Derived class for Si4432 modules. More...

#include <Si4432.h>

Inheritance diagram for Si4432:

Public Member Functions
	Si4432 (Module *mod)
	Default constructor. More...

int16_t	begin (float freq=434.0, float br=4.8, float freqDev=5.0, float rxBw=181.1, int8_t power=10, uint8_t preambleLen=16)
	Initialization method. Must be called at least once from Arduino sketch to initialize the module. More...

int16_t	setFrequency (float freq) override
	Sets carrier frequency. Allowed values range from 240.0 MHz to 930.0 MHz. More...

int16_t	setOutputPower (int8_t power) override
	Sets output power. Allowed values range from -1 to 20 dBm in 3 dBm steps. More...

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

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

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

int16_t	transmit (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. More...

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. More...

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. More...

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

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

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. More...

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

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

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

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. More...

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. More...

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

int16_t	startTransmit (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. More...

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

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

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. More...

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! More...

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

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

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

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

int16_t	setPreambleLength (uint8_t preambleLen)
	Sets preamble length. More...

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

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. More...

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. More...

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. More...

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. More...

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

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

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

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

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

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

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

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

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

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. More...

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

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

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

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

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. More...

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

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. More...

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

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

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. More...

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

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

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

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

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

virtual int16_t	irqRxDoneRxTimeout (uint32_t &irqFlags, uint32_t &irqMask)
	Create the flags that make up RxDone and RxTimeout used for receiving downlinks. More...

virtual bool	isRxTimeout ()
	Check whether the IRQ bit for RxTimeout is set. More...

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

virtual int16_t	getChannelScanResult ()
	Read the channel scan result. More...

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. More...

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

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

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. More...

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

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

void	dropSync ()
	Forcefully drop synchronization.

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

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). More...

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

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

Detailed Description

Derived class for Si4432 modules.

Constructor & Destructor Documentation

◆ Si4432()

Si4432::Si4432 ( Module * mod )

Default constructor.

Parameters

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

Member Function Documentation

◆ begin()

int16_t Si4432::begin	(	float	freq = `434.0`,
		float	br = `4.8`,
		float	freqDev = `5.0`,
		float	rxBw = `181.1`,
		int8_t	power = `10`,
		uint8_t	preambleLen = `16`
	)

Initialization method. Must be called at least once from Arduino sketch to initialize the module.

Parameters

freq	Carrier frequency in MHz. Allowed values range from 240.0 MHz to 930.0 MHz.
br	Bit rate of the FSK transmission in kbps (kilobits per second). Allowed values range from 0.123 to 256.0 kbps.
freqDev	Frequency deviation of the FSK transmission in kHz. Allowed values range from 0.625 to 320.0 kbps.
rxBw	Receiver bandwidth in kHz. Allowed values range from 2.6 to 620.7 kHz.
power	Transmission output power in dBm. Allowed values range from -1 to 20 dBm in 3 dBm steps.
preambleLen	Preamble Length in bits. Defaults to 16 bits.

Returns: Status Codes

◆ setFrequency()

int16_t Si4432::setFrequency ( float freq )

overridevirtual

Sets carrier frequency. Allowed values range from 240.0 MHz to 930.0 MHz.

Parameters

freq	Carrier frequency to be set in MHz.

Returns: Status Codes

Reimplemented from PhysicalLayer.

◆ setOutputPower()

int16_t Si4432::setOutputPower ( int8_t power )

overridevirtual

Sets output power. Allowed values range from -1 to 20 dBm in 3 dBm steps.

Parameters

power Output power to be set in dBm.

Returns: Status Codes

Reimplemented from PhysicalLayer.

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

src/modules/Si443x/Si4432.h
src/modules/Si443x/Si4432.cpp

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ Si4432()

Member Function Documentation

◆ begin()

◆ setFrequency()

◆ setOutputPower()