LEGO Engineering :: :: light sensor don`t work

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My NXT is frozen (I'm using ROBOLAB)! What do I do? I downloaded ROBOLAB f... []
If you are using the LEGO Mindstorms NXT software (NXT-G) -- and not RoboLab -- you should install the NXT-G patch provided by LEGO Mindstorms Support. This patch fixes this problem only for NXT-G
How do I use Piano Player? []
With the RCX, Piano Player is a convenient way to create musical tones instead of wiring in each individual note in the program. It is accessed through
Can I data log in the NXT software? []
...ta logging is not possible in the LEGO Mindstorms NXT Software (NXT-G) in the same way data logging works for the ROBOLAB 2.9 software. However, you c
Can I see what a sensor is reading directly on the NXT brick? []
Yes. On the NXT you can see sensor values on the brick's display. Go to the View option. Then select whichever sensor you want to read and i
My subroutine is not working. []
Motor B is programmed to run as a Subroutine, but it will
How do I load my data into ROBOLAB? []
If you are using Investigator in ROBOLAB, go to the circle of icons on the left side of your scr
Create an RCX car / creature that will play laser tag with other cars / creature... []
Each RCX will be assigned a number. It will then have to "tag" other RCXs with the number using mail, while avoiding tags from other competitors. A
What is the correct procedure to wire a single fork or multiple forks? []
Forks are a sign of choice in a program. Either the top line of the code is executed, or
Create a program that continually checks to see if the light level is at or belo... []
If it is 50 or below, Lamp A is turned on at full power, and if it is above 50, Lamp A is off.
My car falls or tips backwards when I drive. []
If the car tips forward or backwards when driven, the car might not be not balanced well. If
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
Why do my RCX sensors change values over long periods of time? []
Powered sensors are sensitive to the amount of charge left on the batteries. Over long periods of time (hours) the amount o
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.
Is it possible to plug a motor into the input ports? []
Yes, on the RCX. The motors can be treated as sensors. The NXT motors can be used as sensors while plugged into an output port. By clicking
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 program in ROBOLAB with legacy sensors? []
You can program with legacy sensors in ROBOLAB for NXT the same way that you would have programmed with them when using the RCX. All of the leg
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:
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 i
Where can I find technical specifications for the NXT brick? []
The Hardware Developer Kit (HDK) published by LEGO Mindstorms provides technical documentation and schematics for the NXT, its bluetooth interface, and

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