garminnmea

Garmin GPS unit. More...

Garmin GPS unit.

Device driver for the Garmin geko 201 handheld GPS unit. Interacts with the unit by speaking NMEA over a serial line. As such, this driver may work with other Garmin units, and (likely with some modification) other NMEA-compliant GPS units.

The driver may also attempt to read DGPS RTCM corrections from a multi-cast network address, and forward these corrections to the GPS unit. The dgps_server utility may be used to gather and broadcast the DGPS RTCM corrections.

NMEA and proprietary Garmin codes can be found at http://home.mira.net/~gnb/gps/nmea.html

Compile-time dependencies

• none

Requires

• none

Provides

• gps

Configuration requests

• none

Configuration file options

• port (string)
  • Default: "/dev/ttyS0"
  • Serial port where the GPS unit is connected
• baud (integer)
  • Default: 4800
  • Speed of serial connection to the GPS unit
• dgps_enable (integer)
  • Default: 1
  • Enable/disable listening for DGPS corrections via UDP multicast (use dgps_server to send the corrections)
• dgps_group (string)
  • Default: "225.0.0.43"
  • Multicast group on which to listen for DGPS corrections
• dgps_port (integer)
  • Default: 7778
  • UDP port on which to listen for DGPS corrections

Example

driver
(
  name "garminnmea"
  provides ["gps:0"]
  port "/dev/ttyS1"
)

Authors:

Brian Gerkey, Andrew Howard