curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
sudo apt-get install -y nodejs
sudo apt-get install libavahi-compat-libdnssd-dev
sudo apt-get install libudev-dev
sudo npm i --global --unsafe-perm room-assistant

mkdir room-assistant
cd room-assistant
mkdir config
cd config
nano local.yaml

put the text between the lines in the file
to save: ctrl-x -> y -> enter
edit mqttUrl to your server ip (keep the :1883 port at the end)
edit your mqtt username and password
add your bluetooth address

-----------------------------------------
global:
  instanceName: Living Room
  integrations:
    - homeAssistant
    - bluetoothClassic
homeAssistant:
  mqttUrl: mqtt://mqtt-server-ip:1883
  mqttOptions:
    username: mqtt-username
    password: mqtt-password
bluetoothClassic:
  minRssi: -20
  addresses:
    - 'Bluetooh Mac Address'
-----------------------------------------


sudo nano /etc/systemd/system/room-assistant.service

put the text between the lines in the file
to save: ctrl-x -> y -> enter

-----------------------------------------
[Unit]
Description=room-assistant service

[Service]
ExecStart=/usr/bin/room-assistant
WorkingDirectory=/home/pi/room-assistant
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target
-----------------------------------------

sudo systemctl enable room-assistant.service
sudo systemctl start room-assistant.service


device tracker automations
add these to your automation file in home assistant

-----------------------------------------
- alias: Bluetooth Home
  trigger:
    - platform: state
      entity_id: sensor.sensorname
      from: not_home
  action:
    - service: device_tracker.see
      data:
        dev_id: sensorname
        location_name: home

- alias: Bluetooth Not Home
  trigger:
    - platform: state
      entity_id: sensor.sensorname
      to: not_home
  action:
    - service: device_tracker.see
      data:
        dev_id: sensorname
        location_name: not_home
----------------------------------------