As a business owner, you probably spend too much time at the office or shop, and not enough at home. Even when you do leave the office during the day, it may be only to run errands, pick up supplies ...

Recently, I exhausted my stock of common passive infrared (PIR) motion sensor modules and was looking for a new one to play with. I searched the web for a small type with self-contained electronics.

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 ...