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.

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How can I connect an external speaker to a Lego NXT? [migrated]

How could I connect an external speaker to an NXT like the one in this video?
sam's user avatar
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How to connect NXT brick to EV3 programming software for mac (2024) [duplicate]

I have an NXT brick (most likely from 2006 based on a newspaper clipping I found in the box) that I want to program the NXT brick with the EV3 programming software (the newer version of the EV3 app ...
Time77's user avatar
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2 votes
1 answer
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Trouble connecting NXT 2.0 block to Mindstorms Home EV3 software on Mac

My son has finally shown an interest in Mindstorms and we are trying to use an NXT block with my 2015 Macbook Pro (latest OS) running the EV3 Mindstorms home edition software. I have read in many ...
Jerry Davies's user avatar
2 votes
0 answers
149 views

Problem to connect my NXT to Bluetooth. everything else run fine

I use Windows 11 (64 bit). NXT sw v2.1, NXT firmware 1.31. I have reinstalled these several times, without success. Everything seems to work fine except to connect via Bluetooth, that fails most of ...
Mikael Jakobsson's user avatar
1 vote
1 answer
198 views

Is there a guide on how to code custom blocks for NXT?

The answer to a previous question pointed to "custom blocks for NXT". I am not talking about creating "My Blocks" in the "Custom Palette", but code blocks that can be ...
algiogia's user avatar
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NXT - Mirror motor rotation

I'm trying to make a program in NXT 2.0 that mirrors the (manual) movements of one motor to another. I managed to start motor B running in the right direction but I am having trouble controlling the ...
algiogia's user avatar
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NXT Sensors/Motors not working

I went back to using the NXT brick after two years and I'm having some problems: Motors do not respond to degrees or rotations; Ultrasonic Sensor and Color Sensor are not working; Touch Sensor is ok; ...
Lucas Basso's user avatar
4 votes
1 answer
113 views

Kick a LEGO MINDSTORMS NXT p-Brick out of SAM-BA mode without writing new firmware?

I recently received a LEGO MINDSTORMS NXT p-Brick which, surprisingly, still has the original retail V1.01 firmware on it. My goal is to extract its current firmware image to a file while maintaining ...
AlwaysLearning's user avatar
2 votes
0 answers
175 views

NXT 2.1 And Windows 10 V2004

Has anyone had any luck installing the NXT 2.1 software onto a Windows 10 PC running V2004 19041.1052 build? I keep getting an error: This publisher has been blocked from running software on your PC. ...
jen's user avatar
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1 answer
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Connecting EV3 with older motors using conversion cable

I'd like to use an EV3 brick to power an old 9V motor (74569). To do so I'm going to get one of these conversion cables (x1676) but I'm not 100% sure if it's possible to control the speed of the motor ...
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How do I sync audio and movement on my NXT 2.0?

How do I sync audio and movement with my NXT 2.0? I'm building an animatronic head and I can't find a good way to sync it with external audio because the internal speaker is too quiet.
ceehkiberki965's user avatar
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Program just stops motors and won't move

I'm trying to make a program in the NXT software that turns on the motors unlimited, then waits until something is less than 30 cm, stops the motors, turns to the left 30 degrees and saves the value ...
what's user avatar
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5 votes
1 answer
264 views

Lego RCX to NXT converter cables not working properly with EV3

I recently got some of these cables(see picture below) to control an old RCX motor. Some things to note before reading on. I tried both the medium and large motor blocks and played around with power, ...
ElectronicsNoob's user avatar
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1 answer
246 views

Mindstorm Nxt Brick not starting

My Nxt Brick is not starting at all after sitting idle for an year. I tried all options like resetting, re-installing the software etc. The laptop doesn't even show up Lego in Device Manager. Any ...
Anirudh Phadke's user avatar
1 vote
3 answers
445 views

Lego Mindstorms NXT 2.0 brick is not working

Recently, I tried to get my old NXT 2.0 brick fixed. Everything seemed to point to the clicking brick problem, but it turns out not to be the only thing, the brick was also getting hot. After ...
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NXT software on Windows 10 isn't detecting NXT brick

I have the Mindstorms NXT software and brick (CPU), and I worked with them a long time ago running NXT on a Windows XP. Now, I would like to retrieve the brick to teach my son, and I installed the NXT ...
Juan Roldan Parra's user avatar
2 votes
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Why won't my Lego Mindstorms NXT stop beeping/clicking and work properly? [duplicate]

I was trying to update the firmware on my NXT but suddenly the screen went blank and it started beeping. I unplugged and re-plugged my USB and a notification came up saying that the device ...
Lukas's user avatar
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4 votes
3 answers
2k views

Online link to the LEGO NXT firmware (v1.31) source code or IAR ARM LEGO development tools?

