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  1. #1
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
    Join Date
    Oct 2009
    Location
    Alma, MI
    Posts
    12,281

    Electronics Guru's.... I have a question

    I am looking for a device that operates like this:

    I want to be able to press a button and have a UV light turn on for 20 seconds.
    The light is 5 volts and draws 5 amps.

    --OR--

    I want to be able to press a button and have an indicator LED turn on for 20 seconds.
    The LED is 2.8 volts and draws 20 mA.

    There has to be something out there that will do this without breaking the bank.


    This will be in a factory setting... I am helping build a station for curing UV epoxy.
    Whatever it is I just said... I could be wrong.

  2. #2
    RC Qualifier
    Join Date
    Mar 2011
    Posts
    661
    You will want to build a timer circuit kinda like this one:

    http://extreme-fire.com/ScratchPad/T...stTimer-01.gif

    You will need different resistance and capacitance values as that circuits is designed to create 3 round burst fire on automatic electric airsoft guns so it only runs for a fraction of a second.

  3. #3
    RC Champion
    Join Date
    Nov 2010
    Location
    United Kingdom of England land.
    Posts
    1,778
    I don't know if you can use an inductor.
    Guide books aren't part of the packaging.

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