8 open source boards using the LM4040DBZ-5
Real designs built with the LM4040DBZ-5, 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.
TapeLooper MainBoard
TheSlowGrowth
119.6 × 106.5 mm243 parts2LCustom license10
STM32Wagyu
mmalex
25.4 × 106.7 mm95 parts4LCC0-1.09
MICRO-OX Main VCO board
JordanAceto
133.9 × 165.1 mm280 parts4LCC-BY-4.08
Phasor II
84.5 × 108.3 mm178 parts2LCC-BY-4.06
Josh Ox Ribbon Synth Main VCO board
170.2 × 213.4 mm349 parts2LCC-BY-4.01
AVR/ArduinoB-Sides Badge
OklahomaOpenSourceHardware
75.5 × 78.8 mm70 parts2LNo license3
Josh Ox Ribbon Synth VCF/VCA/BBD board
132.1 × 213.4 mm349 parts2LCC-BY-4.01
MICRO-OX VCF/VCA board
60.3 × 165.1 mm132 parts2LCC-BY-4.08
The LM4040DBZ-5 in open source designs
The gallery holds 8 open source boards using the LM4040DBZ-5 from 6 GitHub repositories; a typical one measures about 102 × 136.7 mm and carries around 211 components.
75% are two-layer designs, the rest use four layers or more, and 75% carry an open source license.
The most starred is TapeLooper MainBoard by TheSlowGrowth.
Parts used alongside the LM4040DBZ-5
Microcontrollers on boards using the LM4040DBZ-5
What boards using the LM4040DBZ-5 are built for
LM4040DBZ-5: common questions
Where can I find a LM4040DBZ-5 reference design?
Each of the 8 boards on this page is a real design using the LM4040DBZ-5. 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 LM4040DBZ-5?
The TL072, 4013, L78L05_SOT89, L79L05_SOT89 and LM4040C-2.5 appear in the most repositories here.
Which microcontrollers do boards using the LM4040DBZ-5 use?
Most are built on AVR/Arduino (1) and STM32 (1).
How big is a typical board using the LM4040DBZ-5?
The median is 102 × 136.7 mm, and 75% are two-layer designs.
What is the most popular open source board using the LM4040DBZ-5?
By GitHub stars, TapeLooper MainBoard by TheSlowGrowth, with 10 stars.
Can I simulate one of these boards using the LM4040DBZ-5 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.