Enable sensor if consumption is low

Configuration
1

Hello, I would like to create sensor if power consumption is low for more than 3 hours. Example: If consumption is under 10 watts for more than 3 hours then activate sensor. Any ideas? Regards

2

I use a template binary_sensor for those kind of “alert” sensors:

Ex:

- binary_sensor:

    - name: "CLOUD error"
      device_class: problem
      state: >-
        {% if is_state("sensor.cloud_dmesg", "") %}off{% else %}on{% endif %}
3

To add: look at delay_on here.

4

Thanks guys, I will try to realise with your ideas.

5

@koying @parautenbach I need to ask again. I´m not very familiar with if/else etc. I would appreciate an example very much. My approach again: If consumption is under 10 watts for more than 2 hours then activate sensor.

Thank you in advance!

6

There’s literally an example in the docs I posted for you that you can tweak for your use case: Template - Home Assistant (home-assistant.io).

# Determine when the washing machine has a load running.
template:
  - binary_sensor:
      - name: "Washing Machine"
        delay_off:
          minutes: 5
        state: >
          {{ states('sensor.washing_machine_power')|float > 0 }}

My guess:

# Determine when the washing machine has a load running.
template:
  - binary_sensor:
      - name: "Some device not running"
        delay_on:
          hours: 3
        state: >
          {{ states('sensor.some_sensor') | float < 10 }}

You haven’t given us much to work from: You haven’t shown what you’ve tried, no entity names, whether you’re using YAML or the UI, etc. How to help us help you - or How to ask a good question - Configuration - Home Assistant Community (home-assistant.io)

7 
template:
  - binary_sensor:
      - name: "Luftentfeuchter voll"
        delay_on:
          hours: 3
        state: >
          {{ states('sensor.luftentfeuchter_current_consumption') | W < 10 }}

My try above and I get following error: Invalid config for [template]: invalid template (TemplateAssertionError: No filter named ‘W’.) for dictionary value @ data[‘binary_sensor’][0][‘state’]. Got “{{ states(‘sensor.luftentfeuchter_current_consumption’) | W < 10 }}\n”.

Can you support? What could be the filter?

8

Are you trying at random? What is “W” supposed to achieve?

Please be so kind as to make some effort to read the existing and quit thorough documentation

9

Thanks again :slightly_smiling_face: I had a misunderstanding with “float”, my tought was the filter is related to the unit of m. I change back to “float” and the sensor is available. Crossing fingers that is works…

image

10

Works as designed :slight_smile: I have tested with minutes. Will order one more power plug for my washing machine :star_struck:

Thanks again for very helpful support!