I have built a searchlight in N-scale from TrainCat. A bit tricky to solder, but the result is very nice.
To this searchlight I have written a program to my LocoNet decoder that emulates the switching between the different aspects.
You can se this in the film, but it looks much better in reality since my camera is not so good.

Introduction

This autumn I will have a room free for setting up a permanent model railroad. The room is 4 x 5 meters and along with the railroad I also have to make room for a working table and some storage. The space is a bit limited but big enough to make an interesting layout that can provide many hours of fun building and operation.

What brought me to model railroading was the technical aspect of the hobby, but the operational part is getting more and more interesting as times go on.