This circuit measures or detects a required level of water liquid or any fluid.
Water level sensor arduino circuit diagram.
Arduino water level indicator circuit.
In this tutorial we are going to make a simple water level sensor or liquid level detector circuit.
The esp 32 is powered with 5 v from the usb port and has a 3 3v regulator on board.
One output gpio pin is directly connected to the water level sensor and sends a 3 3 v signal to the sensor with a duration of just 200 milliseconds.
Transmitter circuit transmitter circuit is shown in the figure below fig1 in this circuit an ultrasonic sensor is connected to pin d9 and d10 pin of arduino.
As shown in the water level controller circuit given below ultrasonic sensor module s trigger and echo pins are directly connected to pin 10 and 11 of arduino a 16x2 lcd is connected with arduino in 4 bit mode control pin rs rw and en are directly connected to arduino pin 7 gnd and 6.
Circuit diagram and explanation.
In this project two circuits are used.