heat index widget added to dashboard
heat index widget added to dashboard

The Heatindex widget calculates this data from both temperature and humidity feeds as follows;

* Less than 50°F - as there is no calculations carried out below this temperature, the widget gives the option to display the 'actual' current temperature, or --°F.
* More than 50°F and less than 80°F - the calculation use the formula by R. Steadman.
* 80°F and over, the calculation formula by Rothfusz L is used.

There is an option to disable the calculations for more than 50°F and less than 80°F, so the widget only begins to calculate when the temperature is at least 80°F (true heatindex).

 The same calculations apply in either Fahrenheit or Celsius.

emoncms/dashboard,emoncms/dashboard