Monitoring only wanted entities

[Protoncek]

Hi and many thanks for this package! However, as on previous one, i again wonder if you can add a package, which would only monitor entites i want, and not all of them? I'd like to monitor only my wifi devices, so to monitor only "sensor.wifi_signal_strength_device". It would be pretty painfull if i'd have to enter all my entities in ignored list, since there are over 200 of them.

Currently i have your old "thing" and all my monitored entities in "grooup.included_entities" (around 15 of them). Would it be possible to use my current group or must i enter these entities in new package yaml?

I'm not so skilled in this language, so i can't do it myself...

Thanks!

EDIT: stupid me... i found your change at the very end. Only thing i don't know (yet) is WHERE to put monitored entities?

[jazzyisj]

If you are using an older version of the sensor, I recommend changing to this one. Just copy the ignored_entities group from the old package and paste it into this new one, then delete the old package.

You can also have more than one version of a sensor of this type in your config. Just add them to this package file and make sure you give the sensors different names (eg unavailable_entities, unavailable_wifi_devices, etc. etc). They can all share the same ignored_entities group so you only need to declare this group once and it will be available anywhere you need to use it.

    template:
      - sensor:
          - unique_id: unavailable_entities
            name: 'Unavailable Entities'
            unit_of_measurement: entities
            state: >
              {% if state_attr('sensor.unavailable_entities','entities') != none %}
                {{ state_attr('sensor.unavailable_entities','entities')|count }}
              {% endif %}
            attributes:
              entities: >
                {% set ignore_sec = 60 %}
                {% set ignore_ts = (now().timestamp() - ignore_sec)|as_datetime %}

        ETC ETC
    
          - unique_id: unavailable_wifi_devices
            name: 'Unavailable Wifi Devices'
            unit_of_measurement: entities
            state: >
              {% if state_attr('sensor.unavailable_wifi_devices','entities') != none %}
                {{ state_attr('sensor.unavailable_wifi_devices','entities')|count }}
              {% endif %}
            attributes:
              entities: >
                {% set ignore_sec = 60 %}
                {% set ignore_ts = (now().timestamp() - ignore_sec)|as_datetime %}
                
        ETC ETC

To monitor only sensor entities who's entity_id match a string you can first narrow it down to the sensor domain, then select only entities that contain the string "wifi_signal_strength_" in their entity_id.

{% set ignore_ts = (now().timestamp() - ignore_sec)|as_datetime %}
{{ states
  |selectattr('domain','eq','sensor')
  |selectattr('entity_id','match','wifi_signal_strength_')
  |rejectattr('entity_id','in',state_attr('group.ignored_entities','entity_id'))
  |rejectattr('last_changed','ge',ignore_ts)
  |selectattr('state','in',['unavailable','unknown','none'])|map(attribute='entity_id')|list }}

If you need to match MORE than one string it gets a little more complicated because you have to iterate the states object for each string you want a match for then add the lists together.

To match on a name instead of an entity_id you can change this line

|selectattr('entity_id','match','wifi_signal_strength_')

to something like this

|selectattr('name','match','WIFI Signal Strength')

Don't forget to restart Home Assistant!

[Protoncek]

Thanks for your reply!

So, if i understand correct above example should monitor all entities , beginning with "sensor.wifi_signal_strength_", correct? Ok, except ones in ignored group, of course.

However, sensor like this:

template:
  - sensor:
      - unique_id: unavailable_wifi_devices
        name: "Unavailable Wifi Devices"
        unit_of_measurement: entities
        state: >
          {% if state_attr('sensor.unavailable_wifi_devices','entities') != none %}
            {{ state_attr('sensor.unavailable_wifi_devices','entities')|count }}
          {% endif %}
        attributes:
          entities: >
            {% set ignore_seconds = 60 %} 
            {% set ignore_ts = (now().timestamp() - ignore_sec)|as_datetime %}
            {{ states
              |selectattr('domain','eq','sensor')
              |selectattr('entity_id','match','wifi_')
              |rejectattr('entity_id','in',state_attr('group.ignored_entities','entity_id'))
              |rejectattr('last_changed','ge',ignore_ts)
              |selectattr('state','in',['unavailable','unknown','none'])|map(attribute='entity_id')|list }}

gives me a blank state, in developer tools attribute "entities" is "null", altohugh i do have a number of sensors, starting with "sensor.wifi_...": like

• sensor.wifi_room_pavel
• sensor.wifi_garage
• sensor.wifi_outdoor

From old sensor experience i believe that when all wifi.... sensors are ok it should show zero.

In ESPHome i always name my wifi signal strength sensor like this, only last part is named after location.
Where did i "mess up"?

EDIT: ah....i found an error in variable "ignore_sec" instead "ignore_seconds". Now i get zero value, which means that although entity works it founds none unavailable enitites. But they are...

Maybe a solution like yours, but only change "ignored" to "monitored" would be easier...if it's possible

[Protoncek]

YEAH!! Works!
sorry for double post, but i think i found a solution and it would be more readable in a separate post...

Thank god for developer tools and "template" section - i did some tinkering and tryouts, and got it to work.

For above "script" to work i've had to change
|selectattr('entity_id','match','wifi_')
into:
|selectattr('entity_id','match','sensor.wifi_')
Now i get all my "sensor.wifi_...." entities inside and i can ignore those, which are "occasional" (like power switches...).
Now i have to get to work my warning to my phone, but that won't be a problem.

Thank god for developer tools and "template" section - i did some tinkering and tryouts, and got it to work.

[jazzyisj]

i found an error in variable "ignore_sec" instead "ignore_seconds"

@Protoncek
You must have caught me in between commits. I did change that variable name. Glad you got it figured out!

[jazzyisj]

Another user discovered a bug you should also fix. I changed something at one point and forgot to change one thing.

Change |rejectattr('last_changed','lt',ignore_ts) to |rejectattr('last_changed','ge',ignore_ts)

Note: I edited my replies to you as well as your comment that contained the bug so nobody else copies it by mistake.

[Protoncek]

Thanks! I'll correct it. Although it worked before, too... or maybe i just didn't came across this bug yet...