Guide

KNX to Matter in India: connecting KNX to Apple Home, Google Home and Alexa

A KNX installation does not talk to Apple Home, Google Home or Amazon Alexa by itself. A KNX to Matter bridge sits between them, so the home apps and voice assistants can control lights, blinds and climate while the KNX system stays as it is. This guide uses the 1Home Server KNX Pro, which Morion Automation distributes in India, as its example.

What a KNX to Matter bridge does

Devices on a KNX bus speak KNX. Apple Home, Google Home and Alexa speak Matter, an IP-based standard from the Connectivity Standards Alliance that runs over Wi-Fi and Thread, with Bluetooth Low Energy used to commission devices³. A KNX to Matter bridge translates between the two: it reads the KNX group addresses, shows lights, blinds and climate as Matter devices, and lets the home apps and voice assistants control them.

The 1Home Server KNX Pro has a built-in KNX IP interface with four KNX IP tunnels¹. You upload the ETS project file and the server groups the group objects into devices automatically, so the KNX system stays as it is. Morion Automation is the authorised 1Home distributor in India.

Which apps work, and which need a hub

Every app except the 1Home App connects through a hub on your home network. Alexa and SmartThings are in beta. Voice control, such as Siri through Apple Home, Google Assistant through Google Home and Alexa, needs internet¹. In the Alexa app the KNX devices appear grouped by type and room, and you can control a room or one device².

Limits to plan around

• KNX to Matter: up to 250 devices go to Apple Home, Google Home, Alexa and the other Matter apps. A KNX project can have more devices than that, so choose which ones to expose¹.
• Into 1Home: the number of KNX devices brought into 1Home is not limited¹.
• Matter to KNX: up to 100 Matter devices can be given KNX group addresses and programmed in ETS like any other device. A Matter bridge such as Philips Hue counts as one physical device¹.
• Automations: up to 150 automations on the Server KNX Pro.
• Internet: the server runs locally and KNX and Matter control do not need internet. Voice control, the Google Home app, remote access and the ETS auto-detection feature do¹. There are no monthly fees¹.

What to have ready before you start

1. The ETS project file. The server uses it to detect and group devices. A 1Home dashboard in the browser does the setup and needs no ETS licence.
2. A device list. Decide which lights, blinds and climate zones should reach the home apps, to stay within 250.
3. A hub for each app. For Apple Home, Google Home or Alexa you need one of the hubs in the table.
4. Room and device names. The names in your KNX project become the names people speak to the assistant.

MDT and other KNX brands

The bridge works on the KNX system as it stands, so lights, blinds and climate controlled by MDT actuators and by other KNX brands appear in the home apps in the same way once they are grouped as devices. If you are still weighing wired KNX against wireless systems, see KNX vs Wi-Fi vs Zigbee, or start with our KNX guide for India.

Get a 1Home quote

Tell Morion which KNX system you have and which apps your client uses, and we will suggest the right 1Home product. Call or WhatsApp +91 90303 44479, write to info@morion.in, or book a consultation. For the full range, see the 1Home page.

1. The 1Home Server KNX Pro, 1home.io/server-for-knx, and KNX to Matter (device limits, local operation, supported apps).
2. 1Home, KNX with Amazon Alexa.
3. Connectivity Standards Alliance, Matter.

Last updated 22 October 2026 by Morion Automation.