6 open source boards using the LM397
Real designs built with the LM397, 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.
STM32Custom BMS
SCFormulaElectric
104.2 × 59.7 mm192 parts4LNo license6
STM32Enepaq TempSensor Board
68.9 × 129.2 mm157 parts4LNo license6
STM32ETS Board Copy
68.9 × 129.2 mm157 parts4LNo license6
BPSD-2025
LSUTigerRacing
68.5 × 43 mm50 parts2LNo license7
TemperatureMonitor
89Mods
25.9 × 11.2 mm10 parts2LMIT2
STM32BSPD 5
40.1 × 54.3 mm24 parts2LNo license6
The LM397 in open source designs
The gallery holds 6 open source boards using the LM397 from 3 GitHub repositories; a typical one measures about 68.7 × 57 mm and carries around 104 components.
50% are two-layer designs, the rest use four layers or more, and 17% carry an open source license.
The most starred is BPSD-2025 by LSUTigerRacing.
Microcontrollers on boards using the LM397
What boards using the LM397 are built for
LM397: common questions
Where can I find a LM397 reference design?
Each of the 6 boards on this page is a real design using the LM397. 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 LM397 use?
Most are built on STM32 (4).
How big is a typical board using the LM397?
The median is 68.7 × 57 mm, and 50% are two-layer designs.
What is the most popular open source board using the LM397?
By GitHub stars, BPSD-2025 by LSUTigerRacing, with 7 stars.
Can I simulate one of these boards using the LM397 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.