Surveillance is most important security systems in home, industrial, office and public places. In this security system is based on the embedded system along with GSM and sensor networks. The human ...

Want to set up a home security system, but don’t want to pay a monthly fee to a security company? Techradar has a detailed do-it-yourself project for a connected alert system using Raspberry Pi. While ...

Here is one simple circuit of a general-purpose white LED security light with Passive Infrared (PIR) Motion sensing mechanism. At the heart of the circuit is a PIR sensor module SB0061. SB0061 is a ...