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68 lines
2.2 KiB
Markdown
68 lines
2.2 KiB
Markdown
---
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layout: page
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title: "Trend Binary Sensor"
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description: "Instructions how to integrate Trend binary sensors into Home Assistant."
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date: 2016-09-05 10:00
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sidebar: true
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comments: false
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sharing: true
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footer: true
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ha_category: Binary Sensor
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logo: home-assistant.png
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ha_release: 0.28
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ha_iot_class: "Local Push"
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---
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The `trend` platform allows you to create sensors which show the trend of numeric `state` or`state_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.
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To enable Trend binary sensors in your installation, add the following to your `configuration.yaml` file:
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```yaml
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# Example configuration.yaml entry
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binary_sensor:
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- platform: trend
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sensors:
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solar_angle:
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entity_id: sun.sun
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```
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Configuration variables:
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- **sensors** array (*Required*): List of your sensors.
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- **friendly_name** (*Optional*): Name to use in the Frontend.
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- **device_class** (*Optional*): The [type/class](/components/binary_sensor/) of the sensor to set the icon in the frontend.
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- **entity_id** (*Required*): The entity that this sensor tracks.
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- **attribute** (*Optional*): The attribute of the entity that this sensor tracks. If no attribute is specified then the sensor will track the state.
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- **invert** (*Optional*): Invert the result (so `true` means descending rather than ascending)
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## {% linkable_title Examples %}
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In this section you find some real life examples of how to use this sensor.
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### {% linkable_title Temperature trend %}
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This example indicates `true` if the temperature is rising:
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```yaml
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binary_sensor:
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- platform: trend
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sensors:
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temperature_up:
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friendly_name: 'Temp increasing'
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entity_id: sensor.skylight_temperature
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device_class: heat
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```
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And this one indicates `true` if the temperature is falling:
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```yaml
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binary_sensor:
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- platform: trend
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sensors:
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temperature_down:
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friendly_name: 'Temp decreasing'
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entity_id: sensor.skylight_temperature
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device_class: cold
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invert: Yes
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```
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