Hello!
I have a symfonisk Sound controller (Ikea Zigbee Sound Controller) and I've set it up to control my google chromecast audio device volume. This is a brief guide to point you in one direction which will help get this working for you. Initially it took a bit of fiddling to get this to work as I had made a few incorrect assumptions, so hopefully this will help you.
Note: This guide is assuming you have the Chromecast and the Symfonisk controller connected correctly already.
- Use the Rule Machine app to create a new rule e.g. Chromecast volume
- Create two trigger events: button 2 released & button 3 released
- Create a new local variable called something like "vol"
- Create a new action to set the value of the variable vol to the attribute of the symfonisk controller (operation: device attribute) the name of the attribute is "level"
- Create a new action after the one above, to set the volume on the chromecast, the value to specify in the "Select volume (0 - 100%)" is the variable name created in step 3 (vol) surrounded by percentage characters e.g. %vol%
And that should do it.
