Help requested - sensors not supported via Google Home - Nabu Casa

Hi all, I couldn’t find anything in the community on this so creating a new topic, any pointers greatly appreciated.

I currently have Google Home voice assistant in my Home Assistant setup, via Nabu Casa, and mostly it works. However, there are a number of sensors that I’d like to have voice control over, but they are marked as “not supported by this voice assistant”, and I don’t understand how to troubleshoot this.

For example, I have a Kitchen Temperature sensor which is supported in Google, e.g. I can say “Hey Google what is the kitchen temperature?”.

However, I would like to expose my blood glucose measurement so that I or my family can say “Hey Google what is Julian’s blood sugar?”. This is provided by the LibreLinkUp integration GitHub - jrsmile/librelinkup: Home Assistant custom Integration for LibreLinkUp. However, the sensor says it is not supported. I wondered whether it was because Google could not interpret the units (mmol/L), so have experimented with template sensors, including one that used degrees centigrade as a unit, and with input_numbers, but none of these are supported.

So, I guess what I’m asking for is, does anyone know what the criteria are for whether a sensor is supported by the Google Assistant integration, suggestions on what I’m doing wrong, or whether there are logs or config files that I can interrogate to try to troubleshoot?

I can provide YAML for the various sensors and/or log entries if of use. Thanks in advance.

Version info: (though I’ve had this issue for around a year across various versions)

  • Core 2025.2.1
  • Supervisor 2025.02.0
  • Operating System 14.1
  • Frontend 20250205.0
    Hardware: Rpi4 4Gb