Water Flow Sensor Circuit Diagram

If you are new to arduino and lcds you can consider reading this interfacing arduino and lcd article.

Water flow sensor circuit diagram.

The circuit diagram for arduino water flow sensor interface is shown in the image below. Flow sensor photoelectric sensor. The sensor has a magnet and hall effect sensor. If we take a look at the sides of the water flow sensor we can witness a plastic turbine in the path of water flow.

As clearly indicated in the circuit diagram two closely spaced metal rings are used as the water sensor mechanism. The water flow sensor circuit diagram is shown below to interface a water flow sensor and lcd 16x2 with arduino. A round shaped magnet is embedded at the center of the turbine and the hall effect sensor is sealed and protected from moisture and placed above the magnet. However one can use two metal needles injection needles to make the sensor.

In our project we connected the water flow sensor to a pipe. Internally the output pin of the hall effect sensor is pulled high on the circuit board itself as you can see in the breakdown image show above. The pic below shows you the pinout of the water flow sensor. I used a breadboard and once the connection was done as per the circuit diagram shown above my testing set uplooked something like this.

Flow diagrams are examples of concept diagrams used in many types of risk assessment to assist in identifying and understanding hazards particularly exposures to hazards hazard sources. Water switch circuit schematic. Hence i have not used any external pull up resistors.