2 Second Timed On Switch

Discussion in 'General Electronics Chat' started by digital221, Sep 8, 2009.

  1. digital221

    Thread Starter New Member

    Sep 8, 2009
    1
    0
    Hello

    We are undergoing a project which needs a two second time delay from a push button setup. So when the push button is pushed or held down it triggers the timer creating a switch after the two seconds.

    We are also after another circuit so when a button is held down it triggers a circuit for one second and the disengadges.

    Any help would be appreciated :) Thanks
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Look for 555 monostable.
     
  3. Wendy

    Moderator

    Mar 24, 2008
    20,764
    2,534
    This is called a monostable.

    Here is how one type works....

    555 Monostable
     
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