Template Sensor with Dynamic Battery Icon

Configuration
1

This is driving me nuts and I can’t figure it out. I am trying to get my battery icon to show dynamically but the code is not working. Any ideas?

Here is the code:
- platform: template
sensors:
rear_gate_sensor_battery:
friendly_name: “Rear Gate Battery”
unit_of_measurement: “%”
value_template: >-
{%- if states.binary_sensor.rear_gate_opened.battery_level %}
{{ states.binary_sensor.rear_gate_opened.attributes.battery_level | round }}
{% else %}
{{ states.binary_sensor.rear_gate_opened.attributes.battery_level | round }}
{%- endif %}
icon_template: >-
{%- if is_state(“states.binary_sensor.rear_gate_opened.attributes.battery_level”, “unknown”) %}
mdi:battery-unknown
{% elif states(‘states.binary_sensor.rear_gate_opened.attributes.battery_level’) | float <= 5 %}
mdi:battery-outline
{% elif states(‘states.binary_sensor.rear_gate_opened.attributes.battery_level’) | float >= 95 %}
mdi:battery
{% else %}
mdi:battery-{{(states.binary_sensor.rear_gate_opened.attributes.battery_level | float / 10)|round*10}}
{%- endif %}

Here is the test:

Screenshot 2017-05-15 23.09.49.png2450×1390 354 KB

Here is the result:

Screenshot 2017-05-15 23.08.36.png972×642 27.7 KB

2

I have the same problem, did you perhaps find a solution? TIA.

3

Try removing the single quotes " ’ "

4

Still having fun with this one. I have tried almost everything:

any ideas?

- platform: template
  sensors:
    back_gate_sensor_battery:
      friendly_name: 'Back Gate Battery'
      unit_of_measurement: '%'
      value_template: {{ states.binary_sensor.back_gate_opened.attributes.battery_level | round(0) }}
      icon_template:
      {%- if 'states.binary_sensor.back_gate_opened.attributes.battery_level' == '100' %}
           mdi:battery-charging
      {%- elif 'states.binary_sensor.back_gate_opened.attributes.battery_level' <= '5' %}
           mdi:battery-outline
      {%- elif 'states.binary_sensor.back_gate_opened.attributes.battery_level' >= '95' %}
           mdi:battery
      {% else %}
           mdi:battery-{{('states.binary_sensor.back_gate_opened.attributes.battery_level' | float / 10)|round*10}}
      {%- endif %}

results in:
- platform: template
sensors:
back_gate_sensor_battery:
friendly_name: ‘Back Gate Battery’
unit_of_measurement: ‘%’
value_template: 80
icon_template:
mdi:battery

5

I think you need >- on your icon_template: line. You also have quotes around your numbers, which I think makes them into a string comparison. What I use is below and looks fairly similar to yours except for handling the 5% and 95% use case.

- platform: template
  sensors:
    mailbox_battery:
      value_template: '{{ states.zwave.mailbox.attributes.battery_level }}'
      friendly_name: 'Mailbox Battery'
      entity_id: zwave.mailbox
      unit_of_measurement: '%'
      icon_template: >-
        {% set battery_level = states('sensor.mailbox_battery')|int('unknown') %}
        {% set battery_round = (battery_level|int / 10)|int * 10 %}
        {% if battery_level == 'unknown' %}
          mdi:battery-unknown
        {% else %}
          {% if battery_round >= 100 %}
            mdi:battery
          {% elif battery_round > 0 %}
            mdi:battery-{{ battery_round }}
          {% else %}
            mdi:battery-alert
          {% endif %}
        {% endif %}
6 Likes
6

I like your icon template. But is there anyway of not getting this error at startup?

Could not render icon template Dørsensor Batteri: UndefinedError: 'mappingproxy object' has no attribute 'battery_level'

I use it for my zwave devices, so it is not ready at startup.

7

Wow!! Thanks for this @NotoriousBDG - I now have all my zwave devices showing dynamic icons for their batteries :slight_smile:

Quick question though - I get the following error in my log at startup for all my zwave devices now though:

Could not render template Kitchen sensor, the state is unknown.

Any ideas how to avoid this error?

8

That’s most likely because battery devices sleep most of the time. It should show up once the device wakes up and reports in.

9

Thanks @NotoriousBDG, but it seems this is because the zwave devices aren’t “ready” at startup and only a few seconds later.
I found it worked by replacing the “value_template” you had above with the “value_template” as seen here.
No more error :slight_smile:

1 Like
10

Awesome. I’ll update my templates with that fix too.

