I’ve looked for answers to this but not getting anywhere at the moment - most posts are about controlling chromecast from within smartthings but I kind of want to do the opposite.
I have 3 Chromecast Audios plugged into 4 amps powering ceilings speakers in 3 rooms. The amps are on all day everyday in case anyone wants to cast to them but we only really use them for a few hours a day. They use power and give off heat so I want to try and reduce the time they’re on for.
I’m looking for a way to turn the amps on when Chromecast audio starts playing. I have all 4 amps on one extensionlead plugged into a smart plug at the moment but it’s working on a simple timer so it turns off at night.
Options I’m considering
Some kind of link (Ifttt?) to trigger smartthings to turn on the amps when Chromecast audio is playing
Motion sensors to turn on the amps when the rooms are occupied
Some kind of Splitter on the audio output from the Chromecast audio going into a sensor that could detect that music was playing and trigger the smart plug.
Remotes/buttons in each room to manually turn the amps on when required. (This is my least favourite option as I don’t want manual intervention.
Any ideas on how to achieve the above (well 1 or 3 at least - 2 and 4 I already know how to do) or any better ideas?