On Sunday, 26 July 2020 00:54:03 UTC+10, Vetti52 wrote:
>
> When running reconfigure with prompts, there are two changes, that
> occured in my case without asking:
> group_pressure turns to inHg, and group_speed and group_speed2 turn to
> mile_per_hour
> and ~2 respectively.You better diff old and new version before restarting.
>
This almost certainly is an issue with wee_config and your config; the
GW1000 driver has no ability to change WeeWX units/unit system. I do have a
vague recollection that there was a previous issue that was raised (and
fixed) regarding unexpected unit changes (it may have been on upgrade). I
will make a note to look into this.
> In addition, 'radiation': 'solar_radiation', is missing in default_field_map
> in gw1000.py.
>
This is intentional. Unfortunately the GW1000 API has no ability to obtain
what in WeeWX parlance we know as field radiation (solar insolation). The
API can return what the API terms 'light' or luminosity in Lux as well as
UV index and what the API terms 'UV' in microWatts per square metre. Some
folks derive field radiation from luminosity though I believe the
relationship is somewhat complex. It's not the place for the GW1000 driver
to derive obs such as radiation from other obs, rather derived observations
should be derived by the StdWXCalculate service. Whilst the StdWXCalculate
service does not really lend itself at present to the addition of user
defined derived obs, a user can add simple derived obs by adding
appropriate entries under [StdCalibrate] [[Corrections]] in weewx.conf, for
example:
[StdCalibrate]
[[Corrections]]
new_obs = outTemp * 2.5 + 2 * (windSpeed - barometer)
would create the field new_obs using the (nonsense) formula shown. The
default GW1000 driver mapping passes the light, UV and UV index
observations through to the WeeWX loop packet (UV index is mapped to WeeWX
field UV) so they are available for use in StdCalibrate as required.
Gary
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