Base class for Si443x series. All derived classes for Si443x (e.g. Si4431 or Si4432) inherit from this base class. This class should not be instantiated directly from Arduino sketch, only from its derived classes. More...

#include <Si443x.h>

Inheritance diagram for Si443x:

Public Member Functions
	Si443x (Module *mod)
	Default constructor.

int16_t	begin (float br, float freqDev, float rxBw, uint8_t preambleLen)
	Initialization method.

void	reset ()
	Reset method. Will reset the chip to the default state using SDN pin.

int16_t	transmit (const uint8_t *data, size_t len, uint8_t addr=0) override
	Binary transmit method. Will transmit arbitrary binary data up to 64 bytes long. For overloads to transmit Arduino String or C-string, see PhysicalLayer::transmit.

int16_t	receive (uint8_t *data, size_t len) override
	Binary receive method. Will attempt to receive arbitrary binary data up to 64 bytes long. For overloads to receive Arduino String, see PhysicalLayer::receive.

int16_t	sleep () override
	Sets the module to sleep to save power. Module will not be able to transmit or receive any data while in sleep mode. Module will wake up automatically when methods like transmit or receive are called.

int16_t	standby () override
	Sets the module to standby (with XTAL on).

int16_t	standby (uint8_t mode) override
	Sets the module to standby.

int16_t	transmitDirect (uint32_t frf=0) override
	Enables direct transmission mode. While in direct mode, the module will not be able to transmit or receive packets.

int16_t	receiveDirect () override
	Enables direct reception mode. While in direct mode, the module will not be able to transmit or receive packets.

int16_t	packetMode ()
	Disables direct mode and enables packet mode, allowing the module to receive packets.

void	setIrqAction (void(*func)(void))
	Sets interrupt service routine to call when IRQ activates.

void	clearIrqAction ()
	Clears interrupt service routine to call when IRQ activates.

void	setPacketReceivedAction (void(*func)(void)) override
	Sets interrupt service routine to call when a packet is received.

void	clearPacketReceivedAction () override
	Clears interrupt service routine to call when a packet is received.

void	setPacketSentAction (void(*func)(void)) override
	Sets interrupt service routine to call when a packet is sent.

void	clearPacketSentAction () override
	Clears interrupt service routine to call when a packet is sent.

int16_t	startTransmit (const uint8_t *data, size_t len, uint8_t addr=0) override
	Interrupt-driven binary transmit method. Will start transmitting arbitrary binary data up to 64 bytes long.

int16_t	finishTransmit () override
	Clean up after transmission is done.

int16_t	startReceive () override
	Interrupt-driven receive method. IRQ will be activated when full valid packet is received.

int16_t	startReceive (uint32_t timeout, uint32_t irqFlags, uint32_t irqMask, size_t len) override
	Interrupt-driven receive method, implemented for compatibility with PhysicalLayer.

int16_t	readData (uint8_t *data, size_t len) override
	Reads data that was received after calling startReceive method. When the packet length is not known in advance, getPacketLength method must be called BEFORE calling readData!

int16_t	setBitRate (float br) override
	Sets FSK bit rate. Allowed values range from 0.123 to 256.0 kbps.

int16_t	setFrequencyDeviation (float freqDev) override
	Sets FSK frequency deviation from carrier frequency. Allowed values range from 0.625 to 320.0 kHz.

int16_t	setRxBandwidth (float rxBw)
	Sets receiver bandwidth. Allowed values range from 2.6 to 620.7 kHz.

int16_t	setSyncWord (uint8_t *syncWord, size_t len) override
	Sets sync word. Up to 4 bytes can be set as sync word.

int16_t	setPreambleLength (uint8_t preambleLen)
	Sets preamble length.

size_t	getPacketLength (bool update=true) override
	Query modem for the packet length of received payload.

int16_t	setEncoding (uint8_t encoding) override
	Sets transmission encoding. Only available in FSK mode. Allowed values are RADIOLIB_ENCODING_NRZ, RADIOLIB_ENCODING_MANCHESTER and RADIOLIB_ENCODING_WHITENING.

