How long can you keep an Arduino circuit running on three AA batteries? With careful design, [educ8s] built a temperature sensor that lasts well over a year on a single charge of three 2250 mAH ...

We have another simple Arduino project from Circuito.io today in the form of everyone’s favourite Nokia game: Snake. What we have here is an Uno hooked up to a small battery, a speaker, a joystick and ...