[Free][Windows only] UE4Duino 2 - Arduino (COM port) communication

Hey, really cool project! I’m having trouble using it though. I’ve installed it by placing it in a Plugins folder and everything. My problem is, when I go to add nodes in a blueprint, it seems that I only have “Open Serial Port.” I can’t find a Close Port, Read, or Write. New to Arduino and UE4, so I would be grateful if someone could walk me through this. Thanks!