Apologies for confusion. Longer explanation: Setup 1 (WF station with solar sensor): read 'radiation' from WF station, compare it to maxSolarRad. Based on the ratio, I decide whether the sky is sunny (radiation/maxSolarRad =~1), partly cloudy (radiation/maxSolarRad =~0.5), cloudy (radiation/maxSolarRad =~0.1), etc. Setup 2 (Vantage Vue with *no* solar sensor): I read temperature from a jar (store it as 'extraTemp1') and compare it to outTemp. My result is dT=extraTemp1-outTemp. On a sunny day at noon, the expected difference is ~15 degC. I want to compare the dT against the current maxSolarRad value in order to get approximate 'radiation' value. From approximate 'radiation', I will then compare it against maxSolarRad to get sky conditions (same as in Setup1). Please note: I'm looking for *approximate* values, no absolute accuracy.
The issue is in Setup2 which doesn't want to give me the maxSolarRad. -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/e6d7ece9-4bbf-410d-9228-882277fff5c7%40googlegroups.com.
