Touch On Off Switch Circuit Diagram. It may be now possible to convert your existing mains 220v light switch circuit with the electronic touch switch circuit explained in this post. It helps in automatically on or off any switch by touching a device without moving from your place.
First the gnd vcc and rst pins of the 555 i e. And a relay is connected to give the supply to the load such as ligh bulb fan etc. If sufficient static voltage is detected by the plate the chip will change state.
On off any appliance using single touch plate.
The counter circuit is a cdb490 type and is capable to show at pin 12 states 1 and 0 that depends by the pulse applied of pin number 14. First the gnd vcc and rst pins of the 555 i e. This is the circuit diagram of a small touch plate controller using ic ne 555 this circuit is ideally useful for making touch operated doorbells buzzers toys etc which when touched on the touch plate operates the relay for a preset time and then turns off automatically. Pins 1 8 and 4 are connected to gnd and 5v respectively.
