The LoRa module has a BUSY and DIO1 (DIO1 of the LoRa module is the interrupt output of the module) line and the RF4463 module has nIRQ and GPIO1 (which is used like the BUSY pin of the LoRa module) lines that are needed as input pins on the STM32 to not have to guess when the module is able to accept a new command.
klausrevo
commented
2 years ago
The LoRa module has a BUSY and DIO1 (DIO1 of the LoRa module is the interrupt output of the module) line and the RF4463 module has nIRQ and GPIO1 (which is used like the BUSY pin of the LoRa module) lines that are needed as input pins on the STM32 to not have to guess when the module is able to accept a new command.