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Dew point zero immediately after restart

Topics about the Beta trials up to Build 3043, the last build by Cumulus's founder Steve Loft. It was by this time way out of Beta but Steve wanted to keep it that way until he made a decision on his and Cumulus's future.

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jpsc
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Dew point zero immediately after restart

Post by jpsc »

I have a new Oregon Scientific WMR180 and as recommended elsewhere on here I have Cumulus MX (3043) calculating the dew point. This works apart from the first logged value after a restart which is always zero.
Zero dewpoint on restart.png
Is the first line written to the log file before the first calculation is done?
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John Cooper

Cumulus 3 on RPi3 with SSD

http://weather.mountpleasanthouse.uk

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jpsc
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Re: Dew point zero immediately after restart

Post by jpsc »

Sorry, brain fade, For dew point in the above read windchill.

The station is set as a WMR100 as recomended

The console always shows NA for windchill, but I think that's because it is very sheltered here.
John Cooper

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Re: Dew point zero immediately after restart

Post by steve »

I think this is a known issue, discussed and/or reported previously. It’s because the station doesn’t have a logger and also sends its data in separate packets for each sensor; MX calculates the wind chill before it has both wind and temperature packets. I probably forgot to add it to the list of known issues, sorry.
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jpsc
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Re: Dew point zero immediately after restart

Post by jpsc »

No problem. Hopefully this new station will require restarts much less often
John Cooper

Cumulus 3 on RPi3 with SSD

http://weather.mountpleasanthouse.uk

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