I am attempting to pass electric through the air to light an LED mounted on a sliding part. There is a 1 mm air gap between the sliding part and the static surface under it (plus space to mount parts if needed) and the LED only needs to light up when the sliding part is at its end position. I do not want to add any moving resistance to the sliding part.
I am thinking induction is the way to go but am not sure how to make it work. I am open to suggestions and especially grateful for schematics.
The existing circuit (that does other things) is powered by a 9v battery and has a 7805 providing 5v regulated.
I am thinking induction is the way to go but am not sure how to make it work. I am open to suggestions and especially grateful for schematics.
The existing circuit (that does other things) is powered by a 9v battery and has a 7805 providing 5v regulated.