555 timer

Discussion in 'The Projects Forum' started by berries, Jun 20, 2010.

  1. berries

    Thread Starter New Member

    Jun 20, 2010
    2
    0
    Hello,

    i am supposed to build a circuit using a 555 timer... i just wanted to ask which capacitor and resistor should i use to have an interval of 30 secs before it changes the output? :)

    thanks!
     
  2. bertus

    Administrator

    Apr 5, 2008
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  3. berries

    Thread Starter New Member

    Jun 20, 2010
    2
    0
    thank you...

    sorry for bothering you...

    :)
     
  4. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    We are here to help, so you are not bothering me.
    In the datasheets you will also find a lot of information.
    I also added the 555 application note.

    Bertus
     
    Last edited: Jun 20, 2010
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