NMEA 0183 uses a "Talker" and "Listener" architecture.
If you need a practical summary table or a sample sentence breakdown from a typical "NMEA 0183 feature list PDF", let me know. nmea 0183 pdf
Despite the emergence of the newer NMEA 2000 standard (which uses a Controller Area Network bus), NMEA 0183 remains the most common protocol for interfacing legacy hardware and many modern third-party sensors due to its simplicity and low implementation cost. NMEA 0183 uses a "Talker" and "Listener" architecture
Uses 8 data bits, no parity, and 1 stop bit (8-N-1). and 1 stop bit (8-N-1). $ttsss
$ttsss,d1,d2,d3,...*hh<CR><LF>
NMEA 0183 data is transmitted in "sentences." Each sentence is a distinct line of text ending with a carriage return and line feed (CR/LF).