Home Assistant script to control venetian blinds with Shelly

cover_position_tilt.yaml

# Have a look at the blog post about this script:
# https://medium.com/@lukasvice/a-utility-script-for-controlling-venetian-blinds-with-shelly-in-home-assistant-2e5cbf2d8d5f

script:
  cover_position_tilt:
    mode: parallel
    fields:
      entity_id:
        description: "The cover entity"
        example: "cover.X"
      position:
        description: "Position of the cover"
        example: 100
      tilt_position:
        description: "Tilt position (optional)"
        example: 100
    sequence:
      - alias: "Set variables"
        variables:
          # Time in ms for a full tilt
          tilt_time_ms: 1800
          # Time between blinds move commands
          cmd_wait_time_ms: 500
          _original_position: "{{ state_attr(entity_id, 'current_position') }}"
      - alias: "Open/Close tilt depending on current position"
        choose:
          # When closing
          - conditions: "{{ state_attr(entity_id, 'current_position') > position|int }}"
            sequence:
              # Move to the desired position
              - service: cover.set_cover_position
                data_template:
                  entity_id: "{{ entity_id }}"
                  position: "{{ position|int }}"
              # Blinds have to be tilted, if tilt_position is set and tilt_position is not fully closed
              - alias: "Check if blinds should be tilted"
                condition: template
                value_template: "{{ tilt_position is defined and tilt_position != none and tilt_position|int > 0 }}"
              # Wait for the blinds to stop (Shelly updates current_position on start/stop)
              # Cancel the script if the position was not received after 100 seconds
              - wait_for_trigger:
                  - platform: template
                    value_template: "{% if state_attr(entity_id, 'current_position') != _original_position %}true{% endif %}"
                timeout: 100
                continue_on_timeout: false
              # If it's not the desired position, the blinds were stopped manually (in this case cancel the script)
              - alias: "Check if blinds have reached desired position"
                condition: template
                value_template: "{% if is_state_attr(entity_id, 'current_position', position|int) %}true{% endif %}"
              - delay:
                  milliseconds: "{{ cmd_wait_time_ms }}"
              # Move the blinds the required time for tilting in the original direction
              - service: cover.close_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_time_ms / 100 * tilt_position|int }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ cmd_wait_time_ms }}"
              # Move the blinds the required time for tilting in the opposite direction
              - service: cover.open_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_time_ms / 100 * tilt_position|int }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
          # When opening
          - conditions: "{{ state_attr(entity_id, 'current_position') < position|int }}"
            sequence:
              # Move to the desired position
              - service: cover.set_cover_position
                data_template:
                  entity_id: "{{ entity_id }}"
                  position: "{{ position|int }}"
              # Blinds have to be tilted, if tilt_position is set and tilt_position is not fully open
              - alias: "Check if blinds should be tilted"
                condition: template
                value_template: "{{ tilt_position is defined and tilt_position != none and tilt_position|int < 100 }}"
              # Wait for the blinds to stop (Shelly updates current_position on start/stop)
              # Cancel the script if the position was not received after 100 seconds
              - wait_for_trigger:
                  - platform: template
                    value_template: "{% if state_attr(entity_id, 'current_position') != _original_position %}true{% endif %}"
                timeout: 100
                continue_on_timeout: false
              # If it's not the desired position, the blinds were stopped manually (in this case cancel the script)
              - alias: "Check if blinds have reached desired position"
                condition: template
                value_template: "{% if is_state_attr(entity_id, 'current_position', position|int) %}true{% endif %}"
              - delay:
                  milliseconds: "{{ cmd_wait_time_ms }}"
              # Move the blinds the required time for tilting in the original direction
              - service: cover.open_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_time_ms / 100 * (100 - tilt_position|int) }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ cmd_wait_time_ms }}"
              # Move the blinds the required time for tilting in the opposite direction
              - service: cover.close_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_time_ms / 100 * (100 - tilt_position|int) }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
        # Special case: the blinds are already in the desired position
        default:
          - alias: "Continue only if blinds are not fully opened or closed"
            condition: template
            value_template: "{{ state_attr(entity_id, 'current_position') > 0 and state_attr(entity_id, 'current_position') < 100 }}"
          - choose:
              # When the blinds are almost closed, move up for the tilt time
              - conditions: "{{ state_attr(entity_id, 'current_position') < 10 }}"
                sequence:
                  - service: cover.open_cover
                    data_template:
                      entity_id: "{{ entity_id }}"
                  - delay:
                      milliseconds: "{{ tilt_time_ms }}"
                  - service: cover.stop_cover
                    data_template:
                      entity_id: "{{ entity_id }}"
            # When the blinds are open, move down for the tilt time
            default:
              - service: cover.close_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_time_ms }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
          - delay:
              milliseconds: "{{ cmd_wait_time_ms }}"
          # Trigger event to restart the script with the original parameters
          - event: start_cover_position_tilt
            event_data:
              entity_id: "{{ entity_id }}"
              position: "{{ position }}"
              tilt_position: "{{ tilt_position }}"

