Adding GPS to your Arduino has never been easier. Multiple GPS receivers attach easily to the shield, and with the example sketch (check below), you will be able to locate your exact position within a few meters. Here's where . GPS also gives you amazingly accurate time! Project description, more information and ordering can be found at https://www.sparkfun.com/products/10710 GPS Quickstart Guide: http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=173 Assembly Guide: http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=184 Example Sketch: http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Dev/Arduino/Boards/gps_arduino_1_0.ino