Home automations with Home Assistant (HA)

I'm running Home Assistant from docker-compose (image homeassistant/home-assistant) on a Raspberry Pi 3 (Model B+) with an attached 5" HDMI touchscreen running a simple kivy Python app.

Other hardware components:

KNX is used at home, but I have already set up scenarios and named everything using the middleware Linknx. (See my KNX page for more info.) Therefore I did a Linknx integration with Home Assistant - entities consists of lamps, dimmers, swiches, light- and temperature sensors
One of the goals with the home automation was to build an alarm. The central part of the alarm is the Keypad running on Arduino Ethernet, controlling the alarm. MQTT is used to send messages between the Keypad and HA
Integrated an old Slim Devices Squeezebox for playing alarm sound and messages, also running the lms-server from the image toertel/logitech-media-server
Kodi is running on a Raspberry Pi 4 using the LibreELEC distro. Integrations lets you for example change the TV channel from the HA app
Zigbee controller from ConBee II using the ZHA (Zigbee Home Automation) in Home Assistant
Sensors: IKEA Trådfri Motion Sensor, Aquara Door and Window Sensor

This is my docker-compose.yml:

version: '3.4'
services:
  homeassistant:
    container_name: homeassistant
    image: homeassistant/home-assistant:latest
    volumes:
      - /home/pi/ha/config:/config
      - /etc/localtime:/etc/localtime:ro
      - /run/udev:/run/udev:ro
      - /home/pi/ha/scripts:/scripts
    restart: unless-stopped
    network_mode: host
    devices:
      - /dev/ttyACM0
    command: sh -c "python3 /scripts/carheating-runner.py& exec python3 -m homeassistant --config /config"
  slimserver:
    container_name: logitech-media-server
    image: toertel/logitech-media-server:latest
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /home/pi/ha/slimserver:/srv/squeezebox
      - /home/pi/ha/slimserver-music:/srv/music
    ports:
      - "9000:9000/tcp"
      - "9090:9090/tcp"
      - "3483:3483/tcp"
      - "3483:3483/udp"
    expose:
      - "9000/tcp"
      - "9090/tcp"
      - "3483/tcp"
      - "3483/udp"
    restart: unless-stopped
  mqtt:
    container_name: mqtt
    image: eclipse-mosquitto:latest
    network_mode: host
    environment:
      - MOSQUITTO_USERNAME=this_is_secret
      - MOSQUITTO_PASSWORD=this_is_secret
      - TZ=Europe/Stockholm
    volumes:
      - /home/pi/ha/mosquitto/config:/mosquitto/config
      - /home/pi/ha/mosquitto/log:/mosquitto/log
      - /home/pi/ha/mosquitto/data:/mosquitto/data
    restart: unless-stopped
    depends_on:
      - homeassistant

Everything is quite standard, except a script that is started in the HA container, carheating-runner.py (using linknx.py). We have two outdoor switches (left and right) for controlling the car pre-heaters. In HA you can enter the time you want the car to be ready and depending on the outside temperature, the car pre-heater starts max(0,60-temperature*3) minutes before that time (temperature in °C). When the time or activation changes, another script carheating-updater.py is called from HA. It is possible to implement the automation for this in HA, but it's messy, so I just made a few Python scripts instead.

Here is my HA configuration.yaml:

# Configure a default setup of Home Assistant (frontend, api, etc)
default_config:

# Text to speech
tts:
  - platform: google_translate

group: !include groups.yaml
automation: !include automations.yaml
script: !include scripts.yaml
scene: !include scenes.yaml

shell_command:
  update_car_heating: python /scripts/carheating-updater.py {{ states("input_datetime.motorvarmare_vanster_tid") }} {{ states("input_boolean.motorvarmare_vanster_aktivera") }} {{ states("input_datetime.motorvarmare_hoger_tid") }} {{ states("input_boolean.motorvarmare_hoger_aktivera") }}

linknx:
    host: "linknx.host.ip.number"
    port: 1028

light:
  - platform: linknx
    entities:
      - { id: light_kitchen, dim: light_kitchen_dim, name: "Belysning kök" }
#     ... and many more    
switch:
  - platform: linknx
    entities:
      - { id: plug_library, name: "Uttag bibliotek" }
#     ... and some more

  - platform: mqtt
    name: "Alarm Hemma"
    state_topic: "keypad_out"
    command_topic: "keypad_in"
    qos: 0
    payload_on: "ALARM_ON"
    payload_off: "ALARM_OFF"
    retain: true

  - platform: mqtt
    name: "Armera Hemma"
    state_topic: "keypad_out"
    command_topic: "keypad_in"
    qos: 0
    payload_on: "ALARM_MODE_ON"
    payload_off: "ALARM_MODE_OFF"
    retain: true

sensor:
  - platform: linknx
    scan_interval: 60
    entities:
      - { id: temp, name: "Utetemperatur", type: "°C" }
#     ... and some more

binary_sensor:
  - platform: linknx
    scan_interval: 60
    entities:
      - { id: is_workday, name: "Arbetsdag", type: "workday" }

media_player:
  - platform: squeezebox
    host: ip.for.ha.server
    port: 9000

mqtt:
  broker: ip.for.ha.server
  port: 1883