Ryan Longo and Michu worked together to make this cool DIY Daft Punk helmet with Raspberry Pi – software by Michu, the idea and hardware by Ryan Longo:
So I wrote a Netty based Java application using Pi4J which does exactly this. The UDP2I2C source is published on GitHub
My application receive UDP data in the TPM2.net (german forum) format, converts the 24bpp data to 12bpp and sends out the data on the I2C bus to a Rainbowduino v3. However it’s quite easy to adapt the software to do other things.
Via the forum.