Step 8: Resources, links, thanks, ideas
Here are the links that were invaluable in making this project work:
RF info: http://narobo.com/articles/rfmodules.html
Using wii with processing: http://processing.org/discourse/yabb2/YaBB.pl?num=1186928645/15
Wiimote: http://www.wiili.org/index.php/Wiimote, http://wiki.wiimoteproject.com/IR_Sensor#Wavelengths
4 point calibration: http://www.zaunert.de/jochenz/wii/
Without a lot of people publishing their work, this project would have been a lot harder and more expensive.
Massive thanks to all open source crew, people who hacked the wiimote, Classiclll for making wiimote easy to use with processing, Jochen Zaunert for code to do calibration, processing crew, arduino crew, Lou for carpentry help, and all those who explore, make and then publish their findings online!
Other people's systems
* I only just found http://friispray.co.uk/, with open source software and a howto
* this system allows use of stencils: cool! http://www.wiispray.com/, no code or howto
* yrwall's virtual graffiti system, no code or howto.
Ideas for exploration
* use 2 wiimotes to do 3D volume tracking and do away with distance sensor in the can: http://www.cl.cam.ac.uk/~sjeh3/wii/. This would be good because the distance sensor is currently the weakest part of the system. It would also mean we could use a proper rear projection screen for more vivid images.
* use a wiimote in the can to detect angle of spray can. This would add realism to the spray paint model.