I'm having trouble using weewx-interceptor, with WS-5000 (same as a WS-2000
with the ultrasonic anemometer). I would like to keep WU and Ambient
connections operating, and I want to catch the additional temperature
sensors so I've been trying to sniff the ambient connection on the router.
Following examples in the weewx-interceptor documentation, I started off
with something like the following
Router (edge router x):
sudo tcpdump -n -i switch0 dst 104.31.82.184 and port 80 | nc 192.168.35.XXX
9001
Weewx install host, Raspberry Pi:
sudo PYTHONPATH=/usr/share/weewx python /usr/share/weewx/user/interceptor.py
--device=wu-client --mode=listen --port 9001 --debug
It quickly became apparent that I can't just dump the tcpdump output to the
interceptor, it's expecting to be listening for the 'GET' line, and only
that, so I modified my capture code to the following:
sudo tcpdump -vAls0 -i switch0 dst 104.31.82.184 and dst port 80| awk '{print
$1, $2, "\n"; system("") }' | egrep --line-buffered "^GET" | nc 192.168.
35.XXX 9001
I added system("") to awk, and --line-buffered to grep to keep them from
buffering, but I find that nc is also buffering, and the
weewx-interceptor, is not getting data. I have verified that echoing a
test GET line string works correctly:
echo GET
'/weatherstation/updateweatherstation.phpID=NopeNopeNope&PASSWORD=NadaNada&indoortempf=69.1&tempf=69.3&dewptf=40.5&windchillf=69.3&indoorhumidity=49&humidity=35&windspeedmph=4.0&windgustmph=10.7&winddir=203&absbaromin=29.315&baromin=30.115&rainin=0.000&dailyrainin=0.000&weeklyrainin=0.000&monthlyrainin=0.000&yearlyrainin=0.000&solarradiation=568.82&UV=5&dateutc=2020-05-03%2023:14:14&softwaretype=AMBWeatherV4.1.7&action=updateraw&realtime=1&rtfreq=5'
'HTTP/1.0' | nc 192.168.35.XXX 9001
I'm at my wit's end trying to figure this out, and frankly this is so
jerry-rigged at this point, I'm concerned about the stability of the
solution. My next step would be to write a python version of the entire
pipe.
If anyone else has faced this particular setup, I or anything close, I
would appreciate some example code, scripts, or setup details. Thanks!
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