int16_t	setDataShaping (uint8_t sh) override
	Sets Gaussian filter bandwidth-time product that will be used for data shaping. Only available in FSK mode with FSK modulation. Allowed values are RADIOLIB_SHAPING_0_5 or RADIOLIB_SHAPING_1_0. Set to RADIOLIB_SHAPING_NONE to disable data shaping.

void	setRfSwitchPins (uint32_t rxEn, uint32_t txEn)
	Some modules contain external RF switch controlled by pins. This function gives RadioLib control over those pins to automatically switch between various modes: When idle both pins will be LOW, during TX the `txEn` pin will be HIGH, during RX the `rxPin` will be HIGH.

void	setRfSwitchTable (const uint32_t(&pins)[Module::RFSWITCH_MAX_PINS], const Module::RfSwitchMode_t table[])
	Some modules contain external RF switch controlled by pins. This function gives RadioLib control over those pins to automatically switch between various modes.

uint8_t	randomByte () override
	Get one truly random byte from RSSI noise.

int16_t	getChipVersion ()
	Read version SPI register. Should return RADIOLIB_SI443X_DEVICE_VERSION (0x06) if Si443x is connected and working.

void	setDirectAction (void(*func)(void)) override
	Set interrupt service routine function to call when data bit is received in direct mode.

void	readBit (uint32_t pin) override
	Function to read and process data bit in direct reception mode.

int16_t	fixedPacketLengthMode (uint8_t len=RADIOLIB_SI443X_MAX_PACKET_LENGTH)
	Set modem in fixed packet length mode.

int16_t	variablePacketLengthMode (uint8_t maxLen=RADIOLIB_SI443X_MAX_PACKET_LENGTH)
	Set modem in variable packet length mode.

int16_t	transmit (const char *str, uint8_t addr=0)
	C-string transmit method.

virtual int16_t	transmit (const uint8_t *data, size_t len, uint8_t addr=0)
	Binary transmit method. Must be implemented in module class.

virtual int16_t	receive (uint8_t *data, size_t len)
	Binary receive method. Must be implemented in module class.

int16_t	startTransmit (const char *str, uint8_t addr=0)
	Interrupt-driven Arduino String transmit method. Unlike the standard transmit method, this one is non-blocking. Interrupt pin will be activated when transmission finishes.

virtual int16_t	startTransmit (const uint8_t *data, size_t len, uint8_t addr=0)
	Interrupt-driven binary transmit method.

virtual int16_t	readData (uint8_t *data, size_t len)
	Reads data that was received after calling startReceive method.

Public Member Functions inherited from PhysicalLayer
	PhysicalLayer (float step, size_t maxLen)
	Default constructor.

int16_t	transmit (const char *str, uint8_t addr=0)
	C-string transmit method.

int16_t	startTransmit (const char *str, uint8_t addr=0)
	Interrupt-driven Arduino String transmit method. Unlike the standard transmit method, this one is non-blocking. Interrupt pin will be activated when transmission finishes.

virtual int16_t	setFrequency (float freq)
	Sets carrier frequency. Must be implemented in module class.

virtual int16_t	invertIQ (bool enable)
	Set IQ inversion. Must be implemented in module class if the module supports it.

virtual int16_t	setOutputPower (int8_t power)
	Set output power. Must be implemented in module class if the module supports it.

virtual int16_t	checkOutputPower (int8_t power, int8_t *clipped)
	Check if output power is configurable. Must be implemented in module class if the module supports it.

virtual int16_t	setPreambleLength (size_t len)
	Set preamble length. Must be implemented in module class if the module supports it.

virtual int16_t	setDataRate (DataRate_t dr)
	Set data. Must be implemented in module class if the module supports it.

virtual int16_t	checkDataRate (DataRate_t dr)
	Check the data rate can be configured by this module. Must be implemented in module class if the module supports it.

float	getFreqStep () const
	Gets the module frequency step size that was set in constructor.

virtual float	getRSSI ()
	Gets RSSI (Recorded Signal Strength Indicator) of the last received packet.

