Hi vince,
I am doing exactly that : I setup raspberry+weewx for other, and it must be
turn-key.
After 4 years of enhancing my system, it works very well and yes, it is
possible.
I use Davis dataloggers for all the stations of our nonprofit organisation.
Some old station have serial datalogger + serial-to-USB converter, but
quite honestly, USB datalogger are not less stable than serial ones, and we
buy exclusively USB dataloggers now.
>From my experience, all the problem I did see with the USB datalogger is
linked to Windows OS for users of the old Davis weatherlink software, not
really the USB. When I migrated these stations from
PC/Windows/USB/Weatherlink to Raspberry Pi/Raspbian/USB/Weewx, USB
dataloggers works like a charm ...
I did try the datalogger from Belfryboy once, it worked well until it
didn't respond at all ... :-/ .. I finally replaced it with a Davis USB
datalogger.
Concerning the port of the driver, I always use this for security :
[Vantage]
...
port = /dev/vp2
But for this to works and understand the following, you must take a look at
this section of the documentation :
http://weewx.com/docs/usersguide.htm#udev_script
I created the file /etc/udev/rules.d/vpro.rules with this content :
# Automount USB cable to port /dev/vp2
# Different versions of Davis dataloggers
ACTION=="add", SUBSYSTEM=="tty", ATTRS{idVendor}=="10c4",
ATTRS{idProduct}=="ea60", MODE="0660", GROUP="weewx", SYMLINK+="vp2",
TAG+="systemd", ENV{SYSTEMD_WANTS}="weewx.service"
ACTION=="add", SUBSYSTEM=="tty", ATTRS{idVendor}=="10c4",
ATTRS{idProduct}=="ea61", MODE="0660", GROUP="weewx", SYMLINK+="vp2",
TAG+="systemd", ENV{SYSTEMD_WANTS}="weewx.service"
# Datalogger clone by Belfryboy
ACTION=="add", SUBSYSTEM=="tty", ATTRS{idVendor}=="0403",
ATTRS{idProduct}=="6015", MODE="0660", GROUP="weewx", SYMLINK+="vp2",
TAG+="systemd", ENV{SYSTEMD_WANTS}="weewx.service"
With this, it works out-of-the box for me, when I plug the USB datalogger,
it automatically shows under /dev/vp2.
So if for any reason, there is another USB device connected, it is not a
problem.
But in the future, it could be new versions of dataloggers showing up and I
would have to add new lines in /etc/udev/rules.d/vpro.rules and make it
work, even far away !
For this, I had setup a VPN server dedicated to this purpose.
When the raspberry pi are alive, they try to connect at boot on the VPN. So
if there is a weewx/skin/system configuration problem for any reason, I can
SSH it on the VPN and solve the issue. ;)
But I will insist on the fact that the end-user MUST know that this VPN
exists, it gives you access to his network, so it is important that the
user accepts it, some users asked me to turn it off and I did.
Hope I helped a bit.
Mickael
Le jeudi 20 juin 2019 22:49:08 UTC+4, vince a écrit :
>
> I'm helping somebody on the other US coast set up a new Vue and weewx
> raspi and wanted some thoughts from folks who've set up remote sites
> before. The basic story is likely similar to the folks here who've set up
> sites for schools or park systems etc:
>
> - the recipients will unbox and physically install the gear
> - they will be responsible for power and network connectivity
> - they will need to do nothing else and it should just-plain-work
>
>
> Setting up a SD card with Raspbian and Weewx is of course easy, but I need
> to be able to set the /dev/whatever device name for weewx.conf
>
> - should I buy the USB datalogger for the Vue, or is it still
> best-practice to use serial datalogger and serial-to-USB converter ?
> - is it bet-the-ranch that it'll be /dev/ttyUSB0 if nothing else is
> plugged into the pi ?
>
> I guess it really comes down to :
>
> - is it wisest to ship all the gear initially for me to set up, and
> then have me rebox+ship it all to them for re-assemble at their location ?
> - or is it reasonable that I can pre-configure the pi SD card and just
> ship them that and have it 'absolutely' work there ?
>
>
> Thoughts either way ?
>
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