Abstract: A system including a node, wherein the node includes two separate controllers, each of which is configured to output data to a bus, or receive data from a bus, or output data to and receive data from a bus. At least one controller is configured to monitor the output of the other controller and is configured such that if the at least one controller determines that the other controller is providing improper data or signals, at least part of the output data of the other controller is nullified, overridden or superseded by an output from the at least one controller.

Abstract: A watercraft steer-by-wireless control system including: a directional control system responsive to a directional command signal for steering a watercraft, the directional control system including a rudder position sensor to measure and transmit a rudder position signal, and a helm control system responsive to a helm command signal for receiving a directional input to a helm control unit from an operator, the helm control system including a helm position sensor to produce and transmit a helm position signal to a master control unit in operable communication with the helm control system and the directional control system; the master control unit includes a position control process for generating the directional command signal in response to the helm position signal; and wherein the helm control unit wirelessly communicates with the helm control system.