File content as of revision 3:369546c57dc7:

#ifndef RFM95W_H
#define RFM95W_H

#include "mbed.h"
#include "sx1276-hal.h"
#include "Board.h"

#define GATEWAY_ID 1    // Adresa gatewayu (id)
#define NODE_ID 2       // Moja adresa (id) 

////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/* Set this flag to '1' to display debug messages on the console */
#define DEBUG_MESSAGE   0

/* Set this flag to '1' to use the LoRa modulation or to '0' to use FSK modulation */
#define USE_MODEM_LORA  1
#define USE_MODEM_FSK   !USE_MODEM_LORA

#define RF_FREQUENCY                                    869525000 //868000000 // Hz
#define TX_OUTPUT_POWER                                 20        // 20 dBm

#if USE_MODEM_LORA == 1
                            // Max range, slow data rate = BW=125, CR=4/5, SF=12
    #define LORA_BANDWIDTH                              1         // [0: 125 kHz,
                                                                  //  1: 250 kHz,
                                                                  //  2: 500 kHz,
                                                                  //  3: Reserved]
    #define LORA_SPREADING_FACTOR                       12        // [SF7..SF12]
    #define LORA_CODINGRATE                             1         // [1: 4/5,
                                                                  //  2: 4/6,
                                                                  //  3: 4/7,
                                                                  //  4: 4/8]
    #define LORA_PREAMBLE_LENGTH                        8         // Same for Tx and Rx
    #define LORA_SYMBOL_TIMEOUT                         5         // Symbols
    #define LORA_FIX_LENGTH_PAYLOAD_ON                  false
    #define LORA_FHSS_ENABLED                           false
    #define LORA_NB_SYMB_HOP                            4
    #define LORA_IQ_INVERSION_ON                        false
    #define LORA_CRC_ENABLED                            true

#elif USE_MODEM_FSK == 1

    #define FSK_FDEV                                    25000     // Hz
    #define FSK_DATARATE                                19200     // bps
    #define FSK_BANDWIDTH                               50000     // Hz
    #define FSK_AFC_BANDWIDTH                           83333     // Hz
    #define FSK_PREAMBLE_LENGTH                         5         // Same for Tx and Rx
    #define FSK_FIX_LENGTH_PAYLOAD_ON                   false
    #define FSK_CRC_ENABLED                             true

#else
    #error "Please define a modem in the compiler options."
#endif

#define RX_TIMEOUT_VALUE                                2500000     // in us                          // 3500000
#define BUFF_SIZE                                       255          // Define the payload size here   // 32
#define MAX_DEVICES                                     255
#define MAX_RESENDS                                     5
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------

class RFM95W
{
private:
    RadioEvents_t radioEvents;                /**< Radio events function pointer   */
    SX1276MB1xAS radio;                       /**< Radiovy modul   */
    DigitalOut indicationLed;                 /**< Indikacna led   */
    AnalogIn noise;                       
    Ticker ledTicker;
    Ticker sendTicker;
    Ticker ackTicker;

    uint8_t receivedMessage[BUFF_SIZE];
    uint8_t sendBuffer[BUFF_SIZE];
    uint8_t ack[3];
    volatile uint8_t messageNumbers[MAX_DEVICES];
    volatile uint8_t messageNumber;            /**< My message number   */
    volatile uint8_t ledState;
    volatile float timeOnAirSec;
    volatile bool receivedAck;
    volatile uint8_t sendCounter;
    
    float CalculateRandomTime();
    void InitRandom();
    void OnLedTick();
    void SendMessage();
    void SendAck(uint8_t addr, uint8_t messageNumber);
    void OnCheckAck();
    void OnSendAgain();
public:
    RFM95W();
    void Init();
    void OnTxDone( void );
    void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr );
    void OnTxTimeout( void );
    void OnRxTimeout( void );
    void OnRxError( void );
    void OnCadDone( bool channelActivityDetected );  
    void SendValue(uint8_t addr, float value);
};
extern RFM95W rfm;

#endif