3 open source boards using the 4N32
Real designs built with the 4N32, 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.
RP2040/RP2350OpenTNC-Pico twolayer
devzendo
99.1 × 99.1 mm40 parts2LGPL-3.00
RP2040/RP2350OpenTNC-Pico
99.1 × 99.1 mm38 parts4LGPL-3.00
AVR/ArduinoDoor if
zam-haus
65 × 56.5 mm38 parts2LGPL-3.01
The 4N32 in open source designs
The gallery holds 3 open source boards using the 4N32 from 2 GitHub repositories; a typical one measures about 99.1 × 99.1 mm and carries around 38 components.
67% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is Door if by zam-haus.
Microcontrollers on boards using the 4N32
4N32: common questions
Where can I find a 4N32 reference design?
Each of the 3 boards on this page is a real design using the 4N32. 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 4N32 use?
Most are built on RP2040/RP2350 (2) and AVR/Arduino (1).
How big is a typical board using the 4N32?
The median is 99.1 × 99.1 mm, and 67% are two-layer designs.
What is the most popular open source board using the 4N32?
By GitHub stars, Door if by zam-haus, with 1 stars.
Can I simulate one of these boards using the 4N32 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.