Hello buddies, In this post I will show you how to make a touch on-off switch using a 555 timer IC and some resistor with a video tutorial. As the project is based on a Touch to ON and OFF the devices, Touch Plates are an important part of this project. We do not need costly or fancy touch plate, I used here M6 metal washer as a touch plate, you can use the copper plate as a touch sensor. And the important feature of this circuit is that you will not get any electrical shock which we sometimes get while using the normal switches, even though we are using touch plates. But don’t touch AC side, here I used a BT136 triac and MOC3021 Optocoupler for on-off AC Appliance, you can use a mechanical relay for on-off DC and AC current without any power loss. So let’s make It…