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Last Updated on: Friday, November 17, 2017 06:31 AM

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More  More  Capacitance Touch Switches

5V CAPACITANCE TOUCH ACTIVATED MOMENTARY SWITCH
 

This circuit is discussed in more detail in the section on Capacitance Proximity Switch Technology. The circuit is powered from a standard +5v supply. It has both a source and sink output that change state whenever a metal button connected to the circuit is touched. An earth ground reference is required.

Click on Drawing Below to view PDF version of Schematic

Circuit Touch Activate Switch designed by David A. Johnson, P.E. (July 8, 2000)

More  Capacitance Touch Switches

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