Signal4 and Signal 5 are sensor tilt measurements in degrees.  For example, 
if the sensor is tilted 1.5 degrees in the N/S direction the value for 
Signal4 = 1.5 degrees.  Looking at units.py and defaults.py I see groups 
for degrees temperature, degrees direction, but not degrees tilt.  Should a 
new group "group-tilt" be added through the driver or should this be added 
to weewx files to be made available to everyone?

On Saturday, September 23, 2023 at 4:06:25 PM UTC+12 Craig Young wrote:

> I will add the assignments in the driver.
>
> On Saturday, September 23, 2023 at 12:38:22 PM UTC+12 Tom Keffer wrote:
>
>> Good advice!
>>
>> On Fri, Sep 22, 2023 at 5:35 PM gjr80 <gjrod...@gmail.com> wrote:
>>
>>> The other other variation on Tom's advice to use extensions.py, 
>>> particularly if you are (still keen on) writing your own driver, is to 
>>> include the unit group assignments in the driver file. They statements only 
>>> need to be somewhere where they are executed each time WeeWX starts. If the 
>>> fields are inextricably linked to the driver having everything in one place 
>>> can be of benefit. I've used this approach with some of the drivers I have 
>>> written.
>>>
>>> Gary
>>>
>>> On Saturday, 23 September 2023 at 10:11:16 UTC+10 tke...@gmail.com 
>>> wrote:
>>>
>>>> Exactly.
>>>>
>>>> Or, alternatively, you can assign them to appropriate unit groups 
>>>> <http://www.weewx.com/docs/customizing.htm#Assigning_a_unit_group> in 
>>>> the file user/extensions.py:
>>>>
>>>> *import weewx.units*
>>>>
>>>> *weewx.units.obs_group_dict['signal1'] = 'group_radiation'*
>>>> *weewx.units.obs_group_dict['signal2'] = 'group_temperature'*
>>>> *weewx.units.obs_group_dict['signal3'] = 'group_radiation'*
>>>>
>>>>
>>>> Then you would not need to specify a format and label. It would also 
>>>> allow you to do things like 
>>>>
>>>> *The temperature is $current.signal2.degree_C 
>>>> ($current.signal2.degree_F)*
>>>>
>>>>
>>>> to publish the temperature in both ºC and ºF.
>>>>
>>>> -tk
>>>>
>>>> On Fri, Sep 22, 2023 at 4:38 PM Craig Young <craig.y...@gmail.com> 
>>>> wrote:
>>>>
>>>>> Thanks Tom.  Signal1 for my station is the signal voltage from a 
>>>>> pyrgometer.  Signal2 is the temperature of the pyrgometer sensor (C) and 
>>>>> Signal3 is the long wave intensity (W/m2) calculated by the datalogger.  
>>>>> So 
>>>>> if I understand correctly, the weewx engine will pass these values 
>>>>> untouched through the various services and add to the DB as real numbers. 
>>>>>  
>>>>> I can then deal with them manually when creating the report.
>>>>>
>>>>> On Saturday, September 23, 2023 at 11:00:54 AM UTC+12 Tom Keffer wrote:
>>>>>
>>>>>> Signals are for ill-defined measurements. 
>>>>>>
>>>>>> Unit groups exist for two reasons:
>>>>>>
>>>>>>    1. To pick an appropriate unit for a type of measurement. For 
>>>>>>    example, ºC for temperatures.
>>>>>>    2. To pick an appropriate format and label.
>>>>>>
>>>>>> Signals don't fit neatly into these reasons. They don't take a unit, 
>>>>>> and it's not obvious what format and what label they should use. So, 
>>>>>> they 
>>>>>> were left out of units.py and defaults.py. 
>>>>>>
>>>>>> You can use the signal types without adding them to a unit group. You 
>>>>>> just won't be able to convert them to a different unit (which they don't 
>>>>>> have anyway), and there will be no automatic formatting and labelling. 
>>>>>> If 
>>>>>> you need a format, use a .format() suffix. If you need a format, just 
>>>>>> add 
>>>>>> it on. For example:
>>>>>>
>>>>>> *$current.signal1.format("%d") widgets*
>>>>>>
>>>>>>
>>>>>> Alternatively, if your signal is actually some kind of counter, you 
>>>>>> could assign them to group_count. Then they would use "%d" for the 
>>>>>> format, 
>>>>>> and an empty string for the label.
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Fri, Sep 22, 2023 at 3:22 PM Craig Young <craig.y...@gmail.com> 
>>>>>> wrote:
>>>>>>
>>>>>>> In the wview_extended.py schema there is a group of types for 
>>>>>>> signals (signal1, signal2, .. signal8) and stored in the DB as reals.  
>>>>>>> I 
>>>>>>> looked in units.py but did not see signals listed. 
>>>>>>>
>>>>>>> On Saturday, September 23, 2023 at 9:40:17 AM UTC+12 Craig Young 
>>>>>>> wrote:
>>>>>>>
>>>>>>>> What units group do the observation type Signals fall under?   Or, 
>>>>>>>> if I use a signal do I need to update a configuration file to place it 
>>>>>>>> into 
>>>>>>>> a units group.
>>>>>>>>
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>>>>>>>
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