How can i make a proximity detector.

Discussion in 'General Electronics Chat' started by amruth11, Jul 6, 2011.

  1. amruth11

    Thread Starter Member

    May 24, 2011
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  2. praondevou

    AAC Fanatic!

    Jul 9, 2011
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    What exactly is the trouble you are having? :confused:

    The only thing I can tell you right away is that you have to make sure to put the capacitors drawn seperately (Vcc to GND) near the 555 and also to not extend the circuit on a too big surface.
     
  3. mbxs3

    Active Member

    Oct 14, 2009
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    Do you have all of the required components shown in the schematic you referenced?
     
  4. amruth11

    Thread Starter Member

    May 24, 2011
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    HI i have all the items needed and can someone show me how to connect it on the breadboard.
     
  5. iONic

    AAC Fanatic!

    Nov 16, 2007
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    If I get a few minutes I will draw this out for you.
     
  6. iONic

    AAC Fanatic!

    Nov 16, 2007
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    [​IMG]

    I believe this circuit will be more understandable for newbies. It is not a part-by-part layout for a breadboard. For a quick breadboard intro refer to:
    Intro to Breadboarding
     
    Last edited: Jul 12, 2011
    amruth11 likes this.
  7. mbxs3

    Active Member

    Oct 14, 2009
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    Make sure you observe the correct polarity of the 10uF cap when building the circuit on your breadboard.
     
  8. amruth11

    Thread Starter Member

    May 24, 2011
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    Thx guys for all the help and can i swap the 0.02uF cap for a 0.22pF or other caps cause i am not able to get the 0.02uF in india.
     
  9. amruth11

    Thread Starter Member

    May 24, 2011
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    UR circuit is very helpful thx.
     
  10. radiohead

    Active Member

    May 28, 2009
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    you can use two .01uF in parallel for .02uF
     
  11. #12

    Expert

    Nov 30, 2010
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    R1, R2, and C2 form a timer circuit. The values are important. You really need to get this one right.
     
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