shackspace hacker @4RM4 was looking for something to hack when he visited 29c3. He found someone who was selling RGB-LED stripes with individually addressable LEDs which was (understandably) irresistible and he already had a RaspberryPi to control it with. Controlling the stripe is done via one of the Pi’s SPI ports. However there was nothing to mount the stripe to… except for a trash bin. Luckily the trash bin had a circumference of exactly 1 meter resulting in a 10 row high tubular display when he wrapped the 10 meters of LED stripe around it.
One of the first hacks was a text scroller which was nice but not quite there yet. But soon after that was done 4RM4 was off to the land of classic games and quickly hacked together a snake clone. Playing snake on a tubular display was quite a challenge and since the trash bin had to stay at the congress center once 29c3 was over he opted to go for a more familiar and usable form factor by cutting the 10 meter LED stripe into smaller pieces to build a rectangular display.
He improved his snake clone by adding a high-score feature, auto-play bot, support for free dot placement for debugging, and a clock display in idle mode.
Playing it got even more fun with a Wii-Nunchuck hooked up to the RasPi which was quite easy since he could use the Pi’s GPIO port to talk to the Nunchuck’s I2C interface.