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Thread: help with DPDT switch

  1. #1

    Default help with DPDT switch

    I have searched and searched the forums over the last few days and can't find a wiring diagram for a latching DPDT switch .

    I am trying to wire it up with out a soundboard
    It is a direct drive

    here is the diagram that i am using of how i have it wired
    the problem is i am not sure that i wired it right the led is very dimm only about 2" of blade lit up .
    p4 led
    3.3 5w resistor
    2AA battery pack

    switch schematic.jpg
    Last edited by jin starkiller; 03-01-2011 at 12:02 PM.

  2. #2

    Default

    Hrm, what kind of batteries? If those are regular alkalines, you're only giving it 3V. The resistor you've chosen would work for a 4AA alkaline pack.
    We all have to start somewhere. The journey is all the more impressive by our humble beginnings.

    http://led.linear1.org/1led.wiz for the lazy man's resistor calculator!
    http://forums.thecustomsabershop.com...e-to-Ohm-s-Law for getting resistor values the right way!

  3. #3
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    Default

    Ok, what type of batteries are you using in the battery holder? If you're using alkalines, then you don't have enough voltage going to the main LED.

    And what color P4 are you using?


    Edit:
    I should have refreshed the page before I hit submit.
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  4. #4

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    blue p4 led

    ok so the resistor for the led is whats wrong then i need this one is this correct

    http://www.thecustomsabershop.com/22...stor--P11.aspx

  5. #5
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    Default

    I just replied in your other thread but Ill say it here as well...

    the p4blue takes 1ohm 2W @ 3.6/3.7v.. use the resistor caculator in the store(front page) located on the left side of the screen towards the bottom, I really hope this helps
    Last edited by dgdve; 03-02-2011 at 07:11 AM.
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  6. #6
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    If you're using alkalines, for 3V, then you don't have enough voltage to properly light the LED. PERIOD

    Using a smaller value resistor won't help.
    In order to see the Light,
    you must sometimes risk the Dark.
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  7. #7

    Default

    ok so i just need to go for the AAA battery option then ..is that correct

    thanx

  8. #8
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    If you're using alkalines, yes.

    Don't forget to recalculate for the proper resistor value for both LEDs.
    In order to see the Light,
    you must sometimes risk the Dark.
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  9. #9

    Default

    thanx ....got it now ....thanks for all the help

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