Interfacing Android with LEGO NXT

A guy called Richard has developed and interesting way to write things using an Andriod Phone. This is what he wrote:
Following the same theme as a lot of other recent posts, I have been doing a lot of Android development for my IB Computer Science class. Naturally, I continued to tie Android with the NXT. Initially, Bluetooth was not an option for our outdated G1 development phone*, so I developed this simple solution:

Just a simple solution! For when the situation arises that Bluetooth is not an option, or Arduino board interfacing is not available.

*Fortunately, the Bluetooth API's were back-ported for use on 1.6

Richard

FIRST Promotion video

This is a nice video summarizing the idea behind FIRST. The video features actor Morgan Freeman, FIRST founder Dean Kamen and President Obama.

NXT Swarmbot

There's a project by Carnegie Mellon University Robotics Academy (known as creators of the NXT programming language RobotC): swarm robots that are communicating via the NXTBee hardware by dexter Industries.

In the following video, the NXT robots collaborate to group around a leader robot:

More details can be found on the associated entry in the RobotC blog.

Lego Technic Solar Power walking robot

This post is one on a solar powered robot it uses the solar power to power the motor to make the robot walk.

NXT Tic Tac Toe player

Hi
This is a robot from the book "LEGO MINDSTORMS NXT Thinking Robots" by Daniele Benedettelli. More details please visit: http://robotics.benedettelli.com/TRbook.htm
It works very well and as seen in the video is quite intelligent.

NXT Hand Puppet

Very cute and funny :)

GBC#5

This short GBC (or Great Ball Contraption) really caught my attention because of all the cool mechanical solutions and the NXT-Driven robot arm. It's really cool.

(earlier portions of this are here, and are absolutely amazing considering that there is no NXT or electronic intelligence involved. Another great mechanical implementation is here).

Mechnically (and, clearly, in terms of programming) this individual has done an amazing job. But even beyond that, they have a look that inspires.  Here is a user that manages to combine all those facets... and does it really well.

This robot was made by akiyuki.

Lego Liquid Dispenser

Hello,
I was surfing on Youtube looking at some NXT vids and I stumbled upon this NXT liquid dispenser.

Here is a description on how it works:A Lego Mindstorms powered water dispenser. It uses two motors to directly drive he air compressor, and pumps air through the Lego pneumatic rubber tubing into an airtight water container, and water is pushed out from this container through another rubber tubing and exits through a nozzle in the front. The motors are driven whenever the touch sensor is pressed. Features include a push lever, a water container bay, rubber band powered container retainers, a glass pad and more. The NXT run LeJOS and the source code for this program and other programs using different sensors as well as pics can be found here:
http://homebrewcode.blogspot.com/2011/07/mindstorms-liquid-dispenser.html
And a 2.0 version
This one is a little more simple but it shows a different way of using the NXT motor

Enjoy!

3D Printer

Arthur Sacek from Brazil's ZOOM Education for Life, made this very well built and surprisingly precise 3D printing machine is really amazing (and fun to watch)! 
Later he said in a comment reply that he will later show how it works.
He says,  "Soon I will post a "How it works"....and you will see that it is not so hard as you think. I am also a beginner in programming." 

Cake cutting robot

Great looking robot that will cut a cake into as many pieces as you want.  A tin lid acts as the cutter, and some basic math is used to calculate the angle of each piece.


As others have commented, all it needs now is a way to blow out the candles :)