OpenHAB - SmartHome

With the release of OPENHAB 5, the world of open-source home automation takes an important step forward thanks to native support for Matter, the standard that aims to unify smart home devices. One of the most interesting new features is Matter multi-association, which allows you to connect the same device to multiple bridges or controllers at the same time.

What does Matter multi-association mean?

With Matter you are no longer tied to a single ecosystem. A smart bulb, smart plug, or compatible sensor can be registered in OpenHAB 5 as well as in other systems such as Google Home, Alexa, or Apple HomeKit. This makes your smart home more flexible, open, and ready to integrate with multiple platforms without limitations.

How it works in OpenHAB 5

In my test, I used the Matter Bridge in OpenHAB 5 to pair a Matter-compatible device and then connect it to multiple bridges. The main steps are:

1. Configure the Matter Bridge in OpenHAB 5
2. Start pairing a Matter device
3. Repeat the pairing on a second controller
4. Verify that the device responds correctly from both platforms

The result? The same device works in parallel across multiple systems: you can manage it from OpenHAB with advanced rules and, at the same time, control it from Google Home or Alexa. ✅

Why it’s useful

Matter multi-association brings three major benefits:

• Flexibility: multiple ecosystems, one device
• Redundancy: if one system has issues, the other keeps working
• Better integration: take advantage of each platform’s strengths

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