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geocache2up 600x195 Reverse Geocache Briefcase Unlocks in the Right Spotarduino bug 150x150 Reverse Geocache Briefcase Unlocks in the Right Spot
Check out Flickr user Rumtopf’s fancy take on the reverse geocache box. For those who don’t know, a reverse geocache is a box that unlocks itself when the GPS sensor inside senses that it’s in a specific spot on the globe. Rumtopf used a snazzy doorbell button to wake an Arduino, which checks the GPS and displays the distance from that spot on an LCD. He also used a magnetic child safety lock as a backdoor to access the inside of the briefcase in case of malfunction. And if you’re ever in a position which requires you to solve a reverse geocache, he also created a web-based utility to help narrow down the location and unlock your prize, whatever it may be. [via the MAKE Flickr pool]

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MattRichardson

Matt Richardson

Matt Richardson is a San Francisco-based creative technologist, Contributing Editor at MAKE. He’s the co-author of Getting Started with Raspberry Pi and the author of Getting Started with BeagleBone.


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