automation:
  # Automation triggered by a custom event to restart the script
  - id: start_cover_position_tilt
    alias: "Start Cover Position Tilt"
    mode: parallel
    trigger:
      - platform: event
        event_type: "start_cover_position_tilt"
    action:
      - service: script.cover_position_tilt
        data_template:
          entity_id: "{{ trigger.event.data.entity_id }}"
          position: "{{ trigger.event.data.position }}"
          tilt_position: "{{ trigger.event.data.tilt_position }}"

how-to-call-the-script.yaml

service: script.cover_position_tilt
data:
  entity_id: cover.shelly_XXX
  position: 70
  tilt_position: 50

Hey @lukasvice,

That's why we always have to move the blinds to get to a known tilt state, before moving the blinds to the desired tilt position. I hope that was understable.

That's clear to me

If the blinds are moved outside the script, the persisted position is erased for the reason described above.

I would have gone in that direction too and make totally sense. How did you delete persisted till position?

Let me know if you have any further questions or ideas.

I'm trying to organize my thoughts because it's hard to explain :-). Whether I don't know if it is technically feasible with HA. I think you're a lot further than me ;)

Currently I wrapped my shelly cover in my own cover template, so that I already have the current tilt position which is set from the UI.

I have 1 to 1 the same thought, that the current tilt position must be set to 0 whenever cover close, cover open or cover set position is executed. Maybe you have a hint how to do that.

So far so good. What I am currently still unsure whether I would really put position and tilt position together in one script or in two separate actions
For example, if I look at the mushroom cover card, these are 2 different actions, but maybe that doesn't have any effect.

My process (as I said unsure if technically possible with HA).

Let's assume resetting tilt position works.
Action 1 set position:
1a. Go to position
2a. If possible, save in an extra attribute in which direction the roller shutter was last moved (up or down)
3a. The roller shutter is in the correct position
4a. Set current tilt position to zero or -1

Set the tilt position :
1b. Calculate how much time (ms) one tilt step needs based on a full tilt ms duration (First thought full tilt / 100)
2b. Based on the current tilt position, calculate the difference that needs to be moved (e.g if you just change the tilt position without moving the shutter and current tilt position is not zero)
3b. Move the cover from the position in the opposite direction to the saved driving direction from step 2a
4b. Duration of movement is difference from 2b * tilt_step_ms from 1b

@MelleD,

I'm pretty sure you've seen my blog post about this script - if not, it's linked here :)

You can split up your scripts, sounds reasonable. With the new Shelly Plus 2 PM firmware version 1.0.0 you can get the last_direction directly from the device. But even with this information, you can't be sure if it's fully tilted or if it's only moved for 0.2 seconds, so maybe it's half tilted. Maybe I'm missing something, but I haven't found a way how to use this information. Anyone with good ideas is welcome! :)

To store the last position and tilt position, I use a trigger-based template sensor that stores the data of each cover as JSON. This script can be triggered by two events:

• Custom (manual): This event is fired by the end of the cover_position_tilt script and the entity_id, position, and tilt_position are passed as arguments
• A cover changes to opening or closing: This resets the stored position in the data to unknown

At the beginning of the cover_position_tilt script, I read the stored position from the JSON and compare it to the desired position. If it's the same, the script stops, otherwise it continues as normal.

