Hi Guys,
A quick example on what $GPWPL messages are. Keep in mind that the sentence Identifier can also be displayed as $GNWPL. The message is the same but some GNSS receivers use this format.
$GPWPL
Waypoint location
eg1. $GPWPL,4917.16,N,12310.64,W,003*65
4917.16,N Latitude of waypoint
12310.64,W Longitude of waypoint
003 Waypoint ID
When a route is active, this sentence is sent once for each
waypoint in the route, in sequence. When all waypoints have
been reported, GPR00 is sent in the next data set. In any
group of sentences, only one WPL sentence, or an R00
sentence, will be sent.
eg2. $GPWPL,5128.62,N,00027.58,W,EGLL*59
1 2 3 4 5 6
1 5128.62 Latitude of nth waypoint on list
2 N North/South
3 00027.58 Longitude of nth waypoint
4 W East/West
5 EGLL Ident of nth waypoint
6 *59 checksum