Hello,

A few years ago our group installed a large scale reactive wall in the lobby of the Toronto Sheraton written in Processing (actually the newsticker is processing too). It has been going for over 2 years and we are just now returning for our first tune up. I wanted to share the project, but also see what other "permanent" installations people were doing and maybe we could all share some tips for maintaining them.

Our installation
http://lab.rockwellgroup.com/work/sheraton-toronto

best regards,
Joshua
New Media Lead
http://lab.rockwellgroup.com

Some things we learned (hope these aren't too obvious):
* Using DisplayConfigX to force resolutions when your video is being extended via cat5. http://www.3dexpress.de/index.html

* We tend to use analog video for video sensing with a DAC converter on the side of the computer. We just completed an installation with firewire over 100 ft. and there are just too many issues.

* We used sonar sensors and arduino instead of video sensing so that we didn't have to deal with lighting variations. I would probably use video sensing if I were to redo it. There advances in speed and technique for video sensing has come along way in just a few years.

* Applescript to restart the app in case it crashes (power interruptions, crazy unforeseen circumstance, etc.)