virtual float	getSNR ()
	Gets SNR (Signal to Noise Ratio) of the last received packet. Only available for LoRa modem.

virtual RadioLibTime_t	getTimeOnAir (size_t len)
	Get expected time-on-air for a given size of payload.

virtual RadioLibTime_t	calculateRxTimeout (RadioLibTime_t timeoutUs)
	Calculate the timeout value for this specific module / series (in number of symbols or units of time).

uint32_t	getIrqMapped (RadioLibIrqFlags_t irq)
	Convert from radio-agnostic IRQ flags to radio-specific flags.

int16_t	checkIrq (RadioLibIrqType_t irq)
	Check whether a specific IRQ bit is set (e.g. RxTimeout, CadDone).

int16_t	setIrq (RadioLibIrqFlags_t irq)
	Set interrupt on specific IRQ bit(s) (e.g. RxTimeout, CadDone). Keep in mind that not all radio modules support all RADIOLIB_IRQ_ flags!

int16_t	clearIrq (RadioLibIrqFlags_t irq)
	Clear interrupt on a specific IRQ bit (e.g. RxTimeout, CadDone). Keep in mind that not all radio modules support all RADIOLIB_IRQ_ flags!

virtual uint32_t	getIrqFlags ()
	Read currently active IRQ flags. Must be implemented in module class.

virtual int16_t	setIrqFlags (uint32_t irq)
	Set interrupt on DIO1 to be sent on a specific IRQ bit (e.g. RxTimeout, CadDone). Must be implemented in module class.

virtual int16_t	clearIrqFlags (uint32_t irq)
	Clear interrupt on a specific IRQ bit (e.g. RxTimeout, CadDone). Must be implemented in module class.

virtual int16_t	startChannelScan ()
	Interrupt-driven channel activity detection method. Interrupt will be activated when packet is detected. Must be implemented in module class.

virtual int16_t	startChannelScan (const ChannelScanConfig_t &config)
	Interrupt-driven channel activity detection method. interrupt will be activated when packet is detected. Must be implemented in module class.

virtual int16_t	getChannelScanResult ()
	Read the channel scan result.

virtual int16_t	scanChannel ()
	Check whether the current communication channel is free or occupied. Performs CAD for LoRa modules, or RSSI measurement for FSK modules.

virtual int16_t	scanChannel (const ChannelScanConfig_t &config)
	Check whether the current communication channel is free or occupied. Performs CAD for LoRa modules, or RSSI measurement for FSK modules.

int32_t	random (int32_t max)
	Get truly random number in range 0 - max.

int32_t	random (int32_t min, int32_t max)
	Get truly random number in range min - max.

int16_t	startDirect ()
	Configure module parameters for direct modes. Must be called prior to "ham" modes like RTTY or AX.25. Only available in FSK mode.

int16_t	setDirectSyncWord (uint32_t syncWord, uint8_t len)
	Set sync word to be used to determine start of packet in direct reception mode.

int16_t	available ()
	Get the number of direct mode bytes currently available in buffer.

void	dropSync ()
	Forcefully drop synchronization.

uint8_t	read (bool drop=true)
	Get data from direct mode buffer.

virtual int16_t	setDIOMapping (uint32_t pin, uint32_t value)
	Configure DIO pin mapping to get a given signal on a DIO pin (if available).

virtual void	setChannelScanAction (void(*func)(void))
	Sets interrupt service routine to call when a channel scan is finished.

virtual void	clearChannelScanAction ()
	Clears interrupt service routine to call when a channel scan is finished.

virtual int16_t	setModem (ModemType_t modem)
	Set modem for the radio to use. Will perform full reset and reconfigure the radio using its default parameters.

virtual int16_t	getModem (ModemType_t *modem)
	Get modem currently in use by the radio.

Detailed Description

Base class for Si443x series. All derived classes for Si443x (e.g. Si4431 or Si4432) inherit from this base class. This class should not be instantiated directly from Arduino sketch, only from its derived classes.

