This, together with color coding of the source, automatic formatting of the code, Program and then showing a list of errors. Syntax-directed editors that immediately show you any syntax errors in your program, rather than waiting until you compile the While command line tools are very useful, programming for leJOS NXJ is best done using an IDE. You can either compile and run your programs using the leJOS NXJ command line tools or you can use an Integrated Development Environment (IDE). We shall start, however, with writing programs that run on the NXT brick. This is all described in Communications tutorial page. Oh, and NXT programs can also communicate with external devices You can also communicate with leJOS NXJ programs from Android phones - see the Android tutorial page.įinally, leJOS NXJ programs can be distributed across multiple NXT bricks which can communicate with each other over Bluetooth or via RS485Ĭommunication using NXT cables linking port 4 of two or more NXT bricks. We plan to add a section to the tutorial soon that will describe how to develop programs that use the leJOS NXJ JME API. Such programs can communicate with the NXT overīluetooth. Phones or other devices that support the Java MicroEdition Environment (JME). While we are on the subject, it is also worth mentioning that leJOS NXJ programs can also run on mobile If you are interested in writing PC programs see the PC API command line tools section below. The part of the program that runs on the NXT can respond quickly to sensors and can accurately control motors. It can also display interesting user interfaces such as maps of where your robot To it and can do more complex processing. The part of your program that runs on the PC has more memory and processing power available Interesting option that leJOS NXJ supports is to write a program that runs partly on the NXT and partly on a PC with the two parts communicating They can also remotely control a robot running the standard LEGO firmware. leJOS NXJĪlso supports programs that run on the PC and control a NXT robot remotely. Most people will want to write Java programs that run on the NXT brick, but that is not the only option. This section describes how to compile and run leJOS NXJ programs. Ukranian translation thanks to Kate Belevets. Serbo-Croatian translation thanks to Jovana Milutinovich.ĭanish translation thanks to Sandra Knudsen.

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