High altitude balloons

We received quite a bit of tips, after posting about the 150$ high altitude balloon project, from communities and teams who had done similar tasks. There is more to these projects than simply filling a balloon and attaching a camera, so in order to allow everyone their 7 seconds of well deserved fame, we’ve compiled a quick list of similar high altitude balloons. Catch it after the break.
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How-To: Make an RGB combination door lock (Part 1)

Part 2 can be found here

Putting a custom designed electronic lock on your space seems like a geek right of passage. For our latest workspace, we decided to skip the boring numbered keypad and build a custom RGB backlit keypad powered by an Arduino. Instead of typing in numbers, your password is a unique set of colors. In today’s How-To, we’ll show you how to build your own and give you the code to make it all work.

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Metalab’s LED matrix display

Our friends at Vienna’s Metalab have been working on this project quite a while. Soldering their hearts out to create an FPGA controlled monochrome LED dot matrix display. It’s 48×72 array totaling 3,456 LEDs, soldered by hand. It creates some serious geek bling thanks to an mplayer plugin developed just for the project and it runs up to 72fps. Build details and source code are on the project page. Be sure to check out the awesome video demo below.

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