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Touch Switch Circuit Description

2015-10-13 20:13  
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The article describes the touch switch circuit. The circuit is very simple, very helpful. The circuit uses a  555 timer  as a base for a touch switch. When the plate is touched the 555 timer is triggered and the output at pin 3 rise of the LED and beeper for some time. Lead time and buzzer capacitor and resistor values based on the connecting pin 6 & 7. 10 m resistor circuit caused by the pin 2 is very sensitive to touch. This is very useful principle, you have mastered it? 

Touch Switch

 

 


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