Here’s an instructable on LED Matrix with custom code/software by Ole_L:
This is the software which you need:
Flash the software to your Arduino and open the processing project with… Processing! Now you should change the line “String portName = “/dev/ttyACM~”;” to your Serial port, on WINDOWS “String portName = “COM~”;”
Via the contact form. Thanks Jan!
Check out the video after the break.