Water Level Indicator Circuit Diagram. Uln 2003 ic belongs to the family of uln 200x series if ics. The water level indicator circuit is defined as a system that gets information about the water level in tanks.
The water level indicator circuit utilizes a 555 timer clock in astable mode with r1 22 kω r2 570 ω and c1 1uf 25v. When there is enough water in the underground tank probes c and s are connected through water. The circuit is very easy to build and contains only three pnp transistors and some other components.
The recurrence frequency of the given astable circuit is around 62 hz.
Whenever tank gets filled we get alerts on particular levels. The circuit is very easy to build and contains only three pnp transistors and some other components. This is a simple water level indicator circuit or water level sensor circuit. The two probes which are appeared in the circuit ought to be kept at a significant level for the water.
