Vandens srauto jutiklis YF-S401

Wiring:

Red - In - Connect positive
Yellow - Out - Signal output
Black - GND - Connect negative


// reading liquid flow rate using Seeeduino and Water Flow Sensor from Seeedstudio.com
// Code adapted by Charles Gantt from PC Fan RPM code written by Crenn @thebestcasescenario.com
// http:/themakersworkbench.com http://thebestcasescenario.com http://seeedstudio.com
 
volatile int NbTopsFan; //measuring the rising edges of the signal
int Calc;                               
int hallsensor = 2;    //The pin location of the sensor
 
void rpm ()     //This is the function that the interupt calls 
{ 
  NbTopsFan++;  //This function measures the rising and falling edge of the 
 
hall effect sensors signal
} 
// The setup() method runs once, when the sketch starts
void setup() //
{ 
  pinMode(hallsensor, INPUT); //initializes digital pin 2 as an input
  Serial.begin(9600); //This is the setup function where the serial port is 
 
initialised,
  attachInterrupt(0, rpm, RISING); //and the interrupt is attached
} 
// the loop() method runs over and over again,
// as long as the Arduino has power
void loop ()    
{
  NbTopsFan = 0;   //Set NbTops to 0 ready for calculations
  sei();      //Enables interrupts
  delay (1000);   //Wait 1 second
  cli();      //Disable interrupts
  Calc = (NbTopsFan * 60 / 7.5); //(Pulse frequency x 60) / 7.5Q, = flow rate 
 
in L/hour 
  Serial.print (Calc, DEC); //Prints the number calculated above
  Serial.print (" L/hourrn"); //Prints "L/hour" and returns a  new line
}




Working range: 0.3-6L/min
Water pressure: ≤0.8MPa
Minimum rated working voltage: DC4.5 5V-24V
Maximum working current: 15 mA DC 5V
Working voltage range: DC 5-18V
Load capacity: ≤10 mA DC 5V
Operating temperature range: ≤80
Operating humidity range: 35% -90%RH (no frost)
Storage temperature: -25- + 80C
Storage humidity: 25%-95%RH
Size (L x W x H): Approx. 5.8 x 3.4 x 2.7cm / 2.28 x 1.34 x 1.06 inch
Output interface diameter: Approx. outer 7mm, inner 3mm