Measuring wind run from anemometer, similar to odometer

Projects General Guidance
21

@wvmarle
You are perfectly wright. Summing up the A/D values into an unsgined long has a greater capaciy. 86400 seconds * 1023 equals 88 387 200 and that is safe.

22

I'd actually store the values *100 so you don't lose too much accuracy in case of very low wind speeds.

WaWa's code from #11 would then become:

int rawValue;
float currentWindSpeed, windRun;
unsigned long totalWindSpeed;

void loop() {
  if (onesecondhaspassed) {
    rawValue = analogRead(A0);
    currentWindSpeed = rawValue * 17.6; // in dm/h
    totalWindSpeed += rawValue; // add each new value
  }
  if (midnight) {
    windRun = totalWindSpeed / 2046000; // in km
    totalWindSpeed = 0; // reset
  }
}