David Schulz <[email protected]> writes: > I recently upgrade my venerable WH1080 sensor to the WH65B sensor array. > I'm grabbing data directly using the SDR driver. Just having trouble > nailing down the correct sensor mapping for the lux values being reported. > > I'm looking at this post - > https://groups.google.com/g/weewx-user/c/7ouux0bviRE/m/u46MyYN5BQAJ, which > lead me to believe there should be a field called illuminance which maps to > the illuminance group which sets the units to be lux. It sounds like there > might have been a column called luminosity in the schema at one point but > it was replaced with illuminance?
First, read this: https://github.com/weewx/weewx/wiki/Watts-and-lux > My database is using the extended schema but is still showing only a > luminosity column and has no illuminance column. I've just run a clean > install on a spare Pi and I'm seeing the same column names as my main > system. > > Contemplating whether I add a new column called illuminance or assign the > existing luminosity column to the illuminance group so that correct units > get applied. I'd appreciate any recommendations on which is the safer path > regarding things working cleanly with future upgrades. I am not at all clear on the details of those sensors. illuminance has units lux; it is human-perceived light falling per area. Luminosity is a radiometric unit (power) rather than photometric (human perception). And, it's total power from a source, which doesn't make any sense for a weather station: https://en.wikipedia.org/wiki/Luminosity The two things weather stations often measure are: illuminance in lux, super roughly 200 000 in full sun irradiance in W/m^2, roughly 1000 in full sun So the big questions are What is the measurement showing up in your luminosity column? What is being measured, with what units? What kinds of numbers do you see when the sun shines directly on the weather station, blue sky? Is something continuing to put data in that column? Why? Is "luminosity" being used in some code as a synonym (incorrectly) for "irradiance"? and then when you understand those answers you can figure out what to do, or post back with them. -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/rmi7cyvfo1m.fsf%40s1.lexort.com.
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