GPS Engine Board M-9129
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5. User Interface
M-9129 provides 2-wire digital UART port for communication of GPS position
data using NMEA protocol or MTK extension protocol. UART port is capable of
4800 to 115200 baud rate.
5.1 NMEA Protocol
M-9129 is default to support standard NMEA-0183 protocol. In addition, a
series of MTK extensions (PMTK messages) have been developed that can
be used to provide extended capabilities common to many applications.
5.2 NMEA Protocol format
M-9129 is capable of supporting following NMEA formats:
NMEA RECORD
Description
GGA
GPS fix data
GLL
Geographic
GSA
GNSS DOP and active satellite
GSV
GNSS Satellites in view
RMC
Recommended minimum specific GNSS data
VTG
Course Over Ground and Ground Speed
ZDA
Time & Data
