Overview：

In this tutorial we will connect a MAX7219 and scroll the text across.

Since these modules use the MAX7219 LED driver chip, we will be able to turn on

and off the 64 LEDs of each module, using only 3 pins on our UNO.

Component Required: 

1 x Uno R3

1 x Dot matrix light

16 x F-M wires (Female to Male DuPont wires)

1 x RC522 RFID module

7 x F-M wires (Female to Male DuPont wires)