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Connect 12V relay to LED

Discussion in 'General Electronics Discussion' started by asifpeechamgod, Sep 7, 2017.

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  1. asifpeechamgod

    asifpeechamgod

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    Sep 7, 2017
    How to connect 12V realy to a LED using resistor
     
  2. Robert_fay

    Robert_fay

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    Jun 15, 2017
  3. duke37

    duke37

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    Jan 9, 2011
    If you have a mechanical switch, you do not need a relay.
     
  4. Robert_fay

    Robert_fay

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    Jun 15, 2017
    True, But you need something to run control your relay. This switch could be replaced with a microcontroller, The relay could be run off a different circuit etc.
     
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