AdafruitUltimateGPS

Julia language interface to communicate with the Adafruit Ultimate GPS sensor

Sensor

The Adafruit Ultimate GPS device is GPS module that communicates NMEA messages via RS232.

Sensor Housing

The housing was printed using ASA plastic. Inserts were added post print by widening the bottom holes with soddering.

Installation

pkg> add https://github.com/mdp-aerosol-group/AdafruitUltimateGPS.jl.git

The package depends on LibSerialPort. Ensure that the user has access to the ports by adding the user to the dialout group.

sudo usermod -a -G dialout $USER

Example Usage

No functions are exported by the module to avoid potential namespace collision with other devices. Thus all function calls are prefaced by AdafruitUltimateGPS.

using AdafruitUltimateGPS

# Check for the correct port running list_ports() first
port = AdafruitUltimateGPS.config("/dev/ttyUSB0")

# This streams the raw data from the port to a data file
# This function should only be called once
@async AdafruitUltimateGPS.stream(port, "foo.txt")

# Retrieve the current NMEA Message from the current data buffer. 
# This call can be used for real-time logging. 
data = AdafruitUltimateGPS.get_current_RMC()

Acknowledgements

This work was supported by EPA grant #84042701.