GPS

Frida V, a Mapping Bicycle

Frida V, a Mapping Bicycle

We posted about Frida V. (Free Ride Data Acquisition Vehicle), a mapping bicycle, back in 2007. However, it looks like they haven’t quit working on this neat project. Frida V. is a rugged and comfortable bicycle equipped for efficient exploration and mapping of public urban spaces. It carries a small computer, GPS positioning device, 802.11 […]

Citizens as sensors

Citizens as sensors

Quick question: If you were having a heart attack and could choose one person to help you &emdash; either a paramedic, 10 miles away, or a CPR-certified neighbor, three blocks away &emdash; who’d make the cut? Since it’s your life at stake, let me give you a few more details to help aid in your […]

Nixie tube reverse geocache box

Nixie tube reverse geocache box

Arduino forum member RickP posted his awesome-looking reverse geocache box, which unlocks to reveal its contents only when it’s in a certain place on the globe. He uses an Arduino, a GPS sensor, and a trio of nixie tubes, which indicate the box’s distance from that special spot. When the button is pressed in that […]