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Geo Data Logger: Arduino+GPS+SD+Accelerometer to log, time-stamp, and geo-tag sensor data

Geo Data Logger: Arduino+GPS+SD+Accelerometer to log, time-stamp, and geo-tag sensor data
UPDATES Oct 17, 2013: I have published a guide on using your Android phone to accomplish a similar task by leveraging your Android device's built in GPS and sensors. Feb 6, 2013: Featured on GeoAwesomeness Nov 24, 2012: Featured on Hackaday Nov 21, 2012: Featured by John Boxall @ Freetronics Nov 20, 2012: Featured on Dangerous Prototypes INTRODUCTION I thought it would be educational to build a prototype that I can take on the road to log, geo-tag, and time-stamp sensor data to be analyzed later with mapping and/or data analysis applications. This prototype is a generic sensor logging/geo-tagging gadget which means the accelerometer can be replaced with any other sensor(s) to log and map anything anywhere. As a matter or fact my next adventure with this logger is to replace the accelerometer with a pollution sensor to visualize levels of air quality around town. Related:  Dev

Coding Fun 8 Hour Mini Recycled Survival Candles in 10 steps! 8 Hour Mini Recycled Survival Candles This Instructable will show you how to make 8 hour survival candles out of everyday items. These candles can be made for next to nothing, bring light in dark times, and bring warmth to you and your family when survival situation takes place. Just follow the following steps and you will become hooked on recycled survival candle making! 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. That's it your done! Forgotten Futures, The Scientific Romance Role Playing Game

Photoshop - Correcting Color Shifts First of all, before we get into correcting color shifts, we have to understand them. Most cameras these days have an automatic white balance setting to control this issue, but everyonce in a while it can be inaccurate. Color shifts are caused by different color temperatures in light, we call these "Kelvin temperatures." Daylight has a Kelvin temperature of 5000, and is the most neutral you can get your photo to look. Have you ever photographed something in your house under a typical house bulb and the whole photo turned out orange or yellow? That's because typical household lights have a Kelvin temperature of about 3000, which can look yellow, but because the human brain is so sophistocated, it corrects this to daylight temperature for us. Tungsten bulbs tend to have a magenta shift to them, while fourescent bulbs can turn a photograph green.

How to write computer games: tips from Gamecamp 4 May 2011 What happens when you get a couple of hundred gamers and game creators in a room and ask them to dream up their own conference? Last weekend the fourth GameCamp took place in London, a so-called unconference event where attendees were encouraged to set their own agenda on the day. Anyone could propose a talk by writing it on the whiteboard. The day included sessions dedicated to playtesting a board game created by an oil company to promote environmental awareness (which got a hearty laugh when announced), "lemon jousting" (a game where two players each balance a lemon on a wooden spoon while trying to knock their player’s lemon off with another spoon), and several board games, including Pac Man (see my photo, above). There were lots of ideas and discussions on the day, but here are some of the things I learned about games and game writing: The story is important. Thanks to everyone who shared their ideas on the day.

Bentwood Rings This is my first Instructable, so I hope that I do not forget anything. I was commissioned by a close friend to make a set of rings for a surprise engagement and a set for wedding bands. I started off with solid wood blanks and a drill press. After making what I thought be a perfect ring, it broke after a couple weeks of wear. At this point I went back to the drawing board and started to research bentwood rings. This not only solved the issue of strength, but also allowed for the beautiful wood grain to show. 1. 2:Making the Ring: Cutting: Start of by selecting the veneer. Making a 3D Game with OpenGL: Deferred shading and stuff | Neuro Productions Lately OpenGL and C++ is pretty much the only thing I do for clients, mostly for installations and iPad apps. And that’s gowning pretty well. But as a creative code guy, I pretty much stayed in our own tech subculture. So one sunny afternoon, I decided to do just that and I started to make my own 3D game from scratch. I wanted to write a blog-post when it was finished. The game: Or more game engine, since I don’t really have any game play at the moment: As you can see, there are still a lot of glitches and things to be done, but I’m happy where it’s going. Some of the things I’ve done so far (not always complete, final or clean). -The terrain generation, it’s an infinite/live generated terrain. -and a lot of other stuff. The current Render pipeline It’s very WIP at this moment, but here is a diagram of how the current rendering is done. Deferred Shading: One of the things I wanted to try was deferred shading, just for the heck of it. How does it work: The result of the Light pass: Day:

Kee Klamp Shelving My original idea was to simply copy the shelves I'd seen, so I started looking for scaffolding poles and a way to cut them. This lead me to Kee Klamp ( an awesome system of poles and clamps - or Klamps :) - that you can literally build anything with as long as you have an Allen Key. The original design I'd seen had each shelf supporting the next by using the flange bases ( The only problem with this was that I'd need to do a lot of pole cutting and the height between the shelves would be forever fixed.

AbnormalActivity Histogram of optical flows (HOFs) are used at each local region in the video frame. Figure 2. Histogram of optical flows - Learning of motion patter Mixture of probabilistic principal component analyzers (MPPCA) are adopted to encode HOF patterns at each local region. - Inference of abnormal activities in space-time MRF Given the probabilities of current observations at individual local regions (i.e., node potential functions in MRF graph) as well as at pair-wise neighbor local regions (i.e., pair-wise potential functions in MRF graph), both of which are assigned by the learned MPPCA model, we infer whether observation at each local region is normal or abnormal. - Incremental update As new data stream in, MPPCA parameters are updated using a closed-form equation. Results Algorithm was tested for over two hours of surveillance videos at a subway station. - Examples of the detected abnormal events: [demo videos] Figure 3. - Advantages of the space-time MRF Figure 4. Figure 5. Conclusion

DIY Battery: Power an LED Flashlight with Pocket Change! We must prepare the barriers which will sit between the nickels and pennies in our pile. With a sharp knife, like an X-Acto knife, carefully cut some thin cardboard or similar material to the size of a penny. How many wafers you must prepare depends on how many coins you end up needing. This amount may vary due to a number of factors. If you're young, clumsy, or for any other reason think you might have problems then please do this with supervision or ask for help. Le blog de quanticbladeproductions

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