Combining automatisations

I’m a newbie on Home Assistant and I could/would like some help with my automations.
I have a minibieb (Little free libary) that is equiped with a open/close sensor (433 mhz, recieved by a Sonoff RF-bridge running Tasmota). Currently I’ve got two automations, one for when it’s opened and one for when it’s closed.

alias: Melding - Mini bieb (openen)
description: ''
trigger:
  - platform: state
    entity_id: binary_sensor.mini_bieb
    to: 'on'
condition: []
action:
  - service: notify.telegram
    data:
      message: Test
      data:
        photo:
          - url: 'http://10.25.10.90/Streaming/channels/1/picture'
            authentication: digest
            username:
            password:
            caption: De mini bieb wordt geopend
mode: single

This automation sends a picture through Telegram informing us the libary is being opened.

My second automation is:

alias: Melding - Mini bieb (sluiten)
description: ''
trigger:
  - platform: state
    entity_id: binary_sensor.mini_bieb
    to: 'off'
condition: []
action:
  - service: notify.telegram
    data:
      message: De mini bieb wordt gesloten
mode: single

This is informing us that the libary is being closed.

Instead of two automations I would like to have one automation, accomplishing the same.

Zoiets als dit?

- alias: Melding - Mini bieb (openen/sluiten)
  mode: single
  trigger:
    - platform: state
      entity_id: binary_sensor.mini_bieb

  action:
    - service: notify.telegram
      data:
        message: Test
        data:
          photo:
            - url: 'http://10.25.10.90/Streaming/channels/1/picture'
              authentication: digest
              username:
              password:
              caption: >-
                {% if trigger.to_state.state == 'on' %}
                  De mini bieb wordt geopend
                {% else %}
                  De mini bieb wordt gesloten
                {% endif %}

Via de UI was ik op dit gekomen en dat werkt ook, die van jou is wel wat compacter./
Through the UI I created this and it seems to work, yours is a bit more compact.

alias: Melding - Minibieb
description: ''
trigger:
  - platform: state
    entity_id: binary_sensor.mini_bieb
condition: []
action:
  - choose:
      - conditions:
          - condition: state
            entity_id: binary_sensor.mini_bieb
            state: 'on'
        sequence:
          - service: notify.telegram
            data:
              message: Test
              data:
                photo:
                  - url: 'http://10.25.10.90/Streaming/channels/1/picture'
                    authentication: digest
                    username: 
                    password: 
                    caption: De mini bieb wordt geopend
      - conditions:
          - condition: state
            entity_id: binary_sensor.mini_bieb
            state: 'off'
        sequence:
          - service: notify.telegram
            data:
              message: De mini bieb wordt gesloten
    default: []
mode: single

Ik heb jouw code geprobeerd maar krijg een melding:/
I’ve tried your code but got an error:

Message malformed: expected dictionary

Wel jammer dat je vrij weinig gegevens krijgt omtrent waar het fout gaat./
It’s kind of sad that you don’t get that much info about where the error fails.

Guys, please keep it in English.

The automation from @poudenes is not going to do what you want as it will send a picture no matter if it is open or closed and as I understand you only want a picture when it gets opened.

The automation you posted can be made a little more compact by using shorthand conditions and removing the empty condition and default action, otherwise you can’t make it more compact.

alias: Melding - Minibieb
description: ''
trigger:
  - platform: state
    entity_id: binary_sensor.mini_bieb
action:
  - choose:
      - conditions: "{{ states('binary_sensor.mini_bieb') == 'on' }}"
        sequence:
          - service: notify.telegram
            data:
              message: Test
              data:
                photo:
                  - url: 'http://10.25.10.90/Streaming/channels/1/picture'
                    authentication: digest
                    username: 
                    password: 
                    caption: De mini bieb wordt geopend
      - conditions: "{{ states('binary_sensor.mini_bieb') == 'off' }}"
        sequence:
          - service: notify.telegram
            data:
              message: De mini bieb wordt gesloten
mode: single

nice to see other way of automation. Didn’t know you can do 2 conditions in a choose without a default