We’ve seen numerous products geared toward tracking the location and activities of your pets, two in the last month, but we feel sure you can make more functional devices than those you can purchase. Let’s look at a few and consider our options.
gps344 Articles
Ardupilot: Arduino Based UAV Autopilot
A short while back, [Chris Anderson] released an Arduino based autopilot. It rings in fairly cheap and being open source, you can tweak away. To add more functionality, he’s releasing a dual core version. Thanks to the second processor, it no longer requires an external hardware co-pilot. It uses an on-board GPS and features an ATtiny based fail safe. It’s still under development, but he’s made the design files available.
GPS Logging Arduino Shield
ladyada continues to produce more and more interesting Arduino shields. This new GPS logger plugs into a standard Arduino board and has support for four different GPS receiver modules. On the backside of the board is an SD card slot where it stores the coordinates in a text file. The total runtime can vary from five hours to twenty depending on how you choose to power the device and how you use the device. How often you read the device and whether you maintain the GPS lock will affect the power consumption. Like all of ladyada’s projects, you’ll find a great construction guide and example code on her site.
Nano GPS Logger
This is a nice, compact gps logger that’s built around a PIC16F872 and some eeprom chips. It was designed for a particular GPS receiver, but should be easily adaptable to others since the unit ouputs standard sentences at 4800 baud. Full schematics and board layout are available on the project page.
Dash Express Now Twittering
Here’s a quick hack to satiate our appetite for location aware applications. The Dash Express is a GPS unit with cellular and WiFi radios so it can do two way communication. Out of the box it can download maps and traffic on the fly. A little while ago they opened up the API so the device could receive info from other web services and owners could give feedback, like reporting speed traps live. The handy hack embedded above publishes your location to Twitter; we would have preferred it hit an actual location service like Brightkite. This just the tip of the iceberg when it comes to possible applications. We wonder what the adoption rate of the Dash Express will be, since the iPhone also has a touchscreen, GPS, and of course a cellular connection.
We’ve got a Dash Express in the lab and it’s based on the OpenMoko design. What sort of tomfoolery would you like to see us do with it? What do you think the killer app for the Dash Express will be?
[via Gizmodo]
Laser Insect Photography Rig
[Marc] sent in this awesome insect photography rig. The camera is manually pre-focused and set for a 30 second exposure at ISO100. The aluminum cylinder in front of the lens is an external shutter mounted with a custom turned lens adapter. It’s used because the built in shutter is too slow for insect capture. The camera/shutter is triggered by a pair of lasers with photo detectors. When both beams are broken, the insect should be in front of the lens. A Garmin GPS provides position information that’s tagged on the image by the Nikon D200. A large photo of the rig is here, while a more detailed writeup on building it is here.
Update: It looks like we covered a previous version of this rig, but the old links are down and we didn’t have a shot of the setup. Oh, and I forgot to mention [Marc] new control box for running this rig.
Location Aware Task Tracking
With the iPhone finally getting legitimate GPS we’re bound to see more widespread use of location based apps. Services like Dodgeball, Brightkite, and a few Twitter clients have been around, but failed to tightly integrate with the hosting phone. Now we’re seeing applications that reach beyond just “finding your friends”. [Merlin Mann] directed us to the version of OmniFocus for the iPhone. OmniFocus is a task management system that’s now location aware thanks to the iPhone. This means it knows to show you your grocery list while you’re at the store and work tasks while you’re at work. Passive interaction could really make similar systems a lot more enjoyable to use.
We think this is just the tip of the iceberg. Imagine alternate reality gaming that gives you a virtual map while you navigate the real world. Geocaching, road rallies, and scavenger hunts could have a running narrative displayed as you progressed. Using technologies like GeoRSS will let us pull data back into the real world making that rare trip outside a lot less painful.
