I actually made this back in February (you can see the date etched next to my initials on the board), and never got around to posting about it. It’s a super simple breakout footprint for a USB mini type-B port. I wanted to make a really simple way to power my breadboard, and since my computer is usually on my work table, this seemed like a great idea. I made about 60 of these tiny boards which measure about 2cm x 3cm and hope to sell them as a really cheap, tiny kit one day.
Other than the board itself, the only components necessary are a USB mini type-B port, a 22uF SMT capacitor, and two header pins, which can plug directly into the power rails of your breadboard. My friend Jen asked me to help her put together a glowing LED circuit inside some ceramic pottery, and part of the concept was that the organic piece would need to plugged into to your computer to ‘live’. Here are some images of the Arduino Pro Mini powered by my breakout board.