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Key Points

Key Takeaways

  • 1

    The Unified Home

  • 2

    Matter: Common language of smart home. Apple, Google, Amazon, all devices compatible with this standard connect. End of nightmare saying 'This bulb is Alexa exclusive'

  • 3

    Home Assistant Green: HA dedicated hardware usable immediately without Raspberry Pi. Controls all devices within local network and does not depend on cloud

  • 4

    SwitchBot Hub 2: Bridge to make infrared remote control (AC and TV) Matter compatible. Old home appliances can also become residents of smart home

  • 5

    Automation: Trigger is not 'Voice' but 'State'. Run ventilation fan if CO2 concentration rises. Fade in lighting if human enters room

Introduction: Escape from App Hell

Open Philips app and turn on lights, open Dyson app and change wind volume, close curtains with SwitchBot app. This is not smart. Just proliferation of remote control apps.

Definition of Home Automation 2.0 is simple. “Managing all devices with single dashboard and linking them mutually”.

1. The Controller: Home Assistant Green

DIY lovers were installing on Raspberry Pi, but now this is correct answer. Just by turning on power, “OS” of your house stands up.

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Home Assistant Green

Troublesome setup unnecessary. Automatically detects Zigbee and Matter devices, generates beautiful dashboard. Since not depending on cloud, house operation is possible even if internet is cut.

Amazon

Local Control

Why is local control important? Because lag occurs like “Press switch -> Send to server -> Instruction from server to bulb” via cloud, but it lights up in instant (several ms) if local.

2. The Bridge: SwitchBot Hub 2

In Japanese households, there are still many appliances compatible only with infrared remote control (AC, Ceiling Light). No need to throw them away and replace.

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SwitchBot Hub 2 (Matter Support)

Thermo-hygrometer built-in. Infrared remote control registered in this hub becomes directly visible from Home Assistant and Apple HomeKit via Matter. Magic that 'Old AC' transforms into 'Matter compatible AC'.

Amazon

3. Automation Recipes

While calling “Alexa”, you are second class. First class automation makes human intervention zero.

  • Sleep Mode : Smartphone placed on charger AND illuminance of bedroom dropped -> Turn off lights in whole house, lock key, AC to silent mode.
  • Work Mode : PC started AND CO2 concentration exceeded 1000ppm -> Circulator ON, open window blinds.

4. Comparison: End of Ecosystem War

項目 Conventional Smart Home Matter + Home Assistant
Compatibility Alexa / HomeKit support All OK if Matter support
Reaction Speed Slow (Via Cloud) Explosive Speed (Local)
Privacy Log on company server Complete with home server
Difficulty Easy (Just install app) Medium (Initial setting needed)

Conclusion: Magic Castle

“House that takes into account master’s intention” appearing in SF movies. That can be realized with investment of tens of thousands of yen and little setting in 2026.

House evolves from just “Box” to “Robot” that protects you and makes you comfortable.

# smart-home # matter # home-assistant # switchbot # automation # 2026