Security is a prime concern in our modern life. Everyone wants to be as much secure as possible. We would all like to believe living in a safe and secured society. Nowadays there are various systems on the market ranging from inexpensive alarms to highly sophisticated systems requiring professional installation. The "Microcontroller Based Universal Surveillance System" a pretty essential part of any particular area. This system works as a watchdog for a particular area. It can detect any change, desirable or undesirable, at instance including motion, temperature, entrance/exit, smoke, water,...