In our project we connected the water flow sensor to a pipe.
Water flow sensor circuit diagram.
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.
If you are new to arduino and lcds you can consider reading this interfacing arduino and lcd article.
But now let us see the iot water flow meter circuit diagram connection.
I used a breadboard and once the connection was done as per the circuit diagram shown above my testing set uplooked something like this.
In water flow meter a small fan wings like rotor is placed in way of fluid.
Hence i have not used any external pull up resistors.
Circuit diagram of water flow meter working of water flow meter using arduino and yf s201.
Rate of flow of water is measured as liters per hour or cubic meters.
The water flow sensor circuit diagram is shown below to interface a water flow sensor and lcd 16x2 with arduino.
Water flow sensor consists of a plastic valve from which water can pass.
Shaft of this structure has magnetic link with hall s effect sensor.
Flow sensor photoelectric sensor.
Water flow sensors are installed at the water source or pipes to measure the rate of flow of water and calculate the amount of water flowed through the pipe.
The sensor has a magnet and hall effect sensor.
If the output valve of the pipe is closed the output of the water flow sensor is zero no pulses.
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.
The sensor works at 5v can be connected to vin of esp8266.
When rotor rotates magnetic field cuts the sensor and when it comes in perpendicular electrical.
Water switch circuit schematic.
The connection of the water flow sensor and lcd 16x2 with the arduino is given below in table format.
However one can use two metal needles injection needles to make the sensor.
Arduino water flow sensor working.
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.
In my case i connected to gpio2 i e d4.
The circuit diagram for arduino water flow sensor interface is shown in the image below.