Autonomous

TiltBot

Sept. 06: Pete @ Techno-Stuff has just sent me another new sensor from Techno-Stuff. This time it’s a Accelleration / Tilt sensor. Instead of going into great detail on how it works, I will quote from his site: “ The Accel Sensor lets your robot measure it’s acceleration. The sensor can also be used to measure tilt. This is a two channel device that lets you measure acceleration or tilt along two perpendicular axis....
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Autonomous

FireBot

One of my early projects was to build a fire extinguishing robot. I did this using the parts I had at the time. It was based on a walker platform and used a pneumatic circut to “blow” the fire out when detected. It worked reasonably well with the provided light sensor. Recently, I discovered the PIR (Passive Infrared Sensor) from TechnoStuff. This sensor was built to detect infrared heat and seemed to be a...
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Uncategorized

LEGO Related Links

I have compiled a list of links to clubs, resources and other cool stuff Lego… NXT and Mindstorms Related Blogs .. a Lego Mindstorms NXT Community The NXT Step The NXT STEP Blog brings together news and information related to the LEGO Mindstorms NXT system. BNXT Lego Community / Market / MOCs LUGNET, the worlds largest online Lego community.  If you want info on Lego, go there. RTL Toronto. The local Robotics /...
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Books

Building Robots with Lego Mindstorms

A while back, I received an email from Mario Ferrari informing me that he was going to send copy of his new book, Building Robots with Lego Mindstorms.  When I received the book, I immediately cracked it open and skimmed all the sections.  My first reaction was that the book being some 600 pages in length contained a plethora of information similar to that of other Lego Mindstorms books written by other Lugnet members. ...
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Books

Official Guide to Lego Mindstorms

The Official Guide to Lego Mindstorms by Johnathen Knudsen.  I found reading this book to be quite informative.  I have spent much of my time building and programming Lego Mindstorms.  The book covered this area from the basics right up to higher level development.  There were many pictures, step-by-step instructions and code samples as well.  I learned a few tricks from the code samples in this book.
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Books

10 Cool Lego Mindstorms Ultimate Builders Projects

Having participated in the creation of this book, I have to admit some bias to the review. 10 Cool Lego Mindstorms Ultimate Builders Projects contains 10 original Lego Mindstorms creations.  The model I submitted is DominoBot. It was a great challenge to build and create the building instructions for this model.  The book contains step-by-step instructions on how to build each of the 10 robots.  The book should challenge the intermediate enthusiast and contains...
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Other

Chameleon 1.1 / MapServer JavaScript Dynamic Tree Legend Widget

A while back, I was given a challenge to integrate a dynamic JavaScript-based legend into Chameleon  The following information is my take on creating a Widget for use in a MapServer / Chameleon implementation.  If you are not sure what Chameleon and MapServer are, then the following info may be of little use to you.  To learn about these online mapping tools, you can find more at the DM Solutions – MapTools...
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DYI, Mods, Hacks & Stuff

LEGO X50/X50v Cradle

I am an AFOL (Adult Fan of Lego) and specialize in building and programming Lego robots (look at the rest of this site for more of my robots). I use (or play) with Lego Technic / Mindstorms for the most part. I got an idea to see what I could come up with for a cradle for my Axim. Below is my first run at a Lego Dell Axim X50 / X50v cradle. It...
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Autonomous

Walker

I managed to re-work an old design. By using 2 motors and drive mechanisms, I was able to get the walker to steer. The key to steering is the syncro mechanism that I setup. It uses 2 touch sensors – 1 on each of the left and right center drive legs. Using NQC, the code will monitor the timing of the rotations. It goes something like this: When sensor #1 is triggered – is...
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