The LED on your Amazon Echo Speaker has a number of color settings that tell you what's going on with your device. Here's ...

Flashing, spinning, and oddly blinking LED indicators have become the modern equivalent of red warning lights on a car dashboard. Rather than giving every potential problem and function on a ...

It is a pretty common first project to use an Arduino (or similar) to blink an LED. Which, of course, brings taunts of: you could have used a 555! You can, of course, also use any sort of oscillator, ...

It is the time of year when decorations appear everywhere and everyone has a preferred style, from bright flashing lights to something more understated. Christmas decorations are meant to be cheerful, ...