Hi. A friend asked me if I could make him a test equipment which could test which of his skis has the best glide. This should be done by timing how fast the skier glides down a little hill. As he is competing in big contests he would like to have a light yet robust design which he could test the skis just before the contest. I think the best way to go would be to use IR and a reflector. One could then use a PIC to measure the time between point A and B. What do you think? Johan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist