1 open source board using the LM4991MM

Real designs built with the LM4991MM, 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 LM4991MM in open source designs

The gallery holds 1 open source boards using the LM4991MM from 1 GitHub repository; a typical one measures about 145.7 × 88.6 mm and carries around 85 components.

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

The most starred is TRS-IO++ by apuder.

Microcontrollers on boards using the LM4991MM

LM4991MM: common questions

Where can I find a LM4991MM reference design?

Each of the 1 boards on this page is a real design using the LM4991MM. 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 LM4991MM use?

Most are built on ESP32 (1).

How big is a typical board using the LM4991MM?

The median is 145.7 × 88.6 mm, and 100% are two-layer designs.

What is the most popular open source board using the LM4991MM?

By GitHub stars, TRS-IO++ by apuder, with 1 stars.

Can I simulate one of these boards using the LM4991MM 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.

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