The leJOS NXJ Tutorial. Simplified Chinese. The leJOS NXJ Tutorial is a practical guide on how to program the LEGO MINDSTORMS NXT � in Java using. The tutorial will teach you how to write Java programs that control a variety of leJOS NXJ is a Java programming environment for the LEGO MINDSTORMS. The leJOS Tutorial. A practical guide for developers with examples and trails– groups of lessons on a particular subject.

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Thank you so much for this! Replace the endless while loop with this:. You will then see: Switch to the hardware tab. Run the installer and you will see the following screen: You will receive an almost empty class. If any additional sources have been selected, the destination directories for them can be changed on the next page.

Then press “OK” and you should see some progess messages, such as: First, we need to create the main class of your program. This will the file called HelloWorld.

When your NXT has been updated, you will be asked: Iryna June 21, The next step is to configure Eclipse for downloading the software into the NXT. Help me please…where to get this LibUSB?

Writing and Running your first leJOS NXJ Program

If this free software has not yet been installed on your computer, it will start the Libusb installation wizard. When you have finished click “No” and the flash utility will terminate and then the installer will terminate, and you are done. Thnx for the detailed tutorial.


Give the project a new name, but avoid space characters. Eclipse itself is written in Java and does not contain an installer setup.

Open a command line prompt as described above and either type the command nxjflash or nxjflashg followed by hitting the Enter key. Lejos requires Libusb to communicate with the NXT.

We will create a HelloWorld class in the default java package:.

Colin August 4, I have the problem that was described above: Then open a command prompt and execute the following command in the directory in which you created HelloWorld. In the first line add: You now need to to enter a few lines of Java code. If you chose to NXJ Flash, you will see: It requires much less resources than the latest version of Java. The different values are separated by a colon and lejks colon is necessary at the end of the line.

Use a paper clip to press and hold the hidden button. It should look like the image below.

Tutorial on how to install and run Java on Lego Mindstorms NXT using Eclipse

When I first installed libusb. Cathrine March 18, The Windows installer will automatically sets all three environment ,ejos for you. Unzip the file and start setup. Lejos will then function as the operating system of your NXT. You will need to run command-line commands to test your installation and optionally to flash the firmware. The next page allows to adjust the folder in the start menu, that the leJOS shortcuts will be installed to:.


Kai February 6, If you chose nxjflashgthe GUI version of nxjflash will start. Could you please give me a tip of info?

Karter November 1, However, if you cannot even get Java to work on gutorial machine, enter the path to your java bin directory into the Path variable. Next, we need to define what should be displayed and when. This will start the downloading procedure. In short, Lejos needs to know where it has been installed.

tutoriak I had problems with the newer 0. Use the pull down menu denoted as 4 in the screenshot to select the downloading favorite your previously created. Add the following lines to the main method: I hope this helps.