File content as of revision 0:37c7223b15ea:

/** 
 *  example program for the use of the hts221  class 
 *  for more info see the README.MD of the repository 
 *  https://github.com/wimbeaumont/peripheral_dev_tst.git
 *  copied from the mbed online compiler envionment 
 *  V 0.1  : initial version for software development ( dummy i2c interface 
 *  
 * (C) Wim Beaumont Universiteit Antwerpen 2017 2019
 *
 * License see
 * https://github.com/wimbeaumont/PeripheralDevices/blob/master/LICENSE
 */ 

#define VEML7700EXAMPLEVER "1.56"

#ifdef __MBED__ 

#include "mbed.h"


#if   defined (TARGET_KL25Z) || defined (TARGET_KL46Z)
  PinName const SDA = PTE0;
  PinName const SCL = PTE1;
#elif defined (TARGET_KL05Z)
  PinName const SDA = PTB4;
  PinName const SCL = PTB3;
#elif defined (TARGET_K20D50M)
  PinName const SDA = PTB1;
  PinName const SCL = PTB0;
#else
  #error TARGET NOT DEFINED
#endif
Serial pc(USBTX, USBRX);

#include "I2C.h"
#include "I2CInterface.h"
#include "MBEDI2CInterface.h"  

#else 

#include <cstdio>
#include "DummyI2CInterface.h"  

#endif //__MBED__

#include "dev_interface_def.h"
#include "veml7700.h"




#ifdef __MBED__ 
MBEDI2CInterface mbedi2c( SDA, SCL); 
MBEDI2CInterface* mbedi2cp=  &mbedi2c ;
#else 
DummyI2CInterface  mbedi2c;
DummyI2CInterface* mbedi2cp= &mbedi2c;
#endif //__MBED__


I2CInterface* i2cdev= mbedi2cp;


int main(void) {
   
   // get the version of getVersion 
   char dummystr[50];
   getVersion gv;
  int err;
   printf("VEML7700 lux meter    example program version %s,\n\rcompile date %s time %s\n\r", 
        VEML7700EXAMPLEVER,__DATE__,__TIME__);
   printf("getVersion :%s\n\r",gv.getversioninfo());
   gv.dev_interface_def_version(dummystr);
   printf("%s\n\r ",dummystr);
   printf( "i2c dev info:%s\n\r",i2cdev->getversioninfo());
   VEML7700 luxm ( i2cdev);
   printf ( "VEML7700 lib version :%s\n\r ",luxm.getversioninfo());
   err=luxm.get_status( );
   if( err) {
        printf("get error %d after init \n\r", err);
    }
  
    
   luxm.set_integrationtime(1000); // > max  
   float gain=.125;//default 
    bool sd ,ie; u16 pers_protect;int IntT=8; float gainrb;
   while ( 1) {
        int alsbits = luxm.get_als_bits ( );
        err=luxm.get_status( );
        if( err) {
            printf("get error %d after get als init \n\r", err);
        }else {
            if ( alsbits < 0xFF ) {
                  if (gain <    2.0 ) { 
                    gain=gain*2;
                    printf("increase gain to %f \n\r", gain);
                    luxm.set_gain(gain);
                    if( gain > 2.0 ) gain =2.0;
                    
                  } //else max gain 
            }
            if ( alsbits > 0x2FFF) {
                 if( gain > .125 ) {
                        gain = gain/2;
                        printf("decrease gain to %f \n\r", gain);
                        luxm.set_gain(gain); 
                        if (gain <  .125) gain=0.125;
                } // else min gain 
            }
         } // else if err    
        int whitebits = luxm.get_white_ch_bits ( );
        if( err) {
            printf("get error %d after get white init \n\r", err);
        }
        luxm.decode_Reg0(   sd , ie, pers_protect, IntT,  gainrb  );
        err=luxm.get_status( );
        if( err) {
            printf("get error %d after read cmd reg \n\r", err);
        }
        printf( " als %04x , white %04x  @gain %f reg0: sd %d, ie %d , Pers_prot %d, IntT %d, gain %f \n\r", 
                alsbits, whitebits,gain,(int) sd ,(int) ie,(int) pers_protect, IntT,  gainrb  );
        i2cdev->wait_for_ms(1000);
    }
    return 1;
}