Also watch for my section on the Internet of Things. I have done applications to model railroading that address Layout Command Control. My system is not the current NMRA standard utilizing a CAM bus (I just didn't want more wires under my layout). I have developed a system utilizing XBee S2C modules and a mesh network. The indoor range is great and I have had no noise problems. I can have a dispatcher working on one floor and the layout on another.
I will be also posting information on a vertical lift fiddle yard that utilizes a linear actuator. The unit is assembled and I am working the control mechanism. On my layout, it will form the car deck of the Ann Arbor #7 car ferry. Up to 30 cars can be raised and lowerd from Frankfort Michigan to the Toledo Yard.