I don't think this is the prettiest approach, but I couldn't think of a better one - and it works :) As I said, I'm open to any ideas and improvements.

Here's the template sensor:

template:
  - trigger:
      - id: "cover_position_tilt"
        platform: event
        event_type: "cover_position_tilt"
      - platform: state
        entity_id:
          - cover.shelly_2_5_COVER_ID
          - cover.shelly_2_5_COVER_ID
          - cover.shelly_2_5_COVER_ID
        to:
          - "opening"
          - "closing"
    sensor:
      - name: "cover_states"
        state: >
          {% set current = ('{}' if states('sensor.cover_states') == 'unknown' else states('sensor.cover_states')) | from_json %}
          {% if trigger.id == "cover_position_tilt" -%}
            {% set new = {
              trigger.event.data.entity_id: {
                'position': trigger.event.data.position,
                'tilt_position': trigger.event.data.tilt_position
              }
            } %}
          {%- else -%}
            {% set new = {
              trigger.entity_id: 'unknown'
            } %}
          {%- endif %}
          {{ dict(current, **new) | to_json }}

This is how to trigger it manually at the end of the open and close movements in the script:

- event: cover_position_tilt
  event_data:
    entity_id: "{{ entity_id }}"
    position: "{{ position }}"
    tilt_position: "{{ tilt_position }}"

And this is the comparison at the beginning of the script:

- alias: "Set variables"
  variables:
    _last_position: >
      {% set cover_states = ('{}' if states('sensor.cover_states') == 'unknown' else states('sensor.cover_states')) | from_json %}
      {{ cover_states[entity_id].position if entity_id in cover_states and 'position' in cover_states[entity_id] else 'unknown' }}
    _last_tilt_position: >
      {% set cover_states = ('{}' if states('sensor.cover_states') == 'unknown' else states('sensor.cover_states')) | from_json %}
      {{ cover_states[entity_id].tilt_position if entity_id in cover_states and 'tilt_position' in cover_states[entity_id] else 'unknown' }}
- condition: template
  value_template: >
     {{ _last_position == 'unknown' or _last_tilt_position == 'unknown' or position != _last_position or tilt_position != _last_tilt_position }}

Thanks for all the feedback on the first line that was causing problems - I have removed it from the code!

@lukasvice

Exactly I know your links and the problems :-)

I am currently creating the temporary data in a temp sensor because the data was always deleted from the original sensor. Maybe there's a better way. In addition, I create a wrapper cover for the blinds to call the scripts directly.

I can also share my script this week, if you want

I solved it by 6 conditions.

1. last_action open & current_tilt_position = 0
2. last_action close & current_tilt_position = 0
3. last_action open & (current_tilt_position - new_tilt_position) > 0
4. last_action close & (current_tilt_position - new_tilt_position) > 0
5. last_action open & (current_tilt_position - new_tilt_position) < 0
6. last_action close & (current_tilt_position - new_tilt_position) < 0

The only edge case that hasn't been resolved is when someone manually tilts the blinds.

My idea (untested), since I'm already overriding open_cover and stop_cover, I could set the current_tilt_positiona to 50 as soon as the position was offset by just 1%.

@MelleD Sounds promising! Tbh, I didn't fully understand your approach, but I'm very curious to see your solution :)

I do have one question though: Imagine you have the blinds at 70% with a 50% tilt position. Now you move the blinds up to 71%. In reality, this only changes the tilt and not the position. How do you deal with this, or how do you know correct the state?

@lukasvice

Here are currently my try:

Like you, you have to play around with the time a bit.
Maybe I need 2 times.

script:
  open_cover:
    mode: parallel
    fields:
      entity_id:
        description: "The orginal cover entity"
        example: "cover.X"
    sequence:
      - alias: "Set variables"
        variables:
          temp: "_temp"
          entity_id_temp: "{{ entity_id + temp }}"
          current_position: "{{ state_attr(entity_id, 'current_position') }}"
      - service: python_script.set_state_attribute
        data:
          entity_id: "{{entity_id_temp}}"
          state_attr: current_tilt_position
          state: 0
      - service: python_script.set_state_attribute
        data:
          entity_id: "{{entity_id_temp}}"
          state_attr: last_action
          state: "open_cover"
      - service: cover.open_cover
        target:
          entity_id: "{{entity_id}}"
        data: {}

  close_cover:
    mode: parallel
    fields:
      entity_id:
        description: "The orginal cover entity"
        example: "cover.X"
    sequence:
      - alias: "Set variables"
        variables:
          temp: "_temp"
          entity_id_temp: "{{ entity_id + temp }}"
      - service: python_script.set_state_attribute
        data:
          entity_id: "{{entity_id_temp}}"
          state_attr: current_tilt_position
          state: 0
      - service: python_script.set_state_attribute
        data:
          entity_id: "{{entity_id_temp}}"
          state_attr: last_action
          state: "close_cover"
      - service: cover.close_cover
        target:
          entity_id: "{{entity_id}}"
        data: {}

  set_cover_position_tilt:
    mode: parallel
    fields:
      entity_id:
        description: "The cover entity"
        example: "cover.X"
      tilt_position:
        description: "Tilt position"
        example: 100
    sequence:
      - alias: "Set variables"
        variables:
          tilt_full_time_ms: 1200
          temp: "_temp"
          entity_id_temp: "{{ entity_id + temp }}"
          current_position: "{{ state_attr(entity_id, 'current_position') }}"
          current_tilt_position: "{{state_attr(entity_id_temp, 'current_tilt_position')}}"
      - alias: "Continue only if blinds are not fully opened and tilt position is changed"
        condition: template
        value_template: "{{ current_position is not none and (current_position|int) < 100 and current_tilt_position is not none and (tilt_position|int) != current_tilt_position}}"
      - alias: "Move the blinds"
        choose:
          - conditions: "{{ state_attr(entity_id_temp, 'last_action') == 'open_cover' and current_tilt_position == 0}}"
            sequence:
              - service: cover.close_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_full_time_ms / 100 * tilt_position|int }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - service: python_script.set_state_attribute
                data:
                  entity_id: "{{entity_id_temp}}"
                  state_attr: current_tilt_position
                  state: "{{tilt_position|int}}"
          - conditions: "{{ state_attr(entity_id_temp, 'last_action') == 'close_cover' and current_tilt_position == 0}}"
            sequence:
              - service: cover.open_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_full_time_ms / 100 * tilt_position|int }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - service: python_script.set_state_attribute
                data:
                  entity_id: "{{entity_id_temp}}"
                  state_attr: current_tilt_position
                  state: "{{tilt_position|int}}"
          - conditions: "{{ state_attr(entity_id_temp, 'last_action') == 'open_cover' and current_position != 0 and (tilt_position-current_tilt_position)>0}}"
            sequence:
              - service: cover.close_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_full_time_ms / 100 * (tilt_position-current_tilt_position) }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - service: python_script.set_state_attribute
                data:
                  entity_id: "{{entity_id_temp}}"
                  state_attr: current_tilt_position
                  state: "{{tilt_position|int}}"
          - conditions: "{{ state_attr(entity_id_temp, 'last_action') == 'open_cover' and current_position != 0 and (tilt_position-current_tilt_position)<0}}"
            sequence:
              - service: cover.open_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_full_time_ms / 100 * ((tilt_position-current_tilt_position)*-1) }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
          - conditions: "{{ state_attr(entity_id_temp, 'last_action') == 'close_cover' and current_position != 0 and (tilt_position-current_tilt_position)>0}}"
            sequence:
              - service: cover.open_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_full_time_ms / 100 * (tilt_position-current_tilt_position) }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - service: python_script.set_state_attribute
                data:
                  entity_id: "{{entity_id_temp}}"
                  state_attr: current_tilt_position
                  state: "{{tilt_position|int}}"
          - conditions: "{{ state_attr(entity_id_temp, 'last_action') == 'close_cover' and current_position != 0 and (tilt_position-current_tilt_position)<0}}"
            sequence:
              - service: cover.close_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - delay:
                  milliseconds: "{{ tilt_full_time_ms / 100 * ((tilt_position-current_tilt_position)*-1) }}"
              - service: cover.stop_cover
                data_template:
                  entity_id: "{{ entity_id }}"
              - service: python_script.set_state_attribute
                data:
                  entity_id: "{{entity_id_temp}}"
                  state_attr: current_tilt_position
                  state: "{{tilt_position|int}}"

