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Questions tagged [mindstorms]

Please use this tag only for general Mindstorms questions and compatibility. If the question refers specifically to the EV3, NXT, or RCX, then use those tags instead.

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1answer
536 views

Does the Lego Mindstorms EV3 software work on macOS High Sierra?

Will there be issues with the software, or will it work properly on macOS High Sierra? My Mac: Retina MacBook Pro 13", Early 2015
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2answers
120 views

Is LEGO mindstorms good for a robot warrior or a small size soccer robot?

I want to know if I can build a warrior or small size soccer robot with LEGO parts? If not, are there any better options?
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1answer
881 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 ...
5
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1answer
308 views

Turn on LEGO Mindstorms robot remotely

I'm thinking to build a robot using either NXT or EV3, then I can control it remotely via WiFi or Bluetooth from my office! It's not difficult to write the controlling codes, but how can I turn the ...
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0answers
296 views

ev3 brick blocked during running a program

I pressed "Run my program" (a simple one), and it is stuck with "mindstorms sound_turn_on" displayed on the screen. The name of my program is sound_turn_on. I am using LabView to program it. Now ...
2
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1answer
264 views

EV3 switch block does not recognize text?

i am using file access to input variables into my programm. text file is something like this: a b c .. on each loop, program access file (using File Access block) and reads a new line "a" or "b" or "...
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2answers
159 views

Programming to get data

I am using EV3 with Linux V1.09 and I am doing a project in which I want to send the sensor data from the EV3 to a remote web server using POST method - is this possible?
4
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1answer
2k views

Is it possible to fix a broken EV3 Port?

I have an EV3 running RobotC version 4.55. The medium motor connected to Port A does not run, but if I connect it to another port (B,C,or D) it works. I tested it manually through the EV3 motor tab ...
1
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1answer
580 views

How can I build a compact EV3 gearbox?

I'm building a sumo bot in EV3 and would like to have both 1:1 and 1:3 gear ratios, with the first being useful for general driving and the second more for pushing other robots. My problem is, I ...
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0answers
27 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 ...
0
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1answer
106 views

Bazooka blast ev3 Mindstorms using Python

I would like to shoot balls with the ev3 Lego robot. How can I code it using Python? Which components do I need for that and which function and motor use ?
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1answer
118 views

System.ArgumentException: Only Sequence Wires can be snapped

I try to open an project on last version of LEGO Mindstorm EV3 Home Edition, but the system shows the next error message 'An unexcpected error has ocurred. Please restart LEGO MINDSTORM EV3.' After ...
2
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1answer
2k views

What is the best option for Mindstorms EV3 remote control for motors?

I have never experimented with remote controlling EV3 but I wonder what is the best way to use it, especially in the case when I'd like to control large and medium motors parallel as well, possibly ...
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1answer
1k views

Moving the motor to certain initial position [duplicate]

I was assisting my child in EV3 missions, specifically, the 3rd mission of TRACK3R, the one where the robot has to grab two tires and put them elsewhere. The mission requires to manipulate the Medium ...
2
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4answers
854 views

Scroll screen in EV3 Home Edition program

I'm using LEGO Mindstorms EV3 Home Edition program to program my robot. Typically a program becomes wider than the screen. However, no horizontal scrollbars appear on screen. So how can I view and ...
3
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1answer
85 views

Does the Mindstorms RCX Input Ports have a Pull-Down Resistor?

Sorry for the strange question. I was wondering if anyone knew anything about the internals of the RCX mindstorms brick. Specifically, does it have a pull-down resistor (if no sensor is connected, ...
4
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1answer
8k views

EV3 Ultrasonic Sensor block is not availible in the Home Edition software

I can't find the ultrasonic sensor block on the programming app on my computer. I am using the Lego Mindstorms EV3 Home Edition.
1
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1answer
161 views

How to instruct EV3 to go a certain place in the room?

I'd like to instruct my LEGO Mindstorms EV3 robot navigate to a defined place in the room ("return home"). With the lack of GPS capabilities, what other possibilities exist? Maybe directing the ...
4
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2answers
940 views

Send variable to EV3 via WiFi

I'm trying to connect my EV3 via Wifi to my Unity game. Is there a simple way to send a command to the EV3? I gave the EV3 a fixed IP and I'm getting the broadcast which the device is sending. So ...
3
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2answers
1k views

LEGO Mindstorms Motor Power

I am working on a project with a LEGO Mindstorms (RCX) motor. For this project, all I need is to spin a motor (43362, http://www.philohome.com/motors/motor.htm). I was wondering how the LEGO ...
3
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3answers
6k 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)
2
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1answer
364 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?
6
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1answer
3k views

