Knx Day/Night DateTime Time Date

[gegy (Georg)]

Hello all,

i am currently switching from openhab 3 to HA. I have a running KNX system at my home. I was able to implement the knx add on and add all my knx entities by split yaml configuration. Everythink works like a charm. But now i am stucking at sending the date and the time and a day/night state to my knx bus.

Day/Night:
What i know so far is, that i need a toggle switch in HA which i can then send to a knx address. I tried to add this toggle switch by a helper (Settings → Devices & Services → Helpers) but i can not set the platform and the knx address in the HA UI. I am refering to this post:

Exposing a boolean value to a KNX group address possible?

There is a completely different approach to solve the OP’s problem. The fact that the expose method exists in the KNX component leads many users to believe that this is the only way to transport data from HA to the KNX bus. But it is not. The right way to solve this task is to create a KNX switch in HA and bind it to your boolean KNX group address. Then you can simply write to the HA switch with switch.turn_on / switch.turn_off and the state change will be copied to the KNX bus. switch: - p…

The link shows a yaml configuration, but don’t know how to add this switch correctly by yaml. Is there a way in the UI to add this switch with the properties from the post?
I tried to add it to my config file. Testing the config file shows that everything is working, but after restarting HA the entity is not shown in my entities.

DateTime/Date/Time:
I also need this three properties on my bus. I have an address for each of them. But how can i get them to my knx bus?

I hope someone can help me. Please be lenient with me, because i am absolute beginner in configure and using HA, but i need to get up my system running.

[farmio (Matthias Alphart)]

Hi!
How to expose date and time to the Knx bus is explicitly written in the documentation. See Knx expose

There is also documented how to configure a switch. This is not possible from UI - only yaml. You may set the switch to respond_to_read: true to have it keep its state and answer to requests. In an automation just turn it on/off on Your desired day/night change time.

If you already have some kind of binary_sensor in HA for das/night you may just use expose to send that state change to the bus.

[gegy (Georg)]

Nice! thank you for your answer, i will immediately investigate in this.

[gegy (Georg)]

Very nice!
Day/Night is now working with a toggle switch, and i think i will also get date and time runing.
But i have one more question. The toggle switch, i crated in helpers, is setting the day/night state reverse. When i turn it on, i sets day state. Turning of, sets it to night state. Can i reverse the toggle switch?
If i can’t do it, how can i create a “revers toggle” switch?

[farmio (Matthias Alphart)]

How did you configure it? There are many ways… via expose you can’t invert - you’d have to create an inverted helper binary_sensor.
Or you create an automation using the knx.send service.
Via a Switch you can just configure invert: true.

[gegy (Georg)]

I created a toggle helper, which givs me an “input_boolean.xxxxx”. There is no binary sensor in helpers UI.

[farmio (Matthias Alphart)]

Just create a Knx Switch without a state_address instead.

[gegy (Georg)]

That’s it! Thank you man!

[adamdyga]

@gegy I know this is a little bit off-topic, but what were the reasons to switch from OpenHab to HA?