$GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47
But what exactly is "NMEA 0183 output," and how do you use it effectively? NMEA 0183 is an electrical and data protocol standard defined by the National Marine Electronics Association (NMEA). Unlike a home computer network, it is a point-to-point (often called "one talker, multiple listeners") serial bus. nmea 0183 output
The key constraint is this: All other devices on that circuit must be "Listeners." The Anatomy of an NMEA 0183 Output Sentence When a device produces NMEA 0183 output, it sends strings of ASCII text. These are called "sentences." A typical sentence looks like this: $GPGGA,123519,4807
In the world of marine electronics, data is as critical as fuel. For decades, the standard for transmitting that data—from a GPS to a chartplotter, or from a wind instrument to an autopilot—has been NMEA 0183 . While its successor, NMEA 2000, has gained popularity, NMEA 0183 remains ubiquitous, particularly for outputting data from sensors to legacy devices, single-board computers (like Raspberry Pi), and VHF radios. The key constraint is this: All other devices