Remote controller

A wireless remote controller of a hydrofoiling watercraft to communicate with the hydrofoiling watercraft, the wireless remote controller comprising:

• a user interface including a thumbwheel mounted to a body of the wireless remote controller, the thumbwheel movable relative to the body, the thumbwheel including one or more magnets secured thereto;
• a three-dimensional magnetic sensor to sense a magnetic field that changes with movement of the thumbwheel and the one or more magnets secured thereto;
• a watertight cavity;
• communication circuitry disposed in the watertight cavity;
• a processor disposed in the watertight cavity and operably coupled to the three-dimensional magnetic sensor and the communication circuitry, the processor configured to detect user input via the thumbwheel based at least in part on the sensed magnetic field, wherein to detect the user input via the thumbwheel includes determining whether the sensed magnetic field is caused by a stray magnetic field source or by the one or more magnets of the thumbwheel, the processor configured to wirelessly communicate signals to the hydrofoiling watercraft in response to detecting the user input via the thumbwheel;
• a battery disposed in the watertight cavity to provide electrical power to the processor and the communication circuitry;
• and
• a secondary charging coil disposed in the watertight cavity and operable to charge the battery when the secondary charging coil is proximate to a primary charging coil of a charging dock.