I do have one question though: Imagine you have the blinds at 70% with a 50% tilt position. Now you move the blinds up to 71%. In reality, this only changes the tilt and not the position. How do you deal with this, or how do you know correct the state?

I would like to do the following if the position moves just 1%.

1. If the current tilt position is 0 I would set it to 50%
2. If the current tilt position != 0 I would subtract or add 50 (depending on the last action)

2a. If the current tilt position is then over 100% I would set it back to 0.

But here my technical knowledge is too weak how and where to find out that the position moved only 1%.

I'm aware that you can't get a 100% accurate solution with this, but I don't have the use case to change the tilt 4 or 5 times either ;).
Most of the time you do it once, maybe a second time to adjust. That works quite well. It would be important to show the manual status.

With the new Shelly Plus 2 PM firmware version 1.0.0 you can get the last_direction directly from the device

With this information, I can remove some settings but I didn't find this information into HA

Can you please help me understand how exactly should I use this? Do you have any tutorial? I am also not familiar much about scripts.

I have several external venetian blinds using Shelly 2PM plus and I need to make tilt control in HA.

If I understand correctly, I have to create "script" in HA for each one, copy in it the content after "-script" and rename entity_id to my id of cover.shelly....
Then create automation with content under "-automation"

What next?

Yes, would be great to have a complete tutorial to better understand how to set this up. I have the pro 2pm which should not make a difference for the tutorial either. 😊

…

On 23 Aug 2023 at 12:36 +0100, AndrejR ***@***.***>, wrote: @Monacoslo commented on this gist. Can you please help me understand how exactly should I use this? Do you have any tutorial? I am also not familiar much about scripts. I have several external venetian blinds using Shelly 2PM plus and I need to make tilt control in HA. If I understand correctly, I have to create "script" in HA for each one, copy in it the content after "-script" and rename entity_id to my id of cover.shelly.... Then create automation with content under "-automation" What next? — Reply to this email directly, view it on GitHub or unsubscribe. You are receiving this email because you commented on the thread. Triage notifications on the go with GitHub Mobile for iOS or Android.

I freshly started with HA and Shellys but after hours of figuring out issues I made it work. Here a summary of my conclusions:

In order to get the position of the covers I had to remove the shellys from HA and Shelly App. Then re-integrate them via the Shelly app and the run the Calibration on the Shelly app (Settings->Calibration). Once completed, re-integrated the Shellys in HA. Based on above replies maybe one additional remark:
The cover_position_tilt.yaml does not need to be modified simply e.g. create a new folder "Packages" via Studio Code Server. Then create a new file in the packages folder with name cover_position_tilt.yaml and copy paste the script content. Next is to add the following in the configuration.yaml

homeassistant:
  packages: !include_dir_named packages/

Once done go in Developer Tools and click on Check Configuration. If everything is good restart HA. Testing of the script: In Developer Tools click on Services and paste the below and click on Call Service

service: script.cover_position_tilt
data:
  entity_id: cover.replace_with_your_shelly_entity_ID
  position: 10
  tilt_position: 40

@FlyingDodo86 Thanks for sharing.

