Looks like the author of the extension forgot to check whether the value of
"rain" could be None. This appears to be a known issue, but hasn't been
fixed. See https://github.com/matthewwall/weewx-wxt5x0/issues/8
On Wed, Feb 21, 2024 at 1:18 AM awe <alfwi...@gmail.com> wrote:
> I got the same issue with the wxt5x0 running on a Raspberry with the
> latest everything.....
>
> Did you find a fix?
>
>
>
> Feb 21 06:31:56 hpii weewxd[427]: DEBUG user.wxt5x0: raw: 30 52 30 2C 44
> 6D 3D 30 38 38 44 2C 44 78 3D 31 30 36 44 2C 53 6D 3D 32 2E 31 53 2C 53 78
> 3D 32 2E 37 53 2C 54 61 3D 33 35 2E 36 46 2C 55 61 3D 36 38 2E 38 50 2C 50
> 61 3D 32 39 2E 33 32 49 2C 52 63 3D 30 52 32 2C 54 61 3D 33 35 2E 36 46 2C
> 55 61 3D 36 38 2E 38 50 2C 50 61 3D 32 39 2E 33 32 49 0D 0A
> Feb 21 06:31:57 hpii weewxd[427]: ERROR user.wxt5x0: parse failed for
> b'Rc' (b'0R2'):could not convert string to float: b'0R'
> Feb 21 06:31:57 hpii weewxd[427]: DEBUG user.wxt5x0: parsed:
> {'wind_dir_avg': 88.0, 'wind_dir_max': 106.0, 'wind_speed_avg':
> 0.9387840000000001, 'wind_speed_max': 1.207008, 'temperature':
> 2.000000000000001, 'humidity': 68.8, 'pressure': 992.889548, 'rain': None}
> Feb 21 06:31:57 hpii weewxd[427]: INFO weewx.engine: Main loop exiting.
> Shutting engine down.
> Feb 21 06:31:57 hpii weewxd[427]: INFO weewx.engine: Shutting down
> StdReport thread
> Feb 21 06:31:57 hpii weewxd[427]: DEBUG weewx.engine: StdReport thread has
> been terminated
> Feb 21 06:31:57 hpii weewxd[427]: DEBUG user.wxt5x0: close serial port
> /dev/ttyAMA0
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: Caught unrecoverable
> exception:
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** '<' not
> supported between instances of 'NoneType' and 'float'
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** Traceback
> (most recent call last):
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** File
> "/usr/share/weewx/weewxd.py", line 166, in main
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: ****
> engine.run()
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** File
> "/usr/share/weewx/weewx/engine.py", line 204, in run
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** for
> packet in self.console.genLoopPackets():
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** File
> "/etc/weewx/bin/user/wxt5x0.py", line 501, in genLoopPackets
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** packet
> = self._data_to_packet(data)
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** File
> "/etc/weewx/bin/user/wxt5x0.py", line 532, in _data_to_packet
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: ****
> packet['rain'] = self._delta_rain(
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** File
> "/etc/weewx/bin/user/wxt5x0.py", line 542, in _delta_rain
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** if rain
> < last_rain:
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** TypeError:
> '<' not supported between instances of 'NoneType' and 'float'
> Feb 21 06:31:57 hpii weewxd[427]: Traceback (most recent call last):
> Feb 21 06:31:57 hpii weewxd[427]: File "/usr/share/weewx/weewxd.py",
> line 265, in <module>
> Feb 21 06:31:57 hpii weewxd[427]: main()
> Feb 21 06:31:57 hpii weewxd[427]: File "/usr/share/weewx/weewxd.py",
> line 166, in main
> Feb 21 06:31:57 hpii weewxd[427]: CRITICAL __main__: **** Exiting.
> Feb 21 06:31:57 hpii weewxd[427]: engine.run()
> Feb 21 06:31:57 hpii weewxd[427]: File
> "/usr/share/weewx/weewx/engine.py", line 204, in run
> Feb 21 06:31:57 hpii weewxd[427]: for packet in
> self.console.genLoopPackets():
> Feb 21 06:31:57 hpii weewxd[427]: File "/etc/weewx/bin/user/wxt5x0.py",
> line 501, in genLoopPackets
> Feb 21 06:31:57 hpii weewxd[427]: packet = self._data_to_packet(data)
> Feb 21 06:31:57 hpii weewxd[427]: File "/etc/weewx/bin/user/wxt5x0.py",
> line 532, in _data_to_packet
> Feb 21 06:31:57 hpii weewxd[427]: packet['rain'] = self._delta_rain(
> Feb 21 06:31:57 hpii weewxd[427]: File "/etc/weewx/bin/user/wxt5x0.py",
> line 542, in _delta_rain
> Feb 21 06:31:57 hpii weewxd[427]: if rain < last_rain:
> Feb 21 06:31:57 hpii weewxd[427]: TypeError: '<' not supported between
> instances of 'NoneType' and 'float'
> Feb 21 06:31:58 hpii systemd[1]: weewx.service: Main process exited,
> code=exited, status=1/FAILURE
> Feb 21 06:31:58 hpii systemd[1]: weewx.service: Failed with result
> 'exit-code'.
> Feb 21 06:31:58 hpii systemd[1]: weewx.service: Consumed 1h 20min 28.253s
> CPU time.
