#define SIZE 9 int led[] = {13, 12, 11, 10, 9, 8, 7, 6, 5}; //LED pins int state[SIZE]; int but[] = {A0, A1, A2, A3, A4, A5, 4, 3, 2}; //Switch pins int counter; void setup() { int i; for(i=0;i