Project_11100_Arduino_flow_wind

#include <SoftwareSerial.h>

#define windsensor     A0
#define flowsensor      2
#define ttlRxPin        3
#define ttlTxPin        4

SoftwareSerial softSerial(ttlRxPin, ttlTxPin);

unsigned long currentTime;
unsigned long pulse_freq;
unsigned long lastTime;
float outputValue = 0;
int sensorValue = 0;
double flow;
float X;
int Y;

void pulse () {
  pulse_freq++;
}

void setup() {
  Serial.begin(9600);
  softSerial.begin(9600);
  pinMode(flowsensor, INPUT);
  pinMode(windsensor, INPUT);
  attachInterrupt(0, pulse, RISING);
  currentTime = millis();
  lastTime = currentTime;
}

void loop () {
  sensorValue = analogRead(windsensor);
  outputValue = map(sensorValue, 0, 512, 0, 56);
  currentTime = millis();
  if (currentTime >= (lastTime + 1000))
  {
    lastTime = currentTime;
    flow = (pulse_freq / 7.5);
    pulse_freq = 0;
    Serial.print("Flow Rate: ");
    Serial.print(flow);
    Serial.print(" L/Min \t\t\t");
    Serial.print("Wind Speed: ");
    Serial.print(outputValue);
    Serial.println(" m/s");
    Serial.println("****************************************");
    X = flow;
    Y = outputValue;
    softSerial.print(X, 2);
    softSerial.print("X");
    softSerial.print(Y);
    softSerial.print("Y");
    softSerial.print("\n");
  }
}