I'll see if I can find it in my archives, but there was a Circuit Cellar project some time ago, where someone made an epilepsy monitor for their dog, I can't recall if the log retrieval was manual or if it was remote. It had an 'incident' LED so that the owner new an 'event' had occurred. Maybe this could be rehashed. I believe the sensor worked on some sort of oximeter type sensing rather than something to detect movement. Colin -- cdb, colin@btech-online.co.uk on 11/7/2009 Web presence: www.btech-online.co.uk Hosted by: www.1and1.co.uk/?k_id=7988359 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist