RaspiGPS 📡

RaspberryPi GPS library written in Go for interfacing with GPS serial hardware

This is a library that was written to work with any serial enabled gps module. I only had an option to test the Neo 8 gps, but it should work with any NMEA compliant device. It was written for a series of serial enabled extension boards available from Aliexpress.
Please leave a star if you end up using this library. It means a lot to me. ⭐

Hardware list:

Tested hardware:

• Ublox Neo M8N. I tested this one

Probably working hardware:
All serial and Nmea compliant GPS modules

• Probably all Ublox series gps
• Contact me if you find that your device works

Installation:

go get github.com/LanVukusic/RaspiGPS

Pinout:

Pins on the raspberry are labeled according to the diagram below, referenced with numbers from 1 to 40

• PIN 8 serial TX (gpio15) - gps RX
• PIN 10 serial RX (gpio14) - gps TX

Library is dependent on an external library:

• go serial library - github.com/jacobsa/go-serial

Here is a sample code which connects and recieves data from a gps module.

package main

import (
	"fmt"
	"time"

	"github.com/LanVukusic/RaspiGPS/gps"
)

var a gps.Neo8

func main() {
	// replace "/dev/serial0" with the serial interface you are using
	a.Init("/dev/serial0")

	for {
		time.Sleep(1 * time.Second)
		fmt.Printf("Position: %g %s, %g %s with %d satelites\n", a.Lat, a.NS, a.Lng, a.WE, a.SatTracking)
	}

}

Following functions are available:

Name	DataType	Description
Lat	float64	Latitude
NS	string	North / South part of latitude
Lng	float64	Longitude
WE	string	West / East part of Longitude
Fix	uint64	GPS fix type; described below
SatTracking	uint64	Number of satellites used in tracking
SatInView	uint64	Number of satellites in view
Hdop	float64	Horizontal dilution of precision aka accuracy on land.[meters]
Alti	float64	Altitude above sea level [meters]
TrueTrack	float64	Heading track [degrees azimuth]
GroundSpeedKmh	float64	Speed above ground in [Km/h]
SNR	float64	Signal to noise ratio

GPS fix types: 0 = invalid 1 = GPS fix (SPS) 2 = DGPS fix 3 = PPS fix 4 = Real Time Kinematic 5 = Float RTK 6 = estimated (dead reckoning) (2.3 feature) 7 = Manual input mode 8 = Simulation mode