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.

learn more… | top users | synonyms

0
votes
0answers
25 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?
3
votes
0answers
150 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 ...
0
votes
1answer
90 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 ...
3
votes
1answer
40 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 ...
0
votes
0answers
18 views

how to assign values for 2d array in bricxCC?

I use BricxCC to program my NXT robot, and the problem is that I can't figure out how to assign value to 2d array unit after array was initialized. the code looks like this: int map[8][11]= { ...
1
vote
1answer
123 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 ...
0
votes
2answers
150 views

LEGO Mindstorms NXT - bossa driver prevents firmware upgrade

First of all, this may sound like a duplicate post. But, my Mindstorms NXT 2.0 has been having the "Clicking Brick Syndrome". I have been told that uninstalling the bossa driver then unplugging and ...
0
votes
1answer
23 views

NXT 2.0 speakers not functioning

I have the NXT 2.0 set, and have owned it for about 5 years now. About a week ago, the sound coming from the speaker started sounding distorted, and eventually stopped working. That time I restored ...
1
vote
1answer
37 views

NXT Display is messed up

I have an NXT 1.0 and the LCD display only displays noise. Anyone know how to get one replaced or repaired? Thanks
2
votes
3answers
401 views

El Capitan OS X and Nxt v2

I am running El Capitan OS x, and I have a nxt v2 brick. Is there anyway I use them together? The nxt installer crashes and the ev3 software will not update the firmware on the brick. Do I have any ...
3
votes
1answer
55 views

LabView Mindstorms - What does speed in seconds mean?

I'm trying to set a motor to spin exactly at 60rpm, and I'm using LabView for Lego Mindstorms. However, when reading the documentation for the move motor block, it says this: Power/Speed ...
1
vote
0answers
43 views

Is there any way to find misplaced bricks in LEGO NXT Programming?

I am working on a Mindstorms NXT project. Due to annoying bug (cannot find terminal hotpoint thingy) I can't delete a specific block, and if I do so, part of the program will be cut off from the main ...
1
vote
0answers
37 views

How do you display EV3-G images properly on an NXT screen? [closed]

When I use the EV3 programming software to put an image on the screen of an nxt, it cuts off 3/4 of the image. How can I stop this from happening?
1
vote
1answer
105 views

“file error!” appears on nxt why?

I tried to upload this program to my NXT, but for some reason I am not able to run it properly as it terminated with the message file error!. No idea why. I am trying to read a .txt file into a char ...
3
votes
1answer
46 views

fgetc() moves pointer one step forward

I have opened a file using handle = fopen("rw.txt"). The file consist of 3 values which is separated with spaces ex: 12 23 34 using isspace(fgetc(handle)) Problem here is that fgetc() increments ...
3
votes
1answer
82 views

identifier expected?

What identifier is expected here? #import "rw.txt" rw task main() { if(rw != NULL) { OnRev(OUT_A,75); Wait(100); } } Error: # Error: Identifier expected I don't seem ...
2
votes
1answer
106 views

No response when controlling the Mindstorms EV3 brick over Bluetooth

I am trying to control the EV3 using direct commands over a Bluetooth connection. There are no issues pairing the brick with a PC or phone, and opening the serial connection works fine, but sending a ...
0
votes
0answers
12 views

NXT error code 10003 on startup [duplicate]

I run Mac OSX Mountain Lion on my computer. When I got my new computer, I had to reinstall Mindstorms NXT because my disk was scratched and therefore corrupted, I had to download it from the ...
2
votes
1answer
51 views

I need an NXT motor adapter

I'm trying to get an NXT motor adapter to this that I'm getting: If you don't recognize this, the parameters said : 80mm 2000 ±10% RPM 28.89 CFM Rifle 20.9 dBA Please tell me what this is ...
3
votes
1answer
84 views

How to measure green/blue reflected light on EV3?

As I know there is no way to turn on green/blue reflected light on EV3 color sensor. Is there a way to do it using NXT color sensor and EV3 controller? Or the only way is to use NXT controller ...
3
votes
0answers
27 views

Using Dexter WiFi Sensor with Robot C

My wife bought me a Mindstorms NXT system a few years ago and I bought a Dexter WiFi sensor (http://www.dexterindustries.com/manual/wifi/) for it, By the time I got a chance to work with it, I found ...
2
votes
1answer
82 views

Control two Lego NXTs with an Arduino

I'm new here and also very noob with the Arduino. I have a basic knowledge in Java and some more in C# so code isn't a problem. I can learn it easily. I have a project assigned. I would like to know ...
5
votes
2answers
142 views

Mindstorms Software Versions

Here is what I have: Site licences for Mindstorms Software 1.0 (NXT) and EV3. An upgrade to Version 2.0 for the NXT 9 NXT kits 4 EV3 kits 2 Renewable Energy Kits and Temperature sensors My ...
2
votes
1answer
76 views

Absolute Turning Motor in NXC

How can I turn my motor to 123 degrees, not for 123 degrees? I tried the PosRegSetAngle("output", "angle") command and didn't work. Documentation for PosRegSetAngle
6
votes
1answer
66 views

What is NXT-G number format?

We've been following this tutorial to connect a NXT 1.0 brick to a PC via Bluetooth. We've been able to set up the communication, send and receive data in ASCII format. However, whenever we try to ...
1
vote
0answers
36 views

Block Platform parameter is not instanciated

I used Simulink to write a program for LEGO Midstorms NXT. I can post the design if needed. The problem is that when I want to run it on hardware, it gives the following error: Lego mindstorms NXT ...
3
votes
2answers
126 views

NXT Motors curving to the right

The NXT motors have been curving to the right by about 10-20 degrees. We have checked the program, no curves. We have checked the wiring, but it is also plugged in fine.
1
vote
1answer
163 views

Raw RGB data to Color?

