In the water level sensor schematic, the common probes connecting the underground tank and the overhead tank to +9V supply are marked ‘C’. The other probe in underground tank, which is slightly above ...

The pic below shows you the pinout of the water flow sensor. Circuit Diagram. The water flow sensor circuit diagram is shown below to interface a water flow sensor and LCD (16x2) with Arduino. If you ...

Circuit Diagram and Explanation: Below is the schematic diagram for Air Flow Detection Circuit: This circuit is a visual indication of airflow. We can detect the air presence or air flow by using this ...