-#include "FastSPI_LED2.h"
+#include "FastLED.h"
 
 #define ROWS 10
 #define COLS 10

  // Let the controller know we're using WS2801 leds, and give a pointer to the current colour array
  LEDS.addLeds<WS2801, RGB>(leds, NUM_LEDS);
  // Limit the brightness somewhat (scale is 0-255)
  LEDS.setBrightness(127);
  
  // Initialise the leds to black (off)
  for(uint8_t i=0; i<NUM_LEDS; ++i){

// Return 0-based led index for 0-based x and y grid co-ordinate values
// The LED string snakes through the grid, so every row the positive x direction switches
uint8_t xy2i(uint8_t x, uint8_t y){
  // this is a 90-degree rotation
  uint8_t temp = x;
  x = ROWS-1-y;
  y = temp;
  if(y%2){
    // It's an uneven row: x should be reversed---or subtracted from this line's
    //last index, which is the next line's first minus 1
