Hot answers tagged nxt
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The majority of sensors manufactured by HiTechnic (a third party company) are certified by The Lego Group. The company's website lists the following criteria required to be certified:
100% compatible with Mindstorms NXT
Meet the highest LEGO quality standards
Comply with all safety standards
RoHs Compliant (certified lead free)
These ...
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It doesn't seem to be possible. To quote mindsqualls' site:
MindSqualls is a .Net library for controlling a LEGO MINDSTORMS NXT or NXT 2.0 robot via either a Bluetooth- or an USB connection. It is written in C# and requires .Net v. 2.0 or newer.
Which means it allows you to control your NXT brick from the PC, and from the PC only. It does not offer any ...
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Using Mindstorms NXT software (NXT-G), you can transfer any file from NXT to computer. Open "NXT window" (NXT icon in the lower right corner of interface), then go to "memory" tab. Select a file in NXT and click on "upload" button.
Or - more convenient - you may use "NXT Explorer" feature of BricxCC (in the "tools" menu).
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LEGO itself does not make specific firmware/software to support other devices other than the official NXT brick but...
...you can still use Arduino and Raspberry Pi (and more) with the NXT components including the NXT brick. Personally, I mix LEGO and electronics all the time.
Arduino & Raspberry Pi are flexible development platforms and they can ...
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It turns out that the issue is a faulty/weak motor connector socket. While randomly trying to troubleshoot, I found that if I did nothing more than press or move the cable, the motor would act bizarrely. Initially I thought it was a bad cable, but after trying additional cables it seems that it is more likely just a poor connection at the motor. I suppose ...
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No, the standard NXT-G software provided by LEGO will not allow you to program a RCX brick.
Outside of official software, your best bet is probably to use NQC which is C-like; there's also NXC for the NXT which is similar.
There are a lot of others which have been discussed in the following questions: Is there any other way to program the Lego Mindstorms ...
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Here we go. I was browsing around looking for answers when I stumbled upon this thread: https://discussions.apple.com/thread/4158314?start=0&tstart=0
One person mentioned Lego tech support sent him a link to an ISO. It looked like maybe it was a newer ISO than the one I was using, so I tried it: ...
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I would suggest Arduino or, preferably, Raspberry Pi. Here's some info extracted from my previous answer on NXT:
Arduino & Raspberry Pi are flexible development platforms and they can easily be interfaced with other devices. As for image processing the Raspberry Pi would be the better choice since it is more powerful.
Arduino & NXT:
There is a ...
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It depends on which version you're talking about.
NXT 1.0 Light Sensor: This sensor should detect up to 100 shades from white(100) to black(0).
NXT compatible Hitechnic Color Sensor: This sensor will detect 17 colors including white(17) and black(0) or 100 shades from white(100) to black(0).
NXT 2.0 Color Sensor: This sensor can detect 6 colors including ...
3
As you say yourself, you want to detect the tilt of the pendulum rod, so I'm assuming what you're after is actually its angle. Measuring anything else would probably result in tedious calculations anyway; and in addition, considering you'll want to try to keep the angle in a specific range, you'll need to know it.
As such, an angle sensor may seems the most ...
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I ran into this issue using macos 10.8 on some new macbook airs and trying to run Mindstorms NXT for Education software, tried various 2.0 and 2.1 versions.
We eventually got a ~900meg NXT 2.1f installer package from Lego support,
If you popped up the mac console application, you would see various framework/library errors related to Fantom.framework and ...
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I installed Mindstorm Education Kit 2.1 on a 2009 Mac Book Pro 17" running Mac OS X 10.8.1 (Mountain Lion) and received the 1003 Error code on launch. I was able to eliminate the error by installing the Fantom Driver.
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There are a number of Mac Patches available from official Mindstorms support site:
Mindstorms Support > Files > Patches
They include:
Software 2.0 Fix (Mac)
Snow Leopard Fix
MAC Leopard Fix
The interface isn't all that obvious:
First, click on the file you wish to download from the carousel, then click on the big "Downloads" button, you should ...
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I just installed the retail version of NXT 2.0 (v2.0f6) on Mac OS 10.5.8 and got the error 1003 "a required file is broken" when first starting up the Mindstorms NXT application. Turns out this is a known bug when using the case-sensitive journaled filesystem. Mindstorm tech support walked me through the fix which was to rename the ...
