Free Lego NXT MindStorms NXT-G Robotics Challenges Tutorials At the request of Tasmanian teachers Miss Clare Neilson and recently retired Mrs. Juanita Airey, activities using Lego's NXT 1 MindStorms Robots have been developed for use in School-based 2-hour sessions. Some, but not all, will work with the new NXT 2 kit (click here for more information). Challenges with an "M" after the challenge number include mentor notes. First Challenge (NXT 1) - Building Robot 1.1 "TuftsBot" - click here. First Challenge (NXT 2) - Building Robot 1.2 "MiniBot" - click here. First Challenge (Apple videos) - Building Robot 1.2 "MiniBot" - click here. Challenge 2M - Teaching your Robot (NXT 1 & NXT 2) - click here. Challenge 2M (Apple videos) - Teaching your Robot (NXT 1 & NXT 2) - click here. Challenge 4M - Teaching your Robot to move, smile and speak (NXT1 & NXT 2) - click here. Challenge 4M (Apple videos) - Teaching your Robot to move, smile and speak (NXT1 & NXT 2) - click here. Challenge 10 - Building Robot 2 "DomaBot" (NXT 1 & NXT 2) - click here.
Gears Tutorial A complete tutorial on Lego gears, their advantages and disadvantages as well as the basic laws of mechanics that apply to them. Updated on February 19th 2010. When I describe my constructions or ideas, and when I explain their functionality, I usually assume that readers have the basic understanding of mechanics and of the rules that apply to gears. This assumption, it seems, is sometimes wrong. Even though it may appear frustrating at times, I see no real reason to ignore the people who have not yet learnt how the gears work, nor to deny them the pleasure of building with Lego Technic. Having considered that, I prepared a document in which I’ve attempted to cover my entire knowledge on gears in an accessible manner. Contents: Introduction to gearsBasic rulesTypes of gearsGear ratiosEfficiencyBacklashAppendixes 1. What do we need gears for? Gears can be obviously used with all kinds of drive, be it an electric motor, a manual crank, a wind turbine, a mill wheel, whatever. 2. 3. 4. 5. 6.
Hacking the LEGO NXT If you are a millionaire and able to buy a LEGO Mindstorms NXT, you may find kind of difficult to hack it or create homemade sensors. I believe you already noticed the particular jack that comes with the NXT. It looks like a telephone jack, but the latch is located in one side, making difficult to connect any other cable. That is not a big problem; filling off the latch from a 6-wires telephone connector (RJ-12) may do the job. Once I was able to connect a telephone cable to the NXT, I started to test the signals. Here is what I found: Holding the connector as the picture shows. White wire - Used with the black wire, this pin provides power to the motor. Tutorial: Hopper NXT Hopper This little jumping robot jumps around on one foot with the help of a walking frame. Youtube viewers collectively suggested it reminded them of an old lady (I can’t blame them). Requirements: One NXT 1.0 set (8527) Building: Follow the building instruction steps by clicking the picture below. Click to go to the instructions Programming: Click to download the NXT-G Program for the Hopper. More pictures: The Hopper walks by sequentially raising and lowering the walking frame. Video:
UrbiForge UrbiOpenSourceContestProjects/2-high 1 - Overview For French speakers, the entire project is described in French here. NXT Tower Defense is a system that lets you build, develop and play with your own robot. This robot is designed with Lego Mindstorm NXT for hardware and uses URBI, Qt and Opencv for the software. This means that this robot can be used by anyone who has some knowledge of development - and Lego :-)- and the desire to learn about robotics and especially URBI. This robot is a launching projectile that can detect, track and shoot objects like Picoo-z or AR Drone. This project comes with a version ready to use for testing and a developer version to custom the system. Note : This project has been tested under virtualized Windows 7, urbi sdk 2.1 (for compatibility with Mindstorm NXT), opencv 2.0 and Qt 4.7.1. Video Photos Good to know There is a page dedicated to questions on the forum www.gostai.com Become a fan of NXT Tower Defense on Facebook :-) 2 - Ready to Use Lego Digital Designer 3 - Gameplay 4 - Source Code
