Hot glue guns are pretty simple beasts: there’s an on/off switch, a heating element, and a source of current, be it battery or wired. You turn it on, and the heater starts warming up; ...

This is a very cool electronic project to control dc loads using a very cheap and reliable design. This video also explains ...

We’ve seen a few H-bridge circuits around these parts before, and here’s another application. This time we have an Old Train ...