When graduating from high school or college, decorating graduation caps is generally frowned upon. On the other hand, enforcement is difficult, so creative artisans and hackers have come up with their own decorations to make themselves stand out from the crowd.
This hacker decided to take things to an extreme, embedding a 32×32 LED Matrix between the square piece cardboard, and cloth covering on top of his cap.
Control was provided by a Teensy 3.2 development board and an Adafruit SmartMatrix Shield, allowing him to play GIFs off of an SD card. Results were, of course, spectacular and no withheld diploma was reported in the project’s build log!