Using an Arduino UnoR3 Mega2560 and two 32-bit servo controllers to control turnouts on a large N-scale model railroad layout I have a large, complex layout, presently 20 ft long, with more than 40 ...

My N scale model railroad has about 50 mainline and storage ... It should protrude from the stand no more than the thickness of the turnout switch rod (about .040") to prevent it from getting ...