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.