I apologize if this article is a duplicate but I feel like I’ve never been able to find a concrete answer on this. I have a lot of projects built with Arduino UNO and MEGA and I would like to integrate them with the SmartThings Hub. I read that there used to be a shield for this but it was discontinued. A few articles I have read discuss a ST_Anything. Is this just a handler I can put directly into my UNO/MEGA code to send signals to my hub without a shield? As a note I am using the Arduino Ethernet Shield 2.