10+ Touch Sensor Using 555 Timer. You just need to touch the metal plate and the relay gets energised and is. How to make a touch sensor using 555 timer ic.
An explanation of how this.
10+ Touch Sensor Using 555 Timer. The 555 ic was originally used as a timer, hence the name 555 time base circuit. In this video i will show how to make a touch sensor using 555 timer ic on breadboard. You can even add a buzzer. This capacitive touch sensor switch is designed using 555 timer circuit and some common electronic components.