File content as of revision 4:42e2706f9847:

#include "mbed.h"
#include "rtos.h"
#include "MMA8451Q.h"

  PinName const SDA = PTE25;
  PinName const SCL = PTE24;

#define MMA8451_I2C_ADDRESS (0x1d<<1)

int main(void)
{
    MMA8451Q acc(SDA, SCL, MMA8451_I2C_ADDRESS);
    PwmOut rled(LED1);
    PwmOut gled(LED2);
    PwmOut bled(LED3);
    Serial pc(USBTX, USBRX); // tx, rx


    pc.printf("MMA8451 ID: %d\n", acc.getWhoAmI());

    while (true) {
        float x, y, z;
        x = acc.getAccX();
        y = acc.getAccY();
        z = acc.getAccZ();
        
        Thread::wait (300);
        
        //Flat my led
        if(z>= 0.9){
            
            rled = 0;
            gled = 0;
            bled = 0;
            
            pc.printf("flat\n\r");
            
        
            }else if (y>=0.9){
                
                //right my led
                rled = 0;
                gled = 0;
                bled = 0;
                pc.printf("right\n\r");
                
                }else if (x>=0.9){
                    //over
                    
                    rled = 0;
                    gled = 0;
                    bled = 0;
                    pc.printf("over \n \r");
                    
                    }else if (x<= -0.90){
                        
                        rled = 0;
                        gled = 0;
                        bled = 0;
                        pc.printf("up\n\r");
                        
                        }
                        
                        else {
                            
                            rled = 1;
                            gled = 1;
                            bled = 1;
                            pc.printf("\n\r");
                            
                            }
       
        pc.printf("X:%1.2f ,Y:%1.2f ,Z:%1.2f\n\r", x,y,z);
       
        
      
    }
}