9 inches deep, the Cicada has a ridiculously ... but you’ll need to provide your own nine-volt DC center-negative power supply (minimum 50mA). As for that ingenious design, you'll notice there ...

but he has come up with a better way to supply power to breadboards. It’s a project called snapVCC, and it turns a 9 volt battery into a regulated 3.3 or 5 volt supply. The idea behind snapVCC ...