Questions tagged [software]

Questions about software related to planning models or programming LEGO robots.

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Error of Control+ calibration test on CAT D11

I've just finished building set 42131 Cat D11 Bulldozer, but unfortunately I couldn't do the final calibration before driving it... I carried out the tests during construction and everything was OK. ...
Nathan Siess's user avatar
6 votes
1 answer
94 views

Minifigure overview and Combinator

Does anyone know website or program which provides an easy overview over LEGO minifigures and allow me to recombine parts from different minifigures and show me kind of preview picture?
Tobias Wohlfarth's user avatar
3 votes
1 answer
61 views

Detect stalling Motor in the new EV3 Education Classroom

I have a gripper that should automatically stop closing when an object is grabbed. I achieved this in the older EV3 Home Edition by reading the motor current and comparing it to normal values. If it ...
grnx's user avatar
  • 33
0 votes
0 answers
39 views

Software for designing your Lego Technic builds [duplicate]

Is there a software for designing Lego Technic builds? That way I would know which parts I really need to buy.
leonicolas's user avatar
1 vote
1 answer
408 views

How to import a .ev3 project file into Mindstorms software

My son just built this Rubik's Cube solver and I wanted to help him with the software aspect of it. Despite being a pretty big computer geek, I'm stumped! The software instructions say to download the ...
Hendy's user avatar
  • 141
1 vote
2 answers
962 views

Calibration Freeze on D11

I've read through similar posts, but haven't seen exactly the same issue. Built it once, and froze during several calibration attempts. Stripped it all down, rebuilt it very carefully and still have ...
Ozzy's user avatar
  • 11
0 votes
0 answers
196 views

Software to determine sets required to get all parts from a list

Assuming I have designed a MOC and thus have a list of parts that I need for it: Is there a software that helps me determine which (quantity of which) "sets" I need to buy? In particular, ...
F-H's user avatar
  • 109
3 votes
0 answers
221 views

LEGO Studios Movie Maker Camera (1349) (2000)

A few months back I had purchased the LEGO Studios Movie Maker Set (1349) and have been tampering with it, specifically the camera, to see if I can get it to work on my Windows 11 laptop. Was able to ...
DraconisN0x's user avatar
5 votes
1 answer
917 views

LEGO BOOST failing firmware update

We have a LEGO BOOST kit. When going through the initial setup, we get as far as connecting the move hub to the tablet and then it asks if we want to do a firmware update. There is no option other ...
xanld's user avatar
  • 283
2 votes
1 answer
905 views

Does the LEGO Mario app support three player?

There are 3 playable characters currently in the LEGO Mario theme (Mario, Luigi, and Peach). The app makes a two player mode available. Is it possible to play with all three characters in the app?
jncraton's user avatar
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2 votes
0 answers
150 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
2 votes
1 answer
3k views

Downgrade from Spike 3 Hub OS to Spike 2 Hub OS

I'm trying to downgrade our Spike Prime Hub from the Spike App v3's firmware to the Spike App v2's firmware. Has anyone been successful? Or does anyone have suggestions on how to flash the firmware to ...
Leif Jones's user avatar
1 vote
1 answer
203 views

Impact of Mindstorms sets being discontinued?

I was given some Mindstorms sets a while ago and I'm waiting for my kids to grow up so they can use them. Does the recent announcement of their end mean it will brick (pun intended) the kit? Will the ...
dargaud's user avatar
  • 113
4 votes
1 answer
471 views

EV3 Device Manager ghost on my mac - how to remove?

TLDR: how to remove EV3 software completely from Mac? A year ago I got a used Mindstorms EV3 set, fired it up and played around with my son who was 8 at the time. I installed a setup where we could ...
Lxi Nuuja's user avatar
1 vote
1 answer
5k views

Cat D11 LEGO set won't start the calibration process

As soon as I start the calibration process in the app, the gearbox jams. It doesn’t do anything, just clicks and clicks (stripping the gears). Any ideas what the cause might be?
Haircutterman's user avatar
1 vote
0 answers
89 views

42131 Bulldozer Testing [duplicate]

Got to the testing page and everything is working correctly except the left track is going in the opposite direction to the app animation. Should I start again?
Louisa Frisby's user avatar
2 votes
1 answer
296 views

software to record my own bank of LEGO pieces?

