Questions tagged [ev3]
EV3 is the 3rd generation of LEGO MINDSTORMS, released in 2013.
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What is different between the EV3 Home and Educational sets?
The newly announced LEGO Mindstorms EV3 sets for home and education have some differences, but it isn't clear to me what they are, specifically. It seems that have different sensors, perhaps ...
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Is Mindstorms EV3 backwards compatible?
LEGO Group announced the next Mindstorms version, the EV3 which will be available in the Fall, 2013.
Does anyone know if the new version, specifically the controller, will be backwards compatible ...
user1262
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Export LEGO MINDSTORMS EV3 Lab Code
I was wondering if it was possible in any way to see the actual code that is generated by the Lego Mindstorms IDE.
I know there isn't a direct 'export to code' option within the tool but I wondered ...
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What does EV3 stand for?
I am wondering what the official reason behind the name of LEGO's latest MINDSTORMS robotics platform is. What does "EV3" stand for?
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Is there a changelog for any firmware updates on an EV3 brick?
When a firmware update is released for the Mindstorms EV3 brick, are there usually any changelogs for them explaining what's been added or changed? If so, where can they be found?
user5971
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Are there any benefits to using PF motors instead of EV3 ones?
Can someone explain to me the key differences between PF motors and EV3 ones? I understand that EV3 motors are 'regulated', presumably meaning that you can control their rotational speed depending on ...
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How to install Firmware 1.10E on an EV3 home/retail edition brick
If and how can you install firmware 1.10E on an EV3 brick from an home/retail edition set (instead of an education set)? Updates 1.0E9 are only recognized from the Mindstorm software, also with ...
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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 NXT/...
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Is it possible to use 5 motors on an EV3 brick?
The EV3 brick has only four output ports (A B C & D) to run motors. Is there any way to use port 1 (sensor port) to control a motor?
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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 ...
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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 ...
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Programming on a chromebook with EV3
How do I install the new Lego block programming software on a chromebook? We have the standard version, but want the new one that looks like Scratch.
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What is known of the capacities of the MINDSTORMS EV3 when it comes to interconnection with a network (WiFi, bluetooth)
What is known of the new MINDSTORMS EV3 capabilities when it comes to netwoked functions. What type of interface can be plugged to interact with a PC or portable device (smartphone/tablet)?
In term ...
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Making an ATM with an EV3
I am building an ATM using my LEGO Mindstorms EV3, but I ran across a problem. The problem is that I want to be able to input the amount of money that I want to get out of the ATM but I can only have ...
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How to get good color readings from the color sensor?
What type of setup is needed to get good color readings from the Mindstorms EV3 color sensor:
Shape of object?
Size of object?
Distance to object?
Color of background?
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Where does the EV3 software store its crash reports?
I cannot find where the crash reports generated by my EV3 software are stored. I have looked where it tells me to, but I can't find any.
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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.
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How can I make my robot heavier?
I'm building a 3kg LEGO EV3 sumo robot and I need to make it as small as possible.
Which LEGO items do you recommend to add more weight on it? (tires, plates, wheels, blocks, minifigs etc.)
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What are the programming languages that can be used on Lego Mindstorm EV3?
My son is interested in robotics. For me, I would like maximum flexibility for programming. For my son, I guess something simpler would be preferable so that his interest is not killed by complexity ...
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Is it possible to edit a MyBlock input parameter value?
I have created MyBlocks but want to change the input parameter to negative. Is this possible or must all the MyBlocks be re-written?
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Is there a microphone that works with Mindstorms EV3?
I'm planning to program my EV3 robot to do voice chat over VOIP using ev3dev and a Debian program. Is this possible? Are there microphones known to work with EV3, and has anyone had experience using ...
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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.
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EV3 screen stuck at "Starting..."
After I turn the device on, its screen is stuck at "starting..." for a long time. It hasn't change into the regular screen, and the light behind the button was still red (didn't become green). Is ...
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How to remember initial position of a robot and return to it
I have an EV3 robot with motors, like a car, that can move forward/backward and left/right and have some sensors attached. I want it to remember its initial position by remembering all the movements ...
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Is it safe to try different firmwares on EV3?
I have prepared a SD card to run Lejos on EV3, as said on Lejos Sourceforge page and I'm about to test it. What worries me - will I still be able to go back to original Firmware if something goes ...
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Help with my Ev3 printer
I'm building an image printer using my ev3 set and several more pieces, as a project to keep me occupied while I'm stuck at home.
Here's how it looks:
I've done the build part, the way I've chosen to ...
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How can I rotate an EV3 motor an exact number of degrees using RobotC?
