12v Water Level Indicator Circuit Diagram. The following diagram shows the water level indicator circuit diagram consist of 4 probes which are placed in the overhead tank and interfaced with the port 2 of the microcontroller. This simple transistor based water level indicator circuit is very useful to indicate the water levels in a tank.
The low level and high level probes in the overhead tank are marked l and h respectively. Whenever tank gets filled we get alerts on particular levels. When there is enough water in the underground tank probes c and s are connected through water.
In fact the level of any conductive non corrosive liquids can be measured using this circuit.
The low level and high level probes in the overhead tank are marked l and h respectively. In fact the level of any conductive non corrosive liquids can be measured using this circuit. The circuit is based on 5 transistor switches. Water level controller circuit water level controller circuit.
