Connect/Disconnect BT Devices - is it possible?

I have a Chromecast with GTV.
Once in awhile I will connect it via bluetooth to another Google speaker (better sound outside).

Is it possible with HA, to run automation so that when I dont want it to reconnect, I can disconnect it or something like that, as an automated process instead of opening GTV and disconnecting the device there?

I have seen posts on monitoring BT connections, but are we able to connect/disconnect devices?