2 open source boards using the U9
Real designs built with the U9, 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.
STM32Azusa
issaimaru
105 × 137 mm298 parts4LApache-2.09
LR P3A
Lightiam
167 × 111.2 mm44 parts16LBSD-3-Clause0
The U9 in open source designs
The gallery holds 2 open source boards using the U9 from 2 GitHub repositories; a typical one measures about 136 × 124.1 mm and carries around 171 components.
100% use four copper layers or more, and 100% carry an open source license.
The most starred is Azusa by issaimaru.
Microcontrollers on boards using the U9
What boards using the U9 are built for
U9: common questions
Where can I find a U9 reference design?
Each of the 2 boards on this page is a real design using the U9. 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 U9?
The U10, U2, U4, U5 and U6 appear in the most repositories here.
Which microcontrollers do boards using the U9 use?
Most are built on STM32 (1).
How big is a typical board using the U9?
The median is 136 × 124.1 mm, and 0% are two-layer designs.
What is the most popular open source board using the U9?
By GitHub stars, Azusa by issaimaru, with 9 stars.
Can I simulate one of these boards using the U9 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.