   while(1)
   {
     sendImage(image);
-    if ( a++ > 20 ) // shift in new line
+    if ( a++ > SPEED ) // shift in new line
     {  
       a=0;      
       now = analogRead(AIN)/2;

**/
void setup()
{
  pinMode(BUZ1, OUTPUT);
  pinMode(BUZ2, OUTPUT); // note: also switch
  pinMode(CLOCK, OUTPUT);

#define DATA 14
#define DELAYTIME 1 // microseconds to wait after setting pin

#define TILES 6 // number of tiles
#define SPEED 4 // smaller number is faster 


// The string to display:
const char *str = "}} Hello  World... good morning! }}";


// Image buffer, you can modify the bits and they will be displayed on the 8x8 matrix with the sendImage() function
unsigned char image[8*TILES];


/**
