diff --git a/src/open_mower/config/mower_config.sh.example b/src/open_mower/config/mower_config.sh.example
index eade45e8..8ce08bd6 100644
--- a/src/open_mower/config/mower_config.sh.example
+++ b/src/open_mower/config/mower_config.sh.example
@@ -88,8 +88,12 @@ export OM_USE_RELATIVE_POSITION=False
# GPS protocol. Use UBX for u-blox chipsets and NMEA for everything else
export OM_GPS_PROTOCOL=UBX
-# If you use a different gps board you maybe want to set a different baudrate.
-export OM_GPS_BAUDRATE="921600"
+# If you use a different gps board setup you maybe want to set a different port and/or baudrate.
+# For example to use an Ardusimple simpleRTK with USB connection:
+# OM_GPS_PORT="/dev/serial/by-id/usb-u-blox_AG_-_www.u-blox.com_u-blox_GNSS_receiver-if00"
+# You can obtain your usb gps path by executing "ls -l /dev/serial/by-id/*" and look for your gps there.
+# export OM_GPS_BAUDRATE="921600"
+# export OM_GPS_PORT="/dev/..."
# If you want to use F9R's sensor fusion, set this to true (you will also need to set DATUM_LAT and DATUM_LONG).
# Consider this option unstable, since I don't have the F9R anymore, so I'm not able to test this.
diff --git a/src/open_mower/launch/include/_gps.launch b/src/open_mower/launch/include/_gps.launch
index 547d72bf..77486236 100644
--- a/src/open_mower/launch/include/_gps.launch
+++ b/src/open_mower/launch/include/_gps.launch
@@ -14,6 +14,7 @@
+