Smart Things + Home Assistant: build your own smart home

Slides for pycon Taiwan 2018
https://tw.pycon.org/2018/zh-hant/events/talk/595662847891996847/

Our world will be composed of more and more connected devices. Smart things will enrich our life started from our home. However, with no standard in place for communication, devices are unable to recognize to each other and work together well.

An open source project, "Home Assistant", brings us into the practical home automation world. Building on Python, the home automation platform was implemented to take control of their houses, their data, and their privacy. In this talk, I will start by introducing a concept of home automation, the general concept of "Home Assistant" and it's components. Then, a sample demo will bring you a real scenario along with introducing configurations.

Transcript

1. Smart Things + Home Assistant:
   build your own smart home
   Shuhsi Lin
   PyContw 2018
   

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2. About me
   Data engineer
   in a manufacturing company
   Working with
   • data and people
   Focus on
   • Streaming process
   • IoT applications
   • Engineer culture
   Shuhsi Lin
   Lurking in PyHug, Taipei.py and various Meetup
   sucitw gmail.com
   

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3. ● Smart home/home automation
   ○ What makes home automation hard
   ● Introduction of home-assistant
   ○ Basic concept of home-assistant
   ○ Architecture of home-assistant
   ● How to build your home automation system
   ○ Environment setup
   ○ Configuration
   ○ Possible scenario
   ● Summary
   What I will share today
   3
   

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4. ● Hacking hardware ( The next speaker may take care !?)
   ● Basic configurations and use on Raspberry Pi
   ● Compare ecosystems for Amazon Alexa/ Google home/ Apple
   HomePod/ Mi home …..
   ● Much source code
   What I will not focus ( aka I don’t know)
   4
   

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5. Smart Home
   

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6. Smart Things
   6
   home control home automation smart home
   location and time-based events
   communicate with
   each other
   at home
   

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7. 7
   Internet of Things
   Home Control
   Information
   (ex, light is on)
   Commands
   (ex, turn light on)
   Home Automation: Start from a hub
   User
   Information
   Commands
   State
   ● Light = on
   ○ Brightness: 120
   ○ Color: Yellow
   ● Sensor value
   ○ Temperature: 32 oC
   ● Switch
   ○ Power: turn_on
   Event
   ● State of switch has changed
   ○ Off -> on
   ● Motion detected
   ● Remote control TV
   

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8. IFTTT
   IFTTT IFTTT IFTTT IFTTT IFTTT IFTTT IFTTT …
   Recipe
   if this then that
   Trigge
   r
   Action
   

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9. Home Automation Landscape
   9
   Internet of Things
   Home Control
   User
   Information
   (ex, light is on)
   Commands
   (ex, turn light on)
   Information
   Commands
   Information
   Commands
   Information
   Commands
   Home Automation Smart Home
   Rules
   (Configuration)
   Home Control, Automation & the Smart Home
   

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10. •More IoT devices with different protocols
    •Many own apps
    •More data
    •More scenarios
    •Privacy and trust
    •Easy to use
    Challenges
    10
    https://www.home-assistant.io/blog/2014/12/26/home-control-home-automation-and-the-smart-home/
    

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11. Home Assistant
    ● Open source, Python 3
    ● Active Community
    ○ 2 weeks release cycle
    ○ Chatrooms, forums, videos
    ● Supported many and many devices
    ● Configuration-based
    ○ Automation with no code change
    ● Cross platforms
    ● Local or remote and cloud is optional
    

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12. Developer documentation
    https://developers.home-assistant.io/en/
    

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13. ● Platforms
    ○ Types of devices (ex, lights, sensors)
    ● Components (> 1000)
    ○ Interact with an Internet-of-Things domain
    ■ MQTT, Zwave, Zigbee
    ■ Lights (Hue, Tradfri)
    ■ Sensors
    ○ Respond to events that happen within
    Home Assistant
    ■ Small pieces of home automation logic or
    involve services that do common tasks within
    your house.
    ■ ex, device_sun_light_trigger component
    Wording in HA
    Event Bus:
    facilitates the firing and listening of events
    -- the beating heart of Home Assistant.
    State Machine:
    keeps track of the states of things and fires
    a state_changed event when a state has
    been changed.
    Service Registry:
    listens on the event bus for call_service
    events and allows other code to register
    services.
    Timer:
    sends a time_changed event every 1
    second on the event bus
    

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14. Home Automation Landscape
    14
    Internet of Things
    Home Control
    User
    Information
    (ex, light is on)
    Commands
    (ex, turn light on)
    Information
    Commands
    Information
    Commands
    Information
    Commands
    Home Automation Smart Home
    Rules
    (Configuration)
    Home Control, Automation & the Smart Home
    

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15. Architecture
    1
    5
    Components
    Platform
    Components
    

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16. Components Architecture
    16
    State Machine
    Components
    service_called
    events
    call_service
    events
    set state
    Event Bus
    Service
    Registry
    Timer
    listen for events/
    fire event
    state_changed
    events
    call event listeners
    time_changed events
    publish service
    call service modified from
    (component_interaction)
    https://developers.home-assistant.io/docs/en/architecture_index.htm
    ...
    

