Probably a -user question at this point, but can you explain what you're
trying to set up ?
Why would you need/want a second weewx instance ?
Why not just have system-2 subscribe to the aggregate(d) data you're
already publishing to your LAN ?
FWIW my setup here is two weewx instances - one VP2 connected to the
station, one Ecowitt connecting over the network to the ecowitt gateway.
The Ecowitt instance publishes to MQTT and the VP2 instance subscribes and
saves as extraTemp1 etc. The VP2 instances also publishes the aggregated
data from both stations out to MQTT. My Home Assistant and
influxdb/telegraf/grafana docker containers subscribe to the MQTT data they
need. Works great. Everything becomes MQTT that anybody who needs it can
subscribe to.
On Friday, March 22, 2024 at 9:38:58 AM UTC-7 Paul Dunphy wrote:
> I spent a day searching the documentation, the Internet, and user
> groups. I even asked ChatGPT! This likely is a dumb question, but I paid
> my dues B4 asking. I have a weewx-enabled Pi spitting out aggregate
> archive stanzas via MQTT every 5 minutes:
>
> {"dateTime": "1711125000.0", "usUnits": "16.0", "outTemp_C":
> "0.11853060499920859", "inTemp_C": "17.225573819849952", "barometer_mbar":
> "1053.1565009214046", "pressure_mbar": "1053.1565009214046",
> "windSpeed_kph": "0.002427633039238002", "windDir": "359.9421733668237",
> "windGust_kph": "0.004278710967144328", "windGustDir": "359.9202399679532",
> "outHumidity": "79.99094923258458", "inHumidity": "29.987934248540196",
> "radiation_Wpm2": "861.1533294284267", "UV": "12.056146611997969",
> "rain_cm": "0.0", "txBatteryStatus": "1.0", "windBatteryStatus": "0.0",
> "rainBatteryStatus": "0.7666666666666667", "outTempBatteryStatus": "0.0",
> "inTempBatteryStatus": "0.0", "consBatteryVoltage_volt": "12.0",
> "heatingVoltage_volt": "12.05558467860259", "supplyVoltage_volt":
> "12.071862590655277", "referenceVoltage_volt": "12.018038262199248",
> "rxCheckPercent": "81.54437561456504", "altimeter_mbar":
> "1056.4794019219778", "appTemp_C": "-2.2564686080177725",
> "cloudbase_meter": "396.2261771824497", "dewpoint_C":
> "-2.9181089732181587", "ET_cm": "0.0025520108394833227", "heatindex_C":
> "0.11853060499920859", "humidex_C": "0.11853060499920859", "inDewpoint_C":
> "-0.5139816409552426", "maxSolarRad_Wpm2": "731.1872454643874",
> "rainRate_cm_per_hour": "0.0", "windchill_C": "0.11853060499920859",
> "windrun_km": "0.0002023027532698335", "interval_minute": "5.0",
> "hourRain_cm": "0.0", "rain24_cm": "0.0", "dayRain_cm": "0.0"}
>
> They look good. I have a newly installed weewx instance on another Pi
> on my LAN. The second machine sees the stanzas with "mosquitto_sub -h
> 192.168.1.10 -p 1883 -t weather/# -u wee_me -P xxxxxx"
>
> Is there a way to set up weewx to make these 5 minute stanzas the data
> source for the 2nd instance of weewx? A "repeater_mqtt" reader/driver?
> Does such a thing exist? How do others use one hardware receiver and MQTT
> to supply data to other systems on their LAN? I must be missing something
> obvious.
>
> Paul VE1DX
>
> On Wednesday, March 20, 2024 at 4:01:39 PM UTC-3 Paul Dunphy wrote:
>
>> Close, Vince. It was the extension that I installed "outside" the
>> venv . . . you have to do it without sudo in the environment."
>>
>> weectl extension install weewx-mqtt.zip
>> Using configuration file /home/pdunphy/weewx-data/weewx.conf
>> Install extension 'weewx-mqtt.zip' (y/n)? y
>> Extracting from zip archive weewx-mqtt.zip
>> Saving installer file to /home/pdunphy/weewx-data/bin/user/installer/mqtt
>> Saved copy of configuration as
>> /home/pdunphy/weewx-data/weewx.conf.20240320154428
>> Finished installing extension mqtt from weewx-mqtt.zip
>>
>> This puts it in ~/weewx-data/bin/user where it's supposed to be.
