It needs the external temperature (outTemp), not the inside temperature.

On Sat, Oct 7, 2023 at 5:37 PM Paolo Franchini <[email protected]>
wrote:

> Thanks! On the wiki it says "[...] barometer requires the temperature 12
> hours ago in order to correct for diurnal tide effects." So maybe I should
> not expect the barometer value to be calculated straight away and probably
> was not running long enough to get it.
>
> the intemp is present, not the external (which maybe is required as well)
> since have to fix the transmitter first.
>
> On Saturday, 7 October 2023 at 22:29:49 UTC+1 Tom Keffer wrote:
>
>> Your hardware is measuring "pressure", which is the uncorrected "gauge"
>> pressure. You want "barometer", which is pressure corrected for altitude
>> and temperature. See the wiki article *Barometer, pressure, and
>> altimeter
>> <https://github.com/weewx/weewx/wiki/Barometer,-pressure,-and-altimeter>*
>> for the differences.
>>
>> To calculate "barometer" from "pressure" requires temperature, as well as
>> station altitude. For whatever reason, your station is not emitting
>> temperature, so "barometer" cannot be calculated.
>>
>> I don't have enough experience with the Fine Offset stations to comment
>> on why temperature is not being emitted.
>>
>> -tk
>>
>> On Sat, Oct 7, 2023 at 2:12 PM Paolo Franchini <[email protected]>
>> wrote:
>>
>>> Hi,
>>>
>>> I am using the above station on Fedora 38, but I do not see on the
>>> "Seasons" webpage the pressure. wee_device shows the pressure as on the
>>> display (note, I have the remote sensors currently disconnected)
>>>
>>> [root@fedora bin]# ./wee_device --current
>>> Using configuration file /home/franchini/weewx/weewx.conf
>>> Using FineOffsetUSB driver version 1.20 (weewx.drivers.fousb)
>>> {'usUnits': 16, 'dateTime': 1696712761, 'inHumidity': 81.0, 'inTemp':
>>> 20.700000000000003, 'outHumidity': None, 'outTemp': None, 'pressure':
>>> 1022.3000000000001, 'windSpeed'
>>> : None, 'windGust': None, 'windDir': None, 'rain': None, 'radiation':
>>> None, 'UV': None, 'status': 64, 'ptr': 1996, 'delay': 12, 'rxCheckPercent':
>>> 0, 'outTempBatteryStatus'
>>> : 0, 'rainTotal': 0.0}
>>>
>>> but weewxd leaves it empty, so I imagine no plots for this reason
>>>
>>> LOOP:   2023-10-07 18:37:40 BST (1696700260) 'altimeter':
>>> '30.161698861370837', 'appTemp': 'None', 'barometer': 'None', 'cloudbase':
>>> 'None', 'dateTime': '1696700260', 'del
>>> ay': '14', 'dewpoint': 'None', 'ET': 'None', 'heatindex': 'None',
>>> 'humidex': 'None', 'inDewpoint': '64.22383957565924', 'inHumidity': '82.0',
>>> 'inTemp': '69.98', 'maxSolarR
>>> ad': 'None', 'outHumidity': 'None', 'outTemp': 'None',
>>> 'outTempBatteryStatus': '0', 'pressure': '30.158976233750003', 'ptr':
>>> '1856', 'radiation': 'None', 'rain': '0.0', 'r
>>> ainRate': '0.0', 'rainTotal': '0.0', 'rxCheckPercent': '0', 'status':
>>> '64', 'usUnits': '1', 'UV': 'None', 'windchill': 'None', 'windDir': 'None',
>>> 'windGust': 'None', 'wind
>>> GustDir': 'None', 'windrun': 'None', 'windSpeed': 'None'
>>>
>>> Current configuration:
>>> version = 4.10.2
>>> station_type = FineOffsetUSB
>>> model = WH3081
>>>
>>> Many thanks,
>>>
>>> Paolo
>>>
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