Delay Circuit

 

If you want to implement a delay circuit in your project, this is the diagram. 
There will be a delay when power is applied to the positive to the load and when you take off power there will be a delay for the load to turn off.

This effect is brought about by the capacitor and the resistor.
When you turn off power the capacitor will still provide power to the load while the resistor is delay the discharge of the capacitor

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