>> Now, I have MQTT weather data on my LAN, which was the goal.
>>
>> Paul VE1DX
>> On Wednesday, March 20, 2024 at 2:38:16 PM UTC-3 Vince Skahan wrote:
>>
>>> You need to install paho-mqtt 'within' your python venv. Activate the
>>> venv then do 'pip3 install paho-mqtt'
>>>
>>> On Wednesday, March 20, 2024 at 10:17:24 AM UTC-7 Paul Dunphy wrote:
>>>
>>>> I have mosquitto installed and communicating between two terminal
>>>> sessions. I'm running weewx 5.0.2 in a venv on a Pi 5, and it's working
>>>> fine. I followed Tom/Matthew's instructions here to set up MQTT:
>>>>
>>>> https://github.com/weewx/weewx/wiki/mqtt
>>>>
>>>> It blows up because it can't find user.mqtt that I added to the
>>>> weewx.conf file:
>>>>
>>>> [Engine]
>>>> [[Services]]
>>>> restful_services = ..., user.mqtt.MQTT
>>>>
>>>>
>>>> Any thoughts on where I might have gone wrong?
>>>>
>>>> Paul VE1DX
>>>>
>>>> Mar 20 14:00:15 violet systemd[1]: Started weewx.service - WeeWX
>>>> weather system.
>>>> Mar 20 14:00:15 violet sudo[711921]: pam_unix(sudo:session): session
>>>> closed for user root
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: Initializing
>>>> weewxd version 5.0.2
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: Command line:
>>>> /home/pdunphy/weewx-venv/lib/python3.11/site-packages/weewxd.py
>>>> /home/pdunphy/weewx-data/weewx.conf
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: Using Python
>>>> 3.11.2 (main, Mar 13 2023, 12:18:29) [GCC 12.2.0]
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: Located at
>>>> /home/pdunphy/weewx-venv/bin/python3
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: Platform
>>>> Linux-6.6.20+rpt-rpi-2712-aarch64-with-glibc2.36
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: Locale:
>>>> 'en_GB.UTF-8'
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: Entry path:
>>>> /home/pdunphy/weewx-venv/lib/python3.11/site-packages/weewxd.py
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: WEEWX_ROOT:
>>>> /home/pdunphy/weewx-data
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: Configuration
>>>> file: /home/pdunphy/weewx-data/weewx.conf
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: User module:
>>>> /home/pdunphy/weewx-data/bin/user
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO __main__: Debug: 0
>>>> Mar 20 14:00:15 violet weewxd[711925]: INFO weewx.engine: Loading
>>>> station type Vantage (weewx.drivers.vantage)
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.engine: StdConvert
>>>> target unit is 0x10
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.wxservices:
>>>> StdWXCalculate will use data binding wx_binding
>>>> Mar 20 14:00:16 violet systemd[1]: weewx.service: Main process exited,
>>>> code=exited, status=1/FAILURE
>>>> Mar 20 14:00:16 violet python3[711925]: Traceback (most recent call
>>>> last):
>>>> Mar 20 14:00:16 violet python3[711925]: File
>>>> "/home/pdunphy/weewx-venv/lib/python3.11/site-packages/weewxd.py", line
>>>> 265, in <module>
>>>> Mar 20 14:00:16 violet python3[711925]: main()
>>>> Mar 20 14:00:16 violet python3[711925]: File
>>>> "/home/pdunphy/weewx-venv/lib/python3.11/site-packages/weewxd.py", line
>>>> 160, in main
>>>> Mar 20 14:00:16 violet python3[711925]: engine =
>>>> weewx.engine.StdEngine(config_dict)
>>>> Mar 20 14:00:16 violet python3[711925]:
>>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>> Mar 20 14:00:16 violet python3[711925]: File
>>>> "/home/pdunphy/weewx-venv/lib/python3.11/site-packages/weewx/engine.py",
>>>> line 89, in __init__
>>>> Mar 20 14:00:16 violet python3[711925]:
>>>> self.loadServices(config_dict)
>>>> Mar 20 14:00:16 violet python3[711925]: File
>>>> "/home/pdunphy/weewx-venv/lib/python3.11/site-packages/weewx/engine.py",
>>>> line 157, in loadServices
>>>> Mar 20 14:00:16 violet python3[711925]: obj =
>>>> weeutil.weeutil.get_object(svc)(self, config_dict)
>>>> Mar 20 14:00:16 violet python3[711925]:
>>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>> Mar 20 14:00:16 violet python3[711925]: File
>>>> "/home/pdunphy/weewx-venv/lib/python3.11/site-packages/weeutil/weeutil.py",
>>>>
>>>> line 1404, in get_object
>>>> Mar 20 14:00:16 violet python3[711925]: module =
