Is there a way to change port values and settings through the interrogate RCX command?
Yes. It is possible to change the way that ports are configured, as well as motor speed and direction, through 'interrogate RCX'. By running 'interrogate RCX', found under the administrator tab, port values can be changed. Below, port three has been changed to a raw switch. Below the picture o ...
How can I use the formula container?
The formula container is another way to do algebra with containers. Containers are identified according to their place in the sequence: red = c0, blue=c1 and so on. For example, to divide the red container by the blue container and then add it to the yellow container, use the following code: ...
What is the container's container?
The container's container is the container that corresponds to the container's number, for example, the value of the container's container if the container's value is zero is the value of the red container. The program below displays the number 50, indicating that this is the value of the red ...
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. Cause: ROBOLAB not installed. Solution: Install ROBOLAB on the computer, and you should be able to open .vi program files without a problem. Cause: incompatible versions of ROBOLAB Solution: Programs w ...
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 creation. In the above program there is no modifier wired into the Wait For Touch icon, therefore it defaults to waiting for a touch sensor to be pressed on Port 1. However, if in your creation you have the touc ...
Why doesn't the touch sensor data logging show up on the NXT display?
When data logging small values, like a small number of clicks from the touch sensor, it is hard to see the change on the NXT display. This is because the axis on the NXT graph is set at 1000 for larger values like the degrees of rotation of a motor. To accurately see the data you are taking, ...
Why does my NXT display "File Error!" when I try to run a ROBOLAB program on it?
If your NXT accepts (downloads) programs from ROBOLAB but then displays "File Error!" when you try to run them, you might have a mismatch between NXT firmware and ROBOLAB version. Try downloading the NXT firmware again by using the ROBOLAB Detective or the ROBOLAB Adminstrator. Detective is acce ...
Installing ROBOLAB on Windows 7
1. Look in your ROBOLAB Progam Files directory (where the .exe file is) for the "Tower Drivers" folder. 2. Inside the folder, find a file called "Setup.exe". 3. Right-click on the Setup.exe file and select "Run as administrator". 4. Run through the installer as you normally would to install ROBO ...
How can I make both motors move to an exact position, in sync?
To bring two motors to an exact angular location together, you should use the motor sync icon and the SMART rotational encoder. The program below accomplishes this: The motor sync icon tells Motor B to follow whatever Motor A does. The motor power icon turns on Motor A (and thus Motor B, becau ...
Do I need a computer for each RCX or NXT?
No. You can have unlimited groups working with RCXs or NXTs using the same computer. Of course, to maintain sanity, it is suggested to not have more than 4-5 groups per computer. Once the program code is created on the computer and downloaded, the running of the programs on bricks does not requi ...
How do I check for errors in my program when using ROBOLAB?
You can click the small arrow icon located in the top left-hand corner of the block diagram screen. A broken arrow means that you have errors; a non-broken arrow means you are error free. However, this does not always mean that the program will do exactly what you would like it to do; it is your ...
How do I multiply floating point values (decimals) in ROBOLAB 2.9?
The multiply block does not preserve the floating point status of its input factors (the digits to the right of the decimal point). For example, if you store the floating point number 1.68 in a container and then use the multiply container block to multiply it by 10, the resulting container valu ...
Installing ROBOLAB 2.9 on Mac OS 10.5.8 (Snow Leopard)
Question details: I've loaded ROBOLAB 2.9 (not 2.9.2 or 2.9.3 - the disc says it's 2.9) on my classroom iMacs and it runs fine. The OS on the iMacs is 10.4.X However, my MacBook is using 10.5.8. Upon launching ROBOLAB 2.9, it states that 3 VIs are missing or the path to them is wrong. The 3 VIs ...
How does NXT motor synchronizing work in ROBOLAB?
To synchronize motors means to have them move in lock-step with one another. One motor is the controller (or driver), and one other motor is the follower. If you synchronize the two motors of a car, for example, the car will be much more likely to drive straight. To sync NXT motors in RoboLab, u ...
Is ROBOLAB available in other languages than English?
Yes; ROBOLAB is currently available in Chinese, Danish, French, German, Japanese, Norwegian, Portuguese, Russian, Spanish, and Swedish. Note, however, that language versions may be different than the English version. Contact your local distributor.
My IR tower and RCX are not communicating. What should I do?
Here is a list of things to try if you are having problems downloading to your RCX. Try to block the ambient light that might disrupt the IR transmitter beam: close the window coverings, turn off all the overhead lights, and/or cover the RCX and transmitter tower with a dark cloth or a box. I ...
Can I install and run ROBOLAB on Windows Vista?
ROBOLAB 2.5.4* *ROBOLAB 2.5.4 has not been tested under the 64-bit version of Window Vista and it is unclear whether or not it will work correctly. It will work with the 32-bit version of Vista. Installation Problems: Installing ROBOLAB 2.5.4 on Windows Vista should be the same as installing ...
