2 open source boards using the STM32U031K8Ux
Real designs built with the STM32U031K8Ux, 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.
STM32Aurora-Watch
CooperW824
36 × 36 mm79 parts4LMIT0
STM32Earringv3
aykevl
24 × 30.3 mm58 parts2LNo license81
The STM32U031K8Ux in open source designs
The gallery holds 2 open source boards using the STM32U031K8Ux from 2 GitHub repositories; a typical one measures about 30 × 33.1 mm and carries around 69 components.
50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is Earringv3 by aykevl.
Microcontrollers on boards using the STM32U031K8Ux
What boards using the STM32U031K8Ux are built for
STM32U031K8Ux: common questions
Where can I find a STM32U031K8Ux reference design?
Each of the 2 boards on this page is a real design using the STM32U031K8Ux. 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 STM32U031K8Ux use?
Most are built on STM32 (2).
How big is a typical board using the STM32U031K8Ux?
The median is 30 × 33.1 mm, and 50% are two-layer designs.
What is the most popular open source board using the STM32U031K8Ux?
By GitHub stars, Earringv3 by aykevl, with 81 stars.
Can I simulate one of these boards using the STM32U031K8Ux 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.