I am looking for the source code to latest NXT firmware (v1.31). I found the binary image is on LEGO site: https://www.lego.com/en-us/themes/mindstorms/downloads, but no links to firmware source code ...
bitbob's user avatar
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3 votes
1 answer
259 views

Mindstorms NXT NXC RemoteStopProgram fails compilation

I have two NXT bricks connected and they work together using Bluetooth, sending messages between the two works. The master NXT will start a program on the slave NXT with the RemoteStartProgram ...
Paul's user avatar
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Where to start with a custom firmware for the NXT

In the process of hardware hacking with my NXT 2.0 I Found no easy way to connect the device as a USB storage device. Is there a specification that states how the NXT interacts over USB, or should I ...
Ruhi Batool's user avatar
4 votes
1 answer
64 views

Unable to save NXT program

I pulled out my NXT recently to tinker around with it. After reconstructing one of the suggested builds, I was writing a small program for it. About halfway through, I needed to leave my work, so I ...
Brandon_J's user avatar
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3 votes
2 answers
159 views

Does repeated flashing cause degradation NXT

I have a Lego Mindstorms NXT 2.0, which I'm tinkering around with, writing a custom firmware for. I just want to know if repeated flashing could damage the flash memory.
Ruhi Batool's user avatar
4 votes
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766 views

Lego Mindstorms NXT 2.0 Not turning on

I have a Lego Mindstorms NXT 2.0, which worked well for a couple of years. However, after the last few weeks, it seems to not boot up. I took it apart, and noticed it seems to have a different ...
Ruhi Batool's user avatar
4 votes
1 answer
339 views

Can I use Microsoft Makecode to programme Lego NXT bricks?

As a teacher, I only have access to Chromebooks and I cannot (IT will not let me) use Linux on them. I'm trying to use a text-based coding language to programme NXTs. I would use ROBOTC, but I cannot ...
mrg4541's user avatar
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1 answer
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Where do I get PDF instructions for LEGO builds that were only in software, like NXT as of 2019?

LEGO Mindstorms NXT 2.0 (8547) stored almost all of its build instructions in the associated software. LEGO no longer supports the software for modern macOS versions. I can not find build instructions ...
user1332148's user avatar
8 votes
3 answers
5k views

Does LEGO no longer support NXT 2.0 at all?

I am running Mac OS X 10.15 (Catalina) and the EV3 software can't detect my NXT 2.0 using USB.
user1332148's user avatar
1 vote
0 answers
236 views

NXT not updating, "Cannot locate NXT device to download firmware!"

I am using a Bluetooth connection trying to update firmware from 1.05 to 1.31 and it displays the message: Cannot locate NXT device to download firmware! My NXT works fine other than that. I got ...
funnyrock77's user avatar
2 votes
1 answer
312 views

how to send direct command to ev3 brick

I am new to ev3 python but am working on a project. I was reading about NXT-python that " It works by sending the direct commands detailed in LEGO's "Blue-tooth Development Kit" to the NXT brick" I ...
user11770's user avatar
3 votes
1 answer
67 views

MindSqualls - can I connect more than one NXT brick using USB?

To access my NXT brick connected via USB with the MindSqualls library, I do the following: var brick = new McNxtBrick(NxtCommLinkType.USB, 0); The 0 is serialPortNr. If I were to buy a second NXT ...
Henrik Berg's user avatar
2 votes
1 answer
109 views

Rearing off to the left without telling it to

I've started to build a robot, but when it drives it veers off to the left even though I'm just telling it to go straight. I think I need to do something to the motors but I don't know what or how. I'...
Donna Walters's user avatar
1 vote
1 answer
642 views

How to connect an NXT brick to the LEGO programmer application on an iPad?

Can you connect a NXT brick to an iPad via either USB cable or Bluetooth? For me neither seem to work even though the EV3 brick (and the LEGO programmer application) should be backwards compatible. ...
Jenita Bos's user avatar
2 votes
1 answer
385 views

Where's the iNXTG app for programming NXT from iPad?

I'm trying to find the old iNXTG to program NXT bricks via iPad but it is no longer available in the Apple Store. Does anyone know if there exists an archive for programs like that? The problem is ...
Jenita Bos's user avatar
3 votes
2 answers
1k views

NXT Sensors not working

I'm looking for advice. I pulled my Mindstorms 8547 kit out of storage and started to play with it after several years of inactivity. I found that the Color Sensor, the Ultra Sonic Sensor, and the ...
Paul's user avatar
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1 vote
1 answer
271 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 ...
HelpmePlz's user avatar
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1 answer
465 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 ...
HelpmePlz's user avatar
3 votes
1 answer
894 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 ...
user10582's user avatar
2 votes
3 answers
1k views

How to retrieve a deleted program file from the lego NXT

I have been programming a complex file for my Lego Mindstorms 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 ...
Banana999's user avatar
1 vote
1 answer
116 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 ...
Kacper Reicher's user avatar
3 votes
3 answers
159 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'...
huvarda's user avatar
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1 vote
2 answers
1k 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 ...
Nathan's user avatar
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0 votes
1 answer
317 views

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

I have 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 ...
Al Bulg's user avatar
3 votes
2 answers
136 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 ...
Derek Andrews's user avatar
2 votes
2 answers
857 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 ...
Matt Sutton's user avatar
3 votes
1 answer
1k 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 ...
brightstar's user avatar
3 votes
0 answers
736 views

Why can't I install the NXT software on macOS High Sierra?

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 ...
legomyleg's user avatar
2 votes
1 answer
931 views

Lego Mindstorms education NXT 9797 software for a MacBook Air [duplicate]

Where can I find Mac OS compatible software for the Lego Mindstorms Education NXT Base set (9797)?
Jim's user avatar
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5 votes
2 answers
362 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, and now I'm wondering how I'm ...
user3667576's user avatar
6 votes
2 answers
847 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 ...
Holger's user avatar
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10 votes
1 answer
1k 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 ...
ec-m's user avatar
  • 211
3 votes
1 answer
821 views

LEGO EV3 on Chromebooks not recognizing NXT bricks

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 ...
Red's user avatar
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