[BUG] Docs: ha automation example is not suitable for testing with one camera

trigger.{to|from}_state.state in my configuration is a name of camera

I have only one camera, so that state never changes.

condition:
  - condition: template
    value_template: '{{ trigger.to_state.state != trigger.from_state.state }}'

Please consider providing better example for users with one camera and without spamming with notifications. Maybe some timer ? I don’t know… how to solve this

[NickM-27]

Even if I use “single” mode as you suggested ?

So there are some wires getting crossed here. The single mode suggestion was to make it so notifications only came in once every x seconds. This would not work with two people coming in at the same time, just like a motion-sensor-like version, because it still holds one state at a time.

It really comes down to priorities, if you have a priority of not so many notifications then a timer will work at the cost of not working for two people coming in at the same time. If make sure it always sends a notification for multiple people that enter at the same time then the default automation will send many notifications. It is possible to get both but will take crafting of the automation and conditions instead of just using the basic example that was provided in the docs (which is meant to be built upon for specific use cases).

The solution to get the behavior you want in both cases is to not use a timer and instead allow double-take with a automation mode of “parallel” and add conditions comparing the from_state and to_state to only fire when useful information is preset. Currently that sensor in the automation example will send a new notification on every snapshot that double-take finds.

[boehser-enkel]

If you only have one camera you can use the same logic just do trigger.to_state.state.attributes.id and same for the from_state

So: ‘{{ trigger.to_state.state.attributes.id != trigger.to_state.state.attributes.id }}’ & ‘{{ trigger.from_state.state.attributes.id != trigger.from_state.state.attributes.id }}’

That does not work. The automation does not get triggered