WATER FLOW SENSOR:

Water flow sensor consists of a plastic valve body, a water rotor, and a hall-effect sensor. When water flows through the rotor, rotor rolls. Its speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse signal. This one is suitable to detect flow in water dispenser or coffee machine. We have a comprehensive line of water flow sensors in different diameters. Check them out to find the one that meets your need most.

WORKING PRINCIPLE:

This sensor sits in line with the water line and contains a pinwheel sensor to measure how much water has moved through it. There is an integrated magnetic Hall-Effect sensor that outputs an electrical pulse with every revolution. The “YFS201 Hall Effect Water Flow Sensor” comes with three wires: Red/VCC (5-24V DC Input), Black/GND (0V) and Yellow/OUT (Pulse Output). By counting the pulses from the output of the sensor, we can easily calculate the water flow rate (in litre/hour – L/hr) using a suitable conversion formula.
The Arduino flow meter works on the principle of the Hall Effect. According to which, a voltage difference is induced in a conductor transverse to the electric current and the magnetic field perpendicular to it. Here, the Hall Effect is utilized in the flow meter using a small fan/propeller shaped rotor which is placed in the path of the liquid flowing.
The liquid pushes against the fins of the rotor, causing it to rotate. The shaft of the rotor is connected to a Hall Effect sensor. It is an arrangement of a current flowing coil and a magnet connected to the shaft of the rotor, thus a voltage/pulse is induced as this rotor rotates. In this flow meter, for every liter of liquid passing through it per minute, it outputs about 4.5 pulses. This is due to the changing magnetic field caused by the magnet attached to the rotor shaft.

USES OF THE SENSOR:

  • To measure liquid flowing through a pipe or container.
  • Wanted to create a control system based on the water flow rate or quantity .
  • While gardening, to measure the amount of water used to water your plants.
  • To prevent wastage of water.

SPECIFICATIONS:

  • Mini. Woking Voltage: DC 4.5V
  • Max. Working Current: 15mA (DC 5V)
  • Working Voltage: DC 5V~24V
  • Flow Rate Range: 1~30L/min
  • Load Capacity: ≤10mA (DC 5V)
  • Operating Temperature: ≤80℃
  • Liquid Temperature: ≤120℃
  • Operating Humidity: 35%~90%RH
  • Water Pressure: ≤1.75MPa
  • Storage Temperature: -25~+ 80℃
  • Storage Humidity: 25%~95%RH

PICTURES:

SIMPLE PROJECT:

Materials required:

  • Arduino
  • Water Flow Sensor
  • Breadboard
  • Jumper wires

Connection with Arduino:

CODE:


 

SERIAL MONITOR:

VIDEO:

OTHER IDEAS:

  • In making of smart irrigation system.
  • In making of hydropower working electric water heater.