SH-ESP32 NMEA 2000 gateway is an NMEA 2000 USB gateway software for the Sailor Hat with ESP32 development board, available for purchase at https://hatlabs.fi. If you take an SH-ESP32 board, connect it to an NMEA 2000 panel, flash the firmware in this repository using PlatformIO, and then connect it to the NMEA 2000 network and a computer USB port, you'll have a fully functioning Actisense NGT-1 replacement for a fraction of the cost!

Full documentation for SH-ESP32 NMEA 2000 gateway is available at https://hatlabs.github.io/sh-esp32.