gps

Documentation

Index

• Constants
• type GPS
• type GPSCore
  • func (g *GPSCore) NextFix() (nmea.GGA, error)
  • func (g *GPSCore) NextSentence() (nmea.Sentence, error)
• type GPSDevice
• type I2CGPS
  • func NewI2CGPS(bus i2c.BusCloser, opts *Opts) (*I2CGPS, error)
  • func (g *I2CGPS) Readline() (string, error)
• type Opts
• type SerialGPS
  • func NewSerialGPSReader(port string, baudRate uint, dataBits uint, stopBits uint) (gps *SerialGPS, err error)
  • func (g *SerialGPS) Readline() (string, error)

Constants

const BYTES_READY_REG uint8 = 0xFD

const DefaultAddr = 0x10

const READ_REG uint8 = 0xFF

Types

type GPS

type GPS interface {
	NextSentence() (nmea.Sentence, error)
	NextFix() (nmea.GGA, error)
	Readline() (string, error)
}

GPS is the end-user GPS structure to use.

type GPSCore

type GPSCore struct {
	// contains filtered or unexported fields
}

GPSCore is high level methods for GPS devices that uses a GPSDevice for low level access

func (*GPSCore) NextFix

func (g *GPSCore) NextFix() (nmea.GGA, error)

func (*GPSCore) NextSentence

func (g *GPSCore) NextSentence() (nmea.Sentence, error)

type GPSDevice

type GPSDevice interface {
	Readline() (string, error)
}

GPSDevice is an interface to a GPS device. This should be implemented for different types of devices and gives the ability to read/write NMEA strings with the device A specific implementation of a GPS device should implement GPSDevice and then composite GPSCore into its struct so that it provides a complete GPS intergace

type I2CGPS

type I2CGPS struct {
	GPSCore
	Conn conn.Conn
	// contains filtered or unexported fields
}

func NewI2CGPS

func NewI2CGPS(bus i2c.BusCloser, opts *Opts) (*I2CGPS, error)

NewI2CGPS opens a handle to an i2c gps

func (*I2CGPS) Readline

func (g *I2CGPS) Readline() (string, error)

type Opts

type Opts struct {
}

type SerialGPS

type SerialGPS struct {
	GPSCore
	// contains filtered or unexported fields
}

func NewSerialGPSReader

func NewSerialGPSReader(port string, baudRate uint, dataBits uint, stopBits uint) (gps *SerialGPS, err error)

func (*SerialGPS) Readline

func (g *SerialGPS) Readline() (string, error)