Security

Visitor Monitoring System with Raspberry Pi and Pi Camera Visitor Monitoring System with Raspberry Pi and Pi Camera

Raspberry Pi is an ARM cortex based popular development board designed for Electronic Engineers and Hobbyists. With the…

Laser Security Alarm Circuit using IC 555 and LM358 Laser Security Alarm Circuit

Security is main concern for various buildings, houses and offices. There are a variety of security alarms available in market…