The water level indicator is defined as a system that gets information about the water level in tanks. By using the water level indicator we can overcome the overflow of water from the tankers.

. By using the water level indicator we can overcome the overflow of water from the tankers.

Water Level Indicator

The principle of this circuit is very easy to understand and it is very practical. I used IC ULN-2003 in this circuit. If the water level rises in the tank, then the water comes into contact with probes which are from IC Pin 1 to 7 and thus the pin 7 through 1 high sequentially. Hence the equivalent output pins 10 to 16 will go low one after another and the LEDs from 1 to 7 will go in the order. If the water level is at the final probe Pin 7 then the sound is produced by the piezo-buzzer.

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