These light up paper circuit cards were much easier to make than I expected and only need a few inexpensive materials.

Learn the basics of soldering and circuit assembly by constructing a rotating LED Ferris wheel. This colorful project introduces key electronic components and soldering techniques, perfect for ...

Since the earliest versions of indoor LED light bulbs were developed, their designers have faced a variety of technical challenges. These include AC-to-DC power conversion, thermal design/heat-sinking ...

We all carry supercomputers in our pockets and use dozens of electric gizmos every day but rarely stop to marvel at the magical act of flicking a switch. Use your ordinary conducting and extraordinary ...

The design features a 555 timer simple application in which it manipulates the sequence of LED lighting. It is a low power that can last longer even with small energy source. The design features a 555 ...

You’ve probably heard of light-emitting diodes, a type of energy-efficient light. While they’re good for practical reasons—say, illuminating a room or a passageway—they can also add a little bling to ...