2 open source boards using the LM3900
Real designs built with the LM3900, 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.
STM32Dual Slope Generator
JordanAceto
99.1 × 99.1 mm163 parts2LCC-BY-4.02
Analog via
starlingcode
213.5 × 128.5 mm269 parts4LCC-BY-NC-4.00
The LM3900 in open source designs
The gallery holds 2 open source boards using the LM3900 from 2 GitHub repositories; a typical one measures about 156.3 × 113.8 mm and carries around 216 components.
50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Dual Slope Generator by JordanAceto.
Microcontrollers on boards using the LM3900
What boards using the LM3900 are built for
LM3900: common questions
Where can I find a LM3900 reference design?
Each of the 2 boards on this page is a real design using the LM3900. 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 LM3900 use?
Most are built on STM32 (1).
How big is a typical board using the LM3900?
The median is 156.3 × 113.8 mm, and 50% are two-layer designs.
What is the most popular open source board using the LM3900?
By GitHub stars, Dual Slope Generator by JordanAceto, with 2 stars.
Can I simulate one of these boards using the LM3900 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.