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.

Circuit Diagram. The water flow sensor circuit diagram is shown below to interface a water flow sensor and LCD (16x2) with Arduino. If you are new to Arduino and LCDs, you can consider reading this ...