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4011 CMOS touch switch - problem with long touch

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tkb5416

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4011 CMOS touch switch

I am using 4011 CMOS as touch switch to control my microcontroller that is linked to motor driver L293D as on/off.

When I touch for the first second, the motor will activate for 2seconds. It works fine if I am touching it for more than 2 seconds.Let's say,if I touch for 3seconds, then the motor will activate for 3 seconds.

Do u have any ideas what is the main cause of this problem? If do, can u provide me the solution?

Thank you.
 

You may need to use J-K flip flop with J and K are connected together.
When you touch the input of the J-K flip flop the motor will be activated and when you touch it again it will be deactivated.
 

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