Forecasted data as triggers

[sk365]

Hi, thank you for programming this excellent integration. Please allow me a newbie question: How do I use forecasts delivered by the sensor as triggers? For example, I want my window blinds to open if the maximum of forecasted wind speeds within the next n hours exceed a certain threshold. So, how would I access the wind speed in n hours from now? Thank you for your help. Stefan

[diplix]

you’ll have to use a template sensor , i did that to create an alarm if the temperature drops below 0°C.

template:
  - sensor:
      - name: Tiefsttemperatur in 24 h
        unique_id: E74013A7-348C-44F8-B4B1-93E5992C1840
        unit_of_measurement: °C
        state: >-
            {% set tomorrow = (as_timestamp(now() + timedelta(hours=24)) | timestamp_local) %}
            {% set today = state_attr('sensor.temperature_berlin_tegel', 'data')| selectattr('datetime', 'lt', tomorrow) | map(attribute='value') | list %}
            {{ today | min }}

this should also work to get a sensor to show the highest wind speed in the next n hours which can then be used as an automation trigger.

[sk365]

Oh, thank you so much for your superquick reply, Felix!

Now, how do use of this sensor?

I tried to paste the code below into my configuration.yaml (using my DWD integration cell which happens to be sensor.temperature_berlin_alex) but I cannot see it in my entities list.

Please excuse my probably trivial question - I am really new to Home Assistant.

Thank you so much for your help!

Am 15.03.2022 um 18:48 schrieb felix schwenzel @.***>:

you’ll have to use a template sensor , i did that to create an alarm if the temperature drops below 0°C.

• sensor:
  • name: Tiefsttemperatur in 24 h unique_id: E74013A7-348C-44F8-B4B1-93E5992C1840 unit_of_measurement: °C state: >- {% set tomorrow = (as_timestamp(now() + timedelta(hours=24)) | timestamp_local) %} {% set today = state_attr('sensor.temperature_berlin_tegel', 'data')| selectattr('datetime', 'lt', tomorrow) | map(attribute='value') | list %} {{ today | min }} this should also work to get a sensor to show the highest wind speed in the next n hours which can then be used as an automation trigger.

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[diplix]

sorry, i did an incomplete copy&paste missing the template: line. i corrected the code above and hope it works like this.

[sk365]

Hi Felix,

thank you again. It works now, also with wind and other parameters. But strangely it works only timedelta is set to 12 hours or more. If timedelta is set to a lesser amount, the template sensor yield either 0 or „not available“ I did set the DWD weather integration to 1 hour sampling interval. Any idea what to do?

Best, Stefan

Am 15.03.2022 um 21:42 schrieb felix schwenzel @.***>:

sorry, i did an incomplete copy&paste missing the template: line. i corrected the code above and hope it works like this.

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[diplix]

seems to work for me, at least with the temperature.

[sk365]

now working for me, too no idea why it didn’t before thanks again

Am 16.03.2022 um 18:39 schrieb felix schwenzel @.***>:

seems to work for me, at least with the temperature. https://user-images.githubusercontent.com/4541494/158653171-cc7b969e-4aaa-43c7-bd05-4bccae0dc846.png — Reply to this email directly, view it on GitHub https://github.com/FL550/dwd_weather/issues/46#issuecomment-1069389188, or unsubscribe https://github.com/notifications/unsubscribe-auth/ALNM4EQB5Z5LOKPXAB5FFG3VAIMFVANCNFSM5QZI625Q. Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub. You are receiving this because you authored the thread.

[FL550]

Is the sensor showing the forecast data in the correct interval? You can check this in the developer tab

[sk365]

Yes it is

Am 16.03.2022 um 19:34 schrieb FL550 @.***>:

Is the sensor showing the forecast data in the correct interval?

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[FL550]

oh, I oversaw your last comment 😅 glad everything is working now!