Node-RED - schedule cover position

Zahnweh · August 18, 2021, 11:50am

Hello. I have setup a Node-RED automation to schedule closing and opening my window covers. I created some helpers to be able to enter a time for closing and opening them in my Lovelace Dashboard. Also I created some switches (input_bolean helpers) to activate and deactivate closing / opening automatically. For the scheduling part I used the schedex node. This works pretty fine so far.

Now I want to be able to set the position instead of closing or opening them entirely. So I created another helper to adjust the position via a slider in LL. Works fine, too. But what I’m struggling with is how I can schedule to emit the position as schedex only emits off an on.

Any ideas?

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tobi-bo · August 18, 2021, 2:30pm

Hi,

I don’t know how Schedex is working, but isn’t the following possible?

Whenever you want to “close” the cover in your flow, instead of calling service cover.close_cover do this:

Read the value from your helper with the cover position for “closed” with current_state node
Use the value for your call-service node with service cover.set_position and data like {"position":"{{payload}}"}

Similar for opening.

Zahnweh · August 18, 2021, 2:53pm

This would do it if the scheduling thing wasn’t in the way. If the helper for the cover emits a number and calls service cover.set_position {“position”:"{{payload}}"} isn’t even needed. It sets the cover position anytime the number is emitted by the helper. But I want this to be scheduled to the time given from my input.datetime helper. And so far schedex does only emit “on” or “off” at a certain time. It doesn’t seem to be able to do something else. I’m not bound to Schedex, if there’s any other node that does the trick, I’ll be fine with it.

Kermit · August 18, 2021, 3:29pm

Using two time nodes, one for opening the other for closing. On the closing one use the payload field to override the default call-service node config with the set_cover_position service and position. Exposing each time node will create two switches in HA that will allow you to disable each node individually.

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Zahnweh · August 18, 2021, 5:02pm

That seems to work. Thank you! But I cannot figure where to find the switches exposed by the time nodes.

Kermit · August 18, 2021, 5:17pm

If you looking under Configuration > Integrations > Node-RED Companion in HA. You should be able to find their entity ids there.

Zahnweh · August 18, 2021, 6:28pm

Got them. But I’m afraid the {"service": "set_cover_position", "data": {"position": $entities("input_number.offnung_wohnzimmer_rollo").state}} part is not working. “Call-service” complains that it would rather have an integer.

Herr.Vorragend · August 18, 2021, 6:31pm

Just for your information:
Do you know these nodes?

I really like the blind-control node.

Kermit · August 18, 2021, 6:44pm

wrap $entities("input_number.offnung_wohnzimmer_rollo").state with $number()

$number($entities("input_number.offnung_wohnzimmer_rollo").state)

Zahnweh · August 19, 2021, 6:55am

Dude! It works! Thanks for your help.