Note that in the meantime, I have updated the script to exclude the "package" line to make it easier for new users to use it. I still use it as a package though.

Hi @lukasvice hope your doing great!, I see you have made great progress. I am just wondering, as I am not a developer, can you confirm to me if this script will do what I am expecting for my setup? :-)

I have the blind boxes installed and all wired up, but have not yet the blinds, so I can still adapt to the best situation.

Like shown on the drawing attached, this is the setup I like and have wired up for. A Shelly (Pro series I have now) unit that is controlled by a manual switch on the wall and the HA. I know that in the past the Shelly HA script needs tweaking to make the tilt work, and I am not sure how this currently works with the wall switches in parallel. I am happy to buy additional WAREMA control system if that would allow for easy integration. I do try to stay away from Wifi or RF and like all wired as some blinds are to far away to reach that way.

Hope you can get back to me.

Appreciated, thanks!

@xbmcgotham yes it will work, checking wiring diagram for shelly 2PM

Thanks @Kepro for verifying this for me with the wiring diagram. 🥳 So is it now as simple to install by connecting the blind motor and connect the wires to the Shelly pro 2pm followed by adding this script to the home assistant and it will work the blind both by switch and HA? Will the tilt also work without having to correct it using the switches manually? Have a great Christmas.

…

On 22 Dec 2023 at 15:15 +0000, Kepro ***@***.***>, wrote: @Kepro commented on this gist. @xbmcgotham yes it will work, checking wiring diagram for shelly 2PM — Reply to this email directly, view it on GitHub or unsubscribe. You are receiving this email because you were mentioned. Triage notifications on the go with GitHub Mobile for iOS or Android.

Does work with Shelly 2PM Plus

@FlyingDodo86 Thanks for sharing.

Note that in the meantime, I have updated the script to exclude the "package" line to make it easier for new users to use it. I still use it as a package though.

Hello @lukasvice, I created a package folder and inside this folder I copied the latest cover_position_tilt.yaml. When I add

homeassistant:
  packages: !include_dir_named packages/

to the configuration.yaml and then check the configuration I get the following warning:

 Konfigurationswarnungen
 Setup of package 'script' failed: Integration 'cover_position_tilt' not found.
 Setup of package 'automation' failed: Invalid package definition 'automation': expected a dictionary. Package will not be initialized

What's my issue?

Hi @u20p17, your approach seems fine to me. It looks like script and automation are somehow being interpreted as package names. Are you sure you're not using !include_dir_merge_named (That would work a bit differently)?

You can also look at some examples here and try to compare your configurations: https://www.home-assistant.io/examples/#example-configurationyaml

@lukasvice, i indeed did use the !include_dir_merge_named… if i delete this line in the configuration.yaml and restart HA i do not see any error/warning, but i can also not see any new script/automation…
something i am doing wrong 🤗

@u20p17, there's a difference between !include_dir_named and !include_dir_merge_named. The merge one requires the package name at the beginning of the file. Try using the one without merge, as you wrote in your original comment. See also the documentation on this: https://www.home-assistant.io/docs/configuration/packages/#create-a-packages-folder.

danke, hatte es tatsächlich falsch^^ jetzt funktionierts (Y)

today i had some time to play with this script, but in my case it is not working as expected. the problem I think is that my venetian blinds do need different times for a full tilt upwards (1400ms) and downwards (1000ms). Do you have the same issue and just took the middle value? if you send tilt position 50 should the blinds stop at around 45deg?

@u20p17 Hmm, my blinds always take the same amount of time regardless of the direction. Maybe you could modify the script so that you have two variables, tilt_time_opening_ms and tilt_time_closing_ms. You can then use these variables in the "opening" or "closing" condition of the script. This might work.