So i’m just starting out with SmartThings, After a few days of having everything setup and working my wife started asking questions about the high pitched noise. After some experimentation it turns out the hub is making a noise that is just audible to my wife who has above normal hearing but it is well out of my just normal range. We have also noticed that the cat’s behaviour has changed and is spending more time outside.
The Smarthings hub has been moved to the shed and can still see all the sensors, so it’s all good.
Anybody else come across a similar situation?