CrazyEngineers
CrazyEngineers

  • The freebie from Volkswagen

    zaveri

    zaveri

    @zaveri-5TD6Sk
    Updated: Oct 1, 2024
    Views: 950
    Today morning , THE HINDU featured a special advertisement section for volkswagen cars.

    Attached to the paper was , a small rectangular, device, which on pressing would cause vibrations, the same kind which one would experience while a driving a volkswagen.

    I took this thing apart , only to find a motherboard, with two batteries and a circular shaped device connected to the batteries.

    now what do you think this device was ? piezo-electric crystal ?
    0
    Replies
Howdy guest!
Dear guest, you must be logged-in to participate on CrazyEngineers. We would love to have you as a member of our community. Consider creating an account or login.
Replies

  • Kaustubh Katdare

    Administrator • Sep 11, 2012

    Post the photo, please.
    Are you sure? This action cannot be undone.
    Cancel

  • zaveri

    Member • Sep 11, 2012

    haven't got it by the moment. but will do it soon.
    Are you sure? This action cannot be undone.
    Cancel

  • Jeffrey Arulraj

    Member • Sep 16, 2012

    that uses LDR when light falls resistance falls and ckt is closed

    in dark resistance =100Mohm and thus an open ckt
    Are you sure? This action cannot be undone.
    Cancel

  • zaveri

    Member • Sep 17, 2012

    @jeffery samuel

    what is ckt ?
    Are you sure? This action cannot be undone.
    Cancel

  • Jeffrey Arulraj

    Member • Sep 17, 2012

    the battery is connected to a vibrator which could be any thing i am yet to study it in detail

    but the series connection is connected through an LDR

    the set up is this battery+ve---> LDR---> some vibrator block---> battery -ve

    hope this is useful

    i am yet to study it so I have limited knowledge of detailed circuit
    Are you sure? This action cannot be undone.
    Cancel
Home Channels Search Login Register