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Need Help w/ a simple project

Discussion in 'General Electronics Discussion' started by DreamDragon, May 2, 2017.

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  1. DreamDragon

    DreamDragon

    4
    0
    May 2, 2017
    Hello all,

    Firstly, new to anything of electric components so forgive me. But, want to work on a project and hoping for help in identifying what I need. Very simple concept...

    • I want to incase a low light LED (used just as a indicator) in a thin metal housing.
    • LED is powered by 2-3 coin batteries(incased in housing as well).
    • When metal housing is touched, LED comes on. Released it goes out.
    • Will be trigger 20-30 times a day w/ battery life expectancy 2 months or more if possible.
    Is this doable? ANY help would be GREATLY appreciated...

    Robert
     
  2. AnalogKid

    AnalogKid

    2,482
    715
    Jun 10, 2015
    How big a box? 100% exposed metal on all surfaces, or only certain areas?

    ak
     
  3. Don Perry

    Don Perry

    40
    2
    Apr 26, 2017
    This is the easiest way to get started.

    Here is a little touch circuit. It's not exactly what you need but it will get you started.

    Touch Circuit.png
     
  4. DreamDragon

    DreamDragon

    4
    0
    May 2, 2017
    Hi Analog,

    Thanks for replying... metal is only on the top. housing is 3x3 in by 1 in tall. Size of a "post it" pack.
     
  5. DreamDragon

    DreamDragon

    4
    0
    May 2, 2017
    But, light is triggered when any metal area is touched...
     
  6. DreamDragon

    DreamDragon

    4
    0
    May 2, 2017
    Thanks Don.
     
  7. Ferdinand Cruz

    Ferdinand Cruz

    2
    0
    Jun 5, 2017
    is it a simple circuit? its not very complicated though and is very doable.
     
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