Motion detection has become an essential ingredient in traditional electronic security and now it is being utilized in access control and video surveillance systems. With more applications and so many ...

There are many different sensors that can be used to detect motion in a given environment. Passive InfraRed (PIR) sensors are the most used today, as they work by detecting moving heat signatures.

We’re still not sure exactly how [connornishijima]’s motion detector works, though many readers offered plausible explanations in the comments the last time we covered it. It works well enough, though ...

All products featured on WIRED are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. Learn more. My ...

If you live in an area where earthquakes happen, you might be especially interested in this project. With this tutorial you’ll learn how to build your own seismograph and how to use it to detect ...

The home security category continues to be a competitive mix of professionally installed services and DIY options. Among them, SimpliSafe takes a hybrid approach with devices that are easy to set up ...