File content as of revision 0:352d3cd4b88c:

#include "mbed.h"   
#include "LM75B.h"     /* On sheild Temp sensor */
#include "MMA7660.h"   /* On sheild Accelerometer */
#include "C12832.h"    /* On sheild LCD */

Serial host (USBTX, USBRX);
LM75B temp  (D14, D15); 
C12832 lcd  (D11, D13, D12, D7, D10);
MMA7660 MMA (D14, D15);
PwmOut speaker(D6);
InterruptIn sw2_int (PTC6); 
static volatile int sw2_trig; 


float tp, x, y, z, i;
int mode = 0; 

/* the fall interrupt for button2 */
void sw2_interrupt (void)
{
    sw2_trig = 1;
    
}

/* The rise interrupt for button2 */
void sw2_interruptup (void)
{
    sw2_trig = 0; 
    speaker = 0;
}

int main () 
{
     host.baud(38400);   /* Sets the baudrate which is the bits per second */
      sw2_trig = 0;
   
    
    sw2_int.rise (&sw2_interruptup);
    sw2_int.fall (&sw2_interrupt);  
     for(;;) 
     {
        
        /* Displays the Temperature  */
        tp = temp.read (); 
        lcd.cls();
        lcd.locate (0, 1);
        lcd.printf ("Temp: %.3f C", tp);  
        host.printf ("%.3f \r", tp ); 
        wait(0.5); 
        
        
          // if temperature rises above certain point then play sound 
        
        if(tp > 40) 
        {
                speaker.period(1.0/500.0);
                speaker=0.5;
                
        }
        // If temperature falls below certain point then play sounds
        else if ( tp < 15) 
        {
             speaker.period(1.0/500.0);
             speaker=0.5;
        
        }
       /* Displays the Accelerometer  */
            x = MMA.x();
            y = MMA.y();
            z = MMA.z();
   
           // host.printf("Accel: X: %4f Y: %4f Z: %4f\r\n ", x,y,z);
            wait(0.5);
    
            
            
        /* Checks to make sure the acceleromterter is moving still */ 
   
         if (x -1 < x < x+1 && y -1 < y < y+1 && z -1 < z < z+1)
         {
         i++;
         }
         if (i == 10)
         {
             speaker.period(1.0/500.0);
             speaker=0.5;
         }
         if (sw2_trig) 
        {
            mode++;
            sw2_trig = 0;
        }
           /* puts the device to sleep */
        if (mode == 1)
        {
            lcd.cls();
            lcd.locate(0,1);
            lcd.printf("Now going into sleep mode");
            
            sleep();
            
            
        }
        
        /* wakes the device up */
        if (mode >= 2)
        {
            mode = 0;
          
        }  
         
         
     }
    
    
    
}