Good Afternoon All,
I probably have a silly question, but it is driving me mad......
After having spent many hours working through:
1) Setting up a Raspberry Pi with WeeWx
2) Installing and Configuring Matthew Wall's brilliant Interceptor to read
from an Aercus Weather Ranger AKA HP100
3) Configuring uploads to Wunderground (WU)
All is good except one problem........the wind speeds.
When not connected to Weewx the Aercus uploads directly to WU and the
speeds are correct, that is they tally with the display speeds km/h to
km/h. However, with Weewx in the loop the speeds logged and published
appear to be m/s, suggesting that Weewx is expecting m/s and W/U km/h, and
thus when WeeWx publishes, WU believes it is receiving km/h and publishes
accordingly. Thus, the windspeeds are out by a factor of about 3.6
I have tried, following the brilliant User Guide:
1) Changing the database units - METRIC and METRICWX
2) Placing expressions such as:
windSpeed = WindSpeed * 3.6
wind = wind * 3.6
wind_speed = wind_speed * 3.6
in the StdCalibrate section
But I cannot for the life of me figure this one out by myself - and I have
tried.
As an example from the log (sanitized):
Aug 17 12:44:21 weewx weewx[2932]: interceptor: ServerThread: GET:
ID=XXXX&PASSWORD=XXXX&intemp=21.0&outtemp=20.4&dewpoint=11.4&windchill=20.4&inhumi=52&outhumi=56&windspeed=0.5&windgust=1.1&winddir=101&absbaro=1008.0&relbaro=1020.9&rainrate=0.0&dailyrain=0.0&weeklyrain=15.0&monthlyrain=27.3&yearlyrain=45.3&light=63371.5&UV=2017&dateutc=2018-8-17%2012:44:21&softwaretype=WeatherRanger%20V2.4.6&action=updateraw&realtime=1&rtfreq=5
Aug 17 12:44:21 weewx weewx[2932]: interceptor: MainThread: raw data:
ID=XXXX&PASSWORD=XXXX&intemp=21.0&outtemp=20.4&dewpoint=11.4&windchill=20.4&inhumi=52&outhumi=56&windspeed=0.5&windgust=1.1&winddir=101&absbaro=1008.0&relbaro=1020.9&rainrate=0.0&dailyrain=0.0&weeklyrain=15.0&monthlyrain=27.3&yearlyrain=45.3&light=63371.5&UV=2017&dateutc=2018-8-17%2012:44:21&softwaretype=WeatherRanger%20V2.4.6&action=updateraw&realtime=1&rtfreq=5
When that is sent through Weewx, the windspeed reports as 0.5 km/h, when it
is in fact 0.5 m/s. When sent directly to Wunderground it reports as
1.8km/h which tallies with the display unit and the wind outside!!
I apologize in advance if I have missed something really obvious or simple!
I really like the look of WeeWx and after many hours studying the guide
and setting it all up, it currently it is not ready yet with such a
fundamental problem.
Really hope there is a simple fix, that I have missed.
Many, many thanks in advance if someone is able to help.
Dave.
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