The OWFS developers replied back with the news that python-ow is no longer
supported. You can read the discussion at
https://sourceforge.net/p/owfs/mailman/message/36159169/
However, Stefano Miccoli was kind enough to take the time to provide a
detailed workaround. The following is his guidance (with a few edits and
additional output) which is working perfectly on my Stretch RPi weewx
system:
- Start from a fresh system (no other owfs components installed) and
install owserver and ow-shell:
$ sudo apt install owserver ow-shell
- Delete (as root) the hyper-verbose default debian /etc/owfs.conf file
and use this minimal config:
server: usb = all
server: port = 4304
- Enable and start the owserver
$ sudo systemctl stop owserver
$ sudo systemctl enable owserver
$ sudo systemctl start owserver
- Confirm that owserver is running:
$ systemctl status owserver
owserver.service - LSB: 1-wire TCP server
Loaded: loaded (/etc/init.d/owserver; generated; vendor preset: enabled)
Active: active (running) since Tue 2017-12-19 12:39:53 PST; 23h ago
Docs: man:systemd-sysv-generator(8)
Process: 545 ExecStart=/etc/init.d/owserver start (code=exited,
status=0/SUCCESS)
CGroup: /system.slice/owserver.service
└─573 /usr/bin/owserver -c /etc/owfs.conf --pid-file
/var/run/owfs/owserver.pid
Dec 19 12:39:51 wx systemd[1]: Starting LSB: 1-wire TCP server...
Dec 19 12:39:52 wx OWFS[573]: DEFAULT: ow_daemon.c:(144) Entered
background mode, quitting.
Dec 19 12:39:52 wx OWFS[573]: DEFAULT: ow_usb_msg.c:(214) Opened USB
DS9490 bus master at ...
Dec 19 12:39:52 wx OWFS[573]: DEFAULT: ow_usb_cycle.c:(128) Set DS9490
1:5 unique id ...
Dec 19 12:39:53 wx owserver[545]: Starting 1-Wire TCP Server: owserver.
Dec 19 12:39:53 wx systemd[1]: Started LSB: 1-wire TCP server.
- Test your setup
$ owdir
/81.380F31000000
/1F.A84D02000000
/1F.235602000000
/1F.D74E02000000
/bus.0
/uncached
/settings
/system
/statistics
/structure
- Install and test owpython. (Run the python client as an unprivileged
user, no need to run as root or install a permissions file in
/etc/udev/rules.d/.)
$ sudo apt install python-ow
$ python
>>> import ow
>>> ow.init('localhost:4304')
>>> ow.owfs_get('/')
You should not see any error messages.
Finally change weewx.conf
from
[OWFS]
interface = u
to
[OWFS]
interface = localhost:4304
Run weewx. As mentioned above, this worked for me.
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