>>>> importlib.import_module(module_name)
>>>> Mar 20 14:00:16 violet python3[711925]:
>>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>> Mar 20 14:00:16 violet python3[711925]: File
>>>> "/usr/lib/python3.11/importlib/__init__.py", line 126, in import_module
>>>> Mar 20 14:00:16 violet python3[711925]: return
>>>> _bootstrap._gcd_import(name[level:], package, level)
>>>> Mar 20 14:00:16 violet python3[711925]:
>>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>> Mar 20 14:00:16 violet python3[711925]: File "<frozen
>>>> importlib._bootstrap>", line 1206, in _gcd_import
>>>> Mar 20 14:00:16 violet python3[711925]: File "<frozen
>>>> importlib._bootstrap>", line 1178, in _find_and_load
>>>> Mar 20 14:00:16 violet python3[711925]: File "<frozen
>>>> importlib._bootstrap>", line 1142, in _find_and_load_unlocked
>>>> Mar 20 14:00:16 violet python3[711925]: ModuleNotFoundError: No module
>>>> named 'user.mqtt'
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.engine: Archive will
>>>> use data binding wx_binding
>>>> Mar 20 14:00:16 violet systemd[1]: weewx.service: Failed with result
>>>> 'exit-code'.
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.engine: Record
>>>> generation will be attempted in 'hardware'
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.engine: Using archive
>>>> interval of 300 seconds (specified by hardware)
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.restx:
>>>> StationRegistry: Station will be registered.
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.restx: Wunderground:
>>>> No config info. Skipped.
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.restx: PWSweather: No
>>>> config info. Skipped.
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.restx: CWOP: Data for
>>>> station VE1DX will be posted
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.restx: WOW: Data for
>>>> station 953456001 will be posted
>>>> Mar 20 14:00:16 violet weewxd[711925]: INFO weewx.restx: AWEKAS: Data
>>>> will be uploaded for user VE1DX
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: Caught
>>>> unrecoverable exception:
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: **** No
>>>> module named 'user.mqtt'
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> Traceback (most recent call last):
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> File "/home/pdunphy/weewx-venv/lib/python3.11/site-packages/weewxd.py",
>>>> line 160, in main
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> engine = weewx.engine.StdEngine(config_dict)
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> File
>>>> "/home/pdunphy/weewx-venv/lib/python3.11/site-packages/weewx/engine.py",
>>>> line 89, in __init__
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> self.loadServices(config_dict)
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> File
>>>> "/home/pdunphy/weewx-venv/lib/python3.11/site-packages/weewx/engine.py",
>>>> line 157, in loadServices
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> obj = weeutil.weeutil.get_object(svc)(self, config_dict)
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> File
>>>> "/home/pdunphy/weewx-venv/lib/python3.11/site-packages/weeutil/weeutil.py",
>>>>
>>>> line 1404, in get_object
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> module = importlib.import_module(module_name)
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> File "/usr/lib/python3.11/importlib/__init__.py", line 126, in
>>>> import_module
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> return _bootstrap._gcd_import(name[level:], package, level)
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> File "<frozen importlib._bootstrap>", line 1206, in _gcd_import
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> File "<frozen importlib._bootstrap>", line 1178, in _find_and_load
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> File "<frozen importlib._bootstrap>", line 1142, in
>>>> _find_and_load_unlocked
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> ModuleNotFoundError: No module named 'user.mqtt'
>>>> Mar 20 14:00:16 violet weewxd[711925]: CRITICAL __main__: ****
>>>> Exiting.
>>>
>>>
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