In this step-by-step tutorial, learn how to make a powerful alarm at home using a DC motor. Perfect for DIY enthusiasts, this video guides you through the entire process with clear instructions.

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

One of the best app options for setting up your phone as a security camera is Alfred. It's cross-platform, so it doesn't ...