I am currently searching for a replacement wifi receiver for my FO WH-2650
European clone. I decided in the interim that I would have a play around
with a SDR USB dongle.
Followed the instructions to install rtl_sdr and rtl_433 along with the sdr
extension.
1. The WH-650 clone is an 868Mhz version and I have been able to map the
the outdoor sensor (WH65B). However the internal sensor (WH32B or WH31-
not sure) which is also 868Mhz does not show at all.
2. Extract from my Webmin systemd log when starting WeeWX: -
Executing /etc/init.d/weewx status ..
● weewx.service - LSB: weewx weather system
Loaded: loaded (/etc/init.d/weewx; generated; vendor preset: enabled)
Active: active (running) since Fri 2019-02-22 19:03:07 GMT; 22h ago
Docs: man:systemd-sysv-generator(8)
Process: 23719 ExecStop=/etc/init.d/weewx stop (code=exited,
status=0/SUCCESS)
Process: 23732 ExecStart=/etc/init.d/weewx start (code=exited,
status=0/SUCCESS)
CGroup: /system.slice/weewx.service
└─23747 python /usr/bin/weewxd --daemon
--pidfile=/var/run/weewx.pid /etc/weewx/weewx.conf
Feb 23 17:31:46 piweather weewx[23747]: engine: retrying...
Feb 23 17:31:46 piweather weewx[23747]: engine: Using configuration file
/etc/weewx/weewx.conf
Feb 23 17:31:46 piweather weewx[23747]: engine: Loading station type SDR
(user.sdr)
Feb 23 17:31:46 piweather weewx[23747]: sdr: MainThread: driver version is
0.58
Feb 23 17:31:46 piweather weewx[23747]: sdr: MainThread: sensor map is
{'outTemp': 'temperature.71.FOWH65BPacket', 'outHumidity':
'humidity.71.FOWH65BPacket', 'UV': 'uv_index.71.FOWH65BPacket', 'radiation':
'light.71.FOWH65BPacket', 'rain': 'rain_total.71.FOWH65BPacket', 'windDir':
'wind_dir.71.FOWH65BPacket', 'windSpeed': 'wind_speed.71.FOWH65BPacket',
'windGust': 'wind_gust.71.FOWH65BPacket'}
Feb 23 17:31:46 piweather weewx[23747]: sdr: MainThread: deltas is
{'strikes': 'strikes_total', 'rain': 'rain_total'}
Feb 23 17:31:46 piweather weewx[23747]: sdr: MainThread: startup process
'rtl_433 -f 868M -s 1024k -M utc -F json -G'
Feb 23 17:31:46 piweather weewx[23747]: import of driver failed: failed to
start process: [Errno 2] No such file or directory (<class
'weewx.WeeWxIOError'>)
Feb 23 17:31:46 piweather weewx[23747]: engine: Unable to load driver:
failed to start process: [Errno 2] No such file or directory
Feb 23 17:31:46 piweather weewx[23747]: **** Waiting 60 seconds then
retrying...
I am not clear which driver is being referred to here.
WeeWX is installed with DEB.
The SDR section from weewx.conf is: -
[SDR]
# This section is for the software-defined radio driver.
# The driver to use
driver = user.sdr
cmd = rtl_433 -f 868M -s 1024k -M utc -F json -G
[[sensor_map]]
outTemp = temperature.71.FOWH65BPacket
outHumidity = humidity.71.FOWH65BPacket
UV = uv_index.71.FOWH65BPacket
radiation = light.71.FOWH65BPacket
rain = rain_total.71.FOWH65BPacket
windDir = wind_dir.71.FOWH65BPacket
windSpeed = wind_speed.71.FOWH65BPacket
windGust = wind_gust.71.FOWH65BPacket
Would appreciate any thoughts and observations.
Many thanks,
Steepleian
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