Abstract

Theobjective of this project is to provide such a security system which is highlysecure for Commercial, Residential, Industrial areas, etc. By using an inputdevice an individual user enters a Password if the entered Password is matchedwith the predetermined Password stored in the data memory of themicro-controller, then the micro-controller sends the input signal foractuating the dc motor drive in a specific direction required for opening ofthe door. If the entered Password doesn’t matched with the predetermined Passwordthen no input signal generates from the micro-controller to activate the dcmotor drive. Hence the door remains unlock.

Keywords: Micro-controller, dc motor drive,16x2 dot matrix LCD display, 4x4 keypad, power supply, alarm system(Buzzer).