NXT is the latest installation in the [Mindstorms](http://robotics.stackexchange.com/tags/mindstorms) line launched by LEGO. The NXT includes many improvements over the old RXC line, including a smarter 'NXT Brick', powerful sensors, and an easy-to-use graphical programming language.

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Performance/memory considerations for pathfinding lookup tables on RobotC for a small set of paths

I'm writing a C code generator geared toward RobotC and complex tasks for an FTC team, and was wondering about some performance and storage concerns: How much memory is available for my program's ...
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81 views

NXT Segway problem. Need advice/help

I'm attempting to build a segway robot using a gyrosensor and accelerometer. I'm having trouble getting the robot to remain standing, for some reason, and I can't identify the problem. Here's what I ...
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37 views

Just run program on NXT, not download?

Is there any way I can simply run a program on the NXT, but not download it? I have all my programs already downloaded, and I am connecting with a USB cable to a MacBook Pro using the NXT-G ...
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1answer
123 views

Powering down servos completely in RobotC+Tetrix

For a certain robotic application (actually for the FTC challenge this year) our team is performing an operation where a servo-driven arm could potentially be forced into an unknown position. We are ...
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31 views

Mindsensor Motor Multiplexer jump on run_unlimited

I am trying to run a nxt motor using the mindsensors motor multiplexer at a slow speed. When I turn it on, it tends to jump approx 20 to 40 degrees before moving at a slow speed. Has anyone seen ...
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44 views

Does anyone know what might be giving me this error coming from an i2c device

Here is the background. I am trying to write a service for the HiTechnic prototype board. Using the Appendix 2 from the blue tooth developers kit from Lego's site I am able to understand what is ...
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1answer
155 views

How do I interpret this data, received by the I2C controller on an NXT 2 brick?

I have been trying to write code to connect a HiTechnic prototype board to my lego brick. Although I am using MSRDS studio, that isn't the issue; reading and writing to the serial port that the device ...
2
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2answers
450 views

PID line follow with three sensors in Not eXactly C

I'm currently working on a line-following robot which uses three sensors to follow a black line. The sensors are pretty much in line and right next to each other. Right now, I'm doing a simple line ...
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73 views

Check if task exists in Not eXactly C

Is there a way to check if a task, function or variable exists in Not eXactly C? I know that in PHP you can use isset() to check if a variable exists and ...
6
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1answer
254 views

What are the notable limitations on using Java with Mindstorms NXT 2.0?

I'm a long time Java developer who is starting to learn on the Lego Mindstorms NXT 2.0. Are there any limitations to using the Java API? Which language is the most robust on the platform? I found a ...
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214 views

Will turning an NXT motor by hand damage it?

Many people claim that turning an NXT motor by hand will damage it. Is this true? Does it matter if the motor is idle or set on break? Are there any facts to confirm or refute this argument? I know ...
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390 views

Which programming language should I use with the NXT? [closed]

We have an optional course in our high-school which is about robotics. We're using the Lego Mindstorms NXT and program it with the original Mindstorms-software. However, we want to advance and use a ...
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More powerful alternatives to Lego Mindstorm NXT 2.0? [closed]

I'm interested to build Robot from my imagination, and I was looking to purchase a robotic kit. I find the Lego Mindstorm NXT 2.0 really interesting for many reasons : You can plug whatever brick you ...
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1answer
243 views

Properly flashing the firmware on a Lego Mindstorms NXT

I am attempting to upload a custom firmware to a Lego Mindstorms NXT and am having issues. First of all, I'm attempting to use nxtOSEK, which would let me run C++ programs on it. The problem is, ...