windMeter.ino

int windPin = D0;
int powerPin = D1;
int numOfAverageValues = 5;

void setup() {
    setupWind();
}

void setupWind() {
    pinMode(powerPin, OUTPUT);
    digitalWrite(powerPin, HIGH);
    pinMode(windPin, INPUT_PULLDOWN);
}

void loop() {
    bool cellReady = Cellular.ready();
    bool cloudReady = Particle.connected();
    if (cellReady) {
      loopWind();
    }
    delay(1000);
}

void loopWind() {
  getAverage();
  delay(10000);
  System.sleep(SLEEP_MODE_DEEP, 30*60);
}

void getAverage() {
  int nonZero = numOfAverageValues;
  int zero = numOfAverageValues;
  unsigned long value;
  unsigned long values[numOfAverageValues];
  while (true) {
    value = getWind();
    if (value==0) {
        zero--;
    } else {
        nonZero--;
        values[nonZero] = value;
    }

    if (zero==0) {
      publishWind(0);
      break;
    }
    if (nonZero==0) {
      unsigned long sum = 0;
      for (int i = 0; i < numOfAverageValues; i++) {
        sum += values[i];
      }
      publishWind(sum/numOfAverageValues);
      break;
    }
    delay(500);
  }
}

void publishWind(unsigned long speed) {
  char publishString[40];
  sprintf(publishString,"%u", speed);
  Serial.printlnf("Publishing speed: %s", publishString);
  Particle.publish("windSpeed", publishString, PRIVATE);
}

unsigned long getWind() {
    unsigned long duration = pulseIn(windPin, LOW);
    Serial.printlnf("%d us", duration);
    if (duration < 10) {
      duration = 0;
    }
    return duration;
}