Drawing a picture
Try the example Beating heart right in your browser in Eduingo AI Lab. The heart on the matrix beats like a real one: two quick beats, ba-dum, and then a short rest. The beating comes from switching between two pictures, a big heart and a small one, with different waiting times between them. Try making the heart beat faster, as if it were running uphill.
You will find more about the module on the LED Matrix page.