Water level indicator using LED

Discussion in 'The Projects Forum' started by thayou, Jul 6, 2010.

  1. thayou

    Thread Starter New Member

    Jul 6, 2010
    1
    0
    Hi

    I would like to do a project on water level indicator using LED. But I did not have the full description and methods. So i need a full description or any other video files.

    Please let me know the details about it

    Advance thanks for your help

    Thayou
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
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    We have no details either. Can you tell us more about your idea of how the indicator should work?
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,732
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    If you are thinking sensors on of the popular methods uses ping pongs, where a light is shined through a simple acrylic tube with a photosensor of some kind on the other side of the tube. If the ping pong interrupts the light beam you know where the water level is. Usually used for sensing low and high levels in a tank.
     
  4. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,091
    386
    Then there are level sensors that use probes at that penetrate the tank at different levels with LEDs that show which probes are under water. There have been several posts on level sensing here in AAC, mostly using 4066's.
     
  5. DumboFixer

    Active Member

    Feb 10, 2009
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    34
    The magazine "Everyday and Practical Electronics" recently did a water level project based on air pressure in a pipe using a normal air pressure sensor.

    I'm think of building one of these myself.
     
  6. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    You can put the led in the tank at the area where you want the indication to be.

    When the LED goes out, you know the water got there. ;)
     
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