GPS Receiver Overview

GPS data can be read from an internal serial port (/dev/ttyS3).

GPS Port Information:

Port = /dev/ttyS3
Default baudrate = 9600, 8, N, 1
Default NMEA = GGA / GSA / GSV / RMC / VTG  every second

Visual Indicator:

LED indicator to indicate the current position status:
ON = no valid fix position
BLINK = valid fix position

For MultiConnect OCG-D, the GPS LED indicator exists on the GPS module itself (inside the unit).
For MultiConnect OCG-E, the GPS LED is only on the developer board, not on the MT100EOCG gateway board.

Example of NMEA messages:

GPS NMEA Protocol Overview:

NMEA Message Protocol

GPS Binary Protocol Overview:

Binary Message Protocol