This looks really neat, although I share other commenter's feeling that the price was surprisingly high. As a minor edit, the word "breakout board" is used in

This looks really neat, although I share other commenter's feeling that the price was surprisingly high. As a minor edit, the word "breakout board" is used in a non-standard manner I think. It usually applies to small pieces of circuit board that hold a single integrated cicuit or other component with many/small/fiddly pins, and route them (break them out) to typically 0.1"-spaced pins. This makes the IC or other component accessible for breadboarding and/or hand soldering. A circuit board that holds multiple such components with tracks routed between them for connections is not a breakou4 board IMO, that's just a circuit board.