FAQ - Understanding Group Functionality For The Trigger Sensor
To find out more about Groups from the official Home Assistant website please Click Here
How Groups Operate:
In a group of motion or binary sensors, each sensor possesses both an ON and OFF state. While Home Assistant (HA) may represent these states differently (e.g., clear/detected), fundamentally, they are binary. Grouping these sensors effectively merges them into a single entity. If any sensor within the group is ON, the group itself is considered ON. Despite potential overlaps, as long as at least one sensor remains ON, the group maintains an ON status. Conversely, if all sensors are OFF, the group also switches to an OFF state.
Purpose of Utilizing Groups:
When automations are triggered by sensor activity within a collection of sensors, the focus typically remains on the initial sensor that activated the automation. Subsequent activations from other sensors within the same collection might be overlooked, as the automation remains fixated on the primary trigger. Consequently, when the primary sensor deactivates, the automation is completed / ends, even if other sensors within the collection are still active. To re-engage these additional sensors, they must deactivate and reactivate once all sensors return to an inactive state.
Grouping addresses this issue by consolidating sensors. When the initial sensor triggers an automation, the group remains ON. If another sensor within the group activates before the initial sensor deactivates, the group status remains unaffected. Even when the initial sensor deactivates, as long as other sensors remain active, the group remains ON until all sensors return to an OFF state.
Testing Group Functionality: To ensure the effectiveness of your group, integrate it into a dashboard alongside with the individual sensors used in the group. By triggering individual sensors and observing the groupâs response, any discrepancies or patterns hindering functionality can be identified. This allows for targeted troubleshooting and optimization of the group.
How to create a group of binary sensors to be used in the trigger sensor input Click Here
Hope this gives you a better understand of groups and why we use them for the trigger sensor.
Enjoy
Blacky
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