Debug logging library in NXC

Debug logging library in NXC

One of the biggest challenges developing programs on the NXT is fixing them when they go wrong. The NXT has a small screen with only 8 lines of text displayed. It’s difficult to know what is causing a program to fail, and to have a record of what a program did. I created this logging(…)

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LEGO Street View Car

LEGO Street View Car

This project is a LEGO version of the Google Street View Car. I’ve been working on this project for the guts of six months now, and you can probably see why! It all started when was playing with the dGPS sensor from Dexter Industries, and realised that if I combined this sensor, with a robust chassis and a camera(…)

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Google Zeitgeist Europe 2011

Google Zeitgeist Europe 2011

I was invited to attend the Google Zeitgeist Europe conference in London in 2011 as a member of the LEGO team displaying “cool” projects for the attendees. It was an amazing event, and I got to meet Prof. Stephen Hawking among other luminaries attending! I brought my LEGO Street View Car (version 1) along with(…)

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leJOS driver for the Dexter dGPS sensor

leJOS driver for the Dexter dGPS sensor

The Dexter Industries dGPS device provides the NXT with access to a real-time GPS sensor. The dGPS is a very useful device is you plan to do any mobile robotics that involve navigation and path-planning. Not only can it tell your robot where it is, but it will also give the direction of travel, speed(…)

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LEGO on the iPad

LEGO on the iPad

I got an iPad for Christmas. Santa really did read my Christmas letter, and I must have been a very good boy, because he delivered a 16GB 3G iPad all wrapped in its Apple-designed-in-Cupertino yummy box. My primary reason for getting one was to use it as a tool for building LEGO. I do most(…)

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Compile LPub4 using XCode on Mac OS X

Compile LPub4 using XCode on Mac OS X

LPub4 is the best (and almost only) tool for generating building instructions for LEGO models. Developed over the years by Kevin Clague it has been used to generate the building instructions for numerous books. I use it for all of my own work. This tutorial will show you how to build the latest release of(…)

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LEGO World Zwolle

LEGO World Zwolle

The Dutch LEGO enthusiasts club hosts an annual LEGO show in Zwolle which is one of the largest in Europe. I joined in the fun with my Queboid robot and autonomous Street Sweeper. It was an amazing weekend of LEGO! [nggallery id=6]

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LEGO Street Sweeper Building Instructions

LEGO Street Sweeper Building Instructions

This LEGO Street Sweeper drives around and avoids obstacles while sweeping your floor (well it tries to anyway). It is a rear-wheel drive and rear wheel steering vehicle. The drive and steering motors are Power Functions, and the NXT controls the motors via a Mindsensors NRLink. The Mindsensors SumoEyes detects obstacles in front of the(…)

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