The main principle of the circuit is to provide security using PIR sensor. This can be used in the museums to protect the valuable things and also in defense applications to detect the humans in war ...

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 detectors are widely known for their role in home security systems, but their usefulness extends far beyond guarding ...

Home automation with high usefulness and low annoyance tends to rely on reliable person sensing, and [francescopace]’s ...