WEWX and Davis WM II issues

[Brian LeDuc]

Hi-

I"m new to all this but have been working for a few days trying to get weewx working iwth a WMII on a pi b+.  I have done the intall from the root cmd prompt following the debian directions and installed the wmII driver in the user folder.  I continue to have connectivity issues and errors- looking mostly like driver issues maybe?  any help from anyone who has done this setup with a WMII would be greatly appreciated, thanks!

Error from the log:

Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: Initializing weewxd version 5.1.0
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: Command line: /usr/share/weewx/weewxd.py /etc/weewx/weewx.conf
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: Using Python: 3.7.3 (default, Dec 20 2019, 18:57:59)
                                         [GCC 8.3.0]
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: Located at:   /usr/bin/python3
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: Platform:     Linux-4.19.97+-armv6l-with-debian-10.3
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: Locale:       'en_US.UTF-8'
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: Entry path:   /usr/share/weewx/weewxd.py
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: WEEWX_ROOT:   /etc/weewx
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: Config file:  /etc/weewx/weewx.conf
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: User module:  /etc/weewx/bin/user
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: Debug:        0
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: User:         weewx
Feb 12 16:00:40 raspberrypi weewxd[341]: INFO __main__: Group:        weewx
Feb 12 16:00:41 raspberrypi weewxd[341]: INFO __main__: Groups:       weewx
Feb 12 16:00:41 raspberrypi weewxd[341]: INFO weewx.engine: Loading station type wmII (user.wmII)
Feb 12 16:00:41 raspberrypi weewxd[341]: INFO user.wmII: Weather Monitor II: driver version is 1.0
Feb 12 16:00:41 raspberrypi weewxd[341]: INFO user.wmII: Weather Monitor II: using serial port /dev/ttyusb0
Feb 12 16:00:41 raspberrypi weewxd[341]: ERROR weewx.engine: Import of driver failed: [Errno 2] could not open port /dev/ttyusb0: [Errno 2] No such file or directory: '/dev/ttyusb0' (<class 'serial.serial
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****  Traceback (most recent call last):
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****    File "/usr/lib/python3/dist-packages/serial/serialposix.py", line 265, in open
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****      self.fd = os.open(self.portstr, os.O_RDWR | os.O_NOCTTY | os.O_NONBLOCK)
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****  FileNotFoundError: [Errno 2] No such file or directory: '/dev/ttyusb0'
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****  During handling of the above exception, another exception occurred:
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****  Traceback (most recent call last):
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****    File "/usr/share/weewx/weewx/engine.py", line 115, in setupStation
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****      self.console = loader_function(config_dict, self)
Feb 12 16:00:41 raspberrypi weewxd[341]: CRITICAL weewx.engine:     ****    File "/etc/weewx/bin/user/wmII.py", line 45, in loader

-Brian

[vince]

Sounds like all the other usb related problems, but before we try going deeper please try /dev/ttyUSB0 in mixed case in your weewx.conf file. Linux is case-specific.

[Brian LeDuc]

Vince-- thank you for the quick response.  I'm rusty on my linux...most of my past experience is actually with Irix/Unix and its been years...

Oh, I hope it was that simple....I got lazy with the SS, and this is a lot easier when running two monitors and 3 systems.....

still not showing up on /var/www/html/weewx/index.html though.

[vince]

IRIX ?  It has to have been decades.  They were pretty cool when they were cutting edge back then.

Please don't post screen shots.  Attach log excerpts please.   Try "sudo journalctl -u weewx" for viewing weewx related entries.  You might optionally add a "--lines 100" switch too if you want to limit it to the last 100 lines.   We basically need to see the log entries from weewx startup through the first or second archive period, meaning 5 minutes or more.

Weewx does not install a webserver and depending on how you installed the pi, raspi os might not do so either.  FWIW, I use nginx here as it's light and reliable, but any webserver you want to install would work fine if properly configured.

[Brian LeDuc]

Vince-

Roger that, no SS.  Does that appear of have been successful though?

Thanks for the addtional info.  I used the debian apt install for weewx and the latest offical rasb pi installer for the pi image.  I'll give nginx a try.  The weewx simulator was working fine, so I guess I thought the numbers should push as well once live.  I did fumble through the folders after manually running the StandardReport and there is no data at what I believe the correct locati should be based on documentation: /var/www/html/weewx/

Yes, Irix was fun...it was probably 25 years ago.  Did a bunch of work on the old SGI Indy(pizza box) and O2.  Played on a couple Indigos as well, but really like the 02....It was back when Scuzzy was all the rage so it almost felt like you were workign with a rack machine.  

Thanks again,

-Brian

[Brian LeDuc]

Vince-

Below is what I'm getting now.  It doesn't seem to be writing any data.  The folders are empty at /var/www/html/weewx

Am I totally missing something?

