hi Guys,
A quick example on what $GPR00 messages are. Keep in mind that the sentence Identifier can also be displayed as $GNR00. The message is the same but some GNSS receivers use this format.
$GPR00
List of waypoint IDs in currently active route
eg1. $GPR00,EGLL,EGLM,EGTB,EGUB,EGTK,MBOT,EGTB,*58
eg2. $GPR00,MINST,CHATN,CHAT1,CHATW,CHATM,CHATE,003,004,005,006,007,*05
List of waypoints. This alternates with $GPWPL cycle
which itself cycles waypoints.