Parameter
Description
latitude
Latitude in d.dddd format (float). The latitude is presented in the N basis
(negative latitudes are in the southern hemisphere)
longitude
Longitude in d.dddd format (float). The longitude is presented in the E basis
(negative longitudes are in the western hemisphere)
altitude
Altitude in meters (float)
course
Course in degrees (0..359) (float). Course proceeds clockwise, with
0=north, 90=east, 180=south, and 270=west
speed
Speed in kilometers per hour (0..999) (float)
Notes:
<rate>
is a value between 1 and 2147483647 (2
31
-1). It will be the number of seconds in
between each message. If
<rate>
is 0, no messages will be sent.
If
<rate>
is valid, no
$GN
messages will be sent by the device until the GPS has obtained a
valid position reference as indicated by the
$TILE POSITION*2d
message .
Examples:
Calling the most recent GPS message:
$GN @*69
$GN 37.8921,-122.0155,77,89,2*0c
Returns a location of
37.8921N, 122.0155W
. The device's altitude is
77m
, its course is
89
degrees
, and it is moving at
2 kilometers per hour
.
October 2020
Swarm Tile Manual - Rev 1.10
42/65
