RadioLib
Universal wireless communication library for Arduino
SX1261 Class Reference

Derived class for SX1261 modules. More...

#include <SX1261.h>

Inheritance diagram for SX1261:
SX1262 SX126x PhysicalLayer

Public Member Functions

 SX1261 (Module *mod)
 Default constructor. More...
 
int16_t setOutputPower (int8_t power) override
 Sets output power. Allowed values are in range from -17 to 15 dBm. More...
 
int16_t checkOutputPower (int8_t power, int8_t *clipped) override
 Check if output power is configurable. More...
 
- Public Member Functions inherited from SX1262
 SX1262 (Module *mod)
 Default constructor. More...
 
int16_t begin (float freq=434.0, float bw=125.0, uint8_t sf=9, uint8_t cr=7, uint8_t syncWord=RADIOLIB_SX126X_SYNC_WORD_PRIVATE, int8_t power=10, uint16_t preambleLength=8, float tcxoVoltage=1.6, bool useRegulatorLDO=false)
 Initialization method for LoRa modem. More...
 
int16_t beginFSK (float freq=434.0, float br=4.8, float freqDev=5.0, float rxBw=156.2, int8_t power=10, uint16_t preambleLength=16, float tcxoVoltage=1.6, bool useRegulatorLDO=false)
 Initialization method for FSK modem. More...
 
int16_t beginLRFHSS (float freq=434.0, uint8_t bw=RADIOLIB_SX126X_LR_FHSS_BW_722_66, uint8_t cr=RADIOLIB_SX126X_LR_FHSS_CR_2_3, bool narrowGrid=true, int8_t power=10, float tcxoVoltage=1.6, bool useRegulatorLDO=false)
 Initialization method for LR-FHSS modem. This modem only supports transmission! More...
 
int16_t setFrequency (float freq) override
 Sets carrier frequency. Allowed values are in range from 150.0 to 960.0 MHz. Will automatically perform image calibration if the frequency changes by more than RADIOLIB_SX126X_CAL_IMG_FREQ_TRIG MHz. More...
 
int16_t setFrequency (float freq, bool skipCalibration)
 Sets carrier frequency. Allowed values are in range from 150.0 to 960.0 MHz. Will automatically perform image calibration if the frequency changes by more than RADIOLIB_SX126X_CAL_IMG_FREQ_TRIG_MHZ. More...
 
int16_t checkOutputPower (int8_t power, int8_t *clipped) override
 Check if output power is configurable. More...
 
int16_t setModem (ModemType_t modem) override
 Set modem for the radio to use. Will perform full reset and reconfigure the radio using its default parameters. More...
 
- Public Member Functions inherited from SX126x
 SX126x (Module *mod)
 Default constructor. More...
 
int16_t begin (uint8_t cr, uint8_t syncWord, uint16_t preambleLength, float tcxoVoltage, bool useRegulatorLDO=false)
 Initialization method for LoRa modem. More...
 
int16_t beginFSK (float br, float freqDev, float rxBw, uint16_t preambleLength, float tcxoVoltage, bool useRegulatorLDO=false)
 Initialization method for FSK modem. More...
 
int16_t beginLRFHSS (uint8_t bw, uint8_t cr, bool narrowGrid, float tcxoVoltage, bool useRegulatorLDO=false)
 Initialization method for LR-FHSS modem. This modem only supports transmission! More...
 
int16_t setLrFhssConfig (uint8_t bw, uint8_t cr, uint8_t hdrCount=3, uint16_t hopSeqId=0x100)
 Sets LR-FHSS configuration. More...
 
int16_t reset (bool verify=true)
 Reset method. Will reset the chip to the default state using RST pin. More...
 
int16_t transmit (const uint8_t *data, size_t len, uint8_t addr=0) override
 Blocking binary transmit method. Overloads for string-based transmissions are implemented in PhysicalLayer. More...
 
int16_t receive (uint8_t *data, size_t len) override
 Blocking binary receive method. Overloads for string-based transmissions are implemented in PhysicalLayer. More...
 
int16_t transmitDirect (uint32_t frf=0) override
 Starts direct mode transmission. More...
 
int16_t receiveDirect () override
 Starts direct mode reception. Only implemented for PhysicalLayer compatibility, as SX126x series does not support direct mode reception. Will always return RADIOLIB_ERR_UNKNOWN. More...
 
int16_t scanChannel () override
 Performs scan for LoRa transmission in the current channel. Detects both preamble and payload. Configuration defaults to the values recommended by AN1200.48. More...
 
int16_t scanChannel (const ChannelScanConfig_t &config) override
 Performs scan for LoRa transmission in the current channel. Detects both preamble and payload. More...
 
int16_t sleep () override
 Sets the module to sleep mode. To wake the device up, call standby(). Overload with warm start enabled for PhysicalLayer compatibility. More...
 
