in water level indicator,why to use certain resistors?
how do we find what amount of resistance we need for that?
Please mention which Water indicator circuit, you are asking about. Since there are two project of the same kind, pls be more precise. We can help you out then.
It is difficult to explain you without knowing the whole story, you have to explain what kind of water level indicator you have to create, because as the usage of indicator is changed all the electronically equipment changed, hope you understand what I mean. Awaiting for your reply.