Trends: what are the best settings? And what does the Netatmo integration use?

Configuration
1

I want to make trend sensors for temperature and humidity in my house. I noticed that Netatmo offers non binary sensors that output up, down or stable. But I cannot find the settings behind this.

I want to recreate those sensors for my Aqara temperature sensors. But I don’t have an idea how to do this. The Trend integrations creates a binary sensor (and therefore there is no stable option).

Any ideas?

2

You could add a template sensor that combines the two binary sensors created by the Trend integration.
Something like this:

binary_sensor:
  - platform: trend
    sensors:
      temp_falling:
        entity_id: sensor.outside_temperature
        sample_duration: 7200
        max_samples: 120
        min_samples: 20
        min_gradient: -0.0008
        device_class: cold

      temp_rising:
        entity_id: sensor.outside_temperature
        sample_duration: 7200
        max_samples: 120
        min_samples: 20
        min_gradient: 0.0008
        device_class: heat

template:
  - sensor:
    - name: Trend Temperature
      unique_id: uid_trend_temperature
      state: >
        {% if is_state('binary_sensor.temp_rising', 'on') %}
          Rising
        {% elif is_state('binary_sensor.temp_falling', 'on') %}
          Falling
        {% else %}
          Stable
        {% endif %}
      icon: >
        {% if is_state('sensor.trend_temperature', 'Rising') %}
          mdi:arrow-top-right-thin-circle-outline
        {% elif is_state('sensor.trend_temperature', 'Falling') %}
          mdi:arrow-bottom-right-thin-circle-outline
        {% else %}
          mdi:arrow-right-thin-circle-outline
        {% endif %}
3

Will this work? You have two times “on” (if and elif). And will a binary sensor be empty for the else case?

4

Yes, this will work. Did you already try it?

What you do is creating an extra sensor that replaces the two binary sensors with a template sensor that can have three states: Rising, Falling or Stable.
The state depends on the states of the two binary sensors.

        {% if is_state('binary_sensor.temp_rising', 'on') %}
          Rising

So if the binary_sensor.temp_rising is on the state will be Rising. Etc.
So this template sensor is not a binary sensor. You could call it a “triple” sensor.

1 Like
5

Oh yeah right. I read it all wrong making a false assumption. I did not try this, as it will make quite a lot of sensors… that is a bit of a downside.

Last question: your trend sensors, are the actual values that would give reliable output?

6

“My” trend sensors are just the ones from the Home Assistant Trend integration doc.
There are a lot of configuration options to play with to adapt them to your specific sensors, but I bed that this can give you a very reliable output.