DIY Reverse Geocache Puzzle

Now here’s a DIY gadget that you don’t see everyday, a DIY reverse geocache puzzle box, given as a wedding gift. Using the Arduino prototyping platform and a GPS device, it will lead you to a specific location on the globe, before you’re able to open the box. Of course, you’ll need to make sure the person who receives such an item is fairly adventurous, if not you’re going to run the risk of them just throwing it in the junk pile at the back of their home.