Here is the schematic I am making for a water activated switch - for a watrer level....
Any suggestions as to how to make it SUPER sensitive >>> I will have one probe contact at the bottom of an acrylic tube - the other ( a needle) set in a rubber fixture....... when the water touches the point of the needle I want the led to light up at the SLIGHTEST contact............
ANY HELP HERE ????
Any suggestions as to how to make it SUPER sensitive >>> I will have one probe contact at the bottom of an acrylic tube - the other ( a needle) set in a rubber fixture....... when the water touches the point of the needle I want the led to light up at the SLIGHTEST contact............
ANY HELP HERE ????