The use of color here really highlights certain portions of the packet header. For example, the source and destination addresses and ports really jump out. But there are some other, more subtle color patterns that I worked in here. For example, if you look closely you’ll see that I matched the color of the ACK bit with the blue in the ACK number field. Similarly the colors of the SYN bit and the sequence number match, as do the URG bit and urgent pointer field.
Master Builders, Master Model Makers, or Master Model Designers are people who work for LEGO or LEGOLAND to design and maintain large-scale displays for the company or theme parks. We’ve taken you behind the scenes at LEGOLAND with the charming and telegenic Gary McIntire, but what’s it like to work as a Master Builder for LEGO’s North American headquarters in Enfield, Connecticut?
Mindstorms EV3 runs on new Linux firmware that's ready for Android and iOS control out of the box, creates an overall more hackable platform and allows further programming on the core Intelligent Brick itself; accordingly, there's an SD card slot for local storage. A built-in infrared sensor expands the possibilities for a more autonomous design, as well -- Lego suggests that EV3 constructs can follow other moving gadgets, or even their creators, around the room
One Month left for Registration and Phase One of the Google Lunar MoonBots. Steps to do:
Make a Video
Build the World's Most Awesome LEGO Moon Robot
Win Cool Prizes, Including a MINDSTORMS Robot and a Trip to Hawaii
Yes, it's that easy. Just enter the MoonBots 2012 Challenge, shoot video, build an awesome robot with family or friends, and win cool stuff. It's totally FREE for 9-17 year old kids all over the world who want to compete to win awesome prizes. No travel necessary. Competition open to kids all over the world. Up to now , just 12 teams have signed in and knowing that the best 30 teams will go to Phase Two, that will mean as of now all teams have an equal change in getting to phase two!
Over the years, Lego has had five strategic initiatives aimed at girls. Some failed because they misapprehended gender differences in how kids play. Others, while modestly profitable, didn't integrate properly with Lego's core products. Now, after four years of research, design, and exhaustive testing, Lego believes it has a breakthrough. On Dec. 26 in the U.K. and Jan. 1 in the U.S., Lego will roll out Lego Friends, aimed at girls 5 and up. ...The company's confidence is evident in the launch -- a full line of 23 different products backed by a $40 million global marketing push. "This is the most significant strategic launch we've done in a decade," says Lego Group Chief Executive Officer Jørgen Vig Knudstorp. "We want to reach the other 50 percent of the world's children."
The I2C frequency has to be adjusted – the datasheet says 9600Hz, but I have adjusted it to 11494,253Hz, as it is the same as the one used by the NXT (measured with my logic analyzer). For more information see this pdf, at “Input ports” and “I2C Communication”. Furthermore if you have a look at the Appendix 7-LEGO MINDSTORMS NXT Ultrasonic Sensor I2C communication protocol, it says byte 2 is R + 0×03, this means that the user have to send a repeated start and read from the device straight away. So for example if you want to read the product version. The official Arduino Library (Wire.h) doesn’t support repeated start. So instead I decided to use a modified version of Peter Fleury excellent library: I2Cmaster, as it can be used for any AVR devices. The library is modified to work with the Lego Ultrasonic Sensor (I2C frequency set to 11494,253Hz), and the CPU frequency has been set to the one used by Arduino (16MHz). Keywords has also been added, so the commands will colored orange.
Arthur Sacek has created a 3D CNC router that with the exception of the actual milling bit, is built entirely from Lego Mindstorm robotics components. After the jump see a video of his machine in action milling a 3D mesh face created in Autodesk Softimage.