Thanks for the reply! It’s great that you mention Loxone, it is one of the greatest sources of my confusion. With KNX, I need to use a KNX-compatible cable to the switches. Loxone being “just a PLC” system can use mains cable to light switches/buttons, correct? On their site they recommend using CAT7, however I don’t think I’ve ever seen a light switch that is wired with CAT, so what am I missing? Additionally, I think I’ve seen people mention PLC systems with Raspberry Pi or Arduinos, is that possible and why not just do that if going down the PLC route, sounds cheaper?