I want to develope a wifi enabled wall volume “dimmer” switch that can control the volume on a chromecast audio. I was thinking of using a Lutron Caseta switch and trapping the changes with a Ras Pi that would then control the chromecast. I am new to this community so please direct me if this or something similar has been solved.
I have not used the Lutron… is there a better choice? I know I can control with apps and google home already. But I have elderly people who just want a switch on the wall.
Any suggestions? Do I need a hub to use the Lutron or can the RasPi do it by itself?