topic Re: Script Editor - starter based on comparison between two devices' values in Smart Home Developer Forum

Script Editor - starter based on comparison between two devices' values

fabiomolinar — Wed, 16 Jul 2025 08:29:57 GMT

Hi everyone,

I am trying to start an automation based on the values of two temperature sensors. Let's call them Device A and Device B. I want to get a notification when temperature at Device A is greater than or equal to the temperature at Device B.

Currently, I can only assign fixed values to the greaterThanOrEqualTo field. It would be great if instead I could set this field to the value from another sensor.

See pseudo-code below of what I would like to see working:

metadata:
  name: Temperature Alert - Send Notification
  description: If Temp A > Temp B, send a notification and turn the lock on.
automations:
  - starters:
      - type: device.state.TemperatureControl
        device: Device A
        state: temperatureAmbient
        suppressFor: 20hour
        greaterThanOrEqualTo:
           device: Device B
           state: temperatureAmbient
    actions:
      - type: home.command.Notification
        title: Temperature Alert!
        body: Temp A > Temp B

In the code above you can see that instead of assigning a fixed value to greaterThanOrEqualTo field, it's defined as a Struct.

Re: Script Editor - starter based on comparison between two devices' values

arm_dpe — Fri, 18 Jul 2025 19:36:48 GMT

Unfortunately, Google Home Automations Script Editor does not currently support comparing dynamic values between two devices directly, like you're trying to do with greaterThanOrEqualTo referencing another device’s state.

I recommend submitting a feature request via Google Issue Tracker. The more visibility and feedback this feature gets, the more likely it is to be considered in future updates. Please share the issue ID here.

Re: Script Editor - starter based on comparison between two devices' values

fabiomolinar — Sun, 20 Jul 2025 19:20:38 GMT

Thank you for confirming and for suggesting a bug is created. Just did that. Bug id 433073111 created. Thank you.