touch switch using 555 ic

  1. guclusat

    Touch Switch Using 555 IC

    How will it work? If you take a look at the datasheet of the 555 Timer IC you will be able to see #2 pin is the trigger of the IC. In this circuit it is triggered by the induced voltage of human body, the output will go high for a time determined by the 5Mohm variable Resistor & 100uF...