feature request:use rain data from another weewx instance (WX_Binding) to calculate last rain...

[peters77]

Hi,

I attached a second rain bucket on a second weewx (mqtt_binding) instance.
The http page is build by the first instance (weewx_binding) and I can query archive data from the second instance.
(example:

Temperatur Boden(5cm) $latest($data_binding='mqtt_binding').extraTemp2

Could you extend your extension to select the database to use (data_binding) to compute two 'last_rain' and 'time_since_last_rain'...maybe 'time_since_last_rain_database1' and 'time_since_last_database2?
That would be great to get (from weewx instance one) the last rain from my second rain bucket (weewx instance two) into my http site.
If that is not possible, do you know a way to get 'last_rain' and 'time_since_last_rain' from weewx instance two into instance one?

Regards,

Christian