In this informative video, you'll learn how to make a door alarm using simple materials and easy steps. Perfect for enhancing your home security, this guide will walk you through the process of ...

Last month, Ring began taking pre-orders for its Ring Alarm home security system, and today it begins shipping. I've had a chance to spend some time with Ring Alarm, and I've found it's an easy-to-use ...

Now you can build your own simple door alarm security system using a tiny microcontroller chip PIC12F635! The circuit is nothing but an aural alert unit, which raises ...

I was flipping through my deadtree archive of magazines recently when I came across an ad for an ingenious little door alarm in 1906. Granted, it’s not fancy. But it probably did the trick. As you can ...