rEgonicS,
The sonar is a sonic range finder, the camera will be used to detect light from the retro-reflective tape. Please take some time to investigate the sonars on the MaxBotics site. Over the last 5 years they have introduced a series of them for different applications. The EZ1 may not be the best for singling out the objects of the size you were testing. Our experience with them - using the analog input - has been very similar with StevenB. Last year we used it as one of two sensors for hanging tubes in autonomous (the other being the yaw rate sensor). Once we picked out the right sonar for ranging to the rack, we were able to hang very consistently. ( At first we used a sonar with too wide of a beam, and kept ranging on our alliance partners. That caused us to stop short of the rack.) I would expect to be able to range to the fender or the backboard this year, if it proves to fit our strategy. It might also be used to determine the distance between 'bots. The trick is to know when to pay attention to it's output and when not to
