Simple Sound Processor presented here is an ultra-simple circuit module suitable for almost all basic electronics and microcontroller projects. For example, this module can be used as a front-end in ...

The solution is simple – either connect a charger externally, or short-circuit the OUT- and B- with something metal (I often add an external button), but it’s annoying to deal with.

This isn’t a one-off dip into circuit sculpture for [Eirik], we featured his broader body of work back in 2018, all of it worth checking out in more depth. The glowing mask is actually made of PCB.

This simple to construct water fishing thermometer circuit is intended to be used in sports applications like for example a fishing contest. A sensor measures the water temperature at a certain depth.

If the loop is broken at all, it becomes an open circuit, and no current will flow. In this project you will build your own simple circuit by disassembling a flashlight (with permission, of course).

The projects we tried took the kids between 15 seconds (to build a simple circuit) and four minutes (to build a push button). These times felt short, but the kids on our first test panel liked how ...