Password Based Door Locking


Rating: 0.00 / 5 
MCU Circuits / Microcontroller Circuits
Security is a prime concern in our day-today life. Everyone wants to be as much secure as possible. An access control for doors forms a vital link in a security chain. The microcontroller based Door locker is an access control system that allows only authorized persons to access a restricted area. The system is fully controlled by the 8 bit microcontroller AT89C2051 which has a 2Kbytes of ROM for the program memory. The password is stored in the EPROM so that we can change it at any time.
Password Based Door Locking - schematic

The system has a Keypad by which the password can be entered through it. When the entered password equals with the password stored in the memory then the relay gets on and so that the door is opened. If we entered a wrong password for more than three time


  • News Oracle
    Rodgers will remain on the Cypress Board and become a project leader working on key projects. Cypress ... The company's Programmable Solutions division designs and develops programmable solutions, counting Traveo automotive
     2 May 2016
  • I had two weeks' vacation over the holidays and after Christmas, and I did nothing but make and program Arduino from the getting started booklet. It was oddly so ... It's got small LED matrix that displays an icon of the local
     2 May 2016
  • EE Times
    EE Times NEC, Hitachi Ltd., Mitsubishi, Texas Instruments and STMicroelectronics were getting into the act, Cataldo wrote. It was the days of flip ... They were already making their own ARM-based SoCs given the chips represented a big part o
     2 May 2016
  • Smarter Analyst
    Smarter Analyst Key customer engagement was driven in part by the introduction of our first two families of 40-nm, ARM-based , one for automotive-grade applications, the other for high-volume consumer applications. Since the merger, Cypress h
     28 April 2016
    A practical SPI master is Linear Linduino , which is an Arduino clone with extra features to interface to LT demo boards. One extra feature is a level-shifted SPI port. This level-shifting function is especially helpful when
     28 April 2016
  • Indiana State University
    When the crows return to campus this fall, a group of students believe their product - Scarecrow Inc.'s ShockTrainer 9000 - could be the silver bullet for keeping the birds at bay. The students - seniors Heath Harris, Lacrisha Clinton, Will
     22 April 2016
  • EE Times
    EE Times The badges, manufacturerd by Sunstone and assembled by Screaming , were programmed to “talk” to one another and to send messages about the wearers' interests. “They could set their interests –- software, har
     18 April 2016
  • InfoWorld
    InfoWorld At $15, the Quark Developer Kit D2000 is perhaps the least expensive computer Intel has ever shipped. The single-board computer has the components mashed onto a tiny board. It can be used to develop gadgets, wearables, home 
     12 April 2016
  • Popular Science
    Popular Science In a meeting with Popular Science before the announcement, the Russian billionaire produced an example of the he's considering as the basis for the interstellar mission: an extremely small satellite weighing just 1-2 grams, o
     12 April 2016


Leave Comment

characters left: