Paul Klop

Blog about Lego and more

Category: NXT

The Lego Mindstorms NXT creations I made

Lego NXT Axle Sorter

Hi everyone!

 

After sorting out your Lego’s you’re left with a huge pile of axles… I made a solution for that problem 😀

Here’s the Lego NXT Axle Sorter

 

Put you’re axles into the loading container and the robot does the work for you

 

Here are some photos if you’re interested in the design. It’s not much but with a little help of the video you can make something similar I guess.. Otherwise, please leave a comment 😉

 

This thing I used to dispense only one axle at the time into the machine;

video: https://photos.app.goo.gl/u9Qfsc1c2MDyCiVC3

 

NXT Programs: Lego NXT Axle Sorter

If you have any questions, please let me know!

 

 

 

Lego NXT Medi (Medicine Assistant)

A8090139b - kopie

MEDI is a prototype of a robot which helps people to take the correct amount
of medicines at the right moments. It's called MEDI because Medi
is a friendly maiden name and the robot must be friendly to the users.
The android app is made with: http://appinventor.mit.edu
For more information: See the photos

01_Cartoon Medi503_Conveyor MEDI2 04_Units MEDI3 05_Lego NXT Medi Stroomdiagram3


 

MA app (Carriage Return problem)

Today I spend the whole morning to make an app for the Lego Medical Assistance, I’m building. The app must send a file to the robot which the robot can read. The file from the robot needs a Carriage Return (Enter) and Line Feed.

CRLF NXT The NXT only reads numbers which are divided by a Carriage Return and Line Feed.

 

The problem was that Appinventor (http://appinventor.mit.edu/) don’t place a Carriage Return. It places only the Line Feed between two lines when you type in ”/n” (for Line Feed).

LF NXTAppinvenor only place Line Feed.

 

So I tried it a differend way. I make a list called Medicines and tried to save that. And it worked! But the only problem was that it now placed ” around the numbers.

CRLF NXT2It now placed ” around the numbers. But the problem with the Carriage Return is solved.

 

The NXT doesn’t read the ”. So that was another problem. My mother found a solution on the Internet. You must use a replace element for the text in Appinventor. You fill in the file and what you want to replace. I wanted to replace the ” for nothing so at the ”replacement” I place a textbox with noting. And now I have a file which the NXT can read 😀 .

MA CRLF Problem CRLF NXT3

Lego NXT Mind Game (Master Mind)

This Lego NXT Robot plays the game Master Mind with you. You try (in 5 times) to guess the colorcode and then you win the game. On the screen you can see the colors what you have guessed the five times: R=red B=blue Y=yellow G=green. At the right side of the line is a number. The number is the score how many balls are in the right place. 

Lego NXT Race Timer

Race Timer from Lego Mindstorms

Lego Easter Egg Machine V2

Because the first Easter Egg Machine was a great succes I made a new one. 

Lego Easter Egg Machine

This is my first Lego NXT machine on YouTube. 

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