The Modern DC Control Wireless System for All Model Railways

Rumble — The project has been named URB (Universal Railway Bus), consists of three parts — a Android App, rules for applying and writing Arduino Sketches (Protocol), and any Arduino hardware. You can interconnect any number of Arduino boards in series, or using a URB topology. Thus, there are no hardware restrictions on the number of devices (turnouts, signals, lights, crossing mechanisms, and other railway items).