update org.openhab.binding.amazonechocontrol https://janessa.me/esh/org.openhab.binding.amazonechocontrol-3.0.0-SNAPSHOT.jar
will get you the latest changes from @Trinitus01 and some more code improvements (not necessarily thing you might notice, mostly corner cases). I would appreciate some comments if this works well.
This is only for OH3 and will not be backported to OH 2.5.x.