It's amazing how in a model, such as this one, the control system has gone from a bunch of mini-computers and relays over the years, to these days, in modern layouts, tiny DDC control modules and very compact hand held DCC controllers. And on top of that a reasonably mature common control protocol defined by the NMRA (https://www.nmra.org/) that's pretty standard world wide.
http://tmrc.mit.edu/ (no SSL/TLS available)
It's amazing how in a model, such as this one, the control system has gone from a bunch of mini-computers and relays over the years, to these days, in modern layouts, tiny DDC control modules and very compact hand held DCC controllers. And on top of that a reasonably mature common control protocol defined by the NMRA (https://www.nmra.org/) that's pretty standard world wide.