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.

Filter by
Sorted by
Tagged with
5 votes
1 answer
83 views

EV3 Home Shuts down after 2 min. (lights orange, and 3 Icons Triangle, Gage, Manual)

I just purchased a second hand LEGO Mindstorms Home EV3. The brick turns on, allows firmware update, etc. However, after about 2 minutes the unit makes a noise, LED's turn red, and 3 icons appear. ...
user avatar
  • 51
1 vote
1 answer
70 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 ...
user avatar
  • 163
5 votes
1 answer
68 views

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 ...
user avatar
  • 163
3 votes
1 answer
59 views

When using Mindstorms Scratch-like development tool for EV3, is it possible to move a single or a few selected blocks somehow?

Say I have 10 random blocks in a line. Is it possible to move number 4 to position 1 without also moving block 5-10? As far as I have managed to move blocks all following blocks also gets moved even ...
user avatar
  • 31
2 votes
2 answers
122 views

Multiple Programming Blocks Running at Same Time

My team created a simple program to drive robot out. It consists of a MyBlock to drive straight a specified distance and speed utilizing the Gyro sensor. The program then activates a third large ...
user avatar
  • 21
8 votes
1 answer
2k views

What's the easiest way to build a delta robot using LEGO Mindstorms 51515?

I'm fairly new to Lego Mindstorms and I'd like to assemble a pick and place mechanism. I was looking for existing delta robot designs and found a lot of good looking designs: https://www.youtube.com/...
user avatar
2 votes
0 answers
85 views

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; ...
user avatar
1 vote
1 answer
77 views

Mindstorms v2 QuickTime won’t work

Still trying to get Mindstorms v2 working on Windows XP SP3. QuickTime causes software not to run with error code 2095. Have tried reinstalling QT several times. Tried different versions, no change. ...
user avatar
  • 151
3 votes
2 answers
126 views

mindstorms ris2 on XP memory error

I have installed mindstorms ris 2.0 on an XP system. Initially it worked fine now I get an “insufficient memory” error. I have reinstalled and tried a different hard drive. No change. Possibly the usb ...
user avatar
  • 151
3 votes
0 answers
102 views

EV3 classroom cannot create New Project

EV3 Classroom V1.5.0 Windows 10 I run a lab of 24 laptops running EV3 Classroom v1.5.0. Over the last week, more and more computers are unable to create new projects and/or open existing projects ...
user avatar
  • 31
3 votes
2 answers
151 views

Camera for Spike or Mindstorms for Streaming

I have made a few EV3/Spike robots that can be controlled remotely. They are controlled by either a PS4 controller or using a dashboard I built on a website. I'm running Python on the LEGO. However, ...
user avatar
  • 31
0 votes
0 answers
41 views

I can't build gear on Digital Desinger [duplicate]

I'm new to this program and I can't put a gear in place. I'm trying to build a worm gear but it doesn't work.
user avatar
2 votes
1 answer
141 views

EV3 file opens to lobby and won’t open any of the saved programs on it [closed]

Help!! I am using the Mindstorms app on a HP laptop to program missions to an EV3 brick for a robotics team. We saved our programs yesterday after finishing programming a couple missions. Today, the ...
user avatar
  • 21
4 votes
1 answer
93 views

Transformer 45517: power supply or charger?

I would like to build a charging station for EV3 with rechargeable battery (45501). Does the transformer (45517) give a simple stable dc voltage (power supply)? Or does it provide a controlled voltage ...
user avatar
  • 41
4 votes
1 answer
150 views

EV3 Classroom: Project, Programs and MyBlocks

There are two useful features in the EV3 MINDSTORMS (LabView-based) software, that do not appear to be in the EV3 Classroom (Scratch-based) software. We could create a project and write multiple ...
user avatar
  • 41
6 votes
1 answer
189 views

Mindstorm 51515 If then else alternative - like a switch statement

Is there a way to act on multiple values for a variable? For example, x may be 1, 2, or 3. If then else allows for 2 conditions. Multiple "ifs" work, but is cumbersome. Ideally I'd like a ...
user avatar
1 vote
0 answers
163 views

"Heads up! Could not open project" error message in EV3 software

Whenever we try to edit one of our old projects our EV3 Mindstorms Home software shows us the "Heads up! Could not open project" screen. What should we do? I am on the Mac OS Big Sur 11.2.3 ...
user avatar
0 votes
0 answers
76 views

NXT clicking brick syndrome

I have reviewed the other questions as well as I can and I am not seeing what is wrong with my NXT brick. Purchased second hand. Turned it on, seemed fine then started exhibiting dead brick/clicking ...
user avatar
5 votes
1 answer
284 views

How can I restore a .lms file created on Mindstorms Inventor to another device?

