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 ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› Advice, staff picks, mythbusting, and more. Let us help you. Published February 9 ...

This circuit adds a nice fade-in fade-out visual effects when switching your in-car lights on and off. The fading time can be changed by adjusting the charging and discharging times of the capacitor.

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 ...