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17. https://www.home-assistant.io/components/
    

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18. https://www.home-assistant.io/com
    ponents/xiaomi_aqara/
    

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19. https://developers.home-assistant.io/docs/en/entity_index.html
    Entity
    Switch entity that keeps track of
    their state in memory
    switch components
    

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20. Automation
    https://www.home-assistant.io/getting-started/automation-2/
    https://www.home-assistant.io/getting-started/automation/
    Turn on the lights when the sun sets
    Check sensor value and (>10) show notification
    

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21. https://www.home-assistant.io/demo/
    

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22. Getting-Started
    

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23. Getting-Started
    Installation
    (Raspberry Pi 3 ,
    Linux or Mac)
    Configuration
    (Connect devices)
    Automation
    (Use it)
    

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24. Installation
    On Raspberry Pi 3
    1. Raspbian
    2. Hassbian
    3. Mossbian (Chinese)
    4. Hass.io use this
    ● HA UI
    ● Ready to use (integrated 3rd part applications)
    ● Easy to install and update (ResinOS and Docker)
    ● Easy to extend by Hass.io add-ons (Goolge Assistant...)
    Home Assistant 0.70.0
    

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25. HOME ASSISTANT and HASS.IO
    https://www.home-assistant.io/blog/2018/04/22/hassio-2018/
    https://developers.home-assistant.io/docs/en/architecture_hassio.html
    ResinOS
    

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26. http://hassio.local:8123
    Home Assistant UI
    

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27. Configuration Hass.io: /config
    (~/.homeassistant/configuration.yaml)
    https://www.home-assistant.io/getting-started/configuration/
    

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28. ADD-ON
    

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30. ssh key
    

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31. Automation by built-in components
    

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32. Hey, Google
    

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33. Home Assistant Cloud
    • Google Assistant (Google Home)
    • Amazon Alexa (Amazon Echo)
    https://www.home-assistant.io/cloud
    /
    

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34. Possible Scenario
    34
    Mi Home (China version)
    (gateway)
    text-based Google Assistant working on Hass.io
    Home Assistant Cloud
    $5 USD/month ?
    yicamera
    (hacked)
    

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35. ● Smart Home
    ○ No standard/universal communication way between smart things
    (so far)
    ● Home assistant
    ○ as a Developer
    ○ as a User
    ● Hassio
    ● Home assistant cloud
    Take Home Messages
    

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36. Overview and tutorials
    ● https://developers.home-assistant.io/ (Developer documentation)
    ● https://www.home-assistant.io/cookbook/ (Cookbook)
    ● https://www.home-assistant.io/getting-started/
    ● https://www.hachina.io/ (Chinese!)
    ● https://home-assistant.cc (Another Chinese!)
    ● https://zhuanlan.zhihu.com/c_138110024 知乎：智能家居从零开始（
    Home Assistant）
    ● Xiaomi Smart Home Ecosystem list
    VIDEOS, TALKS, WORKSHOPS AND ALIKE
    ● Paulus Schoutsen - Awaken your home: Python and the Internet of Things - PyCon 2016
    ● Automating your Home with Home Assistant: Python’s Answer to the Internet of Things
    Hassio
    ● https://www.home-assistant.io/hassio/
    ● https://www.home-assistant.io/blog/2017/07/25/introducing-hassio/
    Google Home
    ● https://www.home-assistant.io/components/google_assistant/ (components/)
    ● https://www.home-assistant.io/cloud/google_assistant/ (via HA cloud)
    ● https://www.youtube.com/watch?v=NfyavpAg4as with google assistant
    Data Science with HA
    ● https://github.com/robmarkcole/HASS-data-science
    Smart Home
    ● 到底什麼是智慧音箱？為什麼亞馬遜、谷歌、蘋果都視其為後手機時代的決勝點？
    智慧家庭實驗室 林祐祺 20180409
    References
    

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