Add fritz page

source/_components/device_tracker.fritz.markdown

@@ -0,0 +1,43 @@
+---
+layout: component
+title: "FRITZ!Box"
+description: "Instructions how to integrate AVM FRITZ!Box based routers into Home Assistant."
+date: 2015-12-13 19:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: avm.png
+ha_category: Presence Detection
+---
+
+
+The `fritz` platform offers presence detection by looking at connected devices to a [AVM Fritz!Box](http://avm.de/produkte/fritzbox/) based router.
+
+<p class='note warning'>
+It might be necessary to install additional packages: <code>$ sudo apt-get install libxslt-dev libxml2-dev</code>
+</p>
+
+To use an Fritz!Box router in your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+device_tracker:
+  platform: asuswrt
+  host: YOUR_ROUTER_IP
+  username: YOUR_ADMIN_USERNAME
+  password: YOUR_ADMIN_PASSWORD
+```
+
+Configuration variables:
+
+- **host** (*Optional*): The IP address of your router, eg. 192.168.1.1. It is optional since every fritzbox is also reachable by using the IP address 169.254.1.1.
+- **username** (*Optional*: The username of an user with administrative privileges, usually *admin*.
+- **password** (*Optional*): The password for your given admin account.
+
+<p class='note'>
+It seems that it is not necessary to use it in current generation Fritz!Box routers because the necessary data can be retrieved anonymously.
+</p>
+
+See the [device tracker component page](/components/device_tracker/) for instructions how to configure the people to be tracked.
+