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Questions tagged [nxt]

A programmable robotics brick released by the LEGO company in late July 2006 and uses Technic connectors. This was preceded by the original RCX brick, and succeeded by the EV3 brick.

1
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1answer
64 views

Program for NXT golf robot not looping properly

This is what I made: I will put this robot straight in line with the ball I have to make this robot go forward and once it reaches the ball, I have to make it stop and hit the ball with the swing ...
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1answer
44 views

How could I make a golf robot from a LEGO NXT kit?

I want to make a golf robot. It will be placed straight in line with the ball. It will approach the ball and swing. The part where I get confused is how to get it to swing in a left-right motion when ...
3
votes
1answer
32 views

Connecting 2 NXT bricks in order to control motors and sensors from one brick

Is it possible to connect two bricks using a cable (connecting port 4 to port 4) , and then have both programs run by only pressing one button? I want the sensors attached to one brick affect the ...
2
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3answers
94 views

How to retrieve a deleted program file from the lego NXT

I have been programming a complex file for my lego NXT. I accidentally deleted my file from the PC, but it is still available on my NXT brick. Is there any way that I can retrieve the file from my NXT ...
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1answer
62 views

How to send through Bluetooth motor angle position and mirror that position on another motor?

I've built a steering wheel that checks the servomotor position using NXC function - MotorRotationCount(). Now, I want to send that position to second brick using Bluetooth and apply that servomotor ...
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3answers
97 views

NXT motors spin when in air but stop on ground

I have a car that I made with 2 motors in the back and one motor in the front. The motors spin fine in the air but when I put it on the ground to test my program the motors stop. The robot itself isn'...
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2answers
124 views

How to flash a LEGO Mindstorms brick and program it in another language

I have a basic LEGO Mindstorms kit which I wanted to use for testing a very simple object-avoidance project. I am trying to find a relatively simple way to flash the brick and upload scripts to it ...
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1answer
79 views

Help with Multiple Motors/ Intelligent Bricks and coding/ programming/ daisy chaining

Built the accompanying robot earlier in the week. I have a challenge where the robot needs to find white/ black bricks then store them on a tray and then travel over to another robot and transfer the ...
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2answers
60 views

Angular resolution of NXT motor

I am sure that I read somewhere that the resolution of the motor sensor was 2 degrees, but I can find no mention of this in the NXT Help file. What's more, the motor control block allows the Duration ...
3
votes
2answers
205 views

How to use the ultrasonic sensor on mindstorm NXT

I've been struggling for some time on this. I'm trying to code the robot to move when the distance is above a certain integer and stop when the distance becomes lower than the certain integer. I'm ...
3
votes
1answer
262 views

Which of the LEGO Mindstorms 9797 (NXT Education base set) Software is compatible with Windows 10

I have LEGO Mindstorms NXT 9797 and downloaded the following Windows PC Versions: NXT Edu 2.1F6 PC App ---Education Version NXT Ret 2.0F5 PC App ---Home Version Which one of these are compatible ...
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0answers
159 views

Why can't I install the NXT software?

I just got an Mindstorms EV3 for Christmas, and learned that you can have the NXT communicate with the EV3 in the NXT software. I tried to install the NXT software on my Mac, but all that happens is a ...
2
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1answer
313 views

Lego Mindstorms education NXT 9797 software for a Mac laptop [duplicate]

Where can I find the software for a MacBook Air for the 9797 Lego Mindstorms Education NXT Base set?
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2answers
182 views

How can I program a motor to rotate towards the source of sound?

I have 3 sound sensors and a motor connected to four ports of the same brick. My motor should rotate by some angle towards the highest sound detected by the sensor, how do I write an infinite loop ...
6
votes
1answer
128 views

How to fix the 4.3V output supply of a NXT 2.0?

I have a Mindstorm NXT 2.0 from 2007 (PCB code: 62115.40H) at which the sensors except the simple "Touch sensor" are no longer working. Also the tacho-signal of the motors do no longer work. (The ...
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0answers
460 views

LEGO Mindstorms EV3: Camera recommendation for lane tracking

I am planning to build an autonomous car in LEGO Mindstorms that will use ultrasonic or infrared sensors for collision avoidance and in the future also a camera for line tracking. I am now wondering ...
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1answer
396 views

Lego Mindstorms EV3: programming language recommendation

I am planning to build an autonomous car in LEGO Mindstorms that will use ultrasonic or infrared sensors and in the future also a camera for line tracking. Currently I construct my programs using the ...
4
votes
1answer
270 views

LEGO EV3 on Chromebooks

I teach two LEGO robotics classes in middle school and in one of my classes I am using EV3 and in the other NXT. I was able to have these classes because of the Chromebook app, but the problem I am ...
2
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2answers
104 views

Uses for tracks in 9648

Has anyone used the Tank tracks (429139) from Lego education set 9648 for anything other than a tank? The tracks are fixed in size, and I've found the application rather limited (driver belt, track) ...
1
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1answer
445 views

How can I connect the LEGO Mindstorms NXT with an iPad?

I'm looking to take advantage of the older generation LEGO Mindstorms NXT robots by developing a companion app for the iPad. I'm aware that non-jailbroken iPads cannot communicate with the robot via ...
2
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0answers
33 views

NXT Mindstorms software glitch

My FLL team was doing some practice programming exercises this morning. One group wrote a program using color sensors, no issue. The next group opened a new program window and attempted to open a ...
1
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1answer
51 views

Run an NXT 2 program that will continue until no power is left in batteries

I want to run an NXT 2 program that will continue until no power is left in batteries. I want it to rotate slowly so that a sculpture can be turned for as long as possible. It seems to go for a few ...
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0answers
35 views

How can I read NXT logfiles?

I used the logfile feature to collect light intensity values. How can I get a view to this data? On the NXT brick I only found: "delete" or "send" but not "show". I tried "send" when I had an USB ...
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2answers
418 views

How to get leJOS to run on macOS Sierra

I am working with an eclipse plugin that requires it to run 32bit Java 6 on it and I do have Java 6 on my computer but when I run the program I get this error. Error: This Java instance does not ...
0
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1answer
48 views

NXT light sensor homework help

Read value from NXT kit using light sensor and show it in the middle of NXT screen. If measured lightness value is less than or equal to 50, right motor will stop and left motor will move with the ...
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1answer
167 views

NXT 1.0 software issue

I am an educator with 33 Mindstorm NXT 1.0 computers. We are a Mac school and are running El Capitan (OS 10.11). Two questions... Is it possible to download the 1.0 software to our Macs? Has there ...
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0answers
25 views

Mindstorms nxt screen not lighting up [duplicate]

I just pickup up this set at a garage sale and put in new batteries. The initial start up noises were indicated and there are clicking noises but the screen is not lighting up. Is it broken or do I ...
1
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0answers
119 views

Reading NXT Touch Sensor with Monobrick Communication Library

In my program, I need to detect if a touch sensor is activated. Here's some of my code: var nxt = new Brick<Sensor, Sensor, Sensor, Sensor>("usb"); nxt.Connection.Open(); nxt.Sensor1 = new ...
4
votes
1answer
200 views

Is code written for NXT bricks compatible with EV3 brick (for Johnny 5 building)?

My son is mad on the robot from Short Circuit (Johnny 5) and I want to build robots with him. We have a copy of Daniele Benedettelli's "Creating Cool Mindstorms NXT Robots" and I was planning to start ...
2
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0answers
283 views

Programming NXT ultrasonic sensor with EV3 software [closed]

How can I program the NXT ultrasonic sensor with EV3 software? When I pick the block for the ultrasonic sensor, it tells me it is not compatible.
3
votes
3answers
5k views

LEGO Mindstorms 9797 (NXT Education base set) Software Download

Where I can download the Software for the LEGO Mindstorms 9797 (NXT Education base set)
3
votes
1answer
269 views

List of parts to buy for to “upgrade” existing Mindstorms NXT 1.0 to Mindstorms EV3 set?

Is there a list of parts available I need to buy to "upgrade" an existing Mindstorms NXT 1.0 (8527) set to a Mindstorms EV3 set?
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0answers
146 views

Unable to turn on NXT. Completely Frozen

I recently downloaded a file on my NXT and when I used it, it didn't work. The motors started to make sounds like they were jammed, one stuck and now it won't even turn on. I tried the reset button ...
2
votes
1answer
686 views

Mindstorm 2.0 & Chromebook?

