2 open source boards using the USB-AB
Real designs built with the USB-AB, 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.
AVR/ArduinoKicad Smart Watch
AFLProjects
36.4 × 29.4 mm48 parts2LNo license12
AVR/ArduinoKicad Smart Watch old
31.1 × 26 mm39 parts4LNo license12
The USB-AB in open source designs
The gallery holds 2 open source boards using the USB-AB from 1 GitHub repository; a typical one measures about 33.8 × 27.7 mm and carries around 44 components.
50% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.
The most starred is Kicad Smart Watch by AFLProjects.
Microcontrollers on boards using the USB-AB
What boards using the USB-AB are built for
USB-AB: common questions
Where can I find a USB-AB reference design?
Each of the 2 boards on this page is a real design using the USB-AB. 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 USB-AB use?
Most are built on AVR/Arduino (2).
How big is a typical board using the USB-AB?
The median is 33.8 × 27.7 mm, and 50% are two-layer designs.
What is the most popular open source board using the USB-AB?
By GitHub stars, Kicad Smart Watch by AFLProjects, with 12 stars.
Can I simulate one of these boards using the USB-AB 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.