Hi all - New to Lego trains here - I am just about to start work on a medium sized setup which involves a few tunnels and 'dark' areas. I am weighing up a PF or 9V setup and Im curious how the IR sensor works when a train goes in a tunnel, or in my case, behind some MDF and plywood.
My question is, does the IR sensor rely on a constant signal from the remote to keep going, or does it just switch between speeds when the user changes them?
I would like to do 9V, but the cost is quite prohibitive. So am hoping PF will be fine when the train goes behind some scenery / tunnel.
Thanks!