How to list all sensors with attribute = ‘battery_level’

Configuration
8

Next level :see_no_evil: below I get the sensors with the battery_level state.
But how can I filter to get only the one that are below 20%?

{% for state in states.sensor | selectattr('attributes.battery_level','defined') %}
{{ state.name }} = {{ state_attr(state.entity_id, 'battery_level') }}%
{% endfor %}

I have try it with < 20 add the end of selectattr. And | reject(<, '20')
But that does not work.

1 Like
9 
{% for state in states.sensor | selectattr('attributes.battery_level', 'defined') | selectattr('attributes.battery_level', 'lt', 20) %}
{{ state.name }} - {{ state.state }}
{% endfor %}
10

Tnx alot again. Works perfect. I was close But had the ‘ ‘ wrong.
But what means ‘lt’? Lower than?

11

Yes.
eq ==
ne !=
lt <
le <=
gt >
ge >=
1 Like
12

Thank you.

13

how to just check (true/false)* in a nice way if there is a sensor with attribute battery_level with value lt 20?
* to use in binary_sensor

14

In the template, use states.binary_sensor instead of states.sensor.

15

How can I use this script? Can I use it e.g. in an entity on the dashboard?

16

I have used it in a markdown card. You can also used something like this as a template for a new sensor.

17

I used it in a markdown card. I entered:

{% for state in states.sensor | selectattr('attributes.battery_level', 'defined') | selectattr('attributes.battery_level', 'gt', 20) %}
{{ state.name }} - {{ state.state }}
{% endfor %}

All of my battery sensors have almost 100% battery, but none appeared in the card.

Do I miss something?

18

To make or test the results of the code is to go in HA to: Developer Tools, Template.
I test your code and its OK. So I think that your sensors are different.
Have your sensors a attributes “battery_level” ?

19

Apparently, my Aqara temperature/humidity sensors don’t follow that rule… Have to find what’s going on…

20

can you take a picture of the sensor under Developer Tool, States

21

Screenshot_20230114-122040
Screenshot_20230114-1220401080×2260 370 KB

Although they appear in Developer Tools/States, the script don’t work for them…

22

Screenshot_20230114-122358
Screenshot_20230114-1223581080×2234 306 KB

All of the temperature / humidity sensors

23

My battery state is not a sensor, but a attribute of a sensor. That’s why I didn’t work for you.
Maybe this is a solution: 🔋 Lovelace: Battery state card

1 Like
24

Thank you. I’ll try to integrate it.

25

hi, how to fix this?

{{ states.sensor
  | selectattr('attributes.device_class', 'defined')
  | selectattr('attributes.device_class', 'eq', 'battery')
  | selectattr('state', 'lt', 25) # <- this will not work: TypeError: '<' not supported between instances of 'str' and 'int'
  | map(attribute='attributes.friendly_name' )
  | list }}
26

I think that some states are a ‘int’ and some ‘str’

Maybe you can use the auto-entities card.

27

Hello,

even as this seems to be solved, you can use auto-entities card as @LocoLoco proposed.

On the card, you can use code like this:

type: custom:auto-entities
card:
  type: entities
filter:
  include:
    - entity_id: '*battery_level*'
  exclude: []
sort:
  method: entity_id

This an easier way for new and unexperienced users and every device with this battery entities will be added automatically.