KNX - relative dimming for lights

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81

This is not a modified version of my blueprint.
It instructs to create a Knx light entity for a non-Knx light. I would never recommend that.

82

Noted.

I ceased using that, too :slight_smile: Did not work, and I found Massimo’s integration with Nodered. Thanks for the clarification!

83

The KNX dim up / dim down commands are to fast for Philips Hue. That’s why a long button push set’s a fix value.

If you want another value than 50% you can configure it in the automation.

Screenshot_20240509-172639
Screenshot_20240509-1726391080×2020 153 KB

84

With this approach you are using knx push buttons as input to control hue lights over an automation.

All good, nothing bad happens :wink:

PS: I woudn’t plan my whole house with this approch neighter, but it is very usefull to integrate some decorative lights.

85

I wanted to setup dimming via my Gira switches but found that this automation does not what I expected.
I configured my switches to keep sending the relative dimming telegrams while I press the switch button.
This automation did not take this into account and just dimmed by a fixed value over time.
I therefore created a fork that handles the individual dimming messages for 12.5, 25 and 50% and adjusts the percentage of the brightness directly.
Hope this helps others: KNX - relative dimming for lights blueprint ¡ GitHub

1 Like
86

Hey everyone,

i am new here and like to share my experience with this toppic.
I also handle my hue light with a knx-binärinput. I took this Blueprint and it’s working quiet nice.
I only got the issue that after a long time not pushing the button to activate the input the hue group (6 lights) dont react instantly. After a second push they turn on as their last brightness. I took a look at the log and the group first turns “off” even if they are allready “off”. Till now I dont got a fix for this issue but maybe here is one who helps in my case.

:slight_smile:

87

Knx switches send ON or OFF telegrams depending on their internal state. So if the actual state was changed to eg. ON, without the Knx switch recognizing it, it will send an ON when pushed.
So you’d need to update the internal state of the switches.

88

Very nice blueprint!
Is there an easy way to get the dimm state feedback from zigbee dimming light to the KNX system with DPT 5.001?

89

Sure, you can just do that from the Knx config panel or via yaml expose.
https://www.home-assistant.io/integrations/knx/#entity-exposures

90

Since 2026.7.1 I get this repair for automations using this blueprint:

The automation "<automation name>" (automation.<automation name>) has an unknown action: knx.event_register.

This error prevents the automation from running correctly. Maybe this action is no longer available, or perhaps a typo caused it.

Is there a way to fix this and update the blueprint without recreating all automations?

91

Are you sure the Knx integration was loaded correctly?

92

Yes, it doesn’t show any errors and reading/controlling KNX devices works perfectly

93

Does the action show up in Settings → Developer tools → Actions?

I do use this blueprint (just checked - still the old version with knx.event_register) successfully with 2026.7.1

Here would be the modern version with knx.telegram trigger instead of event_register: https://gist.github.com/farmio/bc23cc2a1a81408751947309408ff164