I wrote a larger post which was instantly deleted by the group which I
don't feel like typing all out again. The 2nd was also auto-deleted with
no explanation, I'll try one more time and apologies if multiple posts are
being mailed to anyone.
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Debian / weewx 3.9.1 with mqtt extension / belchertown / nginx / david
vantage pro2
Here is the issue in short:
MQTT appears to be working internally but the payload is rather large and
prevents the website from updating. A smaller fake payload used for
testing is successful. How do I truncate the data in the MQTT payload?
things like soil and leaf wetness are not required.
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Example from current setting obtained at the terminal
mosquitto_sub -h localhost -t weather/#
{"windSpeed10_kph": "0.0", "monthET": "0.0", "cloudbase_meter":
"610.078192345", "outHumidity": "73.0", "pressure_mbar": "1004.21031119",
"rain_cm": "0.0", "dayET": "0.0", "barometer_mbar": "1013.30892876",
"yearRain_cm": "0.0", "consBatteryVoltage_volt": "1.25", "dewpoint_C":
"-2.64673607144", "insideAlarm": "0.0", "inHumidity": "27.0", "sunrise":
"1554924300.0", "windGust_kph": "0.0", "heatindex_C": "1.66666666667",
"dayRain_cm": "0.0", "outsideAlarm1": "0.0", "forecastIcon": "6.0",
"outsideAlarm2": "0.0", "windSpeed_kph": "0.0", "forecastRule": "45.0",
"rainAlarm": "0.0", "altimeter_mbar": "1012.55702971", "windchill_C":
"1.66666666667", "appTemp_C": "-0.674718834607", "outTemp_C":
"1.66666666667", "extraAlarm1": "0.0", "extraAlarm2": "0.0", "extraAlarm3":
"0.0", "extraAlarm4": "0.0", "extraAlarm5": "0.0", "extraAlarm6": "0.0",
"extraAlarm7": "0.0", "extraAlarm8": "0.0", "humidex_C": "1.66666666667",
"rain24_cm": "0.0", "hourRain_cm": "0.0", "inTemp_C": "23.5",
"soilLeafAlarm4": "0.0", "trendIcon": "20.0", "soilLeafAlarm2": "0.0",
"soilLeafAlarm3": "0.0", "usUnits": "16.0", "soilLeafAlarm1": "0.0",
"leafWet4": "0.0", "txBatteryStatus": "1.0", "yearET": "0.0",
"monthRain_cm": "0.0", "rainRate_cm_per_hour": "0.0", "dateTime":
"1554913274.0", "stormRain_cm": "0.0", "sunset": "1554885600.0",
"inDewpoint_C": "3.41268318248"}
The site just shows "Connected. Waiting for data."
--------
Using MQTT-admin I can see payload size errors:
https://i.imgur.com/skL3x35.png
---------
Sending a smaller fake payload from the terminal successfully updates the
website:
mosquitto_pub -h localhost -t "weather" -m '{"UV": "0.68",
"barometer_inHg": "30.4306066431", "outHumidity": "45.8", "maxSolarRad":
"399.067737313", "dewpoint_F": "17.6078693897", "cloudbase_foot":
"4723.66604779", "heatindex_F": "36.5", "altimeter_inHg": "30.3995019668",
"dayRain_in": "0.0", "outTemp_F": "36.5", "appTemp_F": "31.2879264251",
"windchill_F": "15.5", "hourRain_in": "0.0", "humidex_F": "36.5",
"rainRate_inch_per_hour": "0.0", "pressure_inHg": "29.9401590264",
"usUnits": "1.0", "txBatteryStatus": "0.0", "windSpeed_mph": "55.0",
"rain24_in": "5.0", "dateTime": "1542561977", "radiation_Wpm2":
"124.813456"}' -u weewx -P weewx
https://i.imgur.com/lnVyexP.png
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