How to set timer in this code that the device will automatically off after 3 seconds in case of manual push

Need Help With My Project
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[Unformatted code removed by moderator]

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Please edit your post and add triple backticks ( ``` ) before and after your sketch.

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Iā€™d also shorten your topic title, and explain in much more detail - within the body of your post - exactly what it is that you are trying to achieve.

Pete.

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