int16_t sleep (bool retainConfig)
 Sets the module to sleep mode. To wake the device up, call standby(). More...
 
int16_t standby () override
 Sets the module to standby mode (overload for PhysicalLayer compatibility, uses 13 MHz RC oscillator). More...
 
int16_t standby (uint8_t mode, bool wakeup=true)
 Sets the module to standby mode. More...
 
void setDio1Action (void(*func)(void))
 Sets interrupt service routine to call when DIO1 activates. More...
 
void clearDio1Action ()
 Clears interrupt service routine to call when DIO1 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.
 
void setChannelScanAction (void(*func)(void)) override
 Sets interrupt service routine to call when a channel scan is finished. More...
 
void clearChannelScanAction () override
 Clears interrupt service routine to call when a channel scan is finished.
 
int16_t startTransmit (const uint8_t *data, size_t len, uint8_t addr=0) override
 Interrupt-driven binary transmit method. Overloads for string-based transmissions are implemented in PhysicalLayer. More...
 
int16_t finishTransmit () override
 Clean up after transmission is done. More...
 
int16_t startReceive () override
 Interrupt-driven receive method with default parameters. Implemented for compatibility with PhysicalLayer. More...
 
int16_t startReceive (uint32_t timeout, RadioLibIrqFlags_t irqFlags=RADIOLIB_IRQ_RX_DEFAULT_FLAGS, RadioLibIrqFlags_t irqMask=RADIOLIB_IRQ_RX_DEFAULT_MASK, size_t len=0)
 Interrupt-driven receive method. DIO1 will be activated when full packet is received. More...
 
int16_t startReceiveDutyCycle (uint32_t rxPeriod, uint32_t sleepPeriod, RadioLibIrqFlags_t irqFlags=RADIOLIB_IRQ_RX_DEFAULT_FLAGS, RadioLibIrqFlags_t irqMask=RADIOLIB_IRQ_RX_DEFAULT_MASK)
 Interrupt-driven receive method where the device mostly sleeps and periodically wakes to listen. Note that this function assumes the unit will take 500us + TCXO_delay to change state. See datasheet section 13.1.7, version 1.2. More...
 
int16_t startReceiveDutyCycleAuto (uint16_t senderPreambleLength=0, uint16_t minSymbols=8, RadioLibIrqFlags_t irqFlags=RADIOLIB_IRQ_RX_DEFAULT_FLAGS, RadioLibIrqFlags_t irqMask=RADIOLIB_IRQ_RX_DEFAULT_MASK)
 Calls startReceiveDutyCycle with rxPeriod and sleepPeriod set so the unit shouldn't miss any messages. More...
 
int16_t readData (uint8_t *data, size_t len) override
 Reads data 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 startChannelScan () override
 Interrupt-driven channel activity detection method. DIO1 will be activated when LoRa preamble is detected, or upon timeout. Defaults to CAD parameter values recommended by AN1200.48. More...
 
int16_t startChannelScan (const ChannelScanConfig_t &config) override
 Interrupt-driven channel activity detection method. DIO1 will be activated when LoRa preamble is detected, or upon timeout. More...
 
int16_t getChannelScanResult () override
 Read the channel scan result. More...
 
int16_t setBandwidth (float bw)
 Sets LoRa bandwidth. Allowed values are 7.8, 10.4, 15.6, 20.8, 31.25, 41.7, 62.5, 125.0, 250.0 and 500.0 kHz. More...
 
int16_t setSpreadingFactor (uint8_t sf)
 Sets LoRa spreading factor. Allowed values range from 5 to 12. More...
 
int16_t setCodingRate (uint8_t cr)
 Sets LoRa coding rate denominator. Allowed values range from 5 to 8. More...
 
int16_t setSyncWord (uint8_t syncWord, uint8_t controlBits=0x44)
 Sets LoRa sync word. More...
 
int16_t setCurrentLimit (float currentLimit)
 Sets current protection limit. Can be set in 2.5 mA steps. More...
 
float getCurrentLimit ()
 Reads current protection limit. More...
 
int16_t setPreambleLength (size_t preambleLength) override
 Sets preamble length for LoRa or FSK modem. Allowed values range from 1 to 65535. More...
 
int16_t setFrequencyDeviation (float freqDev) override
 Sets FSK frequency deviation. Allowed values range from 0.0 to 200.0 kHz. More...
 
int16_t setBitRate (float br) override
 Sets FSK bit rate. Allowed values range from 0.6 to 300.0 kbps. More...
 
int16_t setDataRate (DataRate_t dr) override
 Set data. More...
 
int16_t checkDataRate (DataRate_t dr) override
 Check the data rate can be configured by this module. More...
 
int16_t setRxBandwidth (float rxBw)
 Sets FSK receiver bandwidth. Allowed values are 4.8, 5.8, 7.3, 9.7, 11.7, 14.6, 19.5, 23.4, 29.3, 39.0, 46.9, 58.6, 78.2, 93.8, 117.3, 156.2, 187.2, 234.3, 312.0, 373.6 and 467.0 kHz. More...
 
int16_t setRxBoostedGainMode (bool rxbgm, bool persist=true)
 Enables or disables Rx Boosted Gain mode as described in SX126x datasheet section 9.6 (SX1261/2 v2.1, SX1268 v1.1) More...
 
int16_t setDataShaping (uint8_t sh) override
 Sets time-bandwidth product of Gaussian filter applied for shaping. Allowed values are RADIOLIB_SHAPING_0_3, RADIOLIB_SHAPING_0_5, RADIOLIB_SHAPING_0_7 or RADIOLIB_SHAPING_1_0. Set to RADIOLIB_SHAPING_NONE to disable data shaping. More...
 
int16_t setSyncWord (uint8_t *syncWord, size_t len) override
 Sets FSK sync word in the form of array of up to 8 bytes. Can also set LR-FHSS sync word, but its length must be 4 bytes. More...
 
int16_t setSyncBits (uint8_t *syncWord, uint8_t bitsLen)
 Sets FSK sync word in the form of array of up to 8 bytes. More...
 
int16_t setNodeAddress (uint8_t addr)
 Sets node address. Calling this method will also enable address filtering for node address only. More...
 
int16_t setBroadcastAddress (uint8_t broadAddr)
 Sets broadcast address. Calling this method will also enable address filtering for node and broadcast address. More...
 
int16_t disableAddressFiltering ()
 Disables address filtering. Calling this method will also erase previously set addresses. More...
 
int16_t setCRC (uint8_t len, uint16_t initial=0x1D0F, uint16_t polynomial=0x1021, bool inverted=true)
 Sets CRC configuration. More...
 
int16_t setWhitening (bool enabled, uint16_t initial=0x01FF)
 Sets FSK whitening parameters. More...
 
int16_t setTCXO (float voltage, uint32_t delay=5000)
 Sets TCXO (Temperature Compensated Crystal Oscillator) configuration. More...
 
int16_t setDio2AsRfSwitch (bool enable=true)
 Set DIO2 to function as RF switch (default in Semtech example designs). More...
 
float getDataRate () const
 Gets effective data rate for the last transmitted packet. The value is calculated only for payload bytes. More...
 
float getRSSI () override
 Gets recorded signal strength indicator. Overload with packet mode enabled for PhysicalLayer compatibility. More...
 
float getRSSI (bool packet)
 Gets RSSI (Recorded Signal Strength Indicator). More...
 
float getSNR () override
 Gets SNR (Signal to Noise Ratio) of the last received packet. Only available for LoRa modem. More...
 
float getFrequencyError ()
 Gets frequency error of the latest received packet. WARNING: This functionality is based on SX128x implementation and not documented on SX126x. While it seems to be working, it should be used with caution! More...
 
size_t getPacketLength (bool update=true) override
 Query modem for the packet length of received payload. More...
 
size_t getPacketLength (bool update, uint8_t *offset)
 Query modem for the packet length of received payload and Rx buffer offset. More...
 
int16_t fixedPacketLengthMode (uint8_t len=RADIOLIB_SX126X_MAX_PACKET_LENGTH)
 Set modem in fixed packet length mode. Available in FSK mode only. More...
 
int16_t variablePacketLengthMode (uint8_t maxLen=RADIOLIB_SX126X_MAX_PACKET_LENGTH)
 Set modem in variable packet length mode. Available in FSK mode only. More...
 
RadioLibTime_t getTimeOnAir (size_t len) override
 Get expected time-on-air for a given size of payload. More...
 
RadioLibTime_t calculateRxTimeout (RadioLibTime_t timeoutUs) override
 Calculate the timeout value for this specific module / series (in number of symbols or units of time) More...
 
uint32_t getIrqFlags () override
 Read currently active IRQ flags. More...
 
int16_t setIrqFlags (uint32_t irq) override
 Set interrupt on DIO1 to be sent on a specific IRQ bit (e.g. RxTimeout, CadDone). More...
 
int16_t clearIrqFlags (uint32_t irq) override
 Clear interrupt on a specific IRQ bit (e.g. RxTimeout, CadDone). More...
 
int16_t implicitHeader (size_t len)
 Set implicit header mode for future reception/transmission. More...
 
int16_t explicitHeader ()
 Set explicit header mode for future reception/transmission. More...
 
int16_t setRegulatorLDO ()
 Set regulator mode to LDO. More...
 
