26-04-2022, 13:28
Think I have sorted my UV over reading problems
I searched the forum and found a post 'UV sensor for WeatherDuino Pro2 weather station'
in which the same problem was occuring.
Development team member Hornychz came up with a different formula to calculate the UV Index. I have slightly modified it to this,
IndiceUV = (( RX_Data[2] * 1.074 / (UV_Transmission * 0.01) - 135 ) * 0.011);
and changed the UV transmission in the config options to 95%
So far so good, currently reading UV of 3.9 at 13:00 (met office predict a high of 4)
Any further tweaking I will do in Cumulus MX calibration settings,
Thanks, Steve
I searched the forum and found a post 'UV sensor for WeatherDuino Pro2 weather station'in which the same problem was occuring.
Development team member Hornychz came up with a different formula to calculate the UV Index. I have slightly modified it to this,
IndiceUV = (( RX_Data[2] * 1.074 / (UV_Transmission * 0.01) - 135 ) * 0.011);
and changed the UV transmission in the config options to 95%
So far so good, currently reading UV of 3.9 at 13:00 (met office predict a high of 4)
Any further tweaking I will do in Cumulus MX calibration settings,
Thanks, Steve