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The hidden button under the NXT battery seems to be a reset button, which has to be pressed for 7 seconds to have any effects. I assume it resets the brick in its factory condition, but I didn't find any specific documentation from LEGO on it.
However, there was an issue a few years back which caused the brick to freeze and click permanently (which was ...
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There are no programming tools available on the currently available iOS devices, including iPads.
Technically speaking, this is because the iPad lacks support for the correct Bluetooth profiles that would allow a direct connection. iPads also have no USB port that can be used in host mode to directly connect the NXT (the USB to dock adapter from the camera ...
2
I think the simplest way is to use an NXT Converter Cable (Available from Bricklink).
This has an NXT connector on one end and the standard 9v connector on the other. You can connect the 9v connector to any 9v battery box, (e.g. Battery Box with Switch (9V)) and, depending on the polarity, power the NXT motor forward or backward.
Now, the issues:
The ...
2
Most sensors have the capability of sending you notifications or updates as the value of their sensor changes. This is accomplished by repeatedly contacting the NXT brick and querying the sensor. The polling frequency allows you to configure for each sensor how often this is done.
In most cases, you may leave this value set to 0, which indicates ...
1
Carl,
I have the same problem with Mountain Lion and Mindstorms that I bought for Christmas. I have discovered the following so far:
This is a known problem that Legos has not taken any action on. I believe it is related to two things: different bluetooth chips and Lion / Mountain Lion OS changes.
The Macs with Broadcom Bluetooth chips supposedly will ...
1
Having recently ran into this issues as well on OSX (10.6) here's the solution that worked for me:
Uninstalled Flash completely
Re-install the NXT software from the CD
launch and run
Apparently, only the version of Flash that was used when they developed the software is the one that will work with it. It gets installed with the software if it's not ...
1
The drivers are probably not installed correctly. You have to run the legodriver.pkg (by double-clicking on it) which you can find in the 'Parts' folder.
You should use this detailed list of steps (and references). The legodriver.pkg is mentioned on point 5 of the fix for OS 10.6.
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Since everything is fair in love and war, you could do this:
Using an Arduino and this NXT compatible shield, you could program it to send a continuous burst at 11494,253Hz creating noise in the frequency range of the NXT Ultrasonic sensor.
This site shows how to use the Shield with the sensor. All you have to do is modify the code to create a long ...
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I think you're overlooking a very simple yet elegant solution: connect a NXT motor to the motor port (no problem there, that's what it's for), connect a RCX rotation sensor to the RCX (again, the intended purpose), and by now you should pretty much know where I'm going with this: connect the rotation sensor mechanically to the NXT motor.
Considering the NXT ...
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All of the commands for controlling the robot are documented on Lego's website here: http://mindstorms.lego.com/en-us/support/files/default.aspx
You can write your own custom remote control software in most programming languages, but this is generally difficult on a Mac. Windows and Linux computers are easier to program for, Windows being the easiest. This ...
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Also - check what device you are working with. I know the iPhone doesn't recognize the NXT because it's not an "officially supported" Bluetooth device. The only way to get your iPhone or iPod to work is to "jailbreak" them. I'm not too sure if this extrapolates to all apple products either.
I would agree with the user above. Revert to the original ...
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Those answers above do all work. If I were looking for fast speed, I would probably use USB, however if you robot moves around, then bluetooth is probably the best solution (the slowest thing in the loop is the NXT anyhow :P). If your Bluetooth hardware on your computer supports multiple devices, then simply address each associated COM port per device.
...
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There are some answers to this on Stack Overflow: C++ OOP Library for Programming the Lego NXT
NXT++ is the best choice with dual USB/Bluetooth support.
The C++ communication library has more features, but it's Bluetooth-only.
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If you are looking for some info on sending commands over bluetooth, you might want to check out the link below:
http://www.robotappstore.com/Knowledge-Base/Programming-LEGO-NXT-Mindstorms/92.html
It's a pretty good introduction into sending direct commands to the NXT over bluetooth. That's what all the videos are doing that you see. What's convenient ...
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I was interested in Lego Mindstorm 3 too, so I asked Lego directly. This is what they replied (on 9th February, 2012):
I'm afraid that LEGO Mindstorms 3.0 you inquired about isn't available to purchase at the moment! It might be around soon, but I can't tell you about any new LEGO® toys until they're actually available for purchase!
Well, it might be ...
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