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I recently picked up a new hobby that involves custom building muti-rotor helicopters and during this journey I have found a strong desire to map the flights of my quad copter. Unfortunately, a full sized handheld GPS is much too heavy to add to the payload of the quad copter and still retain respectable flight times. So I began searching for a small, lightweight GPS data logging solution that I could build myself with readily available, off the shelf components.   After a few days of rese ...