agreg-project-embedded/lib/Transmitter/LoRaTransmitter.h

#pragma once
#include <ITransmitter.h>
#include <SPI.h>
#include <RadioLib.h>
#include <Preferences.h>
#include <config.h>

#define LORA_SCK  5
#define LORA_MISO 19
#define LORA_MOSI 27
#define LORA_NSS  18
#define LORA_RST  23
#define LORA_DIO0 26
#define LORA_DIO1 33

class LoRaTransmitter : public ITransmitter {
public:
    LoRaTransmitter();

    TransmitError init()                              override;
    TransmitError join()                              override;
    TransmitError send(uint8_t* payload, size_t size) override;

private:
    uint64_t _joinEUI;
    uint64_t _devEUI;
    uint8_t  _nwkKey[16];
    uint8_t  _appKey[16];

    SX1276      _radio;
    LoRaWANNode _node;
    Preferences _prefs;

    uint8_t _noncesBuffer[RADIOLIB_LORAWAN_NONCES_BUF_SIZE];

    void    _reset();
    void    _restoreDevNonce();
    void    _persistDevNonce();
    int16_t _restoreSession();
    void    _saveSession();
    int16_t _fullJoin();
};