Constructor & Destructor Documentation

◆ Si443x()

Si443x::Si443x ( Module * mod )

explicit

Default constructor.

Parameters

mod	Instance of Module that will be used to communicate with the radio.

Member Function Documentation

◆ begin()

int16_t Si443x::begin	(	float	br,
		float	freqDev,
		float	rxBw,
		uint8_t	preambleLen
	)

Initialization method.

Parameters

br	Bit rate of the FSK transmission in kbps (kilobits per second).
freqDev	Frequency deviation of the FSK transmission in kHz.
rxBw	Receiver bandwidth in kHz.
preambleLen	Preamble Length in bits.

Returns: Status Codes

◆ clearPacketReceivedAction()

void Si443x::clearPacketReceivedAction ( )

overridevirtual

Clears interrupt service routine to call when a packet is received.

Reimplemented from PhysicalLayer.

◆ clearPacketSentAction()

void Si443x::clearPacketSentAction ( )

overridevirtual

Clears interrupt service routine to call when a packet is sent.

Reimplemented from PhysicalLayer.

◆ finishTransmit()

int16_t Si443x::finishTransmit ( )

overridevirtual

Clean up after transmission is done.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ fixedPacketLengthMode()

int16_t Si443x::fixedPacketLengthMode ( uint8_t len = RADIOLIB_SI443X_MAX_PACKET_LENGTH )

Set modem in fixed packet length mode.

Parameters

len	Packet length.

Returns: Status Codes

◆ getChipVersion()

int16_t Si443x::getChipVersion ( )

Read version SPI register. Should return RADIOLIB_SI443X_DEVICE_VERSION (0x06) if Si443x is connected and working.

Returns: Version register contents or Status Codes

◆ getPacketLength()

size_t Si443x::getPacketLength ( bool update = true )

overridevirtual

Query modem for the packet length of received payload.

Parameters

update Update received packet length. Will return cached value when set to false.

Returns: Length of last received packet in bytes.

Reimplemented from PhysicalLayer.

◆ packetMode()

int16_t Si443x::packetMode ( )

Disables direct mode and enables packet mode, allowing the module to receive packets.

Returns: Status Codes

◆ randomByte()

uint8_t Si443x::randomByte ( )

overridevirtual

Get one truly random byte from RSSI noise.

Returns: TRNG byte.

Reimplemented from PhysicalLayer.

◆ readBit()

void Si443x::readBit ( uint32_t pin )

overridevirtual

Function to read and process data bit in direct reception mode.

Parameters

pin	Pin on which to read.

Reimplemented from PhysicalLayer.

◆ readData() [1/2]

int16_t PhysicalLayer::readData	(	uint8_t *	data,
		size_t	len
	)

virtual

Reads data that was received after calling startReceive method.

Parameters

data	Pointer to array to save the received binary data.
len	Number of bytes that will be read. When set to 0, the packet length will be retrieved automatically. When more bytes than received are requested, only the number of bytes requested will be returned.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ readData() [2/2]

int16_t Si443x::readData	(	uint8_t *	data,
		size_t	len
	)

overridevirtual

Reads data that was received after calling startReceive method. When the packet length is not known in advance, getPacketLength method must be called BEFORE calling readData!

Parameters

data	Pointer to array to save the received binary data.
len	Number of bytes that will be read. When set to 0, the packet length will be retrieved automatically. When more bytes than received are requested, only the number of bytes requested will be returned.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ receive() [1/2]

int16_t PhysicalLayer::receive	(	uint8_t *	data,
		size_t	len
	)

virtual

Binary receive method. Must be implemented in module class.

Parameters

data	Pointer to array to save the received binary data.
len	Packet length, needed for some modules under special circumstances (e.g. LoRa implicit header mode).

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ receive() [2/2]

int16_t Si443x::receive	(	uint8_t *	data,
		size_t	len
	)

overridevirtual

Binary receive method. Will attempt to receive arbitrary binary data up to 64 bytes long. For overloads to receive Arduino String, see PhysicalLayer::receive.

