Reverse Geocache Briefcase Unlocks in the Right Spot

Arduino Technology
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]

More:

Discuss this article with the rest of the community on our Discord server!
Tagged

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

View more articles by Matt Richardson

ADVERTISEMENT

FEEDBACK