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cellphone vibration detection?

Discussion in 'Electronic Basics' started by Tom Horsley, Feb 21, 2007.

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  1. Tom Horsley

    Tom Horsley Guest

    No, I'm not looking to set off bombs, but I was wondering if I could
    redesign this ridiculous thing:

    http://home.att.net/~Tom.Horsley/markII/markII.html

    right now, I watch for the display lighting up so I can get notified
    there is an incoming call (and judging from the mail I get, there
    is apparently a fair sized demand for a product like this, but I still
    haven't seen a commercial version).

    I see cheap little vibration sensor "chips" out there. What are the odds
    one could be used to detect the kind of vibration a vibrating cellphone
    produces, but ignore most other normal activities (like picking it up
    and putting it down?).

    Just curious if I could continue the rube goldberg design philosophy
    with a mark III detector someday?
     
  2. Try digital paging?
     
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