File content as of revision 2:924e2280acf4:

#include "mbed.h"
#include "glibr.h"

Serial USB_link(USBTX, USBRX);       // USB initialization
glibr GSensor(D4,D5);                // I²C initialization : D4 = SDA ; D5 = SCL


int main (void)
{

    USB_link.baud(115200);
    USB_link.format(8, SerialBase::None, 1);
    uint16_t r,g,b,a;
    if (GSensor.ginit()) {
        USB_link.printf("APDS-9960 initialization complete\n\r");
    } else {
        USB_link.printf("Something went wrong during APDS-9960 init\n\r");
    }
//    GSensor.disableGestureSensor();
//    GSensor.disableProximitySensor();
    if( GSensor.enableLightSensor(true)) {  // enables light sensor
        USB_link.printf("light sensor enabled\n\r");
    } else {
        USB_link.printf("Something went wrong with the light sensor\n\r");
    }
    
    /*    if(GSensor.setLEDDrive(0x00)) {  // led current : 100mA
            USB_link.printf("led current set at 100 mA\n\r");
        } else {
            USB_link.printf("Something went wrong during LED initialization\n\r");
        }*/
    while(1) {
        //r = GSensor.getMode();
        // USB_link.printf("mode :%hx ",r);
        if (GSensor.readRedLight(r)) {
           //  USB_link.printf("R:%4hu   ",r);
        } else {
            USB_link.printf("Something went wrong during red value reading\n\r");
        }
        
        if (GSensor.readGreenLight(g)) {
            //USB_link.printf("G:%4hu   ",g);
        } else {
            USB_link.printf("Something went wrong during green value reading\n\r");
        }
        
        if (GSensor.readBlueLight(b)) {
           //  USB_link.printf("B:%4hu   ",b);
        } else {
            USB_link.printf("Something went wrong during blue value reading\n\r");
        }
        
        if (GSensor.readAmbientLight(a)) {
            // USB_link.printf("light:%4hu\r\n",a);
        } else {
            USB_link.printf("Something went wrong during blue value reading\n\r");
        }

        // affichage couleur
        if (a>100) {
            USB_link.printf("no color \r\n");
        }
        else if (r > g ) {
            USB_link.printf("red \r\n");
        }
        else if (g > r ) {
            USB_link.printf("green \r\n");
        }
        

    }

    return 0;
}