Thanks,

-Brian

 

weewx.service - WeeWX
   Loaded: loaded (/usr/lib/systemd/system/weewx.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2025-02-20 09:53:13 EST; 17s ago
     Docs: https://weewx.com/docs
 Main PID: 2965 (python3)
   Memory: 11.3M
   CGroup: /system.slice/weewx.service
           └─2965 python3 /usr/share/weewx/weewxd.py /etc/weewx/weewx.conf

Feb 20 09:53:22 raspberrypi weewxd[2965]: INFO weewx.engine: 'pyephem' detected, extended almanac data is available
Feb 20 09:53:22 raspberrypi weewxd[2965]: INFO __main__: Starting up weewx version 5.1.0
Feb 20 09:53:25 raspberrypi weewxd[2965]: INFO weewx.engine: Error reading time: Acknowledge not equal 6: b'\x00'
Feb 20 09:53:25 raspberrypi weewxd[2965]: INFO weewx.engine: Using binding 'wx_binding' to database 'weewx.sdb'
Feb 20 09:53:25 raspberrypi weewxd[2965]: INFO weewx.manager: Starting backfill of daily summaries
Feb 20 09:53:25 raspberrypi weewxd[2965]: INFO weewx.manager: Daily summaries up to date
Feb 20 09:53:25 raspberrypi weewxd[2965]: INFO weewx.engine: Starting main packet loop.
Feb 20 09:53:25 raspberrypi weewxd[2965]: INFO weewx.engine: Main loop exiting. Shutting engine down.
Feb 20 09:53:25 raspberrypi weewxd[2965]: CRITICAL __main__: Caught WeeWxIOError: Acknowledge not equal 6: b'\x00'
Feb 20 09:53:25 raspberrypi weewxd[2965]: CRITICAL __main__:     ****  Waiting 60.0 seconds then retrying...

root@raspberrypi:~# sudo journalctl -u weew --lines 100
-- Logs begin at Fri 2025-02-14 15:03:55 EST, end at Thu 2025-02-20 10:09:06 EST. --
-- No entries --

[Tom Keffer]

Brian,

You will have to take this up with the driver's author. It appears that the hardware is sending an acknowledgement number that the driver is not expecting.

-tk

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[Brian LeDuc]

Tom-

Thanks.  Something is definitely off.  I switched the BR on the logger to give that a go and no dice.  Reset everything and put bacak to the way it was and now Weewx wont even start up....

root@raspberrypi:~# sudo systemctl status weewx
● weewx.service - WeeWX

   Loaded: loaded (/usr/lib/systemd/system/weewx.service; enabled; vendor preset: enabled)

   Active: failed (Result: exit-code) since Thu 2025-02-20 11:13:42 EST; 1min 49s ago
     Docs: https://weewx.com/docs
  Process: 24689 ExecStart=/usr/bin/weewxd /etc/weewx/weewx.conf (code=exited, status=4)
 Main PID: 24689 (code=exited, status=4)

Feb 20 11:13:42 raspberrypi weewxd[24689]: CRITICAL weewx.engine:     ****      self.open()
Feb 20 11:13:42 raspberrypi weewxd[24689]: CRITICAL weewx.engine:     ****    File "/usr/lib/python3/dist-packages/serial/serialposix.py", line 286, in open
Feb 20 11:13:42 raspberrypi weewxd[24689]: CRITICAL weewx.engine:     ****      self._update_dtr_state()
Feb 20 11:13:42 raspberrypi weewxd[24689]: CRITICAL weewx.engine:     ****    File "/usr/lib/python3/dist-packages/serial/serialposix.py", line 634, in _update_dtr_state
Feb 20 11:13:42 raspberrypi weewxd[24689]: CRITICAL weewx.engine:     ****      fcntl.ioctl(self.fd, TIOCMBIS, TIOCM_DTR_str)
Feb 20 11:13:42 raspberrypi weewxd[24689]: CRITICAL weewx.engine:     ****  OSError: [Errno 5] Input/output error
Feb 20 11:13:42 raspberrypi weewxd[24689]: CRITICAL __main__: Unable to load driver: [Errno 5] Input/output error
Feb 20 11:13:42 raspberrypi weewxd[24689]: CRITICAL __main__:     ****  Exiting...
Feb 20 11:13:42 raspberrypi systemd[1]: weewx.service: Main process exited, code=exited, status=4/NOPERMISSION
Feb 20 11:13:42 raspberrypi systemd[1]: weewx.service: Failed with result 'exit-code'.
root@raspberrypi:~# 

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[Brian LeDuc]

After a full reset here is where I'm at.  Still doesn't seem to be recording any files in the db or generating anything in the expected folder:

weewx.service - WeeWX
   Loaded: loaded (/usr/lib/systemd/system/weewx.service; enabled; vendor preset: enabled)

   Active: active (running) since Thu 2025-02-20 11:59:35 EST; 21s ago
     Docs: https://weewx.com/docs
 Main PID: 4340 (python3)
   Memory: 7.8M
   CGroup: /system.slice/weewx.service
           └─4340 python3 /usr/share/weewx/weewxd.py /etc/weewx/weewx.conf

