fast.com docs (#764)

source/_components/sensor.fastdotcom.markdown

@@ -0,0 +1,46 @@
+---
+layout: page
+title: "Fast.com"
+description: "How to integrate Fast.com within Home Assistant."
+date: 2016-08-10 17:30
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: fastdotcom.png
+ha_category: Sensor
+featured: false
+ha_release: 0.26
+---
+
+The `fastdotcom` sensor component uses the [Fast.com](https://fast.com/) web service to measure network bandwidth performance.
+
+By default, it will run every hour.  The user can change the update frequency in the config by defining the minute, hour, and day for a speedtest to run.
+
+To add a Fast.com sensor to your installation, add the following to your `configuration.yaml` file:
+
+Once per hour, on the hour (default):
+
+```yaml
+sensor:
+  platform: fastdotcom 
+```
+
+More examples:
+
+Every half hour of every day:
+
+```yaml
+sensor:
+  platform: fastdotcom
+  minute:
+    - 0
+    - 30
+```
+Configuration variables:
+
+- **minute** (*Optional*): Specify the minute(s) of the hour to schedule the speedtest. Use a list for multiple entries. Default is 0.
+- **hour** (*Optional*): Specify the hour(s) of the day to schedule the speedtest. Use a list for multiple entries. Default is None.
+- **day** (*Optional*): Specify the day(s) of the month to schedule the speedtest. Use a list for multiple entries. Default is None.
+
+There is also a service named `sensor.update_fastdotcom` that you can use to run a fast.com speedtest on demand.