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Thread: Digital code lock

  1. #1
    Junior Member navnn
    Join Date
    Sep 2009
    Location
    , karnataka, India.
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    Default Digital code lock

    hello,
    i m doing a project using AT89c51 microcontroller. It is a digital code lock using the th IC and a 4X3 keypad and a 16x2 LCD display. i m new to this.. so can someone provide me the program???


  2. #2
    Junior Member vijaymk
    Join Date
    Oct 2009
    Location
    , maharashtra, India.
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    Default

    im working on digital lock using AT89C2051 project
    what is the password for both the relays
    how to change the password
    i have not connected anything to the relay,i'm thinking about connecting LED at the output of relay how do i connect it
    plz reply as soon as possible
    The circuit as below


    you have mentioned that you have made changes to this project
    plz tell what changes hav u done in the program and the circuit
    & thanks for this project its really good one
    vj

  3. #3
    Junior Member rearthur2003
    Join Date
    Aug 2008
    Location
    , accra, Ghana.
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    2

    Default

    Quote Originally Posted by vijaymk View Post
    im working on digital lock using AT89C2051 project
    what is the password for both the relays
    how to change the password
    i have not connected anything to the relay,i'm thinking about connecting LED at the output of relay how do i connect it
    plz reply as soon as possible
    The circuit as below


    you have mentioned that you have made changes to this project
    plz tell what changes hav u done in the program and the circuit
    & thanks for this project its really good one
    vj
    the code can only be known if we have hold of the firmware(software for the IC)
    to use leds for your output then u will have to connect a suitable resistor to the output port and then connected to the led of your choice then to ground


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