Feb 20 11:59:41 raspberrypi weewxd[4340]: INFO __main__: Group:        weewx
Feb 20 11:59:41 raspberrypi weewxd[4340]: INFO __main__: Groups:       weewx
Feb 20 11:59:41 raspberrypi weewxd[4340]: INFO weewx.engine: Loading station type wmII (user.wmII)
Feb 20 11:59:41 raspberrypi weewxd[4340]: INFO user.wmII: Weather Monitor II: driver version is 1.0
Feb 20 11:59:41 raspberrypi weewxd[4340]: INFO user.wmII: Weather Monitor II: using serial port /dev/ttyUSB0
Feb 20 11:59:41 raspberrypi weewxd[4340]: INFO weewx.engine: StdConvert target unit is 0x1
Feb 20 11:59:41 raspberrypi weewxd[4340]: INFO weewx.wxservices: StdWXCalculate will use data binding wx_binding
Feb 20 11:59:47 raspberrypi weewxd[4340]: INFO weewx.engine: Archive will use data binding wx_binding
Feb 20 11:59:47 raspberrypi weewxd[4340]: INFO weewx.engine: Record generation will be attempted in 'hardware'
Feb 20 11:59:47 raspberrypi weewxd[4340]: INFO weewx.engine: Using archive interval of 300 seconds (specified in weewx configuration)
root@raspberrypi:~#

root@raspberrypi:~# sudo systemctl status weewx
● weewx.service - WeeWX
   Loaded: loaded (/usr/lib/systemd/system/weewx.service; enabled; vendor preset: enabled)

   Active: active (running) since Thu 2025-02-20 11:59:35 EST; 21min ago
     Docs: https://weewx.com/docs
 Main PID: 4340 (python3)
   Memory: 8.8M
   CGroup: /system.slice/weewx.service
           └─4340 python3 /usr/share/weewx/weewxd.py /etc/weewx/weewx.conf

Feb 20 12:20:10 raspberrypi weewxd[4340]: INFO weewx.engine: 'pyephem' detected, extended almanac data is available
Feb 20 12:20:10 raspberrypi weewxd[4340]: INFO __main__: Starting up weewx version 5.1.0
Feb 20 12:20:12 raspberrypi weewxd[4340]: INFO weewx.engine: Error reading time: Acknowledge returned empty: b''
Feb 20 12:20:13 raspberrypi weewxd[4340]: INFO weewx.engine: Using binding 'wx_binding' to database 'weewx.sdb'
Feb 20 12:20:13 raspberrypi weewxd[4340]: INFO weewx.manager: Starting backfill of daily summaries
Feb 20 12:20:13 raspberrypi weewxd[4340]: INFO weewx.manager: Daily summaries up to date
Feb 20 12:20:13 raspberrypi weewxd[4340]: INFO weewx.engine: Starting main packet loop.
Feb 20 12:20:15 raspberrypi weewxd[4340]: INFO weewx.engine: Main loop exiting. Shutting engine down.
Feb 20 12:20:15 raspberrypi weewxd[4340]: CRITICAL __main__: Caught WeeWxIOError: Acknowledge returned empty: b''
Feb 20 12:20:15 raspberrypi weewxd[4340]: CRITICAL __main__:     ****  Waiting 60.0 seconds then retrying...
root@raspberrypi:~# sudo systemctl status weewx

[Brian LeDuc]

And Its back to erroring....

I don't know what to do here guys...it seems totally sporadic.  back to original driver issues it appear(I realize the snip of th log isnt ful, but it gets the idea across)  I think I'[ll reach out ot those who have had this working with a PI b+ and the WMII and see what specific version of each they were using... Any other ideas?

Thanks!

Loaded: loaded (/usr/lib/systemd/system/weewx.service; enabled; vendor preset: enable

   Active: failed (Result: exit-code) since Wed 2025-02-26 09:02:20 EST; 3min 29s ago
     Docs: https://weewx.com/docs
  Process: 370 ExecStart=/usr/bin/weewxd /etc/weewx/weewx.conf (code=exited, status=4)
 Main PID: 370 (code=exited, status=4)

Feb 26 09:02:20 raspberrypi weewxd[370]: CRITICAL weewx.engine:     ****      self.open(
Feb 26 09:02:20 raspberrypi weewxd[370]: CRITICAL weewx.engine:     ****    File "/usr/l
Feb 26 09:02:20 raspberrypi weewxd[370]: CRITICAL weewx.engine:     ****      self._upda
Feb 26 09:02:20 raspberrypi weewxd[370]: CRITICAL weewx.engine:     ****    File "/usr/l
Feb 26 09:02:20 raspberrypi weewxd[370]: CRITICAL weewx.engine:     ****      fcntl.ioct
Feb 26 09:02:20 raspberrypi weewxd[370]: CRITICAL weewx.engine:     ****  OSError: [Errn
Feb 26 09:02:20 raspberrypi weewxd[370]: CRITICAL __main__: Unable to load driver: [Errn
Feb 26 09:02:20 raspberrypi weewxd[370]: CRITICAL __main__:     ****  Exiting...
Feb 26 09:02:20 raspberrypi systemd[1]: weewx.service: Main process exited, code=exited,
Feb 26 09:02:20 raspberrypi systemd[1]: weewx.service: Failed with result 'exit-code'.