Is it possible to get my Chromecasts and Nest speakers to be controllable in SmartThings? I would love to be able to use my Chromecast with Google TV’s virtual remote from SmartThings and also pause/play media from ST.
Yes, you can. You’ll need need to run a service application on a device of your choosing. I use a windows PC that I leave on 24/7. [Cast Web API] (Installation - overview - cast-web) I’m including a link to to the instructions. Not only can you control all of your Google devices, you can send voice messages to your speakers from ST’s. I have a routine that when the washing machine cycle is complete, I make a voice broadcast to move the laundry to the dryer on a bunch of the speakers in the house.