Help with mqtt templating (from Domoticz)

Configuration
10

So here’s one way …

I have a “common” mqtt channel for multiple iBeacons and need to extract the battery level for a specific one. I’m using automation to monitor/filter the mqtt channel and extract it’s encoded battery level. I then use the community’s variable component to store and display in the UI:

variable:
  ibeacon_battery:
    value: 0

automation:
  trigger:
    platform: mqtt
    topic: 'room_presence/#'
  condition:
    condition: template
    value_template: '{{ trigger.payload_json.id == "UUID-1-1" }}'
  action:
    service: variable.set_variable
    data_template:
      variable: ibeacon_battery
      value: '{{ trigger.payload_json.minor  | int // 2**8 }}'