PASSWORD BASED DOOR LOCK SYSTEM USING 8051 MICROCONTROLLER

Abstract

The objective of this project is to provide such a security system which is highly secure for Commercial,Residential, Industrial areas, etc. By using an input device an individual user enters a Password if the entered Passwordis matched with the predetermined Password stored in the data memory of the micro-controller, then the microcontroller sends the input signal for actuating the dc motor drive in a specific direction required for opening of the door.If the entered Password doesn’t matched with the predetermined Password then no input signal generates from themicro-controller to activate the dc motor drive. Hence the door remains unlock.