Hi All, In light of the large positive response I received to my query, I thought I would give you a little more detail on my objective. Our club (www.chibots.org) is looking to prod interest by possibly developing 1 or 2 new competitions over and above the standards that we have going now. ie. line following, advanced line following, solarollers and minisumo. I lit on the idea of providing a short duration (20 seconds) IR beacon for a robot to get a bearing on and then try to navigate to it. The beacon would be on just long enough to get the bearing and than turn off. The robot must than navigate to the beacon in reasonable time. The shortest time would be the better navigator. This would give our club members the opportunity to build there skills and knowledge in dead reckoning, location determination and object avoidance. The line-o-sight from starting point to beacon would be clear enough to take a bearing, but not clear enough for passage. I have to admit that this follows along with my interest in robotics (autonomous navigation). I hope this little note wasn't contrary to the guidelines of the PICLIST. Best Regards to All, Tom --------------------------------- Do you Yahoo!? Yahoo! Mail - You care about security. So do we. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist