I have always been interested in making some things happen automatically on a layout. This layout is giving me a chance to try out some automation ideas and this is the first one of these ideas that I have actually gotten to work on.
With this layout design it was not really possible to run a train
totally hands free. Which ever yard a train came into the turnouts that
create the reverse loop would have to we moved to the correct position
and then moved again for the train to leave. The PSX-AR boards already take care of the track polarity but I wanted to automate the operation of the points on the reverse loops turnouts.
last post and IR sensors.
The detector assembly is mounted under the yard about where the the UP locomotive is in the previous photo. This location is close to the feeder wires used for detection.
The normally open outputs from this board and the dual detector assembly are connected in parallel with push buttons on the control panel to set the turnouts in motion.