Arduino Water Level Sensor Circuit – Connection Diagram Now that we completely understand how the water level sensor works, we can connect all the required wires to the Arduino UNO board, and in this ...

Follow the circuit diagram to connect the water sensor, LED, and Arduino. Upload the Code: Open the Arduino IDE. Copy and paste the provided code into the IDE. Select the appropriate board and port.

Arduino Water Flow Sensor Working In our project, we connected the water flow sensor to a pipe. If the output valve of the pipe is closed, the output of the water flow sensor is zero (No pulses).