Parameters

data	Pointer to array to save the received binary data.
len	Number of bytes that will be received. Must be known in advance for binary transmissions.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ receiveDirect()

int16_t Si443x::receiveDirect ( )

overridevirtual

Enables direct reception mode. While in direct mode, the module will not be able to transmit or receive packets.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ setBitRate()

int16_t Si443x::setBitRate ( float br )

overridevirtual

Sets FSK bit rate. Allowed values range from 0.123 to 256.0 kbps.

Parameters

br	Bit rate to be set (in kbps).

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ setDataShaping()

int16_t Si443x::setDataShaping ( uint8_t sh )

overridevirtual

Sets Gaussian filter bandwidth-time product that will be used for data shaping. Only available in FSK mode with FSK modulation. Allowed values are RADIOLIB_SHAPING_0_5 or RADIOLIB_SHAPING_1_0. Set to RADIOLIB_SHAPING_NONE to disable data shaping.

Parameters

sh	Gaussian shaping bandwidth-time product that will be used for data shaping

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ setDirectAction()

void Si443x::setDirectAction ( void(*)(void) func )

overridevirtual

Set interrupt service routine function to call when data bit is received in direct mode.

Parameters

func	Pointer to interrupt service routine.

Reimplemented from PhysicalLayer.

◆ setEncoding()

int16_t Si443x::setEncoding ( uint8_t encoding )

overridevirtual

Sets transmission encoding. Only available in FSK mode. Allowed values are RADIOLIB_ENCODING_NRZ, RADIOLIB_ENCODING_MANCHESTER and RADIOLIB_ENCODING_WHITENING.

Parameters

encoding Encoding to be used.

Returns: Status Codes

Todo:

add inverted Manchester?

Reimplemented from PhysicalLayer.

◆ setFrequencyDeviation()

int16_t Si443x::setFrequencyDeviation ( float freqDev )

overridevirtual

Sets FSK frequency deviation from carrier frequency. Allowed values range from 0.625 to 320.0 kHz.

Parameters

freqDev Frequency deviation to be set (in kHz).

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ setIrqAction()

void Si443x::setIrqAction ( void(*)(void) func )

Sets interrupt service routine to call when IRQ activates.

Parameters

func	ISR to call.

◆ setPacketReceivedAction()

void Si443x::setPacketReceivedAction ( void(*)(void) func )

overridevirtual

Sets interrupt service routine to call when a packet is received.

Parameters

func	ISR to call.

Reimplemented from PhysicalLayer.

◆ setPacketSentAction()

void Si443x::setPacketSentAction ( void(*)(void) func )

overridevirtual

Sets interrupt service routine to call when a packet is sent.

Parameters

func	ISR to call.

Reimplemented from PhysicalLayer.

◆ setPreambleLength()

int16_t Si443x::setPreambleLength ( uint8_t preambleLen )

Sets preamble length.

Parameters

preambleLen Preamble length to be set (in bits).

Returns: Status Codes

◆ setRfSwitchPins()

void Si443x::setRfSwitchPins	(	uint32_t	rxEn,
		uint32_t	txEn
	)

Some modules contain external RF switch controlled by pins. This function gives RadioLib control over those pins to automatically switch between various modes: When idle both pins will be LOW, during TX the txEn pin will be HIGH, during RX the rxPin will be HIGH.

Radiolib will automatically set the pin mode and value of these pins, so do not control them from the sketch.

When more than two pins or more control over the output values are needed, use the setRfSwitchTable() function.

Parameters

rxEn	RX enable pin.
txEn	TX enable pin.

◆ setRfSwitchTable()

void Si443x::setRfSwitchTable	(	const uint32_t(&)	pins[Module::RFSWITCH_MAX_PINS],
		const Module::RfSwitchMode_t	table[]
	)

Some modules contain external RF switch controlled by pins. This function gives RadioLib control over those pins to automatically switch between various modes.

Radiolib will automatically set the pin mode and value of these pins, so do not control them from the sketch.

