Key ringer

Discussion in 'The Projects Forum' started by vimal333, Nov 10, 2011.

  1. vimal333

    Thread Starter New Member

    Nov 10, 2011
    3
    0
    Hi,
    I'm an engineering student .I'm trying to built a key ringer (which can be attached to the key as key chain so that it can be easily found out with the help of the beep sound when misplaced). I know its available in the market but wanted to make one of my own.i figured it out that it should have a RF transmitter receiver with a beeper attached tot he receiver ,but dunno really where to start.If u could give the necessary circuits that would be really helpful.
     
  2. vimal333

    Thread Starter New Member

    Nov 10, 2011
    3
    0
    anyone? :|
     
  3. shortbus

    AAC Fanatic!

    Sep 30, 2009
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    1,512
    One problem I see with something like this... How do you keep track of the "finding" device? The keys are used all the time, and if you can loose them how do you not loose the tracker that you seldom use? :)
     
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