Touch Switch Circuit Using 555 Timer. Basically in this circuit we will have a led which turns on when we touch a pin of timer. This is a very simple touch sensor switch that is build with the 555 timer ic.
If you re new to 555 ic please take the time to read our beginner s guide on 555 ic. This simple touch switch is developed by using 555 timer ic operated as a monostable vibrator. In this project guide we re building a touch switch circuit using ne 555 ic.
In circuit uses an integrated circuit timer lm555 or ne555.
When we will touch both the wires together with our finger the led will turn on and it will turn off immediately when the finger is removed. This simple touch switch is developed by using 555 timer ic operated as a monostable vibrator. A touch switch is basically a simple switching circuit activated upon a touch. You just need to touch the metal plate and the relay gets energised and is kept in this state for about 100 seconds then is released.
