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

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 ...

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 ...

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 ...