Filtering event captured from android

Configuration
1

Hi, im getting started with HA, im listening for an Android intent (headphone battery) but the problem is, when i poweroff headset, the battery level is sent as -1.
How can i filter this? and only allow numbers in range 0-100?
for reference basically I copied this:

Capturing bluetooth device battery level from android intent

Cheers

2

post your code so far please

3

Hello, thanks for your help. This is my current code. Im readong about filters now. Since my problem is that the attribute is set to ‘-1’ on disconnect, the numeric_state seems to be the right option.
Still no idea on how to tie those down.

automations.yaml

- id: '1641488324785'
  alias: Bateria auriculares BT
  description: ''
  trigger:
  - platform: event
    event_type: android.intent_received
    context:
      user_id:
      - 453e6b7d64204ceb9d2f1b106431e37c
  condition: []
  action:
  - device_id: dcbe52169baf3ac077c3d0e345ba5a64
    domain: mobile_app
    type: notify
    message: 'Bat lvl4 {{ trigger.event.data["android.bluetooth.device.extra.BATTERY_LEVEL"] }}'
    title: ha notifica
  mode: single

This is the invalid event I want to filter

{
    "event_type": "android.intent_received",
    "data": {
        "android.bluetooth.device.extra.BATTERY_LEVEL": "-1",
        "android.bluetooth.device.extra.DEVICE": "CA:BD:EF:01:13:FB",
        "intent": "android.bluetooth.device.action.BATTERY_LEVEL_CHANGED",
        "device_id": "da76d54287d24f75"
    },
    "origin": "REMOTE",
    "time_fired": "2022-01-06T16:24:14.445323+00:00",
    "context": {
        "id": "019f0e994747b656756c38bf089b6013",
        "parent_id": null,
        "user_id": "453e6b7d64204ceb9d2f1b106431e37c"
    }
}
4 
  action:
  - device_id: dcbe52169baf3ac077c3d0e345ba5a64
    domain: mobile_app
    type: notify
    message: >
      {% set battery_level = trigger.event.data["android.bluetooth.device.extra.BATTERY_LEVEL"]%}
      {% if battery_level != -1%}
        'Bat lvl4 {{ battery_level }}'
      {% endif %}
    title: ha notifica
  mode: single
5

Thanks!!! I’ll try that as soon as I get back home, for what i understand it’s what i need. If I wanted to use is_number filter, is it possible? I can’t figure how to do it.