1 Like
11

Tried this:

value_template: '{% if states.zwave.vannsensor_oppvaskmaskin %}
  {{ states.zwave.vannsensor_oppvaskmaskin.attributes.battery_level }}
{% else %}
  n/a
{% endif %}'
icon_template: >-
  {% set battery_level = (states.zwave.vannsensor_oppvaskmaskin.attributes.battery_level)|int('unknown') %}
  {% set battery_round = (battery_level|int / 10)|int * 10 %}
  {% if battery_level == 'unknown' %}
    mdi:battery-unknown
  {% else %}
    {% if battery_round >= 100 %}
      mdi:battery
    {% elif battery_round > 0 %}
      mdi:battery-{{ battery_round }}
    {% else %}
      mdi:battery-alert
    {% endif %}
  {% endif %}

Still got this error:
Could not render icon template Vanndetektor Oppvaskmaskin Batteri: UndefinedError: ‘mappingproxy object’ has no attribute ‘battery_level’

Do you not get this error?

12

Your first line below icon_template is currently this:

{% set battery_level = (states.zwave.vannsensor_oppvaskmaskin.attributes.battery_level)|int(‘unknown’) %}

It should rather be this:

{% set battery_level = states(‘name of your sensor here’)|int(‘unknown’) %}

Sorry, not sure what you are calling your sensor as you haven’t included that part of the code. In @NotoriousBDG’s example, it would be sensor.mailbox_battery

Hope that helps?

13

Yes! How could I miss that. Thank you, no more errors! :smile:

14

Awesome!! Enjoy :slight_smile:

15

Have a problem with my smokesensor templates. Get this error:

Could not render template Branndetektor Kjøkken, the state is unknown.

. Do you know if its possible to get this to work?

  branndetektor_kjokken_template:
    friendly_name: 'Branndetektor Kjøkken'
    value_template: >-
     {%- if is_state("sensor.brannvarsler_kjokken_smoke", "2") -%}
      Brann
     {%- elif is_state("sensor.brannvarsler_kjokken_smoke", "3") -%}
      Brann Test
     {%- elif float(states.sensor.timestamp_now.state | int - as_timestamp(states.zwave.brannvarsler_kjokken.last_updated)) | float > (5000) -%}
      Error
     {%- else -%}
      Ok
     {%- endif -%}

It is this line that is causing the problem:

 {%- elif float(states.sensor.timestamp_now.state | int - as_timestamp(states.zwave.brannvarsler_kjokken.last_updated)) | float > (5000) -%}
  Error

But really want that function, but meaby possible to fix?

16

Did you ever get this to work? I’m seeing similar errors, also with a Z-wave device. I’ve got the following in my sensors.yaml:

- platform: template
  sensors:
    battery_entry_sensor:
      value_template: '{% if states.zwave.vision_unknown_type0004_id0000_2 is not none %}
        {{ states.zwave.vision_unknown_type0004_id0000_2.attributes.battery_level }}
        {% else %}
          n/a
        {% endif %}'
      unit_of_measurement: '%'
      friendly_name: 'Door Lock'
      icon_template: >
        {% set battery = ['-outline','-20','-20','-30','-40','-40','-60','-70','-80','-90',''] %}
        {% set charge = (states('battery_entry_sensor') | float / 10) | round %}
        mdi:battery-{{ battery[charge] }}
17

for battery, why don’t you just use device_class: battery instead of the icon_template:

- platform: template
  sensors:
    corridor_motion_sensor_battery:
      friendly_name: 'Corridor battery'
      unit_of_measurement: '%'
      value_template: >
        {{ states.sensor.corridor_motion_sensor.attributes.battery }}
      device_class: battery

#      icon_template: >
#        {% set battery_level = states.sensor.corridor_motion_sensor.attributes.battery|default(0)|int %}
#        {% set battery_round = (battery_level / 10) |int * 10 %}
#        {% if battery_round >= 100 %}
#          mdi:battery
##        {% elif battery_round > 0 %}
#          mdi:battery-{{ battery_round }}
#        {% else %}
#          mdi:battery-alert
#        {% endif %}
6 Likes
18

That was too easy… thank you!

1 Like
19

Thanks for suggestion.

20

Hi, have tried several combinations of the suggestions here, but cant seem to get it working. The sensor always shows the battery-alert icon for all battery levels:

image

Running Home Assistant v0.92.2. Hope someone can find the error please?

configuration.yaml

image