So I've made a festive little project using arduino and processing. It's called Christmas Twee and it basically allows you to tweet our christmas tree a colour and it will do its best to interpret it as an RGB colour!
Essentially what happens is I download the latest 20 @mention tweets of the @xmastwee account and iterates through searching each one for a colour in an array. When it finds one sends 3 rgb values from the same array entry down serial port where arduino picks them up and passes them onto a dmx decoder controlling 2 rolls of 10m RGB LED strips
Pictures and more in depth info to follow, but take a look and let me know what you think
it has heliotrope! you just need to do it with lower case! To have both upper and lower case it would double the size of the array so I just went with lower case since most people dont care much for grammar on twitter... 140 characters n all