home-assistant.io/source/_components/binary_sensor.trend.markdown

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layout	title	description	date	sidebar	comments	sharing	footer	ha_category	logo	ha_release	ha_iot_class
page	Trend Binary Sensor	Instructions how to integrate Trend binary sensors into Home Assistant.	2016-09-05 10:00	true	false	true	true	Binary Sensor	home-assistant.png	0.28	Local Push

The trend platform allows you to create sensors which show the trend of numeric state orstate_attributes from other entities. This sensor requires two updates of the underlying sensor to establish a trend. Thus it can take some time to show an accurate state. It can be useful as part of automations, where you want to base an action on a trend.

To enable Trend binary sensors in your installation, add the following to your configuration.yaml file:

# Example configuration.yaml entry
binary_sensor:
  - platform: trend
    sensors:
      solar_angle:
        entity_id: sun.sun

Configuration variables:

• sensors array (Required): List of your sensors.
  • friendly_name (Optional): Name to use in the Frontend.
  • device_class (Optional): The type/class of the sensor to set the icon in the frontend.
  • entity_id (Required): The entity that this sensor tracks.
  • attribute (Optional): The attribute of the entity that this sensor tracks. If no attribute is specified then the sensor will track the state.
  • invert (Optional): Invert the result (so true means descending rather than ascending)

{% linkable_title Examples %}

In this section you find some real life examples of how to use this sensor.

{% linkable_title Temperature trend %}

This example indicates true if the temperature is rising:

binary_sensor:
  - platform: trend
    sensors:
      temperature_up:
        friendly_name: 'Temp increasing'
        entity_id: sensor.skylight_temperature
        device_class: heat

And this one indicates true if the temperature is falling:

binary_sensor:
  - platform: trend
    sensors:
      temperature_down:
        friendly_name: 'Temp decreasing'
        entity_id: sensor.skylight_temperature
        device_class: cold
        invert: Yes