SORT3R, an EV3 brick sorter SORT3R, an EV3 brick sorter As I have a long record of building color sorters... for RCX, NXT and now for EV3! SORT3R can be built with a single 31313 EV3 set. Well, almost! Improving SORT3R reliability Video Link to YouTube video Building instructions EV3 project Tilted Twister Note: Tilted Twister is designed for LEGO Mindstorms NXT 1.0 (8527) Getting started Read all of this page. Run the calibration program. Building instructions The building instructions were created with LDraw, MLCad, LDGLite and LPub Cut out a piece of thin cardboard 70 x 70 mm and cut out the corners 8 x 15 mm. Connect the wiring as follows: 1 - Touch sensor 2 - Light sensor or HiTechnic color sensor 3 - Ultrasonic sensor A - Turntable motor B - Tilter arm motor C - Light/color sensor motor Rubik's cube Unfortunately the yellow and the white colors of a standard Rubik's cube gives the same readings from the light sensor. Important The position of the light/color sensor is crucial. Calibration Before you let the robot solve a scrambled cube you should calibrate it. Cube tester Run this program to check if the colors of a cube can be sorted out using the light sensor. Color tester This program shows the current light sensor value. Downloading programs to the brick tiltedtwister.zip Source code
Proceso de inscripción de FIRST LEGO League El proceso de Registro en FLL es el siguiente: Una vez recibido el pago y copia de la ficha de depósito, se les asignará un número de equipo y se le da acceso al Forum electrónico de discusión en el que puede intercambiar puntos de vista y hacer preguntas a otros equipos de todo el mundo. Asi mismo se les enviará el set del Reto al domicilio establecido en el Formulario de Registro y se les dará de alta en la lista de correos para las circulares. Todos los equipos registrados en FLL México deberán participar en el Torneo Regional correspondiente o mas cercano a su localidad. La Cuota de Inscripción a cada Torneo Regional no excederá $600.00 pesos M.N. por equipo. Para clasificar al torneo nacional, deberán participar en su torneo correspondiente con zona geográfica. Fecha de torneos regionales Los operadores de los Torneos Regionales solamente recibirán aquellos equipos registrados oficialmente. Los Ganadores de los Premios:
untitled My name is Krystian Majewski. I study design in Cologne, Germany. Here, you will find projects I have created with the LEGO Mindstorms NXT set. You can contact me at kryst(at)ceeu.de. JennToo Radar The JennToo Radar is an improvement of the Tribot Radar made for Brian Davis'JennToo robot. Tribot Radar With the Tribot Radar your Tribot scans the environment using the ultrasonic sensor and displays the collected data on the screen. Hacking the Lego NXT - Part 1 Before we start with this slightly tangential series of posts, let me give a word of advice to those who saw the word “hacking” in the title and immediately thought, “HE IS GOING TO HACK INTO SECRET FILES!”. Firstly, any democracy should not have secret files, but that’s for another post, and secondly, “hacking” is what I define as a skillset: the ability to alter the main function of something, be it hardware or software, to suit what you want to do with it. Henry Dyer (@Direthoughts) did a nice piece of hacking, for example, on those Apple Store iPads. It has been the media convincing people that hacking is bad, when in fact, only a small proportion hack with malicious intent. Taking open-source code and altering it is software hacking; building a buggy out of sheet aluminium and plastic is a form of hardware hacking, and what I am going to describe here is a mere alternate manifestation of that. So, lets start on this project. Yes, you heard me. Repeat this process for all 6 wires.
NXT Tutorial This tutorial for LEGO Mindstorms NXT is divided in two sections. The “Essentials” are things every NXT programmer should know. Some of these movies have exercises directly under them. It’s important to do these exercises, not just assume you “get it.” The “Advanced” section is for reference purposes. These lessons assume you have a basic robot with two drive motors, a touch sensor and a light sensor. If you need to run this tutorial at a location with poor internet service, you can download a special copy here. This tutorial was designed, and maintained by Dale Yocum, Engineering Program Director at Catlin Gabel School. LEGO®, the LEGO logo, Mindstorms and the Mindstorms logo are trademarks of the LEGO Group, which did not create and does not sponsor or endorse this tutorial.