You can create an automation or script to play an announcement on the device.

1. Go to Settings > Automations & scripts and create a new automation.
2. Define your trigger.
3. Under Then do, select Add action and from the menu, select Assist satellite.
4. Select Announce.
5. Enter the message you want to play and select the device you want to play it on.
6. Save the automation.

If you prefer editing in YAML, you can find an example with the assist_satellite.announce action below.

action: assist_satellite.announce
  data:
    message: The laundry is done
  target:
    entity_id: assist_satellite.home_assistant_voice_012345

You can use light.turn_on and light.turn_off actions to control the light.

You can turn it on or off when something happens and define color and effects.

action: light.turn_on
  data:
    rgb_color:
      - 255
      - 105
      - 180
  target:
    entity_id: light.home_assistant_voice_012345_led_ring
action: light.turn_off
target:
  entity_id: light.home_assistant_voice_012345_led_ring

1. To select a different assistant when something happens, use the select.select_option action. For example, when a button is pressed.

action: select.select_option
  data:
    option: preferred
  target:
    entity_id: select.home_assistant_voice_012345_assist_pipeline

2. Under Options, enter the name of the voice assistant.
   • Make sure to spell it exactly as you named it. For example Spanish.
3. To learn how to set up an automation based on a button press, follow the steps on Automating on a button press.
   • Info: Those instructions are based on a Matter device. The process is very similar for other devices featuring a button.

1. To select a different wake word when something happens, use the select.select_option action.

action: select.select_option
  data:
    option: Okay Nabu
  target:
    entity_id: select.home_assistant_voice_012345_wake_word

2. Under Options, enter the preferred wake word. The default options are Hey Jarvis, Hey Mycroft, and Okay Nabu.
   • Make sure to spell it exactly as you named it.