OpenMQTTGateway template sensor problem

@botts wrote:

Hi All,

I am trying to setup Room Presence with OMG, with the use of my mifit band. But I am unable to get the distance attribute of a specific Bluetooth device as a sensor state from the MQTT data.

Example of output from OWG:

{"id":"xx:xx:xx:xx:xx:xx","manufacturerdata":"W","rssi":-45,"distance":0.06662}

I can get the values as independent sensors from the MQTT state topic via ‘value_json’

But I cannot get a value template to display the distance value of a specific device as the sensor state.

I have set up the following to make sure the values are accessible

sensor:

  - platform: mqtt
    name: "band_distance"
    state_topic: "home/home_presence/OpenMQTTGateway_ESP32_BLE"
    value_template: "{{ value_json.distance }}"

And

  - platform: mqtt
    name: "band_id"
    state_topic: "home/home_presence/OpenMQTTGateway_ESP32_BLE"
    value_template: "{{ value_json.id }}"  

These both output their respective states correctly.

But if I try the following to output the distance value of a specific scanned “ID” it fails?

  - platform: mqtt
    name: "miband_distance"
    state_topic: "home/home_presence/OpenMQTTGateway_ESP32_BLE"
    unit_of_measurement: 'm'
    value_template: >-
      {% if value_json.id == "xx:xx:xx:xx:xx:xx" %} 
      {{value_json.distance}}
      {% else %}
        not detected
      {% endif %}     

I get state of sensor as “not detected”

---

I have also tried using state_topic of the specific Bluetooth device using"

state_topic: 'home/OpenMQTTGateway_ESP32_BLE/BTtoMQTT/xxxxxxxxxxxx/

but I get no values using the above working independent value methods

In the Home Assistant template developer tool, the JSON output works fine???

EG.

{% set value_json = {"id":"xx:xx:xx:xx:xx:xx","manufacturerdata":"W","rssi":-45,"distance":0.06662} %}
      {% if value_json.id == "xx:xx:xx:xx:xx:xx" %} 
      {{value_json.distance}}
      {% else %}
        not detected
      {% endif %} 

Output is: 0.06662

Can someone please tell me where I am going wrong?

Thanks in Advance!

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