I have Mindstorms Inventor. I have been able to send my .lms files to my computer as backup. Now I would like to be able to load those programs on another device. How can I accomplish this?
user avatar
  • 53
2 votes
1 answer
36 views

LEGO EV3 Brick Type Data File not found

So this morning, I was going to build something with my EV3 kit, when I turned on the brick, the brick said 'Type data File not found'. Then I plugged in my touch sensor and all the motors in their ...
user avatar
4 votes
1 answer
345 views

MINDSTORMS 51515 exporting code

I have created a MOC that I am going to put on Rebrickable. But the code is so complex I can’t do what I normally do and take a screen shot of the code and they replicate it. Does anyone know how if ...
user avatar
1 vote
2 answers
335 views

What is the max current for the LEGO EV3 motors (pin 1-2)?

The LEGO EV3 Hardware developer kit says that the first and second pin of output port provides a current of max of 700 mA with 1 A but the motors appendixes don't have the maximum current that can I (...
user avatar
  • 149
2 votes
1 answer
108 views

How can I use the LEGO distance and color sensor from Power Up with the LEGO Mindstorms EV3?

I am asking how I can use the distance and color sensor from the LEGO Power Up series with my LEGO Mindstorms EV3. I know that they have different plugs but I am wondering if there is a solution to ...
user avatar
  • 23
1 vote
1 answer
84 views

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 ...
user avatar
  • 11
3 votes
0 answers
84 views

How do I import my programs from makecode (Chromebook) to my EV3 robot

While using makecode I wanted to import my file to my EV3 robot but it says that I have to connect my EV3 robot to my computer and then move the file to the robot. But since I'm on Chromebook I don't ...
user avatar
  • 31
6 votes
1 answer
487 views

Any build instructions for vertical Technic/Lego conveyor belts?

I'm trying to figure out how to continuously lift a stream of incoming pieces up vertically, at least 10cm. This is my first real custom build attempt, so I'm very much at a loss on how to go about it....
user avatar
13 votes
2 answers
3k views

Where can one find the documentation for the LEGO Mindstorms Robot Inventor software?

Is the documentation (either official or unofficial) of the programming "language" for the LEGO Mindstorms Robot Inventor software available somewhere? Preferably online, without requiring ...
user avatar
  • 13.9k
7 votes
1 answer
673 views

Robot Inventor 51515 - PIN request when connecting via Bluetooth

Just received the item 51515 Managed to connect the Mindstorms controller via Bluetooth from mobile without any problems. Great! Next step, connect from PC. When I connect from my Windows machine I ...
user avatar
  • 231
7 votes
2 answers
1k views

How do the Infrared Towers work?

I've seen a few Mindstorms "infrared transmission towers" listed on Brick Owl, Bricklink and other sites. However, I cannot find any good documentation that how they work, how they are used ...
user avatar
  • 420
1 vote
2 answers
100 views

Who designed EV3RSTORM?

I wonder, who designed EV3RSTORM? I have searched on Google but no results.
user avatar
4 votes
2 answers
1k views

Where do I find the program to go with the LEGO 51515?

I got a LEGO Mindstorms 51515, and I have finished building my 1st robot, and now would like to program it. However, I cannot find any companion program to use. Where can I install the companion ...
user avatar
3 votes
1 answer
280 views

Why does Pybricks on ev3dev have slow performance compared to EV3-G?

I got MINDSTORMS EV3 for my son and me. We installed Python (ev3dev) and ii seems to be running very slowly. I tried setting up the classic LEGO ev3g (block code), and that seems to run fine. Are we ...
user avatar
  • 141
4 votes
1 answer
303 views

Is there any cross compatibility between 51515 and 31313?

I'm thinking of buying another Mindstorms set, and I already have a 31313. I don't want to spend $370 just to learn they are completely incapable of communicating with each other, so if you could tell ...
user avatar
5 votes
1 answer
172 views

Are there any existing (or upcoming) aftermarket PoweredUp hubs?

