Questions tagged [ev3dev]
A Debian Linux distribution that runs on LEGO MINDSTORMS EV3. Visit http://www.ev3dev.org for more information.
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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 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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Capture video stream from LEGO Studio Camera (Logitech USB webcam) in ev3dev?
Once upon a time, LEGO made a digital camera for the LEGO Studios and Mindstorms line. Internally it's an old USB Logitech camera repackaged in a LEGO housing.
It could also be used with the old LEGO ...
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7
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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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Slow down the mindstorms EV3 motor so target position is not overshot
I have Debian jesse installed on a mindstorms EV3 and I'm using the ev3.lego library: https://github.com/topikachu/python-ev3
I want to be able to slow down the motor as it reaches its target ...
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How to get double the speed from 2 regulated EV3 motors?
So I've noticed that if I connect two EV3 motors to one another (with gears), I still get exactly the same maximum speed as if I had a single motor.
So, my question: how can I get twice the power/...
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How to instruct Mindstorms EV3 from PC conditionally?
I want to direct my LEGO Mindstorms EV3 creature from my PC conditionally (ev3dev, Python). The idea is that the program runs on the computer, collects real-time data from different sources, processes ...
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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 ...
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3
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1
answer
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How to enter wifi-password on ev3dev?
After successfully installing ev3dev and getting the USB connection working I now want to get my wifi-dongle working (or rather connecting). The dongle is successfully found and my LAN is displayed.
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3
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How to cross compile for ev3dev using Docker
How to add ev3dev libraries/headers to docker cross-compile setup?
I have assembled ev3dev on BrickPi (with Raspberry Pi 1 - chip BCM2835). I think, it all should be pretty similar for EV3 brick too. ...
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2
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1
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How do I make use of the full SD-card after installing ev3dev
After writing the image to the 8G microSD-card, initial setup of network and installation of git (with apt-get) I could not install anything else since I was out of diskspace. This confused me. But df ...
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2
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1
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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 ...
- 21
2
votes
1
answer
563
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Controlling EV3 motors within VC++
I've got an application within some VC++ software (BCI2000). This is running on Windows 7. Although BCI2000 can run elsewhere, I'd like to stay on Windows.
I've got an EV3 whose motors I'd like to ...
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1
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EV3Dev Gyro sensor doesn't output values beneath 0
So, basically, my problem is that my Ev3 Gyro Sensor clamps outputs beneath 0 to 0.
If I were to rotate my robot clockwise, the gyro rotation would go up, but when I rotate my robot counter-clockwise, ...
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1
vote
1
answer
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Why is my EV3 status light pulsing? (ev3dev)
I am using EV3 micropython (ev3dev?). When I upload the below program to my EV3, I see on the screen the usual play button image which looks approximately like the below ASCII art:
...
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Port Splitter for EV3 motors
I have searched all over the internet for EV3 port splitters for motors. I have got 4 large motors and 2 medium motors and I do not have enough motor ports for them all. I can usually only find sensor ...
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Unable to open port error
Since today, no matter what program that uses sensors I try to run on my EV3 I get the following error:
lejos.hardware.DeviceException: unable to open port
at lejos.internal.ev3.EV3Port.open(...
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