I’m sure you’ve noticed that many new cars have intense turn signals, toggling between on and off instantly without the soft fade you see on the blinkers of older cars. That’s a byproduct of LEDs ...

You can fade out and fade in the light of an LED automatically by using Arduino and a simple code that is described below. Even though the Arduino board cannot output variable voltage on its digital ...

More than any other technology, LEDs, or light-emitting diodes, have transformed the universe of illumination. Tiny yet mighty, these energy-saving wonders have replaced the once-ubiquitous ...

They last much longer, can be dimmed and produce light in a variety of colors. By Arlene Hirst This article is part of our Design special section about making the environment a creative partner in the ...