8 open source boards using the LM393DR
Real designs built with the LM393DR, 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.
ESP32HolyGrail
whbCool
157 × 73 mm195 parts6LNo license1
RP2040/RP2350Digirig icom
1vers1on
48.5 × 56 mm60 parts4LNo license1
Nova pcb v6 power v2
Ace2932
112 × 90 mm57 parts4LMIT1
MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIV
MorseKOB
104.1 × 78.7 mm75 parts2LMIT0
MuKOB / RPi / USB - Key/Paddle&Sounder Interface MkIII
104.1 × 78.7 mm72 parts2LMIT0
STM32Pcb com erros
gabrielgomes16
92.2 × 51.9 mm52 parts2LNo license0
MuKOB / RPi / USB - K&S IF MkV
103 × 59.6 mm59 parts2LMIT0
MuKOB-Key & Sounder Interface, MKOB4 USB Interface
104.1 × 78.7 mm48 parts2LMIT0
The LM393DR in open source designs
The gallery holds 8 open source boards using the LM393DR from 5 GitHub repositories; a typical one measures about 104.1 × 75.9 mm and carries around 60 components.
63% are two-layer designs, the rest use four layers or more, and 63% carry an open source license.
The most starred is HolyGrail by whbCool.
Microcontrollers on boards using the LM393DR
What boards using the LM393DR are built for
LM393DR: common questions
Where can I find a LM393DR reference design?
Each of the 8 boards on this page is a real design using the LM393DR. 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 LM393DR use?
Most are built on ESP32 (1), RP2040/RP2350 (1) and STM32 (1).
How big is a typical board using the LM393DR?
The median is 104.1 × 75.9 mm, and 63% are two-layer designs.
What is the most popular open source board using the LM393DR?
By GitHub stars, HolyGrail by whbCool, with 1 stars.
Can I simulate one of these boards using the LM393DR 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.