I started a similar discussion on the electronics I wanted to build for a layout I am designing. This is the thread https://ogrforum.ogaugerr.com/...ontrol-lcc-and-esp32 . The thread did not generate much interest but I still think it is the best and most inexpensive way to automate a layout. I have designed and received the boards made by PCBway for 4 of the nodes. Layout Command Control, LCC, is a NMRA standard. Several HO LCC enthusiasts are porting the LCC software to the ESP32. They claim they have 90% say the performance needed on the ESP32 and are working on improving the software efficiency. I am building a simple layout to demonstrate LCC, the boards and software.