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kitchen timer to relay

Discussion in 'General Electronics Discussion' started by Magicman, Apr 25, 2013.

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  1. Magicman

    Magicman

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    Apr 25, 2013
    I would like to use a small kitchen timer to activate a relay but I'm not sure how to do this. I want to use the wires going to the buzzer to activate a 5 volt relay but the current is very small (uses a 1.5v button cell) and it is pulsating. Any suggestions or tips on how to do this? it has been done before but I'm not sure how.

    (this will be used for lighting)
     
    Last edited: Apr 25, 2013
  2. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

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    May 8, 2012
    Is this mains lighting? 120VAC or 240VAC?
     
  3. CocaCola

    CocaCola

    3,635
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    Apr 7, 2012
    I would likely just use a 4015 to latch the buzzer output and use that latched output to drive a transistor that latched the relay...

    Of course there are other ways to do it, but those parts are all easily found even at horribly stocked places like Radio Shack...
     
    Last edited: Apr 26, 2013
  4. Magicman

    Magicman

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    Apr 25, 2013
    I planned to run LED's off the relay after the timer hits zero it would trigger the relay and turn on the LED's
     
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