Exception when running miflora-mqtt-daemon.py

[21:02:34] root@smarthome:/opt/miflora-mqtt-daemon# python3 /opt/miflora-mqtt-daemon/miflora-mqtt-daemon.py

Xiaomi Mi Flora Plant Sensor MQTT Client/Daemon
Source: https://github.com/ThomDietrich/miflora-mqtt-daemon

[2019-01-15 21:02:47] Connecting to MQTT broker ...
Adding sensor to device list and testing connection ...
Name:          "Flowercare"
Internal name: "Flowercare"
Device name:   "Flower care"
MAC address:   C4:7C:XX:XX:XX:XX
Firmware:      2.7.0
[2019-01-15 21:02:52] Initial connection to Mi Flora sensor "Flowercare" (C4:7C:8D:67:58:3B) successful

[2019-01-15 21:02:52] Announcing Mi Flora devices to MQTT broker for auto-discovery ...
Traceback (most recent call last):
  File "/opt/miflora-mqtt-daemon/miflora-mqtt-daemon.py", line 251, in <module>
    mqtt_client.publish('{}/$announce'.format(base_topic), json.dumps(flores_info), retain=True)
  File "/usr/local/lib/python3.5/dist-packages/paho/mqtt/client.py", line 1057, in publish
    raise ValueError('Publish topic cannot contain wildcards.')
ValueError: Publish topic cannot contain wildcards.

I’ve commented in base_topic = mqttjson to get it into OpenHAB items. running the script with this line commented out it works perfect, but the OpenHAB items never get updated. Can someone help?

[Markkuuss]

Maybe that’ll help you. I’m using the new MQTT plugin from Openhab 2.4 with the internal broker.

Thing file:

Bridge mqtt:systemBroker:MqttBroker "MQTT Broker" [ brokerid="embedded-mqtt-broker" ]
{
    Thing topic FicusBenjamin "Ficus Benjamin"
    {
        Channels:
            Type number : light         "Lichtstärke"           [ stateTopic="miflora/FicusBenjamin", transformationPattern="JSONPATH:$.light" ]
            Type number : battery       "Batterieladung"        [ stateTopic="miflora/FicusBenjamin", transformationPattern="JSONPATH:$.battery" ]
            Type number : temperature   "Lufttemperatur"        [ stateTopic="miflora/FicusBenjamin", transformationPattern="JSONPATH:$.temperature" ]
            Type number : conductivity  "Bodenfruchtbarkeit"    [ stateTopic="miflora/FicusBenjamin", transformationPattern="JSONPATH:$.conductivity" ]
            Type number : moisture      "Bodenfeuchtigkeit"     [ stateTopic="miflora/FicusBenjamin", transformationPattern="JSONPATH:$.moisture" ]
    }
}

Item File:

Number:Illuminance      Miflora_Ficus_Light         "Lichtstärke Ficus [%d lx]"             <light>         { channel="mqtt:topic:MqttBroker:FicusBenjamin:light" }
Number:Dimensionless    Miflora_Ficus_Battery       "Batterieladung Ficus [%d %%]"          <battery>       { channel="mqtt:topic:MqttBroker:FicusBenjamin:battery" }
Number:Temperature      Miflora_Ficus_Temperature   "Lufttemperatur Ficus [%.1f °C]"        <temperature>   { channel="mqtt:topic:MqttBroker:FicusBenjamin:temperature" }
Number                  Miflora_Ficus_Conductivity  "Bodenfruchtbarkeit Ficus [%d µS/cm]"   <lawnmower>     { channel="mqtt:topic:MqttBroker:FicusBenjamin:conductivity" }
Number:Dimensionless    Miflora_Ficus_Moisture      "Bodenfeuchtigkeit Ficus [%d %%]"       <humidity>      { channel="mqtt:topic:MqttBroker:FicusBenjamin:moisture" }

[ThomDietrich]

Results are published to the MQTT broker but not retrieved by openHAB. Should be simple to debug. My best guess is that with openHAB 2.4 you are now using the new MQTT binding and need to adapt your configuration. The one generated with --gen-openhab is for the old binding and won’t help you much. Either install the old binding or modify your configuration. Both should be easy. If you need help, please contact the openHAB community.

I’ve moved into a new apartment and did not yet implement the needed changes for this daemon. The solution will be #57 - to update the Homie reporting_method and have plants automatically discovered by openHAB 💪