I had christmas lights which needed an update to support JSON.
What it does
Visualizes the worlds emotions! 6 Basic emotions mapped to different colours and special emotion hack day keywords to activate party mode.
How I built it
Twitter Stream API with node.js/raspberry pi connected to Arduino driving a LPD6803 RGB LED strip.
Challenges I ran into
Broken jumper cable and picking the wrong serial port.
Full EmotionML support for choosing which emotion model to track.