Hi guys, I am having the EXACT same issue when trying to add the slat angle from KNX Rollershutters to HomeKit. I think that everyone with KNX will have this issue. So happy to read your active conversation on this.
I have it now running in a quite complicated way but working.
For each rollershutter in the house:
1 Rollershutter Equipment Group [HomeKit…]
- 1 Rollershutter Item for Position [HomeKit…]
- 1 Dimmer Item for Slat Angle
- 1 Number Item for Slat Angle Conversion HomeKit [HomeKit…]
1 Rule for each rollershutter which writes from the dimmer to number including conversion and 1 Rule for the other direction