Ring floodlight cam siren

Has anyone figured out how (if it’s even possible) to activate the siren on the ring floodlight camera via SmartThings?

It can be done, but it’s not easy. Talk to the people in the following thread:

You may also be able to do it through the free app Stringify as a “man in the middle,” and that method would be easier, so you might also look into that if you don’t mind setting up the rules in another app.