BUILD NOTES
This locked gift box guides recipients to the only place on Earth where it will open.
Reverse Geocache Puzzle Box
BY MIKAL HART
WHAT FOLLOWS IS A TALE OF ROMANCE, mystery, friendship, and mechatronics. A couple of years ago my friend Chris, who first introduced me to the Arduino, amazed us with the news that he was moving to France to marry his girlfriend Christèle.
Once I recovered from the surprise, it occurred to me that putting together an Arduino-based wedding present might be a uniquely fitting thanks for his years of friendship ...
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