A macOS NMEA 0183 instrument simulator and test bench that generates coherent vessel/sensor data and streams it over UDP/TCP to navigation applications.
Working development / test tool
macOSSwiftUINMEA 0183UDPTCPNetwork.framework
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Highlights
Generates coherent vessel state — not unrelated random sensor values
NMEA 0183 sentence types with realistic instrument update rates
Multi-endpoint UDP and TCP output with fault injection modes
Wind-triangle calculations and polar-interpolated boat speed
Live NMEA and transport history console
Automated UDP/TCP loopback testing
Built to test navigation software such as Extasy without a live vessel
MarineSimulator