How do I export LEGO Mindstorms programs on the Chromebook

There is now a Chromebook app to program LEGO Mindstorms. I have multiple kids collaborating on programs for FIRST LEGO League. Can they share the program between their Chromebooks? I don't see a ...
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1answer
1k views

Mindstorms EV3 brick does not play sound file to the end

I have a 16 seconds WAV file and am trying to play it. It plays only the first 8 seconds both on the brick and on the Mindstorms programming software.
3
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3answers
779 views

Recreating Mindstorms TRACK3R test track

I didn't realize until now that the 31313 Mindstorms packaging secretly contains a hidden test track for the TRACK3R robot. And the packaging is long gone with the trash. D'oh! What is the simplest ...
2
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1answer
852 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 ...
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1answer
2k views

How do I rename an EV3 project?

I can rename the program in the Home Edition software but I just can't rename a project. Please tell me how to do it. Thanks!
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1answer
254 views

Getting a PC to recognize Lego Mindstorms as Controller Input

It is quite obvious that you can make a controller out of Lego Mindstorms, but I am curious as to how you can go about connecting this controller to your PC, and getting it to recognize it as ...
1
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2answers
330 views

Starting Lego robotics projects low-budget with the intention of expanding later

I've been digging around for cheap ways to build and control simple devices and was looking at the Mindstorms sets when I found WeDo and WeDo 2.0. WeDo appears to be compatible with Power Functions ...
2
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3answers
1k views

Does the Mindstorms EV3 software work on macOS Sierra?

I guess this is a continuation of these two questions: Does the Mindstorms EV3 software run on OS X El Capitan? Is the LEGO Midstorms EV3 software compatible with OS X yosemite? macOS Sierra was ...
3
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2answers
110 views

What is the minimum required set of parts for Mindstorms?

I'm interested in trying a second-hand Mindstorms kit, but can't afford the full kit. It doesn't need to be the latest version, either. If compatible with my computer, RCX would do. Is it possible to ...
4
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1answer
278 views

Are there LEGO Hygrometer sensors?

Currently, there are light, ultrasonic, touch and sound Mindstorms sensors, but is there a hygrometer sensor from LEGO?
4
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1answer
352 views

What files are required to run an ev3 program?

I'm working on a project that aims to help beginning Lego Mindstorms programmers. I'm developing certain "modules" (moving straight, making a turn) for students to try, and I want to develop a program ...
5
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2answers
324 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 ...
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2answers
103 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 ...
0
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1answer
295 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,...
0
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2answers
141 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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1answer
3k views

LEGO Mindstorms EV3 crashes on OS X El Capitan

I get the following problem details, can anyone help me? Process: MindstormsEV3 [595] Path: /Applications/LEGO MINDSTORMS EV3 Home Edition.app/Contents/MacOS/...
4
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2answers
1k 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
384 views

Direct/system command for reading the display buffer of EV3 bricks?

I recall being able to read in the display buffer of NXT 2.0 bricks over Bluetooth/USB by issuing Read IO Map system commands. I've looked through the bytecodes and communication documentation for the ...
1
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0answers
98 views

Mindstorm RIS 2.0 installation on Windows 10 [duplicate]

I recently bought a RIS 2.0 but was unable to install the program onto my laptop running Windows 10 (now). I tried it on my office computer running Windows 7 and the installation was successful. The ...
2
votes
1answer
427 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
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1answer
116 views

What is LEGO MINDSTORMS? [closed]

I have heard of LEGO MINDSTORMS, and wondered what it is for the longest time. What is it? What can you do with it?
5
votes
1answer
258 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 specifies ...
4
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2answers
183 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 ...
6
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1answer
178 views

What are the various LEGO motors that have been produced over the years?

RCX, NXT, WeDO, EV3, Technic etc. How many different motors have been released over the years??
3
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1answer
601 views

Differences between EV3 Gyro and Hitechnic Gyro

I understand that the Hitechnic Gyro was made for NXT but are there any advantages of using it over the normal lego gyro in EV3??
5
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5answers
4k views

Does the Mindstorms EV3 software run on OS X El Capitan?

El Capitan was released a few days ago, and I want to upgrade. Will there be issues with the software, or will it run nicely on El Capitan? My Mac: Retina MacBook Pro 13", Early 2015
2
votes
2answers
224 views

RCX 2.0 Firmware downloaded successfully but “Run” does nothing

I recently was able to install RIS 2.0 for the first time since I just got a 32bit Windows 7 machine. I got the IR tower to download the firmware to the RCX 2.0 and it showed exactly the same screens ...
3
votes
1answer
459 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 ...