This sketch will convert an Arduino NANO to a quad servocontroller switch machine driver for model railroad applications. It is intended to receive commands from
either a LocoNet DCC system and/or four remote (fascia-mounted) pushbuttons, each of which can be mounted with a red-green pair of LEDs to indicate turnout positions. Each press of any control button will toggle the associated turnout position, and update LocoNet and running software with the change.
Uses 16 momentary switches to toggle servos