You can find the entire repo here.

config/device_tracker/README.md

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+# [![Build Status](https://travis-ci.org/CCOSTAN/Home-AssistantConfig.svg?branch=master)](https://travis-ci.org/CCOSTAN/Home-AssistantConfig) Home-Assistant Config by [@ccostan](http://www.twitter.com/ccostan)
+[Home Assistant](https://home-assistant.io/) configuration files (YAMLs)
+
+Be sure to :star: my repo so you can keep up to date on the daily progress!
+
+For presence detection, I basically just use NMAP.  I've used it from the beginning and it's been rock solid ever since.  No issues at all and if it ain't broken, why fix it?
+
+#Still have questions on my Config?
+Follow me on twitter : [@CCostan](https://twitter.com/ccostan)
+
+You can also vist my [Blog](http://www.vmwareinfo.com/search/label/iot) for all of my [Home Automation Posts](http://www.vmwareinfo.com/search/label/iot).
+
+<a target='_blank' rel='nofollow' href='https://app.codesponsor.io/link/3MkgeKFUVKPNW45Vtwu9Abd4/CCOSTAN/Home-AssistantConfig'>
+  <img alt='Sponsor' width='888' height='68' src='https://app.codesponsor.io/embed/3MkgeKFUVKPNW45Vtwu9Abd4/CCOSTAN/Home-AssistantConfig.svg' />
+</a>

config/device_tracker/nmap.yaml

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+- platform: nmap_tracker
+  hosts: 192.168.10.1/24
+  track_new_devices: no
+  exclude:
+    - 192.168.10.10
+#  scan_options: " --privileged -sP "
+# consider_home: 1800 - Added to known_devices.yaml instead on a device by device basis.

config/device_tracker/ping.yaml.disabled

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+- platform: ping
+  hosts:
+    chromecast_2: 192.168.1.231
+    camera_driveway: 192.168.1.15
+    access_point: 192.168.1.59

config/device_tracker/unifi.yaml.disabled

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+- platform: unifi
+  username: !secret unifi_username
+  password: !secret unifi_password
+  host: !secret unifi_host
+  verify_ssl: false
+  track_new_devices: no