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Dave's Circuits
Circuits designed by David Johnson, P.E.

Master Category List - Dave's Circuits
 Last Updated on: Friday, July 18, 2008 11:33 AM

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

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

Capacitance Touch Switches

Master Schematic Category List - David A. Johnson, P.E.
 

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