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Add documentation about occupancy groups to Lutron caseta (#12466)

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* Add documentation about occupancy groups to Lutron caseta

* Update some documentation to be more modern
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@ -75,7 +75,7 @@ After setup, scenes will appear in Home Assistant using the area, keypad and but
## Occupancy Sensors
Any configured Powr Savr occuancy sensors will be added as occupancy binary sensors. Lutron reports occupancy for an area, rather than reporting individual sensors. Sensitivity and timeouts are controlled on the sensors themselves, not in software.
Any configured Powr Savr occupancy sensors will be added as occupancy binary sensors. Lutron reports occupancy for an area, rather than reporting individual sensors. Sensitivity and timeouts are controlled on the sensors themselves, not in software.
## Example Automations

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source/_integrations/lutron_caseta.markdown
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@ -9,22 +9,24 @@ ha_category:
- Scene
- Switch
- Fan
- Binary Sensor
ha_release: 0.41
ha_iot_class: Local Polling
ha_domain: lutron_caseta
---
[Lutron](http://www.lutron.com/) is an American lighting control company. They have several lines of home automation devices that manage light switches, dimmers, occupancy sensors, HVAC controls, etc. The `lutron_caseta` integration in Home Assistant is responsible for communicating with the Lutron Caseta Smart Bridge for the [Caseta](https://www.casetawireless.com/) product line of dimmers, switches and shades.
[Lutron](http://www.lutron.com/) is an American lighting control company. They have several lines of home automation devices that manage light switches, dimmers, occupancy sensors, HVAC controls, etc. The `lutron_caseta` integration in Home Assistant is responsible for communicating with the Lutron Caseta Smart Bridge for the [Caseta](https://www.casetawireless.com/) product line of dimmers, switches, shades, and sensors. It will also communicate with the Lutron Radio RA2 Main Repeater for the [RA2 Select](http://www.lutron.com/en-US/Products/Pages/WholeHomeSystems/RA2Select/Overview.aspx) product line of dimmers, switches, shades, and sensors.
This integration only supports the [Caseta](https://www.casetawireless.com/) line of products. Both Smart Bridge (L-BDG2-WH) and Smart Bridge PRO (L-BDGPRO2-WH) models are supported. For the RadioRA 2 product line, see the [Lutron component](/integrations/lutron/).
This integration only supports the [Caseta](https://www.casetawireless.com/) line of products. The Smart Bridge (L-BDG2-WH), Smart Bridge PRO (L-BDGPRO2-WH), and RA2 Select (RR-SEL-REP2-BL) models are supported. For the RadioRA 2 and HomeWorks QS product lines, see the [Lutron component](/integrations/lutron/).
The currently supported Caseta devices are:
The currently supported Caseta and RA2 Select devices are:
- Wall and plug-in dimmers as [lights](#light)
- Wall switches as [switches](#switch)
- Scenes as [scenes](#scene)
- Lutron shades as [covers](#cover)
- Lutron smart [fan](#fan) speed control
- Lutron Occupancy/Vacancy [sensors](#sensor)
When configured, the `lutron_caseta` integration will automatically discover the currently supported devices as setup in the Lutron Smart Bridge. The name assigned in the Lutron mobile app will be used to form the `entity_id` used in Home Assistant. e.g., a dimmer called 'Lamp' in a room called 'Bedroom' becomes `light.bedroom_lamp` in Home Assistant.
@ -115,3 +117,17 @@ After setup, fans will appear in Home Assistant using an `entity_id` based on th
For more information on working with fans in Home Assistant, see the [Fans component](/components/fan/).
Available services: `fan.turn_on`, `fan.turn_off`, and `fan.set_speed`.
## Sensor
Occupancy sensors can be added to a Lutron Caseta system to trigger events when an area becomes vacant and, optionally, occupied. However, Lutron systems report occupancy and vacancy statuses only in *occupancy groups* -- that is, groups of one or more sensors.
Occupancy groups will appear in Home Assistant using an `entity_id` based on the area name in which the first sensor of the group is located. For example, one or more sensors in the Master Bathroom will appear in Home Assistant as `binary_sensor.master_bathroom_occupancy`.
An occupancy group is considered occupied if any of the sensors in the group are currently in an "occupied" state. Specifically, this means that motion has been detected more recently than that sensor's particular timeout setting. Only after all sensors in an occupancy group report being vacant does the occupancy group itself report being vacant.
Lutron Caseta occupancy sensors support 4 different timeouts and 3 different sensitivity levels, but those are only controllable from the devices themselves and cannot be set from either Home Assistant or even the Caseta mobile app.
Because Lutron Caseta devices automatically report state to Home Assistant (rather than relying on polling), occupancy status updates occur almost instantaneously.
For more information on working with binary sensors in Home Assistant, see the [Binary Sensors Component](/components/binary_sensor/)