I'm trying to rotate the motor of an EV3 by an angle of 50°. I can't.
How I can rotate a NXT/EV3 motor by a given angle using RobotC?
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How can body segments be moved to precise angles in snake robot?
I want to create an EV3 robot similar to this:
I've glanced at the mentioned papers. To me it seems that some simpler equations to govern the motors will work also.
I have 9 segments, articulated by ...
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Read power usage and respond when motor is straining
Is there a way to know if the drive wheels are "straining", like when locked up with an opposing bot?
This is for a Lego sumo bot using the Lego Mindstorms Education EV3 Core Set (EV3 Large Motor ...
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No software with the EV3 robot?
We bought EV3 robot but it looks like there is no software and we have to pay an additional $99 for the EV3 software. Is this true?
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EV3-specific bricks missing from Lego Digital Designer 4.3.11 (Win)?
I have LDD on my Mac and have used it to create EV3 models (like an FLL robot, or a Lego dot-matrix printer). Recently, I purchased a cheap Windows laptop for use by a FLL team.
After twice ...
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Lego Mindstorms Ev3 home edition on Mac OS Mojave bug - bricks sometimes go blank
I have a fresh install of Mojave and of Mindstorms Ev3 home edition. It seems to work fine but then randomly all the information disappears from the blocks at the bottom of the screen, and sometimes ...
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Understanding the makeup of an XML .ev3p file
When you unzip an .ev3 program, there are many txt and xml files that are inside. In particular, there is an xml file produced with the filename extension .ev3p, which seems to contain program ...
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Pass sensor or motor port number as a parameter
I want to create a block for one light sensor or one motor separately. Is it possible to give the number of the port as a parameter to a sensor or motor block via data wire? In NXT-G it was possible.
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How to connect two LEGO Bricks EV3 by USB using python
For some project, I have to use 7 motors with ev3 bricks.
So I would like to connect 2 bricks using USB-USB link, and make them communicate, in python.
But I don't know how to do that, I've tried ...
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Can I change the firmware on a Retail EV3 Intelligent brick to the Educational version?
The LEGO Mindstorms EV3 comes in both educational and retail versions. The educational version differs in bricks, sensors, a rechargable battery and datalogging capability.
I would like to know can I ...
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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 ...
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What does taking Raw value for EV3 Colour sensor do?
I participate in Robotics competitions like the WRO and I want to know if using EV3 colour sensor raw values helps in line follow.
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How can an EV3 motor "remember" it's starting position?
I am currently working on a project that uses large motors. I want the project to return to a "starting position" (0,0,0) at the touch of a button so that it can be used multiple (identical) times. ...
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How do you program mindstorms to keep doing a task until either the IR OR the colour sensor state changes
How do you program mindstorms to keep doing a task until either the IR OR the colour sensor state changes. I would like to use the wait block but it can only be either the colour sensor or the IF ...
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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 problem ...
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Compatibility EV3 software with NXT brick - known limits?
Lego says I can I use the new software to program old NXT bricks:
Q: Is EV3 backwards compatible with NXT hardware?
A: Yes. You can program your NXT intelligent brick using the new EV3 ...
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How to run 2 motors at the same time in the new EV3 version?
So I've seen a question that solves my problem in an older version, which I don't think is possible in the Education EV3 Classroom - 1.2.2, which is the one I'm using. I want to simultaneously run 2 ...
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Can you change the sensitivity of an EV3 Touch Sensor?
My son is making a LEGO pinball machine and is wondering if it is possible to increase the sensitivity of an Ev3 Touch Sensor as when a ball hits it? Or does he need to use Color Sensors?
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What is the max current for the EV3 I/O port's VCC pin (pin 4)?
The LEGO EV3 Hardware developer kit says that the fourth pin of input or output port provides a voltage of 5 volts but doesn't give the the maximum current that can be drawn from the pin.
What is the ...
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Communication between two Ev-3 bricks
How the communication between two Ev-3 bricks is done over Bluetooth? What is the nature of data that can be communicated?
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EV3 as master and NXT2 as slave?
Will it be possible to daisy chain a NXT brick as a slave of a new EV3 brick ?
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How to close color Sensor properly?
I want to get data from the color sensor with Bluetooth. I can get data but when the program terminates, the color sensor dose not close even though I call function close() on the color sensor. The ...
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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 been resolved; not sure why) but I'd ...
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EV3 Brick Error Symbols?
I am currently developing an EV3 robot that sorts colored technic beams. However, the brick will only run part of the program and then generate a strange error code on the brick's screen. The error ...
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