07-11-2015, 05:32
Hi,
Just using what is in the code now and no modifications, could a add/subtract calibration factor be used in cumulus? I wrote a quick arduino program to compare two UVM-30A sensors and simply displaying each individual output and the difference on the serial monitor. This was so i could simply test a few different cover mediums and see the attenuation. My first test was at 10am on a warm spring day and my analogue value raw from the UVM was 250, UV index of 11+. The local forecast was for 12, so pretty close.
However my concern is when it does hit summer and we start getting UV index of 14 and 15 every day where does this leave my readings? If i attenuated my uv with a cover that reduced it by a factor of 3 and "added" 3 in cumulus would this give me a pretty fair observation? I'm not too concerned for the lower end of the spectrum.
Just using what is in the code now and no modifications, could a add/subtract calibration factor be used in cumulus? I wrote a quick arduino program to compare two UVM-30A sensors and simply displaying each individual output and the difference on the serial monitor. This was so i could simply test a few different cover mediums and see the attenuation. My first test was at 10am on a warm spring day and my analogue value raw from the UVM was 250, UV index of 11+. The local forecast was for 12, so pretty close.
However my concern is when it does hit summer and we start getting UV index of 14 and 15 every day where does this leave my readings? If i attenuated my uv with a cover that reduced it by a factor of 3 and "added" 3 in cumulus would this give me a pretty fair observation? I'm not too concerned for the lower end of the spectrum.