Unit override

[Tarmo]

I wrote a new service reading energy production from heatpump. I would like to store the value in "soilTemp1" since it is unused for me.

The question is, how I can override the "degree_C" with "watt_hour" or anything which is not converted from Fahrenheit to Celsius? (I am using metric units).

In skin.conf I have 

        [[[dayenergy]]]
            y_label = "kWh"
            yscale = None, None, 0.1
            plot_type = bar
            [[[[soilTemp3]]]]
                aggregate_type = sum
                aggregate_interval = 3600
                label = Energy (hourly total)

The image y-axis has kWh values which are treated like temperatures in Fahrenheit converted to Celsius.  

Thank you very much!

[gjr80]

Hi,

You need to assign a different unit group to the field soilTemp1, the clue is in the ‘Assigning a unit group’ section (http://weewx.com/docs/customizing.htm#Assigning_a_unit_group) in the Customization Guide. Try adding the following to /home/weewx/bin/user/extensions.py (untested):

import weewx.units
weewx.units.obs_group_dict['soilTemp1'] = 'group_energy’

Save then restart WeeWX, you should then be able to use soilTemp1 in reports and plots as watt_hour.

Gary

[Tarmo]

Gary, thank you very much. 

Happy holidays! :)