ZHA - Ikea Symfonisk sound controller GEN2 (the square one) with dot-button support for new firmware

@danieldurrans I just tried it and it works very good, i just have one question.
For sonos system is it possible to control the volume of all grouped speakers?

Unfortunately I can’t answer that question. I don’t use my Sonos speakers in groups (my use-case is to control a single speaker in the kitchen). Having read a few other threads I understand it may be necessary to extend the code of the blueprint to determine if the speaker is part of a group and then iterate through the group to control the volume. This isn’t something I am able to test.