I have built the lighthack encoder with the pan and tilt encoder. The pan/tilt and buttons work great. I modified it to add an intensity encoder. The hardware seams to work fine with the extra encoder, but I am having trouble modifying the script to get the eos and the intensity encoder to communicate correctly. I have been looking for any scripts online for an intensity encoder, but I have not had any luck. Does anyone know of a site that has the Arduino script for an intensity encoder?