Is there any PC software that can keep track of my own pieces? I know sites like Rebrickable and BrickLink are probably good enough, but they require VPN to access in China. Studio can build LEGO ...
CasperYC's user avatar
  • 123
1 vote
0 answers
38 views

2 Questions, 1: LDD V4.3.12 not connecting to internet 2: I can't find any EV3 electric parts [duplicate]

(I'm new to LDD) Hi, I'm trying to use LDD for designing a robot for my Lego Robotics Class. It's just whenever I launch LDD, it just keeps saying that I'm not connected to internet and asking if I ...
PlasmaSyncz's user avatar
3 votes
4 answers
1k views

"Heads up! Could not open project" error message when opening project

When I try to open my project it gives me an error saying "Heads up! Could not open project". Could you please help me? Let me know if you want me to share the file. We were working on the ...
RAVI SAMBHARA's user avatar
1 vote
1 answer
135 views

Blender has "weight" but not the part itself?

New to Blender, I downloaded it to look for some parts that aren't available on Studio. I saw one part, 54937, listed in Peeron and LIC. I also looked on LDraw. For my download, I found part 54937 in ...
gcw0068's user avatar
  • 11
8 votes
2 answers
5k views

Lego Boost app won't connect. What are my options?

So far, on three devices (Amazon Fire tab, Galaxy tab S2, Galaxy Phone S9), the following when trying to connect to the move hub from the Boost app: all three permissions (Bluetooth, microphone, ...
mart's user avatar
  • 183
0 votes
1 answer
155 views

EV3G Where can I find the .vix file for the low-level functions? (Set integer, IO operations, start block)

They look like this: By default, when you refer to a vix file, it looks like this: <Reference Type="VILib" Name="TerminalTerminal.vix" /> But, to refer to these low-level ...
MoCsabi's user avatar
  • 131
5 votes
1 answer
1k views

What version of Lego Digital Designer has all the parts that LEGO ever added?

I would like to know what version of Lego Digital Designer has all the parts that the Lego company has ever added to the program, before the program was discontinued. I was able to find more parts ...
justanboy's user avatar
6 votes
1 answer
2k views

Control Lego Technic Control+ Hub via Python

Is it possible to control the Lego Technic Control+ Hub with Python? I have tried using Pybricks but that didn't work well for me.
user avatar
5 votes
1 answer
1k views

What are the differences between Studio 2 and LDcad when working with Technic and EV3?

Information regarding different software has come up over the years, but I am looking for something current. My goal is to create instruction books for some of my designs. Previously I used LDD, which ...
Tim's user avatar
  • 51
4 votes
0 answers
53 views

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
5 votes
2 answers
469 views

Export an object from Blender to LDraw

I have modeled a custom part in Blender and I would like to get it into LDraw format for use in LDCad and LPub3D. I don't know much about 3D formats, but Blender can export collada, alembic, fbx, gltf ...
SeeJay719's user avatar
  • 181
2 votes
1 answer
867 views

Am I able to use the Chrome version of the Mindstorm software on a Windows/Mac laptop?

We currently teach Lego robots as part of our Technology curriculum, but we are 1-to-1 in a BYOD environment. So we have all different types of devices the students use including Chromebooks, Windows ...
Kevin Halley's user avatar
7 votes
0 answers
449 views

Digital tool for roller coaster physics

I'm currently working on a roller coaster MOC with a looping. I started physically building the MOC but quickly recognised that it is quite a mess to build something, tear it down rebuild it, etc. ...
Spock's user avatar
  • 669
4 votes
0 answers
244 views

Migrate Lego Boost Android app data to another device

I have a Lego Boost Android application installed on device #1 and the app is logged into my LEGO cloud account (the same used for Lego Life etc. too) and is fully synced with cloud. On this device I ...
Kozuch's user avatar
  • 239
4 votes
2 answers
669 views

What 3D modelling services could I use to create custom LEGO pieces?

