5 open source boards using the LM2901
Real designs built with the LM2901, 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.
TI99 22
danwerner21
350 × 224.3 mm242 parts2LNo license50- schematic only · 419 parts
Retro-Schematics
omega9380
419 partsMIT19 
Peak-And hold-Driver
Tjeerdie
100.1 × 50 mm112 parts2LGPL-3.017
ESP32TI99 22
244 × 244 mm257 parts4LNo license4
STM32Openinverter hw mainboard mini
llange
56.8 × 67.3 mm96 parts2LCC-BY-SA-4.04
The LM2901 in open source designs
The gallery holds 5 open source boards using the LM2901 from 5 GitHub repositories; a typical one measures about 172 × 145.8 mm and carries around 242 components.
75% are two-layer designs, the rest use four layers or more, and 60% carry an open source license.
The most starred is TI99 22 by danwerner21.
Parts used alongside the LM2901
What boards using the LM2901 are built for
LM2901: common questions
Where can I find a LM2901 reference design?
Each of the 5 boards on this page is a real design using the LM2901. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the LM2901?
The 74LS244, 74LS32, 27C64, 74LS00 and 74LS03 appear in the most repositories here.
Which microcontrollers do boards using the LM2901 use?
Most are built on ESP32 (1) and STM32 (1).
How big is a typical board using the LM2901?
The median is 172 × 145.8 mm, and 75% are two-layer designs.
What is the most popular open source board using the LM2901?
By GitHub stars, TI99 22 by danwerner21, with 50 stars.
Can I simulate one of these boards using the LM2901 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.