Amazing amount of work and detail went into WeeWX! It is hard to find what can 
not be adjusted. 

I parse data from a small text only report I added. I think:

$current.DateTime.Raw

is adequate. No need for $latest in this context? $current will be the time 
report was generated. If too old...



Na 8. listopada 2019. 04:19:23 CEST, Andrew Milner 
<[email protected]> wrote:
>as i said if communication is lost no data is saved in the database -
>so 
>you will not have n/a, null or anything else in the database.  in fact 
>weewx will ultimately stop running and eventually do a restart.  the 
>symptom will be shown by the time of the generated html file - which
>will 
>be older than 5 minutes ago (or whatever archive period you have 
>specified).  do my test and see what happens.
>
>
>
>On Monday, 7 October 2019 21:15:43 UTC+3, Pila wrote:
>>
>> I meant: my external program parses output. How will my program know
>USB 
>> broke down? What value in my program should i test to find reset is
>needed? 
>> Will N/A be saved?
>>
>> Na 7. listopada 2019. 15:26:17 CEST, Andrew Milner
><[email protected] 
>> <javascript:>> wrote:
>>>
>>> the driver will log an error if communication with the fine offset
>is 
>>> lost, and does not continue to store data in the database until 
>>> communication is restored.
>>>
>>>
>>>
>>>
>>>
>>> On Monday, 7 October 2019 16:19:19 UTC+3, Pila wrote:
>>>>
>>>> I export InTemp to check if my USB connection to the First Offset 
>>>> dropped dead.
>>>>
>>>> InTemp      $current.inTemp.format(add_label=False)
>>>> InTemp      $current.inTemp.raw
>>>>
>>>> What will be produced in case of null data? What do I need to test?
>
>>>>
>>>> In the first case, I expect N/A to mean USB connection is lost. I
>am 
>>>> guessing N/A will not be in raw data. An empty field?
>>>>
>>>> So, probably the first line is a better choice for such purpose?
>>>>
>>>>
>
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