Digital Water Level Indicator Circuit Diagram. The circuit is using three colors leds which will indicate low. Water level indicator circuit diagram.
Water tank level indicator circuit diagram simple two wire remote monitoring unit three led level display 9v battery powered circuit diagram. Before starting the design process of this circuit let s give you a brief explanation of the uln 2003 ic. We can design the water level indicator circuit using uln2003 ic as the main component.
The low level and high level probes in the overhead tank are marked l and h respectively.
Generally water stored in overhead tank is wasted due to over flow when the tank is full. Uln 2003 ic belongs to the family of uln 200x series if ics. We can design the water level indicator circuit using uln2003 ic as the main component. When the water level of container touches the wires which is connected with the base of transistor a small current start flowing through the transistor as a result led turn on.