I want to create some custom LEGO Technic pieces, but I can't seem to find any software that is good at making it. I have tried using Blender, but it is hard to create holes. Do you have any ...
vanderrich's user avatar
4 votes
2 answers
2k 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 ...
technicguy1's user avatar
5 votes
0 answers
49 views

RCX 2.0 usb ir tower. Easiest path to start [duplicate]

I picked up a working set recently and I would like to know the easiest path to get going. I have several old and new PCs and win 98, xp, 7 (32bit) and 10 available. The kit has no CD. I have LabView ...
RPL's user avatar
  • 51
3 votes
1 answer
521 views

Why isn't the Sad Clown's torso in Stud.io?

I was working on designing a clown minifig and I found the 973pb1398c01 Torso 3 Black Pom Poms Pattern / White Arms / Black Hands that seemed perfect for it, but it turns out that it isn't in Stud.io. ...
chicks's user avatar
  • 5,275
6 votes
1 answer
279 views

LEGO Dacta Intelligent House

I obtained an LEGO Dacta 9707 Intelligent House set plus the Interface B: By searching on BrickLink for the set, I found out that there was an Activity Pack for use with Control Lab software. If ...
Alberto Santos's user avatar
7 votes
3 answers
3k 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 ...
Tool man's user avatar
0 votes
1 answer
821 views

LDD Update Date? [duplicate]

I was wondering the other day - When was LDD last updated and when, if ever, are they (TLG) planning to do another piece update?
bryantp26's user avatar
10 votes
1 answer
299 views

Do I really need to sign into Stud.io?

I recently installed Stud.io 2.0 on my MacBook. Is it absolutely necessary to sign in, or is that just so that you can save to the cloud and build with friends?
pkbpack18's user avatar
  • 113
1 vote
1 answer
4k views

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
5 votes
0 answers
75 views

Connectivity graph for a digital model

I'm looking for a way to take a digital representation of a model (e.g. an LDD or LDraw file) and extract from it a representation of the model that describes which pieces are actually connected to ...
David Marx's user avatar
1 vote
1 answer
4k views

How do I remove programs from my Lego Mindstorms EV3 project?

The title says it all. But to be more specific, I find it annoying that I have to download one single program to the EV3 Brick but then all the others in the project end up in the brick too, therefore ...
mindstormsboi's user avatar
0 votes
0 answers
216 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 ...
mindstormsboi's user avatar
2 votes
0 answers
271 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 ...
mindstormsboi's user avatar
1 vote
0 answers
780 views

Bluetooth connection between EV3 brick and MacBook Pro fails after 2 seconds

As I was adviced, I searched for same questions before posting mine but although some are similar, I can't make their answer useful for my problem. I have a Mindstorms EV3 Education brick and a ...
zigoreto's user avatar
2 votes
1 answer
7k 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 ...
VoidStoneDev's user avatar
1 vote
1 answer
944 views

How can I upload .ev3 files to my brick under macOS Catalina

After updating my Mac to macOS Catalina I can no longer run the previous Mindstorms software. The new tool "Mindstorms Home" doesn't allow for opening .ev3 files and uploading them to the brick. Does ...
Neal's user avatar
  • 11
3 votes
1 answer
261 views

Schematic and program listing of 28743?

Looking for more info on circuit board of 28743. E.g. what is the processor used? Would like to be able to reprogram the chip. E.g. program the train to stop on the third STOP directive strip, or ...
F Gruhl's user avatar
  • 31
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
  • 61
10 votes
2 answers
404 views

Is it possible to use EV3 MicroPython with Windows 7?

I have been trying to get python on my EV3 brick using an EV3 MicroPython SD card image as described on the Lego website. The EV3 brick seem fine with its new OS. Instead my problems are at the ...
Danielle's user avatar
  • 101
1 vote
0 answers
130 views

Could Microsoft MakeCode be an alternative to the EV3 program?

Is it possible to use Microsoft MakeCode for the EV3 as an alternative to the widely used EV3 program by LEGO? What are the benefits and drawbacks?
Meme Master's user avatar