I needed a simple LED indicator showing that a particular voltage level had been reached—specifically, that a capacitor had charged to a particular potential. I was convinced that there must be a way ...

Distributor Live Electronics is stocking a range of push-in wiring switches and indicator lamps from Japanese manufacturer IDEC. “By comparison with traditional screw-in connectors, the devices reduce ...

If you’re working with 3.3V or 5V circuits, it’s easy for you to throw on a power or status LED here or there. [Tom Gralewicz] has found himself in a pickle, though, often working on projects with ...

Here's something you shouldn't buy for your kids: Bicygnals. They're lights and turn-signals for a bike, and they'll probably be all but useless. The Bicygnals consist of a pair of lights, one for the ...

The lights are turned on and off via a power switch on one of the shoulder straps. There's no word on battery life. Should you be interested, the Torch backpack is currently the subject of a ...