File content as of revision 0:7e7575bda256:

#include "mbed.h"

#include "board.h"
#include "radio.h"

Serial pc(USBTX, USBRX); // tx, rx

InterruptIn DatarateButton(USER_BUTTON);

static uint8_t LoRaMacBuffer[255];

uint32_t TxFreq;
uint8_t CurrentDatarate = 12;
bool ButtonPressed = false;

/* -------------- */

void UserButtonPressed( void )
{
    if( CurrentDatarate == 7 )
    {
        CurrentDatarate = 12;
    }
    else
    {
        CurrentDatarate -= 1;
    }
    
    ButtonPressed = true;
}

/* -------------- */

int main() {
    pc.printf("HelLoRa !\n");
    
    // Get USER button pressed
    DatarateButton.fall( &UserButtonPressed );
    
    // Radio board init
    BoardInit( );
    
    while( 1 )
    {
        if( ButtonPressed == true )
        {
            // Send one packet
            TxFreq = 868100000;
            Radio.SetChannel( TxFreq );
            Radio.SetTxConfig( MODEM_LORA, 14, 0, 0, CurrentDatarate, 1, 8, false, true, 0, 0, false, 3e3 ); 
            Radio.Send( LoRaMacBuffer, 10 );
            pc.printf( "LoRa packet: Freq=%u, SF%u\n", TxFreq, CurrentDatarate );

            // Stop sending
            ButtonPressed = false;
        }
    }
    
    return 0;
}