Touch Sensor Using 555 Timer Ppt. Systems become an even more appealing feature as they work to minimize the time the driver must take his her hands off. It can be used with supply voltage varying from 5 to 18 v.
Touch the sensing plate of the alarm with your finger and it starts beeping and then stops. Connect 2 pins from pin 1 pin 2 of ic as the 1st touch plate and connect 2 pins from pin 6 pin 8 of ic as the 2nd touch plate. This simple touch switch circuit by using a 555 timer ic operated as a monostable vibrator.
This is a very simple touch sensor switch that is build with the 555 timer ic.
Timer can be used in monostable mode of operation or astable mode of operation. It can be used with supply voltage varying from 5 to 18 v. Capacitive touch sensing using the properties of capacitors touch can be used as an extremely effective method of input and control. Touching it again and it goes again.
