home-assistant.io/source/_docs/configuration/platform_options.markdown
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page Entity component platform options Shows how to customize polling interval for any component via configuration.yaml. 2016-02-12 23:17 -0800 true false true true /topics/platform_options/

Any component that is based on the entity component allows various extra options to be set per platform.

{% linkable_title Entity namespace %}

By setting an entity namespace, all entities will be prefixed with that namespace. That way light.bathroom can become light.holiday_house_bathroom.

# Example configuration.yaml entry
light:
  platform: hue
  entity_namespace: holiday_house

{% linkable_title Scan Interval %}

Platforms that require polling will be polled in an interval specified by the main component. For example a light will check every 30 seconds for a changed state. It is possible to overwrite this scan interval for any platform that is being polled by specifying a scan_interval config key. In the example below we setup the Philips Hue lights but tell Home Assistant to poll the devices every 10 seconds instead of the default 30 seconds.

# Example configuration.yaml entry to poll Hue lights every 10 seconds.
light:
  platform: hue
  scan_interval: 10