//We always have to include the library #include "LedControlMS.h" /* Now we need a LedControl to work with. ***** These pin numbers will probably not work with your hardware ***** pin 12 is connected to the DataIn pin 11 is connected to the CLK pin 10 is connected to LOAD We have only a single MAX72XX. */ #define NBR_MTX 4 LedControl lc=LedControl(12,11,10, NBR_MTX); /* we always wait a bit between updates of the display */ String scrollString= "WATANYU WASUSIKUL "; int stringLength=scrollString.length(); char ch0, ch1, ch2, ch3; int nextCharIndex=0; void setup() { /* The MAX72XX is in power-saving mode on startup, we have to do a wakeup call */ Serial.begin (9600); Serial.println("Setup"); Serial.println(scrollString); Serial.println(stringLength); for (int i=0; i< NBR_MTX; i++){ lc.shutdown(i,false); ...