LEGO Engineering ::

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Why can't I load the new ROBOLAB 2.9 firmware onto my RCX? []
The ROBOLAB 2.9 firmware for the RCX is larger than the ROBOLAB 2.5.4 firmware, so it may take a greater number of attempts to load the 2.9 firmware on
How do I use the Interrogate RCX function? []
The interrogate RCX command is a very useful way to see what is going on with your program while it is running. Interrogate RCX opens up continu
How do I use multiple containers? []
Multiple containers work exactly the same as a single container. It is just very important to not get confused about which container does what.
How do I plug my RCX transmitter (tower) into my computer? []
There are two different types of transmitters, and depending on which one you have, it plugs into a different port on your computer.
Using RoboLab with Control Lab 9751 (Interface B) []
You may be experiencing problems if you are not using the specific Control Lab Interface icons. To use Control Lab with R
How do I change the Inventor level in ROBOLAB? []
When you are using the Inventor section of ROBOLAB
When I do things in real life, it takes a while before they show up on the camer... []
The computer does not have enough power or memory to keep up a fast framerate for the camera, so the images may appear delayed or choppy.
My RCX will not turn on. []
Cause: The batteries are dead.
Create a program in Investigator that can run two tasks at the same time. []
1. The first task acquires light sensor data every 2 seconds while Motor A runs at half speed until the touch sensor is pushed in. Then Motor
How do I log data in Investigator program level 4 and 5? []
There are three important components to include in your program when logging data in investigator. Unless otherwise specified,
When I press run, nothing happens. Why? []
If nothing happens when you press 'run', possible explanations include: - It could be a bad download. Try redownloading your program.
Why do I lose firmware every time I change the RCX batteries? []
Every time the RCX is without 9V of power (usually supplied by the batteries), the firmware might be lost or corrupted. To prevent this from hap
How do you build your own VI with inputs? []
As an example program, here is a VI that receives sensor readings from a motor sensor:
Is there a way to change port values and settings through the interrogate RCX co... []
Yes. It is possible to change the way that ports are configured, as well as m
How can I use the formula container? []
The formula container is another way to do algebra with containers. Co
Why can't I open my ROBOLAB program on other computers? []
Problem: ROBOLAB programs created on one computer will not open correctly on another machine.
I tried to use the touch sensor, but it didn't work. []
Often times programming problems are the result of how you have built your robotic
My car drives, but not straight. []
Potential causes: The motors are
My car won't move when I push Run on the RCX. []
If the wheels do not spin and car does not move: 1) Pick the car up and now see if the wheels move. If the wheels
I'm having problems installing the NXT drivers in Windows XP SP3. []
This problem is caused by one of the following two problems: 1. There is a bug so that the NXT driver cannot be installed separately in Windo

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