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Learning – Google Home Voice Notification (input: Aux)

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This flow demonstrates how to emit an voice notification to a Google Home smart speaker when the byte value of a KNX device changes.

This flow uses:

  • realknx-in
  • googlehome-notify (googlehome-notify-nj4 before 2018 Q1)

googlehome-notify : Sends a notification (a string) to a selected Google Home smart speaker.


Note: do not set the option “Convert output to boolean:” in the realknx-in  module for an “AUX-1 byte”


  1. From the Menu in Node-Red (hamburger), select Configuration Nodes
  2. Select “GoogleHome-config-node” enter the IP address of the Google Home
  3. Open the “set msg.payload” and modify the text that will be sent to GH.

How it works:

  • when the state of the AUX changes, the Google Home speaker emits a message

Download Codelearning-google-home-input-aux.json

How-to import: Video Tutorial