I maintain this and other Home Assistant add-ons in my free time: keeping up with upstream changes, HA changes, and testing on real hardware takes a lot of time (and some money). I use around 5-10 of my >110 addons so regularly I install test machines (and purchase some test services such as vpn) that I don't use myself to troubleshoot and improve the addons

If this add-on saves you time or makes your setup easier, I would be very grateful for your support!

Addon informations

Thanks to everyone having starred my repo! To star it click on the image below, then it will be on top right. Thanks!

About

Network presence and intruder detector. Scans for devices connected to your network and alerts you if new and unknown devices are found. This addon is based on the docker image from jokob-sk.

Installation

The installation of this add-on is pretty straightforward and not different in comparison to installing any other Hass.io add-on.

Add my Hass.io add-ons repository to your Hass.io instance.
Install this add-on.
Click the Save button to store your configuration.
Start the add-on.
Check the logs of the add-on to see if everything went well.
Carefully configure the add-on to your preferences, see the official documentation for for that.

Configuration

If unavailable, the app generates a default app.conf and app.db file on the first run.
The preferred way is to manage the configuration via the Settings section in the UI, if UI is inaccessible you can modify app.conf in the /config/config/ folder directly.
You have to specify which network(s) should be scanned. This is done by entering subnets that are accessible from the host. If you use the default ARPSCAN plugin, you have to specify at least one valid subnet and interface in the SCAN_SUBNETS setting. See the documentation on How to set up multiple SUBNETS, VLANs and what are limitations and for troubleshooting and more advanced scenarios.
Read how to get devices into your Home Assistant instance via the MQTT plugin
Back everything up by following the Backups documentation.

Webui can be found at http://homeassistant:20211 or using HA ingress

PGID: user
GPID: user

Custom Scripts and Environment Variables

This addon supports custom scripts and environment variables through the addon_config mapping:

Custom scripts: See Running Custom Scripts in Addons
env_vars option: Use the add-on env_vars option to pass extra environment variables (uppercase or lowercase names). See https://github.com/alexbelgium/hassio-addons/wiki/Add-Environment-variables-to-your-Addon-2 for details.