In this informative video, you'll learn how to make a door alarm using simple materials and easy steps. Perfect for enhancing ...

In this step-by-step tutorial, you'll learn how to make a very loud, simple, and powerful alarm using everyday materials.

Ultra simple circuit of the tilt sensor alarm presented here can be fabricated using readily available inexpensive components. The circuit is a true transistor based design. Home made Tilt sensor for ...

While PIR sensors can be used with Arduino and other microcontroller boards, those best-suited for hobby use are smart enough to perform simple tasks without any programming.

A leak sensor is a quick and affordable way to identify potentially damaging water leaks.