Simple Code Lock

Discussion in 'General Electronics Chat' started by dan1986, Sep 20, 2004.

  1. dan1986

    Thread Starter New Member

    Sep 20, 2004
    3
    0
  2. Keshav

    New Member

    Sep 20, 2004
    1
    0
    Hello,
    I did not understand your point.Any how D-flip flop's input is connected to low.So last flipflop's o/p will be lo itself.Which will turn off transistor and relay.
    So try connecting D1 to a high Vg.
     
  3. dan1986

    Thread Starter New Member

    Sep 20, 2004
    3
    0
    U wot?????????????? that made no sense to me, i am stupid... write it in english plz ;) ;) ;) :eek: :eek:
     
  4. electrowiz

    New Member

    Sep 23, 2004
    1
    0
    the first reply was wrong, sending d flip flop lo will send signal high, causing lock to open!!!!!!!!!!!!!!!!!!!!!
     
  5. rossi

    New Member

    Sep 4, 2007
    3
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    Do this circuit really work?
    Why do my circuit does not work?
     
  6. haylin1217

    New Member

    Sep 26, 2008
    2
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    is this circuit really working.. kindly reply pls..

    and i am trying to introduce on the circuit.. delay for the activation of relay and resetting.. but I don't know where to start.. can someone help me with that.. i would be very thankful.. thanks..

    what kind of timing circuit do I need to use.. astable or monostable?

    thanks
     
  7. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
    Hello, Haylin. Welcome to AAC.

    Please note this thread is a very old one, and a fairly random procession of unconnected thoughts. Most of the participants of this thread have not been around for years, and are not likely to see your question.

    It would be far better for you to begin a new thread using the "new thread" button. Be sure to read these first:
    http://forum.allaboutcircuits.com/announcement.php?f=5&a=3
    and
    http://forum.allaboutcircuits.com/showthread.php?t=2999

    Remember: the more detail you provide, the more help we can give.

    I hope you have a fruitful stay.
     
  8. jaspreet

    New Member

    Dec 31, 2008
    3
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    i also want to make this project,can u post all the details of this project or any suitable links please.....but in english.
     
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