The freebie from Volkswagen
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 ?
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 ?
Replies
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Kaustubh KatdarePost the photo, please. -
zaverihaven't got it by the moment. but will do it soon.
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Jeffrey Arulrajthat uses LDR when light falls resistance falls and ckt is closed
in dark resistance =100Mohm and thus an open ckt -
zaveri@jeffery samuel
what is ckt ? -
Jeffrey Arulrajthe 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
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