Add support for SX127x

1.4.0

Update version to 1.4.0

Asynchronous Transmit and Receive

Modify transmit and receive process sequence to work asynchronously. IRQ pin connection no longer required to work asynchronously in this version. On the other hand, we should use wait() method before continuing transmit or receive to ensure previous transmit or receive finished.

onTransmit() and onReceive() callback method added to SX126x class. You can immediately call a routine function when a transmit or receive operation done. To using those method, IRQ pin connection required. Example to use callback method added in this version.

Typehinting for all methods added. Default input type for write() method and return type for read() method change to tuple.

SX126x method changes:

• setSPI() -> Add changing SPI frequency
• endPacket() -> Add interrupt flag argument
• request() -> Add interrupt flag argument
• listen() -> Add interrupt flag argument
• wait() -> Return false if wait timeout reached and true if otherwise
• setLoRaModulation() -> input bandwidth change to bandwidth value in Hz and input code rate change to code rate denomination
• setLoRaPacket() -> input CRC type and invert IQ change to boolean
• setLoRaPayloadLength() -> deprecated and replaced with setPayloadLength() method
• setLoRaSyncWord() -> deprecated and replaced with setSyncWord() method
• flush() -> deprecated and replaced with purge() method

Methods added in SX126x class:

• setSpreadingFactor()
• setBandwidth()
• setCodeRate()
• setLdroEnable()
• setHeaderType()
• setPreambleLength()
• setCrcEnable()
• setInvertIq()

User defined timeout for wait method

Modify wait method to use user defined timeout. wait method used to limit time for TX and RX operation.
Fix interrupt detection in RX and TX operation.

New LoRa PayloadLength setting

Add setLoRaPayloadLength() method

New receive and transmit feature

New put(), get(), and listen() method in SX126x.py

LoRaRF python library first release

1.0.0

Python LoRaRF library first commit