I bought the Mindstorms v4 / advanced hub (in set 51515). It's a good set, and the Hub has some great features - notably a rechargeable battery, the ability to run "live" off of USB power, ...
user avatar
7 votes
1 answer
1k views

How do I erase all old programs using the new scratch type Education software?

I have 24 Lego Mindstorms EV3 bricks that have old programs and the bricks are named. I want to erase them so they can be used for new students. In the older Mindstorms software I would just reinstall ...
user avatar
1 vote
1 answer
286 views

Mindstorms EV3 - Continuous low battery alarm

My son is facing an issue with his Mindstorms EV3. Every time he turns it on a low battery alarm is displayed and it shut downs. This happens regardless of the batteries, we have tried 12 different ...
user avatar
  • 11
10 votes
3 answers
1k views

Old RCX Wires Have Become Grey and Brittle

I have a LEGO MINDSTORMS Robotics Invention System 2.0 (3804) that I acquired back in 2003 (17 years ago), and the wires have become grey and brittle. The wires used to be black and smooth, and ...
user avatar
1 vote
0 answers
198 views

Strange blocks appeared in my program

In my Mindstorms program, I found these strange blocks. They appeared when I sent this program to my other PC on Windows 10, which is more powerful. They don't work and I can't change them. Mindstorms ...
user avatar
  • 27
1 vote
3 answers
282 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 ...
user avatar
  • 11
6 votes
3 answers
304 views

Distance Learning Mindstorms web-based software

I am a Technology education teacher from NJ and I use Lego Mindstorms for my 8th-grade robotics class. Since we are doing distance learning (teaching from home) my students have not been able to ...
user avatar
  • 61
3 votes
1 answer
188 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 ...
user avatar
  • 31
2 votes
0 answers
261 views

How to get Lego Mindstorms EV3 expansion set (45560) programmes in Scratch

I bought recently Mindstorms EV3 expansion set (45560) and found out that the available programs are written in old LabView-style programming language: https://le-www-live-s.legocdn.com/sc/media/files/...
user avatar
0 votes
0 answers
185 views

Given program for EV3 Race Car doesn't work, but why?

I have successfully built an EV3 Race Car with instructions from a fan-made book made by Laurens Valk. In the book, he tells how to make my blocks for the rack-and-pinion steering and how to make a ...
user avatar
1 vote
0 answers
223 views

Lego Mindstorms EV3 software being detected as Ransomware [closed]

While I was programming my EV3 robot on my Windows 10, the Lego Mindstorms software immediately closed, and then Bitdefender Antivirus said that it was some sort of Ransomware. It was Bitdefender that ...
user avatar
2 votes
0 answers
193 views

Lego Mindstorms Software: "Error code: 4"

After updating my EV3 Brick's firmware from V1.09E to V1.10E and reinstalling the Teacher Edition of the Lego Mindstorms EV3 software (even though I'm not a teacher), I decided to recover my Brick's ...
user avatar
2 votes
1 answer
6k views

Current LEGO Digital Designer download is missing a lot of parts [duplicate]

The current LDD download is missing a lot of bricks that were in version 1.3.11 before. Such as, but not limited to: EV3 motors, sensors and the main EV3 brick. Does anyone have a solution/download ...
user avatar
2 votes
1 answer
109 views

EV3 program runs fine when connected to PC but does not respond when copied to the brick

I am building the race car mentioned in the LEGO Mindstorms discovery book using an EV3 brick. The problem I am facing is that the driving program runs fine when the brick is connected to the PC via ...
user avatar
1 vote
1 answer
2k views

Is the LEGO Mindstorms Education (not Home, not Scratch based) Edition for Mac OS gone?

I am starting a robotics and programming club with some 9-12 year olds and for the past week I have been developing activities using my Windows version of LEGO Mindstorms (the education / teacher ...
user avatar
  • 113
0 votes
1 answer
220 views

My Mindstorms Spik3r can't turn around

When I use the button for turning it just goes backwards. Why does this happen? I've checked the instructions and didn't find anything.
user avatar
3 votes
2 answers
108 views

EV3 software with large blocks

I can't seem to find a download for home or education version of EV3 software that has the large white blocks for either macos 10.13 or 10.15 on my imac. Can someone help? I currently have that ...
user avatar

1
2 3 4 5
7