LoRaWAN-compatible node (class A device). More...

#include <LoRaWAN.h>

Public Member Functions
	LoRaWANNode (PhysicalLayer phy, const LoRaWANBand_t band)
	Default constructor. More...

void	wipe ()
	Wipe internal persistent parameters. This will reset all counters and saved variables, so the device will have to rejoin the network.

int16_t	restore ()
	Restore session by loading information from persistent storage. More...

int16_t	beginOTAA (uint64_t joinEUI, uint64_t devEUI, uint8_t nwkKey, uint8_t appKey, uint8_t joinDr=RADIOLIB_LORAWAN_DATA_RATE_UNUSED, bool force=false)
	Join network by performing over-the-air activation. By this procedure, the device will perform an exchange with the network server and set all necessary configuration. More...

int16_t	beginABP (uint32_t addr, uint8_t nwkSKey, uint8_t appSKey, uint8_t fNwkSIntKey=NULL, uint8_t sNwkSIntKey=NULL, bool force=false)
	Join network by performing activation by personalization. In this procedure, all necessary configuration must be provided by the user. More...

bool	isJoined ()
	Whether there is an ongoing session active.

int16_t	saveSession ()
	Save the current state of the session. All variables are compared to what is saved and only the differences are rewritten. More...

int16_t	uplink (const char *str, uint8_t port, bool isConfirmed=false)
	Send a message to the server. More...

int16_t	uplink (uint8_t *data, size_t len, uint8_t port, bool isConfirmed=false)
	Send a message to the server. More...

int16_t	downlink (uint8_t data, size_t len)
	Wait for downlink from the server in either RX1 or RX2 window. More...

int16_t	sendReceive (const char strUp, uint8_t port, uint8_t dataDown, size_t *lenDown, bool isConfirmed=false)
	Send a message to the server and wait for a downlink during Rx1 and/or Rx2 window. More...

int16_t	sendReceive (uint8_t dataUp, size_t lenUp, uint8_t port, uint8_t dataDown, size_t *lenDown, bool isConfirmed=false)
	Send a message to the server and wait for a downlink during Rx1 and/or Rx2 window. More...

void	setDeviceStatus (uint8_t battLevel)
	Set device status. More...

uint32_t	getFcntUp ()
	Returns the last uplink's frame counter.

int16_t	setDatarate (uint8_t drUp)
	Set uplink datarate. This should not be used when ADR is enabled. More...

void	setADR (bool enable=true)
	Toggle ADR to on or off. More...

int16_t	selectSubband (uint8_t idx)
	Select a single subband (8 channels) for fixed bands such as US915. Only available before joining a network. More...

int16_t	selectSubband (uint8_t startChannel, uint8_t endChannel)
	Select a set of channels for fixed bands such as US915. Only available before joining a network. More...

void	setCSMA (uint8_t backoffMax, uint8_t difsSlots, bool enableCSMA=false)
	Configures CSMA for LoRaWAN as per TR-13, LoRa Alliance. More...

Public Attributes
uint8_t	rx1DrOffset

LoRaWANChannel_t	rx2

Detailed Description

LoRaWAN-compatible node (class A device).

Constructor & Destructor Documentation

◆ LoRaWANNode()

LoRaWANNode::LoRaWANNode	(	PhysicalLayer *	phy,
		const LoRaWANBand_t *	band
	)

Default constructor.

Parameters

phy	Pointer to the PhysicalLayer radio module.
band	Pointer to the LoRaWAN band to use.

Member Function Documentation

◆ beginABP()

int16_t LoRaWANNode::beginABP	(	uint32_t	addr,
		uint8_t *	nwkSKey,
		uint8_t *	appSKey,
		uint8_t *	fNwkSIntKey = `NULL`,
		uint8_t *	sNwkSIntKey = `NULL`,
		bool	force = `false`
	)

Join network by performing activation by personalization. In this procedure, all necessary configuration must be provided by the user.

Parameters

addr	Device address.
nwkSKey	Pointer to the network session AES-128 key (LoRaWAN 1.0) or MAC command network session key (LoRaWAN 1.1).
appSKey	Pointer to the application session AES-128 key.
fNwkSIntKey	Pointer to the network session F key (LoRaWAN 1.1), unused for LoRaWAN 1.0.
sNwkSIntKey	Pointer to the network session S key (LoRaWAN 1.1), unused for LoRaWAN 1.0.
force	Set to true to force a new session, even if one exists.

Returns: Status Codes

◆ beginOTAA()

int16_t LoRaWANNode::beginOTAA	(	uint64_t	joinEUI,
		uint64_t	devEUI,
		uint8_t *	nwkKey,
		uint8_t *	appKey,
		uint8_t	joinDr = `RADIOLIB_LORAWAN_DATA_RATE_UNUSED`,
		bool	force = `false`
	)

Join network by performing over-the-air activation. By this procedure, the device will perform an exchange with the network server and set all necessary configuration.

Parameters

joinEUI	8-byte application identifier.
devEUI	8-byte device identifier.
nwkKey	Pointer to the network AES-128 key.
appKey	Pointer to the application AES-128 key.
joinDr	(OTAA:) The datarate at which to send the join-request; (ABP:) ignored
force	Set to true to force joining even if previously joined.

