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Touch Switch



Simple Touch-Sensor Circuit
The human body can affect the performance of an electronic circuit, this is because the human body has an electrically charged ion. Although very small, electrically charged ions in the human body can be used to create a series of sensors.


Touch Sensor IC Circuit scheme of 555


This touch sensor series suitable for making burglar resistant circuit by connecting a series of touch sensor input with a door handle or trellis which is made of metal or any other part of your House that is about to be touched by the thief at the time tried to get into your home. This series utilizes a series of mono stable IC 555 as barrier active load circuit. The combination of C1 and VR1 as determinant of the length/duration will be active at the moment wreath touch.

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