I'm trying to convert the raw RGB values from a Colour Sensor into HSL but it doesn't seem to be working: R = rgbn[INPUT_RED]; G = rgbn[INPUT_GREEN]; B = rgbn[INPUT_BLUE]; var_R = ( R/255 ); var_G = ...
2
votes
3answers
823 views

Programming NXT color sensor with NXC?

Currently I am working Lego robot that solves 2x2x2 Rubik's cube. I am programming Lego Mindstorms NXT 2.0 color sensor in BricxCC. I already have RGB data with the command ReadSensorColorRaw. I ...
0
votes
1answer
90 views

How to switch an NXT sensor port by a motor port? [duplicate]

Me and my partner are finishing up our robot for the RobotCup and we desperately need one more motor port. We will only use 3 sensor ports, so my question was if there was even the slight chance that ...
1
vote
2answers
45 views

Bluetooth Conection PC-NXT1-NXT2

I want to connect, via Bluetooth, one PC with a NXT brick and then have that NXT communicate with another NXT. So I send a message from the PC to NXT1 and have NXT1 send a message to NXT2. Is this ...
2
votes
1answer
137 views

Bluetooth communication between computer and nxt using RobotC

I'm thinking starting a project involving controlling the movement of a NXT robot from the PC using RobotC. Is it possible? Does anyone have a simple code solution?
4
votes
0answers
113 views

PC To NXT Brick via Bluetooth

We have a fully-working java programme which can connect to another computer and can send messages from this(both sides run java and we used SPP Server and Client), however when trying to connect to ...
3
votes
1answer
158 views

Connection between two NXT bricks

Is it possible send information from BrickNXT_A to BrickNXTB_B? For example I have a touch sensor connected to IN_1 of Brick_A and I want send the result of the sensor status (1 or 0) to Brick_B. If ...
2
votes
0answers
51 views

How to Return a Motor to a specific value [duplicate]

I've created an arm robot using Mindstrom NXT that can find an object pick it up and move it to an new and random location. My problem is that I would like for the motor to, at the end of the program, ...
3
votes
2answers
255 views

How to turn the NXT at an angle with NXC

How can I program, with NXC, a Lego NXT to turn a specific angle? I've tried using wait() but the problem isn't solved. Can I use RotateMotor()? What parameters should I use? For example if I want ...
2
votes
2answers
106 views

I need a block that can combine a movement program with NXTbee radio

I am a student. I am working on a science project using LEGO Mindstorms robots enhanced with NXTbees creating a mesh network. My engineering mentor has me using LabVIEW. I am trying to find a block ...
1
vote
0answers
74 views

Use of Mindsensors IMU with Labview

I thought someone could help me with a the Mindsensors AbsoluteIMU ACG and its use with the Lego Mindstorms NXT. Is it possible to use it with and get data out of it?
5
votes
2answers
1k views

Programming Mindstorms on a chromebook

I know there is no official way to program NXT/EV3 on a Chromebook. But a Chromebook can have Ubuntu installed via Crouton in developer mode. So, is there a relatively painless way to program ...
0
votes
0answers
47 views

Linking two blocks [duplicate]

I am in a contest and would like to use one Mindstorm block to control another. I am new at this. We are in invention section of the contest and trying to develop a pipe laying machine. Basically I ...
4
votes
1answer
132 views

Can I Conect 2 NXTs so that they work together?

I am building up a robot and I want to use 2 NXT connected together because I need more than 3 ports A,B,C. So my question here is: When I write the code, is there anything different I have to do? ...
0
votes
0answers
25 views

Programming sensor to follow light [duplicate]

Cannot get sensor to follow light on other moving robot.
3
votes
1answer
359 views

How to program light sensor to follow moving light using NXT

Cannot figure out how to simply program Lego Mindstorm NXT robot to follow another moving robot that has a bright LED light attached to it. Currently my programme looks like this:
3
votes
1answer
60 views

NXT brick not executing programs correctly

I have an issue that I am hoping someone might be able to resolve: We're using Mindstorms in the classroom as part of a STEM program and have one NXT brick that wont execute programs correctly. The ...
2
votes
1answer
73 views

NXT shuts down USB on Mac after connecting motors

After successfully connecting our NXT to my Macbook Air and upgrading firmware to 1.31 we built our first robot. We plugged in the motors to ports A, B & C and now we get an Error stating that USB ...
1
vote
1answer
131 views

Is it possible to use a LEGO NXT ultrasonic sensor for a LEGO train crossing?

I was looking at LEGO NXT components, and I found the ultrasonic sensor. I was wondering that if I put off to the side of the track, the nose of my train would activate the sensor, thus operating the ...
4
votes
2answers
133 views

Faulty NXT Motor

I have a motor that prevents the program from running. It simply allows a few slow movements forward with stops in between. It seems very stiff to rotate manually. Any way I can repair this motor?
6
votes
1answer
261 views

Convert 3rd party NXT programming language code to NXT-G program?

Is there a way to convert code from one or more 3rd party programming languages used for programming the NXT into a program that can be loaded up in NXT-G? If not, do any text-based languages provide ...
4
votes
1answer
99 views

How can I tell if my NXT motor is faulty?

I pulled my old Mindstorms NXT out of storage (it's been there for a few years). After patching together a test robot, I noticed that my motors behave strangely. At first, one of the motors did not ...
5
votes
1answer
2k views

How do I get the Mindstorm EV3 software to recognize an NXT brick via Bluetooth?

I'm trying to program my NXT brick via the EV3 software over a Bluetooth connection. I can connect it via USB (although that too failed initially but has since resolved; not sure why) but I'd really ...