The error you are getting is coming from the ScalarStats accumulator, not the FirstLast accumulator. For some reason, the latter is not getting used, despite your configuration information (which looks correct).
Is there another type besides phenomenon which has a string in it? -tk On Mon, Feb 8, 2021 at 1:46 AM Tarmo <[email protected]> wrote: > Thank you! > > It seems that the attempt to convert string to float still happens. I will > attach snippets from log and config here. The field name which is causing > trouble is "phenomenon". > > [MQTTSubscribeDriver] > # This section is for the MQTTSubscribe driver. > > # The driver to use: > driver = user.MQTTSubscribe > > # The MQTT server. > # Default is localhost. > host = localhost > > # The port to connect to. > # Default is 1883. > port = 1883 > > # Maximum period in seconds allowed between communications with the > broker. > # Default is 60. > keepalive = 60 > > # username for broker authentication. > # Default is None. > username = rtl > > # password for broker authentication. > # Default is None. > password = xx > > # Configuration for the message callback. > [[message_callback]] > type = individual > > # The topics to subscribe to. > [[topics]] > unit_system = METRIC > use_topic_as_fieldname = true > use_server_datetime = true > > [[[rtl_433/lab/devices/Solight-TE44/1/4/temperature_C]]] > name = outTemp > [[[emhi/26038/uvindex]]] > name = UV > [[[emhi/26038/airpressure]]] > name = pressure > [[[emhi/26038/precipitations]]] > name = rain > contains_total = true > [[[emhi/26038/relativehumidity]]] > name = outHumidity > [[[emhi/26038/winddirection]]] > name = windDir > [[[emhi/26038/windspeed]]] > name = windSpeed > units = meter_per_second > [[[emhi/26038/windspeedmax]]] > name = windGust > units = meter_per_second > [[[emhi/26038/phenomenon]]] > conversion_type = None > > [Accumulator] > [[phenomenon]] > accumulator = firstlast > extractor = last > > > > > > Feb 8 11:21:38 pi3 systemd[1]: Starting LSB: weewx weather system... > Feb 8 11:21:39 pi3 weewx[26841] INFO __main__: Initializing weewx version > 4.4.0 > Feb 8 11:21:39 pi3 weewx[26841] INFO __main__: Using Python 3.5.3 > (default, Nov 18 2020, 21:09:16) #012[GCC 6.3.0 20170516] > Feb 8 11:21:39 pi3 weewx[26841] INFO __main__: Platform > Linux-4.19.66-v7+-armv7l-with-debian-9.13 > Feb 8 11:21:39 pi3 weewx[26841] INFO __main__: Locale is 'en_GB.UTF-8' > Feb 8 11:21:39 pi3 weewx[26841] INFO __main__: PID file is > /var/run/weewx.pid > Feb 8 11:21:39 pi3 weewx[26845] INFO __main__: Using configuration file > /home/weewx/weewx.conf > Feb 8 11:21:39 pi3 weewx[26845] INFO __main__: Debug is 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO weewx.engine: Loading station type > MQTTSubscribeDriver (user.MQTTSubscribe) > Feb 8 11:21:39 pi3 weewx[26830]: Starting weewx weather system: weewx. > Feb 8 11:21:39 pi3 systemd[1]: Started LSB: weewx weather system. > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) Version > is 1.6.2 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) Log > level: 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) Log > debug setting: 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) Log > console: False > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) Log > file: None > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) overlap > is 0.0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > message_callback_provider_name is user.MQTTSubscribe.MessageCallbackProvider > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > clientid is MQTTSubscribe-9835 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > client_session is True > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) host is > localhost > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) port is > 1883 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > keepalive is 60 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > username is rtl > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > password is set > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) Archive > topic is None > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) Wait > before retry is 2 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Connected with result code 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Connected flags {'session present': 0} > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Subscribed to mid: 1 is size 1 has a QOS of 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Subscribed to mid: 2 is size 1 has a QOS of 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Subscribed to mid: 3 is size 1 has a QOS of 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Subscribed to mid: 4 is size 1 has a QOS of 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Subscribed to mid: 5 is size 1 has a QOS of 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Subscribed to mid: 6 is size 1 has a QOS of 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Subscribed to mid: 7 is size 1 has a QOS of 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Subscribed to mid: 8 is size 1 has a QOS of 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Subscribed to mid: 9 is size 1 has a QOS of 0 > Feb 8 11:21:39 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Subscribed to mid: 10 is size 1 has a QOS of 0 > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.engine: StdConvert target unit > is 0x1 > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.engine: Archive will use data > binding wx_binding > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.engine: Record generation will > be attempted in 'hardware' > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.engine: Using archive interval > of 300 seconds (specified in weewx configuration) > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.restx: StationRegistry: > Station will be registered. > Feb 8 11:21:40 pi3 weewx[26845] INFO user.mqtt: service version is 0.22 > Feb 8 11:21:40 pi3 weewx[26845] INFO user.mqtt: binding to loop > Feb 8 11:21:40 pi3 weewx[26845] INFO user.mqtt: topic is weather > Feb 8 11:21:40 pi3 weewx[26845] INFO user.mqtt: desired unit system is > METRIC > Feb 8 11:21:40 pi3 weewx[26845] INFO user.mqtt: data will be uploaded to > mqtt://ilm:xxx@localhost:1883/ > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.restx: Wunderground-PWS: Data > for station IHARJUMA19 will be posted > Feb 8 11:21:40 pi3 weewx[26845] INFO user.windy: version is 0.7 > Feb 8 11:21:40 pi3 weewx[26845] INFO user.windy: Data will be uploaded to > https://stations.windy.com/pws/update > Feb 8 11:21:40 pi3 weewx[26845] INFO __main__: Starting up weewx version > 4.4.0 > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.engine: Using binding > 'wx_binding' to database 'weewx.sdb' > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.manager: Starting backfill of > daily summaries > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.manager: Daily summaries up to > date > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.engine: Starting main packet > loop. > Feb 8 11:21:40 pi3 weewx[26845] INFO weewx.engine: Main loop exiting. > Shutting engine down. > Feb 8 11:21:40 pi3 weewx[26845] INFO user.MQTTSubscribe: (Driver) > Disconnected with result code 0 > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: Caught unrecoverable > exception: > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** could not > convert string to float: 'Light snowfall' > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** Traceback > (most recent call last): > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** File > "/home/weewx/bin/weewxd", line 157, in main > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** > engine.run() > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** File > "/home/weewx/bin/weewx/engine.py", line 210, in run > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** > self.dispatchEvent(weewx.Event(weewx.NEW_LOOP_PACKET, packet=packet)) > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** File > "/home/weewx/bin/weewx/engine.py", line 245, in dispatchEvent > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** > callback(event) > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** File > "/home/weewx/bin/weewx/engine.py", line 594, in new_loop_packet > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** > self.accumulator.addRecord(event.packet, add_hilo=self.loop_hilo) > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** File > "/home/weewx/bin/weewx/accum.py", line 436, in addRecord > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** > func(self, record, obs_type, add_hilo, weight) > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** File > "/home/weewx/bin/weewx/accum.py", line 495, in add_value > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** > self[obs_type].addHiLo(val, record['dateTime']) > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** File > "/home/weewx/bin/weewx/accum.py", line 168, in addHiLo > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** val = > to_float(val) > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** File > "/home/weewx/bin/weeutil/weeutil.py", line 1250, in to_float > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** return > float(x) if x is not None else None > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** ValueError: > could not convert string to float: 'Light snowfall' > Feb 8 11:21:40 pi3 weewx[26845] CRITICAL __main__: **** Exiting. > On Monday, February 8, 2021 at 3:19:36 AM UTC+2 [email protected] wrote: > >> It should be doable. I do something similar with a few temperature >> sensors/fields. The fact that you are dealing with string data does add >> some complexity. >> First, for the field configuration you will need to set the >> conversion_type = None. Although it is not documented on the wiki, see >> https://github.com/bellrichm/WeeWX-MQTTSubscribe/wiki/Configuring#conversion_type >> This will stop MQTTSubscribe from trying to convert the incoming data. >> >> Next, you will need to configure the accumulator for this field/type. >> See, https://github.com/weewx/weewx/wiki/Accumulators. It looks like for >> this field/type you want to set accumulator = firstlast and extractor = >> last. >> >> Now you should be able to access it via $current. field/type name. >> >> If you get this working, I’d like to ‘steal’ the details/steps for a wiki >> page. >> -rich >> >> On Sunday, 7 February 2021 at 17:05:51 UTC-5 Tarmo wrote: >> >>> Can I do it? I have a text in MQTT like "Cloudy with clear spells" which >>> I would like to display on my website. Although, there is no need to store >>> it in the weewx database. I would like to just to update it at every >>> archive interval. >>> >> -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/c163329f-7d6a-4be6-a309-a666dea07been%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/c163329f-7d6a-4be6-a309-a666dea07been%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEAaTyn4dDtOfxF9YwAbyZ3SDC%2BPhpaLdDXDQJ2T5HW%2B9w%40mail.gmail.com.
