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Long pressed button, want to act as instant press

Discussion in 'Power Electronics' started by power13, Apr 18, 2020.

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  1. power13


    Oct 26, 2018

    I have a button in a circuit and I want to modify it to the following functionality.

    When I press the button I power an electromagnet. In summary the electromagnet should work for 0,5 second, not more. My problem is that if I keep pressed the button more than 0,5 second (very easy!) the electromagnet will start a second cycle. I don't want this!

    How can I overcome this problem?

    I am amateur in electronics, I just want a direction what to look for.

    Many thanks!
  2. Bluejets


    Oct 5, 2014
    555 delay on timer module from Ebay.
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