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source/_topics/platform_options.markdown

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+---
+layout: page
+title: "Entity component platform options"
+description: "Shows how to customize polling interval for any component via configuration.yaml."
+date: 2016-02-12 23:17 -0800
+sidebar: true
+comments: false
+sharing: true
+footer: true
+---
+
+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`.
+
+```yaml
+# 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.
+
+```yaml
+# Example configuration.yaml entry to poll Hue lights every 10 seconds.
+light:
+  platform: hue
+  scan_interval: 10
+```