We have a Mindstorms 2 (not the new one, last gen) and chromebooks... can we use the current software (EV3?) on our old Mindstorm brick? If not, will the old software run on our chromebooks to ...
2
votes
1answer
53 views

NXT Program doesn't do what it's supposed to do

Ok, so I have this automatic gearbox I have made and I have 2 motors and 2 touch sensors I want Motor A to spin forever unless Motor B is turning Motor B should turn around 15 degrees and then brake....
2
votes
1answer
104 views

Absolute position regulation NXC

I am trying to position the LEGO NXT motor exactly at a certain absolute angle: PosRegEnable (OUT_A); PosRegSetAngle (OUT_A, 0); Wait (500); // to read sensor value ...
1
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0answers
100 views

Does LEGO still exchange the Mindstorms NXT bricks with flicker problems? [duplicate]

I'm new here. Does LEGO still exchange the Mindstorms NXT bricks with flicker problems? If not, does anyone know of someone willing to try and fix them for a fee or barter? Many thanks in advance!
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2answers
273 views

Lego NXT Exploitation or Vulnerabilities?

I originally posted this question on the Reverse Engineering site, but there were no answers. They told me to also post this question here. OK, my friends and I have Lego NXT sumo bot competitions for ...
0
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2answers
74 views

Use Bluetooth to access NXT display

I'm planning to use NXT to troll my friends, and I want to show something on the screen that I send to it via Bluetooth. To clarify, I want to type it on a computer in another room. Is there a way to ...
2
votes
1answer
179 views

Java BufferedImage with Lejos NXT: Java Heap Space

I'm trying to write a program for my Lego Mindstorm NXT, the program is simple, drawing some lines and saving the image in a .png file. So, I thought I'd use BufferedImage and use getGraphics to draw ...
2
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0answers
168 views

NXT (NXC) Programs are too slow

I am using Bricx Command Center to write some NXC code for a side project. I am working with the MindSqualls C# Library in Unity and am trying to figure out some ways to use the NXT robots in an event-...
1
vote
1answer
138 views

How can I get a replacement of LEGO NXT Green City Challenge Activity Pack CD-Rom?

I purchased the LEGO Mindstorms NXT Green City Challenge Pack on LEGO many years ago. Now, I wanted to use back this challenge pack, but I found that I've lost the CD Rom and the class that I am using ...
1
vote
1answer
61 views

Interface between keyboard and NXT mindstorm

I want to make an NXT program that handles key presses from a user. First, I'd like a message to display asking the user to choose a key on the keyboard (S or M), and then depending on the chosen key ...
0
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1answer
219 views

LEGO Mindstorm NXT memorize line followed (LeJos)

I made a line follower program with leJos, it works pretty well; and I want to take it to the next level: I want to make it remember the line it followed; works like this: follow the line till the end,...
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2answers
136 views

Don't know how to call this but

I want to make a program that does a few things in a random order: I have this so far: The problem here is... I have set the switch block with the random number block to 3 different programs to run. ...
2
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0answers
83 views

HiTechnic Color Sensor analog

HiTechnic sales support said that HiTechnic color sensor hasn't been manifactured yet. Currently it's out of stock in HiTechnic shop. Is there any analog of this sensor except NXT/EV3 color sensors?
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0answers
518 views

Building instructions: Robot Spider Pen by Ricardo Oliveira

Some time ago I found the following youtube video by Ricardo Oliveira of a small NXT plotter that crawls over a whiteboard. It has two strings that can be shortened through coils and with this, it ...
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2answers
4k views

What software should I install for NXT on OSX El 10.11.2 Capitan?

Sorry, I am brand new to Mindstorms and a bit overwhelmed. I bought an NXT robot over Christmas and am confused what software I should install. I installed the EV3 software. The bluetooth doesn't work,...
4
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2answers
636 views

Programming/running a NXT brick with a dead screen, via PC?

I have a NXT set and the control brick has a dead screen. I tried fixing it (resoldered caps, ribbon rub, etc) to no avail. It's dead. Is there any software that will allow me to program and execute ...
2
votes
1answer
398 views

Clicking Brick Syndrome after using Raspberry Pi

I have a Mindstorms NXT brick, and when switching it on recently, it just started clicking. I have tried many different ways to fix it, but nothing has worked. I've done a soft reset, hard reset (...