Meet the NMEA 2000 WiFi Boat Gateway: a smart tool that lets you see data from a NMEA 2000 marine digital network on a PC or smartphone. It supports a wide range of devices that support this protocol. You can get vessel course, speed, position, wind speed and direction, water depth, and other useful data.
The device is compatible with the NMEA 0183 protocol. It costs under $200 at this time.