Helm:
[Helm PIC] [Shift Reg Clock] [Shift Reg Data] [Shift Reg LED] [Safety Switch] [Reed Switch] [Speed, Direction, Water] [Key Switch] [Key Pad]

Ship:
[Ship PIC] [Ship Slave] [Power Regulator] [Rudder Motor] [Blue LED] [SPI Clock] [SPI Data] [SPI Slave Select] [Red LED] [Propeller Motor]