Devices

Devices are a logical grouping for one or more entities. Devices very often represent the physical device itself, which can have one or more sensors. Sensors are displayed as entities associated with the device.

For example, a motion sensor is represented as a device. It can provide motion detection, temperature, and light level as entities. Entities have states, such as "detected" when motion is detected, and "clear" when no motion is detected.

Devices and entities are used throughout Home Assistant. Here are a few examples:

• Dashboards can display the state of an entity. For example, whether a light is on or off.
• Automations can be triggered by a change in the state of an entity. For example, a motion sensor entity detects motion and triggers the light to turn on.
• Predefined light color and brightness settings saved as a scene.

You can find a list of all configured devices in your Home Assistant via Settings -> Devices & Services.