GPS

Autonomous Ocean-Crossing Robots Launched

Autonomous Ocean-Crossing Robots Launched

Here’s a clip of Liquid Robotics founder and CTO Roger Hine talking, at the most recent Bay Area Maker Faire, about the innovative design of his company’s Wave Glider robot boat, which converts the up-and-down motion of waves at the surface into energy for propulsion. More technical details are available on Liquid Robotics’ site. On November 17, Liquid Robotics launched four…

Reverse Geocache Briefcase Unlocks in the Right Spot

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.

Homemade GPS Receiver

Homemade GPS Receiver

Andrew Holme built this incredible four-channel GPS receiver using a repurposed FPGA board from a previous frequency synthesizer project. Connected to a PC running a console app, Andrew’s receiver is capable of tracking four satellites simultaneously, which is good enough to capture lat, long, and altitude.

Underwater Photo Gallery

Underwater Photo Gallery

As gimmicks go, this one from diver and photographer Andreas Franke is pretty smart: The novelty of an “underwater gallery” is likely to bring lots of attention to his work in the press (heck, it worked for me), and the situation of the exhibit itself pre-screens for clients who are wealthy enough, both in terms of free time and in terms of disposable income, to appreciate and buy expensive art.