---
layout: component
title: "Device Tracker"
description: "Instructions how to setup device tracking within Home Assistant."
date: 2015-01-20 22:36
sidebar: true
comments: false
sharing: true
footer: true
---

Home Assistant can get information from your wireless router to track which devices are connected. Please check the sidebar for a list of  brands of supported wireless routers.

There are also trackers available which uses different technologies like [MQTT](/components/mqtt/) or [Nmap](/components/device_tracker.nmap_scanner/) to scan the network for devices.

To get started add the following lines to your `configuration.yaml` (example for Netgear):

```yaml
# Example configuration.yaml entry for Netgear device
device_tracker:
  platform: netgear
  host: 192.168.1.1
  username: admin
  password: YOUR_PASSWORD

  # Optional configuration

  # If new discovered devices are tracked by default (default: yes)
  track_new_devices: yes
  # Seconds between each scan for new devices (default: 12)
  interval_seconds: 12
  # Seconds to wait till marking someone as not home after not being seen
  # (default: 180)
  consider_home: 180
```

Once tracking, a file will be created in your config dir called `known_devices.yaml`. Edit this file to adjust which devices have to be tracked. Here you can also setup a url for each device to be used as the entity picture and set whether the device will be show in the UI when in away state.

Multiple device trackers can be used in parallel, such as [Owntracks](/components/device_tracker.owntracks/) and [Nmap](/components/device_tracker.nmap_scanner/). The state of the device will be determined by the source that reported last.