Controlling a model train with Arduino

Other Hardware Sensors
1

Hi!

I want to build a model railroad layout with sensors so the Arduino will control the train, for example, stopping it when it passes near a sensor. I think I can use an IR LED and receiver and read that HIGH/LOW level with the Arduino.

Do you think that the signal from the receiver will be read even through some meters of wire?

Is there any example?

Thanks

2

Twisted pair works fine.

Take a look at "miniature reed switch". Thees are well suited to place along the track.
A small magnet will activate them