Can anybody add to sdr.py

[Andrei Volkov]

Hello!

After long work with setting weewx with sdr I had to add to configuration path for rtl_433(running ubuntu 14.04). It started working and I discovered that weewx doesnt support my outside temp/humidity sensor.

Json format output from it

{"time" : "2019-09-25 17:15:12", "model" : "TFA-Twin-Plus-30.3049", "id" : 13, "channel" : 1, "battery" : "OK", "temperature_C" : 8.400, "humidity" : 91, "mic" : "CHECKSUM"}

For somebody tring to tune weewx

my addons for weewx.conf(/etc/weewx/weewx.conf)

[SDR]
    # This section is for the software-defined radio driver.
   
    # The driver to use
    driver = user.sdr
    cmd = rtl_433 -g 19.7 -p -100 -f 433920000 -M utc -F json
    path = /usr/local/bin
    ld_library_path = /usr/share/weewx/lib:/home/andy/rtl-sdr/build/src
    log_unknown_sensors = True
    log_unmapped_sensors = True
   

and path settings running sdr.py with python wich finally worked

sudo PYTHONPATH=/usr/share/weewx python /etc/weewx/bin/user/sdr.py --cmd="rtl_433 -g 19.7 -p -100 -f 433920000 -M utc -F json -R 31"

Best Wishes!

Andy

[Michael]

Hi Andy,

try this one (untesteted):

-------------------------------

class TFATwinPlus303049Packet(Packet):
    # 2019-09-25 17:15:12 :   TFA-Twin-Plus-30.3049
    # Channel: 1
    # Battery: OK
    # Temperature: 8.40 C
    # Humidity: 91 %

    # {"time" : "2019-09-25 17:15:12", "model" : "TFA-Twin-Plus-30.3049", "id" : 13, "channel" : 1, "battery" : "OK", "temperature_C" : 8.400, "humidity" : 91, "mic" : "CHECK  SUM"}
    IDENTIFIER = "TFA-Twin-Plus-30.3049"
    PARSEINFO = {
        'Rolling Code': ['rolling_code', None, lambda x: int(x)],
        'Channel': ['channel', None, lambda x: int(x)],
        'Battery': ['battery', None, lambda x: 0 if x == 'OK' else 1],
        'Temperature': [
            'temperature', re.compile('([\d.-]+) C'), lambda x: float(x)],
        'Humidity': ['humidity', re.compile('([\d.]+) %'), lambda x: float(x)]}

    @staticmethod
    def parse_text(ts, payload, lines):
        pkt = dict()
        pkt['dateTime'] = ts
        pkt['usUnits'] = weewx.METRIC
        pkt.update(Packet.parse_lines(lines, TFATwinPlus303049Packet.PARSEINFO))
        return Hideki.insert_ids(pkt, TFATwinPlus303049Packet.__name__)

    @staticmethod
    def parse_json(obj):
        pkt = dict()
        pkt['dateTime'] = Packet.parse_time(obj.get('time'))
        pkt['usUnits'] = weewx.METRIC
        pkt['rolling_code'] = obj.get('rc')
        pkt['channel'] = obj.get('channel')
        pkt['temperature'] = Packet.get_float(obj, 'temperature_C')
        pkt['humidity'] = Packet.get_float(obj, 'humidity')
        pkt['battery'] = 0 if obj.get('battery') == 'OK' else 1
        return Hideki.insert_ids(pkt, TFATwinPlus303049Packet.__name__)
---------------------------------------------

and add this

TFATwinPlus303049Packet

under

class PacketFactory(object): 

Michael

[Andrei Volkov]

Hello !

Thanks Michael!

Added this to sdr.py

Got in log

Sep 26 20:15:52 andy-ThinkCentre-M57p weewx[31498]: sdr: MainThread: lines=[]
Sep 26 20:16:19 andy-ThinkCentre-M57p weewx[31498]: message repeated 9 times: [ sdr: MainThread: lines=[]]
Sep 26 20:16:23 andy-ThinkCentre-M57p weewx[31498]: sdr: MainThread: lines=['{"time" : "2019-09-26 17:16:19", "model" : "TFA-Twin-Plus-30.3049", "id" : 15, "channel" : 1, "battery" : "OK", "temperature_C" : 5.600, "humidity" : 97, "mic" : "CHECKSUM"}\n']
Sep 26 20:16:23 andy-ThinkCentre-M57p weewx[31498]: sdr: MainThread: unmapped: [] ({'battery.1:None.TFATwinPlus303049Packet': 0, 'humidity.1:None.TFATwinPlus303049Packet': 97.0, 'temperature.1:None.TFATwinPlus303049Packet': 5.6, 'usUnits': 16, 'dateTime': 1569518179})
Sep 26 20:16:26 andy-ThinkCentre-M57p weewx[31498]: sdr: MainThread: lines=[]

So had to change SDR section of weewx.conf to

[SDR]
    # This section is for the software-defined radio driver.
   
    # The driver to use
    driver = user.sdr
    cmd = rtl_433 -g 19.7 -p -100 -f 433920000 -M utc -F json
    path = /usr/local/bin
    ld_library_path = /usr/share/weewx/lib:/home/andy/rtl-sdr/build/src
    log_unknown_sensors = True
    log_unmapped_sensors = True

    [[sensor_map]]
        outTemp = temperature.1:None.TFATwinPlus303049Packet
        outHumidity = humidity.1:None.TFATwinPlus303049Packet
    outBatteryStatus = battery.1:None.TFATwinPlus303049Packet

Log now shows

Sep 26 20:38:47 andy-ThinkCentre-M57p weewx[5604]: sdr: MainThread: lines=['{"time" : "2019-09-26 17:38:43", "model" : "TFA-Twin-Plus-30.3049", "id" : 15, "channel" : 1, "battery" : "OK", "temperature_C" : 4.900, "humidity" : 98, "mic" : "CHECKSUM"}\n']
Sep 26 20:38:47 andy-ThinkCentre-M57p weewx[5604]: sdr: MainThread: packet={'outHumidity': 98.0, 'outTemp': 4.9, 'dateTime': 1569519523, 'usUnits': 16, 'outBatteryStatus': 0}
Sep 26 20:38:50 andy-ThinkCentre-M57p weewx[5604]: sdr: MainThread: lines=[]

And works like a charm - webpage started showing temp and humidity!

Thanks very much again!

Best wishes!

Andy

среда, 25 сентября 2019 г., 20:29:10 UTC+3 пользователь Andrei Volkov написал:

[mwall]

support for tfa twin added to weewx-sdr at commit b571bf3

thank you andrei and michael!