JeeLinkLogMQTT

JeeLinkLogMQTT

Backend for JeeLabs JeeLink receiver.

Receives sensor data from LaCrosse 868MHz temperature/humidity sensors, logs data to InfluxDB and publishes via MQTT. Sensor type tested working: LaCrosse/TechnoLine TX29 DTH-IT.

Installation

Requires Python 3 (default on Debian/RaspberryOS Buster or Bullseye).

• install Python3 PIP: $ sudo apt-get install python3-pip
• install required Python modules: pip3 install pyserial influxdb paho-mqtt pyyaml
• copy folder jeelinklog to /home/pi
• edit config files as needed. A minimum of 1 sensor must be configured before starting, so leave one from the examples there, configure it as desired and then find out the ID of your sensor and edit it afterwards.

• test if it works:

  cd /home/pi
  ./jeelinklog.py -v  (start in verbose mode)
  

  • put batteries in one sensor - you should see some output showing sensor data.
  • Find your sensor ID:
    • either look on the verbose output and find the one stating Batt_New: 1
    • or have a look in the logfile /home/pi/logs/jeelinklog/jeelink_new_sensors.log
    • or check the subfolder /home/pi/logs/jeelinklog/new - here JeelinkLog will create a file for each sensor received with "Batt_New flag on". Filename = LaCrosse ID.
  • exit verbose mode (ctrl+C)
  • Configure Sensor ID in jeelinklog_sensors.yml
  • delete corresponding files in /home/pi/logs/jeelinklog/new and /home/pi/logs/jeelinklog/unknown
    

• install systemd service:

  cd /home/pi/jeelinklog
  sudo cp jeelinklog.service /lib/systemd/system
  sudo systemctl daemon-reload
  sudo systemctl enable jeelinklog.service
  sudo systemctl start jeelinklog.service
  

• check if service is running:

  sudo systemctl status jeelinklog.service
  

Configuration

The configuration is split in the following files:

• jeelinklog.ini: base configuration
• jeelinklog_influxdb.yml: YAML configuration file for InfluxDB instances
• jeelinklog_sensors.yml: YAML configuration containing the sensors

configuring InfluxDB-Instances

jeelinklog_influxdb.yml format:

temphum:                            instance name used in sensor configuration
    host: localhost
    port: 8086
    username: jeelinklog            [optional] comment out if authentication is not used
    password: password              [optional] comment out if authentication is not used
    database: TempHum               InfluxDB database name - must already exist
    measurement: TempHum            InfluxDB measurement name, will be added automatically if it does not already exist
    fieldnames:
        temperature: temp
        humidity: hum
    datatypes:
        temperature: float
        humidity: int

You can add as many InfluxDB instances as you need. Please mind correct indenting in YAML files!

configuring Sensors

jeelinklog_sensors.yml format:

Aussen:                             Sensor name
    LaCrosseID: 1                   LaCrosse Sensor ID, randomly generated on battery change
    DomoticzIdx: 94                 [optional] Sensor ID in Domoticz (deprecated)
    Topic_Temp: "Test/Atemp"        [optional] additional MQTT topic to publish temperature values of that sensor
    Topic_Hum: "Test/Ahum"          [optional] additional MQTT topic to publish humidity values of that sensor
    InfluxDB_Instance: TempHum      InfluxDB instance name to use (as set in jeelinklog_influxdb.yml)
    isOutsideTempSensor: true       true or false

DomoticzIdx can be commented out or removed if not needed. Topic_Temp and Topic_Hum is optional, can be left commented or removed. InfluxDB_Instance MUST be a valid name configured in jeelinklog_influxdb.yml.

Outside sensors

isOutsideTempSensor: true will include that sensor in mean/average outside temperature calculation. Set it to true on all sensors that are (properly) located outside to enhance accuracy. You can add as many sensors as you need. Please mind correct indenting in YAML files!

MQTT output

All data is published to LaCrosse/ topic-prefix (can be configured in jeelinklog.ini).

[mqtt]
topic_prefix = LaCrosse

For sensors with a configured Topic_Temp and/or Topic_Hum in jeelinklog_sensors.yml, values will be published to these topics additionally.

Outside temperature/humidity (mean/average of multiple sensors if configured) is published to topics set in jeelinklog.ini:

[mqtt]
topic_prefix_outside_temphum = wetter/atemphum
# additional single topics for outside temp/hum
topic_outside_temp = wetter/atemp
topic_outside_hum = wetter/ahum

Example output:

Topic	Payload
LaCrosse/Sensorname/temperature	20.2
LaCrosse/Sensorname/humidity	56
LaCrosse/Sensorname/battery	OK
LaCrosse/Sensorname/batteryNew	NO
LaCrosse/Sensorname/availability	available
LaCrosse/Sensorname/lastUpdate	2022-11-08 09:22:42
LaCrosse/Sensorname/json	{"temperature":20.2, "humidity":56, "battery":"OK"}
LaCrosse/Sensorname/TempHumText	20.2° 56%