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There were 50 questions found in this category:
  1. My NXT is frozen and I can't reload the firmware (I'm using NXT-G)! (Answer in Francais)
    Téléchargement du micrologiciel LEGO Mindstorms NXT Vérifiez que LEGO Mindstorms NXT est branché directement au PC/Mac par un câble USB (la connexion Bluetooth ne fonctionne pas). Appuyez sur le bouton de réinitialisation du matériel sur la br...

  2. Are there ways to program an RCX or NXT to make the motors rotate a precise amount?
    The motors can be programmed to run for a specified amount of time, degrees of rotation, or revolutions in the program.

  3. 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 in what units (such as inches or cm for the Ultrasonic sensor).  Then select which port the sensor is plugged into and the NXT will display the ...

  4. Can I use legacy sensors with the NXT?
    Yes. Legacy RCX sensors can be used with the NXT. The Educational Version of the NXT kit comes with a special cable just for connecting legacy sensors to the NXT. One end of the cable is the regular telephone cable style NXT connector and the other end of the cable is a legacy RCX style 2x2 pl...

  5. Can you change the axes on the NXT graph display?
    You cannot change the axes on the graph that displays your data logging on the NXT.  It is set at a range from 0 to 1000 and will automatically scale if your data goes higher than 1000 or lower than 0, but cannot be set to start at different values.  To look at your data more closely, and ...

  6. Does NXT-G have anything similar to events? How can I write a program that runs a whole sequence of tasks while waiting for a certain sound level to bring everything to stop?
    Unfortunately, NXT-G has no equivalent to the RoboLab event. The way to get around this is to use the beams to have multiple tasks executing at the same time. If you have more than 3 tasks, hold down the shift key while using the select tool to grow additional task beams off of the original thr...

  7. Does RoboLab 2.9 preserve on-brick programming for the NXT?
    No. Once you download the RoboLab 2.9 firmware onto your NXT, you will lose the capability to program on the NXT brick. On-brick programming is a feature of the NXT-G (LEGO Mindstorms NXT) software. The only way to regain on-brick programming is to re-install the NXT-G firmware on your NXT.&nbs...

  8. How can I attach motors to the NXT with the fewest number of pieces?
    1.    Two Motor Car: Materials i.     9-holed beams (3) ii.    7-holed beams (2) iii.   NXT motors (2) iv.   Assortment of friction pins Attach the back of the two motors together (above the wire input) using a 9-hole beam ...

  9. How can I command my NXT car to move only when the sound in the room is more than a certain decibel level?
    The most efficient way to do this is to use a sound switch.  The only difficult part is to figure out what sound level (on a scale of 1-100) your threshold decibel level is.  This can be done easily by running the program while your NXT is plugged into the computer and checking the current...

  10. How can I do I combine the values of different sensors in NXT-G? For example, how could I program the motors to start only when there is combination of a loud sound AND a bright light?
    Sensor values can be easily combined using the wiring ports on the sensor blocks. The sensor blocks are different from the 'wait for' blocks, as they have wiring capabilities and return the value of the sensor.  Also, they don't delay the program with a 'wait' command, but run continuously. As ...

  11. How can I gradually increase the speed of my motors (i.e., make my car accelerate slowly) in NXT-G?
    The only way to adjust the power level during a program is to have it wired to some sort of varying function. The motor block, like many blocks in NXT-G, has a pull-down tab. One of the options is the power meter. This wire input accepts a value from 0-100, which is the same as the range of any of t...

  12. How can I program my NXT to play a song?
    To play a song on your NXT, use the 'play sound' icon.  Once this is within your program, you have two options:Firstly, there are many pre-programmed songs and sounds from which you can choose, so if one of those fits your needs, then you're all set!Secondly, you can string together multiple so...

  13. How do I change the volume on the NXT?
     To change the volume on your NXT, turn on the NXT, select the Settings option, then select the Volume option and use the left and right arrows to adjust the volume setting. Press the orange button to accept the selected settings. The volume range goes from 0, which mutes the NXT, to 4 which is...

  14. How do I create a loop in NXT-G so that I can repeat one sequence of events over and over?
    Create a sequence of events that you would like to repeat, and then create a 'loop' from the loop function on the left side. Then drag that whole sequence of events into the loop, and the loop will repeat them!  By default, the loop is infinite, but you can adjust it if you click on the loo...

  15. How do I delete files off of the NXT?
    To delete a single file off of the NXT, select My Files and then select the type of file that you want to delete.  To delete a program, select Software files.  Then select the specific file and to the right of the Run button there is a trashcan icon that says Delete.  Select the Delet...

  16. How do I display text on the NXT display screen?
    There are two angles from which to approach this question. First, you can directly display text on the screen using the 'display' function in NXT-G. To access this function, you must leave the common functions palette and use the complete palette, which is accessed by clicking the 'complete palette'...

  17. How do I find my program on the NXT?
    To run your program on the NXT, select My Files, Software files and then select your program.  If you wrote your program in RoboLab the default file name is rbl.  If you used the Begin NXT icon to write your program in RoboLab or wrote your program with the LEGO NXT Software, then you ca...

  18. How do I keep my NXT from shutting off?
    The NXT has a sleep function that automatically turns it off after a number of minutes to save battery power.  This function can be turned off or adjusted by selecting the Settings option and then the Sleep option.  You can set the NXT to shut off after 2, 5, 10, 30 or 60 minutes or to nev...

  19. How do I upload data from the NXT into NXT-G?
    Make sure the NXT is connected to the computer, and click on the NXT image button at the bottom right of program screen. Once the dialog box is open, click the Communications tab if it is not already at the front. Click on the Scan button to scan the NXT’s memory. Click on the M...

  20. How do I upload data from the NXT to the NXT-G?
    By using the 'NXT window' button located near the download button, you can access the memory section of the NXT. Here, under the memory tab, you can view the files that are on the NXT, select your desired file, hit the Upload button, and choose where to save it.

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