Parameters

pins	A reference to an array of pins to control. This should always be an array of 3 elements. If you need less pins, use RADIOLIB_NC for the unused elements.
table	A reference to an array of pin values to use for each supported mode. Each element is an RfSwitchMode_T struct that lists the mode for which it applies and the values for each of the pins passed in the pins argument respectively.

The pins array will be copied into the Module object, so the original array can be deallocated after this call. However, a reference to the table array will be stored, so that array must remain valid as long RadioLib is being used.

The mode field in each table row should normally use any of the MODE_* constants from the Module::OpMode_t enum. However, some radios support additional modes and will define their own OpMode_t enum.

The length of the table is variable (to support radios that add additional modes), so the table must always be terminated with the special END_OF_MODE_TABLE value.

Normally all modes should be listed in the table, but for some radios, modes can be omitted to indicate they are not supported (e.g. when a radio has a high power and low power TX mode but external circuitry only supports low power). If applicable, this is documented in the radio class itself.

Example

For example, on a board that has an RF switch with an enable pin connected to PA0 and a TX/RX select pin connected to PA1:

// In global scope, define the pin array and mode table
static const uint32_t rfswitch_pins[] =
                       {PA0,  PA1,  RADIOLIB_NC};
static const Module::RfSwitchMode_t rfswitch_table[] = {
  {Module::MODE_IDLE,  {LOW,  LOW}},
  {Module::MODE_RX,    {HIGH, LOW}},
  {Module::MODE_TX,    {HIGH, HIGH}},
   Module::END_OF_MODE_TABLE,
};
 
void setup() {
  ...
  // Then somewhere in setup, pass them to radiolib
  radio.setRfSwitchTable(rfswitch_pins, rfswitch_table);
  ...
}

◆ setRxBandwidth()

int16_t Si443x::setRxBandwidth ( float rxBw )

Sets receiver bandwidth. Allowed values range from 2.6 to 620.7 kHz.

Parameters

rxBw	Receiver bandwidth to be set in kHz.

Returns: Status Codes

Todo:: float tolerance equality as macro?

◆ setSyncWord()

int16_t Si443x::setSyncWord	(	uint8_t *	syncWord,
		size_t	len
	)

overridevirtual

Sets sync word. Up to 4 bytes can be set as sync word.

Parameters

syncWord	Pointer to the array of sync word bytes.
len	Sync word length in bytes.

Reimplemented from PhysicalLayer.

◆ sleep()

int16_t Si443x::sleep ( )

overridevirtual

Sets the module to sleep to save power. Module will not be able to transmit or receive any data while in sleep mode. Module will wake up automatically when methods like transmit or receive are called.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ standby() [1/2]

int16_t Si443x::standby ( )

overridevirtual

Sets the module to standby (with XTAL on).

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ standby() [2/2]

int16_t Si443x::standby ( uint8_t mode )

overridevirtual

Sets the module to standby.

Parameters

mode	Standby mode to be used.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ startReceive() [1/2]

int16_t Si443x::startReceive ( )

overridevirtual

Interrupt-driven receive method. IRQ will be activated when full valid packet is received.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ startReceive() [2/2]

int16_t Si443x::startReceive	(	uint32_t	timeout,
		uint32_t	irqFlags,
		uint32_t	irqMask,
		size_t	len
	)

overridevirtual

Interrupt-driven receive method, implemented for compatibility with PhysicalLayer.

Parameters

timeout	Ignored.
irqFlags	Ignored.
irqMask	Ignored.
len	Ignored.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ startTransmit() [1/3]

int16_t PhysicalLayer::startTransmit	(	const char *	str,
		uint8_t	addr = `0`
	)

Interrupt-driven Arduino String transmit method. Unlike the standard transmit method, this one is non-blocking. Interrupt pin will be activated when transmission finishes.

Parameters

str	C-string that will be transmitted.
addr	Node address to transmit the packet to. Only used in FSK mode.

Returns: Status Codes

◆ startTransmit() [2/3]

int16_t PhysicalLayer::startTransmit	(	const uint8_t *	data,
		size_t	len,
		uint8_t	addr = `0`
	)

virtual

Interrupt-driven binary transmit method.

