Dimming luminaires from KNX level

Using this flow you will be able to adjust DALI luminaires brightness in the E2D system from the KNX level. The program described in this article is associated with dimming up/down using KNX buttons.

KNX messages structure

We receive the following information from the KNX system:
{"decr_incr":1,"data":1} - start ‘up’
{"decr_incr":0,"data":1} - start ‘down’
{"decr_incr":0,"data":0} -stop dimming

Installing KNX library for Node-RED

You need to install node-red-contrib-knx-easy library for Node-RED. You will do that in Settings.

1. Open the Node-RED and go to the Settings tab and select Settings.
   

   

2. Go to the Palette tab. Here you can see all the libraries installed in the current Node-RED version.
   

   

3. In the Palette, select the Install tab. Type in node-red-contrib-knx-easy in the search bar and click the Install button for the needed library.

4. You will notice the prompt message. You can read the node documentation and select Install to confirm your action.