Ever found yourself tangled in a mess of wires and components, struggling to create a clear and intuitive wiring diagram? If so, you’re not alone. Many electronics enthusiasts face this challenge, ...

Forget printing circuits: how about drawing ’em instead? At least, that’s what you can do with this rollerball, which spews out conductive silver ink to let you doodle circuits all day long. The ...

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 ...