Calculate windchill and dew point

Using Arduino Programming Questions
1

I have a weather station using Arduino, where I get basic data (temperature, humidity, pressure, wind) and I need to calculate the dew point and windchill. Does anyone have a functional equation?

2

Hope this helps

float windChillFactor(float temperature, float windspeed){
    float windindex = 35.74f + 0.6215f * temperature;
    windindex -= 35.75f * std::pow(windspeed, 0.16f);
    windindex += 0.4275f * temperature * std::pow(windspeed, 0.16f);
    return windindex;
}

Found with an internet search. Still looking for the other one. Let us know what you find.

3

What units are temperature and windspeed in?

4

Not trying to hihack this thread, but could explain the "std:: " proceeding the pow(x,y) function?

I couldn't find a google reference. I'm guessing its a syntax so a normally required "include" is not needed but don't really know.

5

I just found that formula on the internet and have not used it yet. My weather station produces all its readings as floats.

6

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.