He suddenly realized that electrical junction boxes were cheap, widely available, and perfectly suited for the job. He hauled off to the hardware store and bought a few different boxes ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

The device is powered by an 18V transformer and rectifier and, as a bonus, [Stynus] got all of his parts on the cheap which made this a great solution to the expensive resistance decade box problem.