Create a New Sensor with New entity in Home Assistant

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1

Hello,

I have recently started with Home assistant and got stuck with a use case.

The flow I am imagining is: when any bluetooth device is connected to my phone (smart band, headphone,etc.) if any of them has low battery a notification will be added to my home assistant.

The way I thought I would accomplish this is:

  1. Use automate in phone to get bluetooth battery %of connected device - done
  2. Send this via a http request to Home assistant - not done
  3. Update a sensor to store the device name and battery % - not done
  4. Show some notification - not done

Now I am stuck at creating a sensor, I followed some example and created one:

  - platform: template
    sensors:
      random_number:
        friendly_name: "Bluetooth Battery"
        value_template: >-
          {% if is_state('sun.sun', 'above_horizon') %}
            Charge
          {% else %}
            Don't Charge
          {% endif %}

But I am not getting how to use a new entity and store the bluetooth device name and battery %. sun.sun is a preexisting entity.

I know this is basic and I am missing something pretty obvious, but any guidance is appreciated.

2

can you post this automation?

3

There is a flow from the community called BlueBatt, I am using that one. Just note not all device broadcast their battery status. It won’t work for those. The last HTTP part is mine.

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4

Ok, so what does the last step do? That’s the info i’m looking for. Post the http request please.