2 open source boards using the C138665
Real designs built with the C138665, 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.
STM32Hummingbird
knosmos
53 × 20 mm43 parts4LNo license1
STM32Hummingbird old
56.9 × 50.9 mm42 parts2LNo license1
The C138665 in open source designs
The gallery holds 2 open source boards using the C138665 from 1 GitHub repository; a typical one measures about 55 × 35.4 mm and carries around 43 components.
50% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.
The most starred is Hummingbird by knosmos.
Microcontrollers on boards using the C138665
What boards using the C138665 are built for
C138665: common questions
Where can I find a C138665 reference design?
Each of the 2 boards on this page is a real design using the C138665. 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 C138665 use?
Most are built on STM32 (2).
How big is a typical board using the C138665?
The median is 55 × 35.4 mm, and 50% are two-layer designs.
What is the most popular open source board using the C138665?
By GitHub stars, Hummingbird by knosmos, with 1 stars.
Can I simulate one of these boards using the C138665 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.