1 open source board using the MAX3221ECPWR

Real designs built with the MAX3221ECPWR, 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 MAX3221ECPWR in open source designs

The gallery holds 1 open source boards using the MAX3221ECPWR from 1 GitHub repository; a typical one measures about 167 × 115 mm and carries around 210 components.

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

The most starred is Aquarius plus by aquarius-plus.

Microcontrollers on boards using the MAX3221ECPWR

MAX3221ECPWR: common questions

Where can I find a MAX3221ECPWR reference design?

Each of the 1 boards on this page is a real design using the MAX3221ECPWR. 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 MAX3221ECPWR use?

Most are built on ESP32 (1).

How big is a typical board using the MAX3221ECPWR?

The median is 167 × 115 mm, and 100% are two-layer designs.

What is the most popular open source board using the MAX3221ECPWR?

By GitHub stars, Aquarius plus by aquarius-plus, with 1 stars.

Can I simulate one of these boards using the MAX3221ECPWR 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