Parameters

data	Binary data that will be transmitted.
len	Length of binary data to transmit (in bytes).
addr	Node address to transmit the packet to. Only used in FSK mode.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ startTransmit() [3/3]

int16_t Si443x::startTransmit	(	const uint8_t *	data,
		size_t	len,
		uint8_t	addr = `0`
	)

overridevirtual

Interrupt-driven binary transmit method. Will start transmitting arbitrary binary data up to 64 bytes long.

Parameters

data	Binary data that will be transmitted.
len	Length of binary data to transmit (in bytes).
addr	Node address to transmit the packet to.

Returns: Status Codes

Todo:: use header as address field?

Reimplemented from PhysicalLayer.

◆ transmit() [1/3]

int16_t PhysicalLayer::transmit	(	const char *	str,
		uint8_t	addr = `0`
	)

C-string transmit method.

Parameters

str	C-string that will be transmitted.
addr	Node address to transmit the packet to. Only used in FSK mode.

Returns: Status Codes

◆ transmit() [2/3]

int16_t PhysicalLayer::transmit	(	const uint8_t *	data,
		size_t	len,
		uint8_t	addr = `0`
	)

virtual

Binary transmit method. Must be implemented in module class.

Parameters

data	Binary data that will be transmitted.
len	Length of binary data to transmit (in bytes).
addr	Node address to transmit the packet to. Only used in FSK mode.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ transmit() [3/3]

int16_t Si443x::transmit	(	const uint8_t *	data,
		size_t	len,
		uint8_t	addr = `0`
	)

overridevirtual

Binary transmit method. Will transmit arbitrary binary data up to 64 bytes long. For overloads to transmit Arduino String or C-string, see PhysicalLayer::transmit.

Parameters

data	Binary data that will be transmitted.
len	Length of binary data to transmit (in bytes).
addr	Node address to transmit the packet to.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ transmitDirect()

int16_t Si443x::transmitDirect ( uint32_t frf = 0 )

overridevirtual

Enables direct transmission mode. While in direct mode, the module will not be able to transmit or receive packets.

Parameters

frf	24-bit raw frequency value to start transmitting at. Required for quick frequency shifts in RTTY.

Returns: Status Codes

Todo:: integers only

Reimplemented from PhysicalLayer.

◆ variablePacketLengthMode()

int16_t Si443x::variablePacketLengthMode ( uint8_t maxLen = RADIOLIB_SI443X_MAX_PACKET_LENGTH )

Set modem in variable packet length mode.

Parameters

maxLen Maximum packet length.

Returns: Status Codes

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

src/modules/Si443x/Si443x.h
src/modules/Si443x/Si443x.cpp

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ Si443x()

Member Function Documentation

◆ begin()

◆ clearPacketReceivedAction()

◆ clearPacketSentAction()

◆ finishTransmit()

◆ fixedPacketLengthMode()

◆ getChipVersion()

◆ getPacketLength()

◆ packetMode()

◆ randomByte()

◆ readBit()

◆ readData() [1/2]

◆ readData() [2/2]

◆ receive() [1/2]

◆ receive() [2/2]

◆ receiveDirect()

◆ setBitRate()

◆ setDataShaping()

◆ setDirectAction()

◆ setEncoding()

◆ setFrequencyDeviation()

◆ setIrqAction()

◆ setPacketReceivedAction()

◆ setPacketSentAction()

◆ setPreambleLength()

◆ setRfSwitchPins()

◆ setRfSwitchTable()

Example

◆ setRxBandwidth()

◆ setSyncWord()

◆ sleep()

◆ standby() [1/2]

◆ standby() [2/2]

◆ startReceive() [1/2]

◆ startReceive() [2/2]

◆ startTransmit() [1/3]

◆ startTransmit() [2/3]

◆ startTransmit() [3/3]

◆ transmit() [1/3]

◆ transmit() [2/3]

◆ transmit() [3/3]

◆ transmitDirect()

◆ variablePacketLengthMode()