[JT118]

Showing the flexibility of Weatherduino. Graphs from yesterday showing the Didcot DRS-5 and Davis Solar readings from wunderground graphs. There is an offset between the two, which increases as the insolation increases from a few watts /m2 at the lower end of the range to nearly twice at the upper end.  I must check against another pyranometer to see if it is the 17 year old Davis which has been in use for nearly a decade, or the new old stock Didcot needing a slight tweek on the 2K potentiometer (or calibrate the software). The DRS-5 is attached to the solar / UV board using the resistors detailed by Allycat above. The Davis is working through a 17 year old Davis Groweather system. (IMAYBOLE2 is Weatherduino; IAYRSHIR8 is Davis). They are about 1m apart.

Sunny Scotland!!

Weatherduino:

   

https://www.wunderground.com/personal-we...210/mdaily


Davis Groweather:

   

https://www.wunderground.com/personal-we...210/mdaily


Thermopile Next! Might take me another year!