APRSClient Class Reference

Client for APRS communication. More...

#include <APRS.h>

Public Member Functions
	APRSClient (AX25Client *ax)
	Constructor for "classic" mode using AX.25/AFSK.
	APRSClient (PhysicalLayer *phy)
	Constructor for LoRa mode.
int16_t	begin (char sym, const char *callsign=NULL, uint8_t ssid=0, bool alt=false)
	Initialization method.
int16_t	sendPosition (char *destCallsign, uint8_t destSSID, const char *lat, const char *lon, const char *msg=NULL, const char *time=NULL)
	Transmit position.
int16_t	sendMicE (float lat, float lon, uint16_t heading, uint16_t speed, uint8_t type, const uint8_t *telem=NULL, size_t telemLen=0, const char *grid=NULL, const char *status=NULL, int32_t alt=RADIOLIB_APRS_MIC_E_ALTITUDE_UNUSED)
	Transmit position using Mic-E encoding.
int16_t	sendFrame (char *destCallsign, uint8_t destSSID, char *info)
	Transmit generic APRS frame.
void	useRepeaters (char **repeaterCallsigns, uint8_t *repeaterSSIDs, uint8_t numRepeaters)
	Set the repeater callsigns and SSIDs to be used by the frames sent by sendPosition, sendMicE or sendFrame.
void	dropRepeaters ()
	Stop using repeaters.

Detailed Description

Client for APRS communication.

Constructor & Destructor Documentation

APRSClient() [1/2]

APRSClient::APRSClient ( AX25Client * ax )

explicit

Constructor for "classic" mode using AX.25/AFSK.

Parameters

ax	Pointer to the instance of AX25Client to be used for APRS.

APRSClient() [2/2]

APRSClient::APRSClient ( PhysicalLayer * phy )

explicit

Constructor for LoRa mode.

Parameters

phy	Pointer to the wireless module providing PhysicalLayer communication.

Member Function Documentation

begin()

int16_t APRSClient::begin	(	char	sym,
		const char *	callsign = NULL,
		uint8_t	ssid = 0,
		bool	alt = false )

Initialization method.

Parameters

sym	APRS symbol to be displayed.
callsign	Source callsign. Required and only used for APRS over LoRa, ignored in classic mode.
ssid	Source SSID. Only used for APRS over LoRa, ignored in classic mode, defaults to 0.
alt	Whether to use the primary (false) or alternate (true) symbol table. Defaults to primary table.

Returns

Status Codes

dropRepeaters()

void APRSClient::dropRepeaters

(

)

Stop using repeaters.

Returns

Status Codes

sendFrame()

int16_t APRSClient::sendFrame	(	char *	destCallsign,
		uint8_t	destSSID,
		char *	info )

Transmit generic APRS frame.

Parameters

destCallsign	Destination station callsign.
destSSID	Destination station SSID.
info	AX.25 info field contents.

Returns

Status Codes

sendMicE()

int16_t APRSClient::sendMicE	(	float	lat,
		float	lon,
		uint16_t	heading,
		uint16_t	speed,
		uint8_t	type,
		const uint8_t *	telem = NULL,
		size_t	telemLen = 0,
		const char *	grid = NULL,
		const char *	status = NULL,
		int32_t	alt = RADIOLIB_APRS_MIC_E_ALTITUDE_UNUSED )

Transmit position using Mic-E encoding.

Parameters

lat	Geographical latitude, positive for north, negative for south.
lon	Geographical longitude, positive for east, negative for west.
heading	Heading in degrees.
speed	Speed in knots.
type	Mic-E message type - see Mic-E message types..
telem	Pointer to telemetry array (either 2 or 5 bytes long). NULL when telemetry is not used.
telemLen	Telemetry length, 2 or 5. 0 when telemetry is not used.
grid	Maidenhead grid locator. NULL when not used.
status	Status message to send. NULL when not used.
alt	Altitude to send. RADIOLIB_APRS_MIC_E_ALTITUDE_UNUSED when not used.

sendPosition()

int16_t APRSClient::sendPosition	(	char *	destCallsign,
		uint8_t	destSSID,
		const char *	lat,
		const char *	lon,
		const char *	msg = NULL,
		const char *	time = NULL )

Transmit position.

Parameters

destCallsign	Destination station callsign.
destSSID	Destination station SSID.
lat	Latitude as a null-terminated string.
lon	Longitude as a null-terminated string.
msg	Message to be transmitted. Defaults to NULL (no message).
time	Position timestamp. Defaults to NULL (no timestamp).

Returns

Status Codes

useRepeaters()

void APRSClient::useRepeaters	(	char **	repeaterCallsigns,
		uint8_t *	repeaterSSIDs,
		uint8_t	numRepeaters )

Set the repeater callsigns and SSIDs to be used by the frames sent by sendPosition, sendMicE or sendFrame.

Parameters

repeaterCallsigns	Array of repeater callsigns in the form of null-terminated C-strings.
repeaterSSIDs	Array of repeater SSIDs.
numRepeaters	Number of repeaters, maximum is 8.

Returns

Status Codes

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The documentation for this class was generated from the following files:

• src/protocols/APRS/APRS.h
• src/protocols/APRS/APRS.cpp