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Help with simple pedometer circuit

Discussion in 'General Electronics Discussion' started by ilfunx, Nov 16, 2012.

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  1. ilfunx

    ilfunx

    2
    0
    Nov 16, 2012
    Hey im doing a small project, and I am using a piezoelectric sensor to get my pulse input. The problem is that i get multiple pulses and hence my counter skips counts by 2-3 steps. I was asked to make a debouncing circuit but i have no idea what it is. Please give me any links, schematics or anything to help me out. I have attached my circuit diagram
    Thanks :):):)

    [​IMG]
     

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    Last edited by a moderator: Nov 16, 2012
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,497
    2,838
    Jan 21, 2010
    How fast can these pulses legitimately come?

    Add a monostable after U5 to ignore pulses that are too close together
     
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