Flashing some of my lights after a trigger

Configuration
1

Hi Guys
Guys can you explain as what I need to do to create a automation where some of my lights will flash for maybe 30 seconds after a certain switch come on.
I struggle with my hearing so seeing a light flashing will advise me that my garage door is still open.
I managed to create automation to announce on google home its open, but want to be able to see the lights flasing. Thanks

2

post your announcement automation (properly formatted text) and I’m sure someone can help you with the rest.

3

i created two scenes with the lamps in white color and in red color.
Then i made an automation, which sets one of the scenes, wait 1 second, set second scene, wait 1 second and so on…

This is my code:

alias: Schuur open
description: ''
trigger:
  - platform: state
    entity_id: remote.sonoff_1000cdcc13
    attribute: ts
condition:
  - condition: state
    entity_id: remote.sonoff_1000cdcc13
    state: Deur Schuur
    attribute: name
action:
  - service: notify.mobile_app_in2013
    data:
      message: >-
        Hallo, iemand heeft zojuist de schuur open gemaakt. Hopelijk is dat een
        gewenste actie...
  - service: notify.mobile_app_mischa_op6t
    data:
      message: >-
        Hallo, iemand heeft zojuist de schuur open gemaakt. Hopelijk is dat een
        gewenste actie...
  - service: notify.tablet
    data:
      message: >-
        Hallo, iemand heeft zojuist de schuur open gemaakt. Hopelijk is dat een
        gewenste actie...
  - scene: scene.alarm_lampen
  - delay: '00:00:01'
  - scene: scene.lampen_keuken_tafel_normaal
  - delay: '00:00:01'
  - scene: scene.alarm_lampen
  - delay: '00:00:01'
  - scene: scene.lamp_keuken_tafel_normaal
mode: single

it also notifies our mobiles and will be spoken out on a wall mounted tablet. No one can miss this… :slight_smile:

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