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need circuit to generate pulse.

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Discussion in 'General Electronics Discussion' started by komal, Mar 9, 2011.

  1. Mar 9, 2011 #1
    komal

    komal

    5
    0
    Mar 9, 2011
    Hi...
    I am doing a project n I need a circuit for d following..
    M using IR LEDs and photo detector..
    i want them to remain ON only for few secs..
    say 10s..
    which circuit will be the simplest and the best?
     
  2. Mar 9, 2011 #2
    rob_croxford

    rob_croxford

    262
    0
    Aug 3, 2010
    there is a thread somewhere on 555 timers and their applications search for that
     
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