3021M?

The median is 100 × 80 mm, and 100% are two-layer designs.

What is the most popular open source board using the MOC3021M?

By GitHub stars, Hv board by andia89, with 6 stars.

Can I simulate one of these boards using the MOC3021M 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