Have you ever noticed a blinking red light on one of your smoke detectors and wondered what it meant? Here are the different ...

One of those times is if you notice an orange blinking light on your router that wasn't there previously. This could signal one of a few things going on, and it's important to know what to check ...

Dear Action Line, I find myself in acute intellectual misery as I attempt to determine why most of the flashing yellow left ...

Blinking an LED with three resistors and a capacitor. Ok, ok… one of the resistors is a light-dependent resistor, but still. In reality, this is a classic relaxation oscillator. The capacitor ...

Sometimes, if you're out shopping late at night (and perhaps lost where you parked your car), you might notice a blinking blue light in the parking lot. This isn't a standard parking lot light ...