>
> On Friday, April 2, 2021 at 10:43:02 AM UTC+2 Sven Gloor wrote:
>
>>
>> Hello everybody
>>
>> I'm using weewx on a Raspi 3B together with the Vaisala WXT520. The WXT
>> is sending automatic messages (ASCII, 0R1: 3s, 0R2: 15s, 0R3: 60s, 0R0:
>> 60s).
>> After starting weewx everthing looks OK but after sometimes houres,
>> sometimes days, weewx stop working. In the syslog I can see the following
>> entries:
>> Apr 2 02:55:25 raspberrypi weewx[27403] ERROR user.wxt5x0: parse failed
>> for b'Rc' (b'0.00R0'):could not convert string to float: b'0.00R'
>> Apr 2 02:55:35 raspberrypi weewx[27403] ERROR user.wxt5x0: parse failed
>> for b'Sn' (b'0.4N0R0'):could not convert string to float: b'0.4N0R'
>> Apr 2 02:55:39 raspberrypi weewx[27403] INFO user.wxt5x0: unknown unit
>> 'b'D'' for rain
>> Apr 2 02:55:45 raspberrypi weewx[27403] ERROR user.wxt5x0: parse failed
>> for b'Hp' (b'0.00R0'):could not convert string to float: b'0.00R'
>> Apr 2 02:55:53 raspberrypi weewx[27403] ERROR user.wxt5x0: parse failed
>> for b'Hp' (b'0.00R0'):could not convert string to float: b'0.00R'
>> Apr 2 02:55:55 raspberrypi weewx[27403] ERROR user.wxt5x0: parse failed
>> for b'Hp' (b'0.00R0'):could not convert string to float: b'0.00R'
>> Apr 2 02:56:00 raspberrypi weewx[27403] ERROR user.wxt5x0: parse failed
>> for b'Hp' (b'0.00R0'):could not convert string to float: b'0.00R'
>> Apr 2 02:56:02 raspberrypi weewx[27403] ERROR user.wxt5x0: parse failed
>> for b'Hp' (b'0.00R0'):could not convert string to float: b'0.00R'
>> Apr 2 02:56:09 raspberrypi weewx[27403] ERROR user.wxt5x0: parse failed
>> for b'Rc' (b'0.0.9N'):could not convert string to float: b'0.0.9'
>> Apr 2 02:56:09 raspberrypi weewx[27403] INFO weewx.engine: Main loop
>> exiting. Shutting engine down.
>> Apr 2 02:56:09 raspberrypi weewx[27403] INFO weewx.engine: Shutting down
>> StdReport thread
>> Apr 2 02:56:09 raspberrypi weewx[27403] CRITICAL __main__: Caught
>> unrecoverable exception:
>> Apr 2 02:56:09 raspberrypi weewx[27403] CRITICAL __main__: **** '<'
>> not supported between instances of 'NoneType' and 'float'
>> Apr 2 02:56:09 raspberrypi weewx[27403] CRITICAL __main__: ****
>> Traceback (most recent call last):
>> Apr 2 02:56:09 raspberrypi weewx[27403] CRITICAL __main__: ****
>> File "/usr/share/weewx/weewxd", line 157, in main
>> Apr 2 02:56:09 raspberrypi weewx[27403] CRITICAL __main__: ****
>> engine.run()
>> Apr 2 02:56:09 raspberrypi weewx[27403] CRITICAL __main__: ****
>> File "/usr/share/weewx/weewx/engine.py", line 208, in run
>> Apr 2 02:56:09 raspberrypi weewx[27403] CRITICAL __main__: ****
>> for packet in self.console.genLoopPackets():
>> Apr 2 02:56:09 raspberrypi weewx[27403] CRITICAL __main__: ****
>> File "/usr/share/weewx/user/wxt5x0.py", line 501, in genLoopPackets
>> Apr 2 02:56:09 raspberrypi weewx[27403] CRITICAL __main__: ****
>> packet = self._data_to_packet(data)
>> Apr 2 02:56:10 raspberrypi weewx[27403] CRITICAL __main__: ****
>> File "/usr/share/weewx/user/wxt5x0.py", line 533, in _data_to_packet
>> Apr 2 02:56:10 raspberrypi weewx[27403] CRITICAL __main__: ****
>> packet['rain_total'], self.last_rain_total)
>> Apr 2 02:56:10 raspberrypi weewx[27403] CRITICAL __main__: ****
>> File "/usr/share/weewx/user/wxt5x0.py", line 542, in _delta_rain
>> Apr 2 02:56:10 raspberrypi weewx[27403] CRITICAL __main__: ****
>> if rain < last_rain:
>> Apr 2 02:56:10 raspberrypi weewx[27403] CRITICAL __main__: ****
>> TypeError: '<' not supported between instances of 'NoneType' and 'float'
>> Apr 2 02:56:10 raspberrypi weewx[27403] CRITICAL __main__: ****
>> Exiting.
>>
>> After restarting weewx everthing is working again.
>> So for me it looks like there are "collisions" between the automatic
>> messages and the polled messages.
>> Can I reconfigure weewx to not poll the WXT and only use the automatic
>> messages?
>>
>> Kind regards
>> Sven
>>
>> --
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