Returns: Status Codes

◆ downlink()

int16_t LoRaWANNode::downlink	(	uint8_t *	data,
		size_t *	len
	)

Wait for downlink from the server in either RX1 or RX2 window.

Parameters

data	Buffer to save received data into.
len	Pointer to variable that will be used to save the number of received bytes.

Returns: Status Codes

◆ restore()

int16_t LoRaWANNode::restore ( )

Restore session by loading information from persistent storage.

Returns: Status Codes

◆ saveSession()

int16_t LoRaWANNode::saveSession ( )

Save the current state of the session. All variables are compared to what is saved and only the differences are rewritten.

Returns: Status Codes

◆ selectSubband() [1/2]

int16_t LoRaWANNode::selectSubband ( uint8_t idx )

Select a single subband (8 channels) for fixed bands such as US915. Only available before joining a network.

Parameters

idx	The subband to be used (starting from 1!)

Returns: Status Codes

◆ selectSubband() [2/2]

int16_t LoRaWANNode::selectSubband	(	uint8_t	startChannel,
		uint8_t	endChannel
	)

Select a set of channels for fixed bands such as US915. Only available before joining a network.

Parameters

startChannel	The first channel of the band to be used (inclusive)
endChannel	The last channel of the band to be used (inclusive)

Returns: Status Codes

◆ sendReceive() [1/2]

int16_t LoRaWANNode::sendReceive	(	const char *	strUp,
		uint8_t	port,
		uint8_t *	dataDown,
		size_t *	lenDown,
		bool	isConfirmed = `false`
	)

Send a message to the server and wait for a downlink during Rx1 and/or Rx2 window.

Parameters

strUp	C-string that will be transmitted.
port	Port number to send the message to.
dataDown	Buffer to save received data into.
lenDown	Pointer to variable that will be used to save the number of received bytes.
isConfirmed	Whether to send a confirmed uplink or not.

Returns: Status Codes

◆ sendReceive() [2/2]

int16_t LoRaWANNode::sendReceive	(	uint8_t *	dataUp,
		size_t	lenUp,
		uint8_t	port,
		uint8_t *	dataDown,
		size_t *	lenDown,
		bool	isConfirmed = `false`
	)

Send a message to the server and wait for a downlink during Rx1 and/or Rx2 window.

Parameters

dataUp	Data to send.
lenUp	Length of the data.
port	Port number to send the message to.
dataDown	Buffer to save received data into.
lenDown	Pointer to variable that will be used to save the number of received bytes.
isConfirmed	Whether to send a confirmed uplink or not.

Returns: Status Codes

◆ setADR()

void LoRaWANNode::setADR ( bool enable = true )

Toggle ADR to on or off.

Parameters

enable Whether to disable ADR or not

◆ setCSMA()

void LoRaWANNode::setCSMA	(	uint8_t	backoffMax,
		uint8_t	difsSlots,
		bool	enableCSMA = `false`
	)

Configures CSMA for LoRaWAN as per TR-13, LoRa Alliance.

Parameters

backoffMax	Num of BO slots to be decremented after DIFS phase. 0 to disable BO.
difsSlots	Num of CADs to estimate a clear CH.
enableCSMA	enable/disable CSMA for LoRaWAN.

◆ setDatarate()

int16_t LoRaWANNode::setDatarate ( uint8_t drUp )

Set uplink datarate. This should not be used when ADR is enabled.

Parameters

dr	Datarate to use for uplinks.

Returns: Status Codes

◆ setDeviceStatus()

void LoRaWANNode::setDeviceStatus ( uint8_t battLevel )

Set device status.

Parameters

battLevel Battery level to set. 0 for external power source, 1 for lowest battery, 254 for highest battery, 255 for unable to measure.

◆ uplink() [1/2]

int16_t LoRaWANNode::uplink	(	const char *	str,
		uint8_t	port,
		bool	isConfirmed = `false`
	)

Send a message to the server.

Parameters

str	C-string that will be transmitted.
port	Port number to send the message to.
isConfirmed	Whether to send a confirmed uplink or not.

Returns: Status Codes

◆ uplink() [2/2]

int16_t LoRaWANNode::uplink	(	uint8_t *	data,
		size_t	len,
		uint8_t	port,
		bool	isConfirmed = `false`
	)

Send a message to the server.

Parameters

data	Data to send.
len	Length of the data.
port	Port number to send the message to.
isConfirmed	Whether to send a confirmed uplink or not.

Returns: Status Codes

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

src/protocols/LoRaWAN/LoRaWAN.h
src/protocols/LoRaWAN/LoRaWAN.cpp

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ LoRaWANNode()

Member Function Documentation

◆ beginABP()

◆ beginOTAA()

◆ downlink()

◆ restore()

◆ saveSession()

◆ selectSubband() [1/2]

◆ selectSubband() [2/2]

◆ sendReceive() [1/2]

◆ sendReceive() [2/2]

◆ setADR()

◆ setCSMA()

◆ setDatarate()

◆ setDeviceStatus()

◆ uplink() [1/2]

◆ uplink() [2/2]