2 open source boards using the LM331N
Real designs built with the LM331N, 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.
STM32Precharge 2027
SCFormulaElectric
96.6 × 40.7 mm77 parts4LNo license6
STM322026Precharge
96.6 × 40.7 mm72 parts4LNo license6
The LM331N in open source designs
The gallery holds 2 open source boards using the LM331N from 1 GitHub repository; a typical one measures about 96.6 × 40.7 mm and carries around 75 components.
100% use four copper layers or more, and 0% carry an open source license.
The most starred is Precharge 2027 by SCFormulaElectric.
Microcontrollers on boards using the LM331N
LM331N: common questions
Where can I find a LM331N reference design?
Each of the 2 boards on this page is a real design using the LM331N. 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 LM331N use?
Most are built on STM32 (2).
How big is a typical board using the LM331N?
The median is 96.6 × 40.7 mm, and 0% are two-layer designs.
What is the most popular open source board using the LM331N?
By GitHub stars, Precharge 2027 by SCFormulaElectric, with 6 stars.
Can I simulate one of these boards using the LM331N 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.