homeassistant-device-tracker

openwrt wifi device presence to MQTT publish for homeassistant device tracking

• based on https://forum.fhem.de/index.php?topic=113524.0
• uses logread or hostapd_cli for information gathering
• uses mqtt, makes autodiscovery of trackers available to homeassistant
• doesn't poll and doesn't need access of homeassistant to the router (security)
• pushes status updates to mqtt, which is instant in case of connect (eg. arriving at home)

currently only logread is working, because hostapd_cli hook misses the connect after a disconnect/connect cycle on dhcp renew

install

• opkg install coreutils-nohup hostapd-utils mosquitto-client-ssl
• copy to /etc:
  • hostapd_hook_mqtt_credentials.conf
  • hostapd_hook_mqtt_cafile.crt
• copy to /usr/bin:
  • hostapd_hook_mqtt.sh
  • logread_hook_mqtt.sh
• append /etc/rc.local contents to current /etc/rc.local
• optional: add custom files to backup and make router backup

/etc/hostapd_hook_mqtt_credentials.conf
/etc/hostapd_hook_mqtt_cafile.crt
/usr/bin/hostapd_hook_mqtt.sh
/usr/bin/logread_hook_mqtt.sh

• reboot router

usage

• once setup, homeassistant will autodiscover the wifi clients as device_tracker
• known static Wifi Clients will be available as device_tracker.<dhcp_name>
• other Wifi Clients will be available as device_tracker.guest-<mac_address>