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Convert SPST (on/off only 2 contacts) switch to short a pair of conductors for 3-5 seconds when “switched” on and off

Dblaise

12 volt DC  supply power for circuit/device.

on state to press button”short” circuit 

off state to press button “short” circuit

each time for 3 to 5 seconds

Thanks in advance!

Dave

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    You've not provided the all-important information (your use-case, and what circuit is being controlled), which means suggestions can't be optimal.
    I suspect you're trying to control on/off a device that has a push-button that needs to be held down for a period.

    You may as well use a cheap microcontroller for this, because it's likely some other requirement will come up once you try it. if that was the scenario, for instance, you may wish to check the device actaully did power up or shut down, and that would then need some code changes.

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  • 0

    You've not provided the all-important information (your use-case, and what circuit is being controlled), which means suggestions can't be optimal.
    I suspect you're trying to control on/off a device that has a push-button that needs to be held down for a period.

    You may as well use a cheap microcontroller for this, because it's likely some other requirement will come up once you try it. if that was the scenario, for instance, you may wish to check the device actaully did power up or shut down, and that would then need some code changes.

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