Counting pulses

Projects Programming
14

Thanks Paul, I see your point :-).... I'm getting there I think - see below. The main issue now seems to be a very high pulse count - much too high - which I figure must be to do with bounce? Any ideas how to fix this?

#include <PinChangeInt.h>
#define PIN1 7
uint8_t latest_interrupted_pin;
uint8_t interrupt_count[20]={0}; // 20 possible arduino pins
volatile float WindSpeed = 0;
volatile int wPulse=0;
unsigned long currentTime;
unsigned long loopTime;

void windPulse()
{
  wPulse ++;
}


void setup()
{
  pinMode(PIN1, INPUT);
  digitalWrite(PIN1, HIGH);
  Serial.begin(9600);
  Serial.println("Starting...");
}

void loop()
{
  reportAnemometer();  
  delay(15000); 
}

void reportAnemometer()
{ 
  Serial.println("Measuring");
  currentTime = millis();
  loopTime=(currentTime+5000);
  Serial.print("currentTime: ");
  Serial.println(currentTime);
  Serial.print("loopTime: ");
  Serial.println(loopTime);
  while(loopTime >= currentTime)
{
  PCintPort::attachInterrupt(PIN1, &windPulse, RISING);
  currentTime = millis();
}
  PCintPort::detachInterrupt(PIN1);
  loopTime=0;
  WindSpeed = (wPulse/ 5) * 2.4; //2.4 K/h for one switch closure per second
  Serial.print("wPulse: ");
  Serial.println(wPulse);
  Serial.print("WindSpeed: ");
  Serial.println(WindSpeed);
  wPulse=0;
  WindSpeed=0;
  Serial.println("Finished");
}