NMEA 0183 is a combined electrical and data specification for communication between marine electronic devices such as echo sounders, sonars, anemometers, gyrocompasses, autopilots, and GPS receivers. It is defined and controlled by the National Marine Electronics Association (NMEA).
For developers and integrators requiring the full technical specification, it is important to note that the official NMEA 0183 standard is a copyrighted document available for purchase directly from the NMEA. nmea 0183 pdf
Below is an example of a raw NMEA stream captured from a GPS receiver: NMEA 0183 is a combined electrical and data
The standard specifies both the electrical and data protocol layers to ensure cross-manufacturer compatibility. Below is an example of a raw NMEA
Operates as a "single talker, multiple listeners" system. Only one device can transmit on a single bus, but it can feed data to several receiving units. NMEA 0183 Sentence Structure
While there are dozens of standard sentences, a few are encountered frequently in GPS and navigation applications: