You can make a low volume product by buying a bunch of Arduinos as your controller. You just stick them in the device. There's no license issue. While I haven't exhaustively looked, one vendor's kit I did look at explicitly stated their boards were not licensed for that kind of commercial use. Qualcomm could very well make their boards for development, test, and evaluation purposes only. And that would be my worry. It wouldn't effect tinkering at home or use in a classroom, but would mean you couldn't buy a stack of Nanos, flash them, and plug them into your project, if it is for a commercial purpose.
> You can make a low volume product by buying a bunch of Arduinos as your controller. You just stick them in the device. There's no license issue.
Note that the Arduino libraries are LGPL licensed. Unless you have a commercial agreement with Arduino, you have to distribute your firmware to your customers as object files so it can be linked to updated/modified versions of the Arduino libraries. This means that I wouldn't use Arduino for a shipping product unless you're fine with the firmware on the device being publicly available.
> one vendor's kit I did look at explicitly stated their boards were not licensed for that kind of commercial use. Qualcomm could very well make their boards for development, test, and evaluation purposes only.
Under what legal theory?