The NXT Jump » sensor

LEGO nxt Line Follow with moving sensor 1.0

admin — Fri, 16 Oct 2009 13:32:56 +0000

Interresting facts with the concept:
- Moving light sensor can replace multiple sensors in theory
- I had to compensate sensor movment backlash from software
- Algorythm 1.0 restricts to the seen top speed
- Corrects course on slide ends, thus it can easily loose path (aka 2 wide samples per second)

Future possible improvements:
- Smaller backlash from hardware
- Automatic backlash calibration
- More intelligent driving algorythm
- Continuous sampling, and path adaptation
- Lost line situation handling

Duration : 0:1:6

Technorati Tags: follow, follower, following, LEGO, light, line, mindstroms, moving, NXT, robot, sensor

NXT compass sensor

admin — Wed, 14 Oct 2009 14:55:24 +0000

Demonstration of the new HiTechnic compass sensor for the NXT, implemented as a south-pointing chariot… on a turntable

Duration : 0:0:38

Technorati Tags: compass, HiTechnic, LEGO, NXT, robot, sensor

LEGO MINDSTORMS NXT SPC: The Self Parking Car

admin — Wed, 14 Oct 2009 14:54:07 +0000

Chapter 8 from the book LEGO MINDSTORMS NXT One Kit Wonders.

This chapter introduces building and programming instructions for a self parking car with a gearing system that allows steering and driving with the front wheels.

The creative minds behind the NXT Step blog (thenxtstep.com) are back with a brand new collection of innovative robots. LEGO MINDSTORMS NXT One Kit Wonders is packed with building and programming instructions for ten exciting robots. The book dives headfirst into the creative thrill of robot-building with models like Grabbot, a robot that finds, grabs, lifts, and moves objects autonomously; Dragster, a super-fast drag racing vehicle; and The Hand, a simple robotic replacement hand to protect you from those dangerous cleanup jobs, like picking up your brother’s dirty gym socks. To further fire your imagination, you’ll also learn how to build a self-parking car model, an M&M sorter, a punchcard reading robot, a bike, and a realistic BobCat.

Step by step building instructions make it simple to construct even the most complex models while the detailed programming instructions teach you how a NXT program really works. All of the models in the book can be built with just the basic NXT Retail kit; there are no extra parts to locate or buy.

Armed with the knowledge you gain from this book, you’ll be inventing your own amazing creations in no time. LEGO MINDSTORMS NXT One Kit Wonders is perfect for readers who have enjoyed the other books in the No Starch LEGO series as well as for builders who want to get starting creating right away. Appropriate for kids (10+), parents, educators, and LEGO fans of all ages.

http://www.amazon.com/LEGO-MINDSTORMS-NXT-One-Kit-Wonders/dp/1593271883/

Duration : 0:0:23

Technorati Tags: 8527, autonomous, LEGO, Mindstorms, NXT, robot, sensor, spc

NXT Sensors

admin — Mon, 12 Oct 2009 17:52:51 +0000

In this lab we learned how to use the sensors and how to program it…!!!

Duration : 0:0:53

Technorati Tags: experiment, lab, LEGO, light, mindstorm, Mindstorms, NXT, sensor, sensors

Lego NXT–Compass Sensor application

admin — Thu, 08 Oct 2009 20:27:55 +0000

I make a digital compass by Lego NXT with Hitechnic Compass sensor. I write NXT-G program with Sine Cosine block and compass sensor block. You can see the pointer in NXT screen, no matter you turn NXT Brick, the pointer in screen always points to the North.

Duration : 0:0:32

Technorati Tags: block, compass, Cosine, HiTechnic, LEGO, NXT, sensor, Sine

LEGO Edu NXT — Robot with two sound sensors

admin — Thu, 08 Oct 2009 20:27:38 +0000

LEGO NXT robot can know the direction of voice by using two sound sensors. The program is written by NXT-G.

Duration : 0:0:55

Technorati Tags: LEGO, Mindstorms, NXT, NXT-G, sensor, sound

Using a MacBook as tilting remote for LEGO MINDSTORMS NXT

admin — Thu, 08 Oct 2009 20:27:28 +0000

In this video we show how to use the gravity sensor of a Apple MacBook Pro in order to remote control a LEGO MINDSTORMS NXT robot. They connect via bluetooth, and the Interactive Geometry Software Cinderella.2 is used as controlling software. It reads the data from the gravity sensor of the MacBook, processes it and then controls the motors of the NXT robot accordingly.

More info about Cinderella at http://cinderella.de, contact: kortenkamp@cinderella.de. Recorded at the University of Education Schwäbisch Gmünd, Germany.

Duration : 0:2:19

Technorati Tags: apple, cinderella, control, geometry, gravity, LEGO, macbook, Mindstorms, NXT, remote, robot, robotics, sensor, software

Lego Mindstorms NXT Brick Sorter 8527

admin — Wed, 07 Oct 2009 00:48:11 +0000

This brick sorting robot can be made from the NXT retail kit.
I have made building instructions for it as well.
Please go to my website for building instructions.
http://www.freewebs.com/laurens200/

Duration : 0:0:26

Technorati Tags: 8527, brick, LEGO, light, machine, Mindstorms, NXT, robot, sensor, sort, sorter, sorting

Lego PF Remote NXT Sensor

admin — Tue, 29 Sep 2009 01:40:31 +0000

This is my version of the PF Remote sensor made by Dave of NXTPrograms.com

I made this version with a differential input giving one four speed directional output to which I attached a rotation sensor, the rest is programming.

I do not have the RCX style rotation sensors so I used my own optical sensor
It is a simple coloured drum and a light sensor, theres some clever tricks to determine direction but because the sensor relies on full rotations it is a little slow to respond hence the 1 second update (& heartbeat tone)

More at Brickshelf:
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=3044386

Rotation Sensor at NXTLOG:
http://us.mindstorms.lego.com/nxtlog/ProjectDisplay.aspx?id=afb1e401-94b7-4060-b779-d6ebafabd100

And the inspiration:
http://www.nxtprograms.com/extra/PF_remote/index.html

Duration : 0:1:7

Technorati Tags: Functions, LEGO, NXT, Optical, Power, remote, Rotation, sensor

First Look Reviews: Lego Mindstorm NXT 2.0

admin — Tue, 29 Sep 2009 01:40:20 +0000

Lego has announced it’s updating its Lego Mindstorms kit with an updated and some would say simplified version of the hugely successful range.

Duration : 0:2:1

Technorati Tags: 2.0, 2009, balls, build, colour, commands, computer, construction, control, create, desktop, develop, fair, hands, hands-on, keyboard, laptop, launch, launcher, LEGO, light, london, machine, megawhat, megawhat.tv, mindstorm, Mindstorms, new, NXT, on, overview, program, review, robot, sensor, toy, update, upload, variety, version, video