int16_t setRegulatorDCDC ()
 Set regulator mode to DC-DC. More...
 
int16_t setEncoding (uint8_t encoding) override
 Sets transmission encoding. Available in FSK mode only. Serves only as alias for PhysicalLayer compatibility. 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...
 
int16_t forceLDRO (bool enable)
 Forces LoRa low data rate optimization. Only available in LoRa mode. After calling this method, LDRO will always be set to the provided value, regardless of symbol length. To re-enable automatic LDRO configuration, call SX126x::autoLDRO() More...
 
int16_t autoLDRO ()
 Re-enables automatic LDRO configuration. Only available in LoRa mode. After calling this method, LDRO will be enabled automatically when symbol length exceeds 16 ms. More...
 
uint8_t randomByte () override
 Get one truly random byte from RSSI noise. More...
 
int16_t invertIQ (bool enable) override
 Enable/disable inversion of the I and Q signals. More...
 
int16_t getModem (ModemType_t *modem) override
 Get modem currently in use by the radio. 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 uploadPatch (const uint32_t *patch, size_t len, bool nonvolatile=true)
 Upload binary patch into the SX126x device RAM. Patch is needed to e.g., enable spectral scan and must be uploaded again on every power cycle. More...
 
int16_t spectralScanStart (uint16_t numSamples, uint8_t window=RADIOLIB_SX126X_SPECTRAL_SCAN_WINDOW_DEFAULT, uint8_t interval=RADIOLIB_SX126X_SCAN_INTERVAL_8_20_US)
 Start spectral scan. Requires binary path to be uploaded. More...
 
void spectralScanAbort ()
 Abort an ongoing spectral scan.
 
int16_t spectralScanGetStatus ()
 Read the status of spectral scan. More...
 
int16_t spectralScanGetResult (uint16_t *results)
 Read the result of spectral scan. More...
 
int16_t setPaConfig (uint8_t paDutyCycle, uint8_t deviceSel, uint8_t hpMax=RADIOLIB_SX126X_PA_CONFIG_HP_MAX, uint8_t paLut=RADIOLIB_SX126X_PA_CONFIG_PA_LUT)
 Set the PA configuration. Allows user to optimize PA for a specific output power and matching network. Any calls to this method must be done after calling begin/beginFSK and/or setOutputPower. WARNING: Use at your own risk! Setting invalid values can and will lead to permanent damage! More...
 
int16_t calibrateImage (float freq)
 Perform image rejection calibration for the specified frequency. Will try to use Semtech-defined presets first, and if none of them matches, custom iamge calibration will be attempted using calibrateImageRejection. More...
 
int16_t calibrateImageRejection (float freqMin, float freqMax)
 Perform image rejection calibration for the specified frequency band. WARNING: Use at your own risk! Setting incorrect values may lead to decreased performance. More...
 
int16_t setPaRampTime (uint8_t rampTime)
 Set PA ramp-up time. Set to 200us by default. More...
 
int16_t transmit (const char *str, uint8_t addr=0)
 C-string transmit method. More...
 
virtual int16_t transmit (const 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 (const 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...
 
virtual int16_t standby (uint8_t mode)
 Sets module to a specific standby mode. 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...
 
float getFreqStep () const
 Gets the module frequency step size that was set in constructor. More...
 
uint32_t getIrqMapped (RadioLibIrqFlags_t irq)
 Convert from radio-agnostic IRQ flags to radio-specific flags. More...
 
int16_t checkIrq (RadioLibIrqType_t irq)
 Check whether a specific IRQ bit is set (e.g. RxTimeout, CadDone). More...
 
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! More...
 
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! 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...
 

Additional Inherited Members

- Public Attributes inherited from SX126x
bool XTAL
 Whether the module has an XTAL (true) or TCXO (false). Defaults to false.
 
bool standbyXOSC
 Whether to use XOSC (true) or RC (false) oscillator in standby mode. Defaults to false.
 

Detailed Description

Derived class for SX1261 modules.

Constructor & Destructor Documentation

◆ SX1261()

SX1261::SX1261 ( Module mod)

Default constructor.

Parameters
modInstance of Module that will be used to communicate with the radio.

Member Function Documentation

◆ checkOutputPower()

int16_t SX1261::checkOutputPower ( int8_t  power,
int8_t *  clipped 
)
overridevirtual

Check if output power is configurable.

Parameters
powerOutput power in dBm.
clippedClipped output power value to what is possible within the module's range.
Returns
Status Codes

Reimplemented from PhysicalLayer.

◆ setOutputPower()

int16_t SX1261::setOutputPower ( int8_t  power)
overridevirtual

Sets output power. Allowed values are in range from -17 to 15 dBm.

Parameters
powerOutput power to be set in dBm.
Returns
Status Codes

Reimplemented from SX1262.


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