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Replies

  • vickykumar

    Member • Sep 4, 2009

    anshulanshul9
    I am planning to make Automatic sliding doors as my 3rd year project(like we use in malls) but can't get any info,circuits on net.Could you please tell me from where to start and specify the sensors to be used

    at first sorry,if u dont mind ,,,
    i want to know something about u....
    at first ,,
    I M at B.I.T
    where r u??????
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  • anshulanshul9

    Member • Sep 4, 2009

    I am at NMIMS,mumbai
    bt y?
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  • Kaustubh Katdare

    Administrator • Sep 4, 2009

    Usage of SMS text is strictly prohibited on CrazyEngineers.
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  • anshulanshul9

    Member • Sep 4, 2009

    no one has any idea?
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  • Differential

    Member • Sep 4, 2009

    Go to malls or wherever you find such doors. See the product and its make. Find their info on internet. List down the material needed, gather the requirements, clear a picture of how your product should look, what it should do. Get back to us for any questions.
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  • anshulanshul9

    Member • Sep 4, 2009

    i had already seen it and know what it should do but can't get any info on net 😔
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  • silenthorde

    Member • Sep 4, 2009

    Use a laser and a LDR pair some distance ahead of the door. As soon as the laser gets tripped fire a pulse to a servomotor through a relay.IT should be simple. Look for Burlar alarm circuits or Intrusion detction circuits on the internet. For the laser and photodetctor part. That should be pretty easy I guess.
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  • nirave

    Member • Sep 5, 2009

    did u try about.com and howstuffworks.com? as far as the sensors are concerned u can use infrared detectors as in motion sensors... u can also use piezo-electric pressure sensors and place them right in front of the door. as soon the person stands on the mat the sensor reacts and u get a current which can acuate the door...
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  • anshulanshul9

    Member • Apr 16, 2010

    Thanks for your replies.
    I have got the basic idea...but still confused on circuit part.
    I am not getting a proper circuit for driving a bidierectional motor with 8051 microcontroller!
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  • medeepak

    Member • Apr 17, 2010

    L293D is a bidirectional motor driver IC
    google for it to know more
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  • anshulanshul9

    Member • Apr 17, 2010

    i came to know about it some hours back only and was googling about this ic when i received your post 😀
    Anyways,thanks a lot!
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