Bluetooth And LeJos

[nikita190]

Hello, I'm trying to connect to pc using bluetooth with nxt

Code: Select all

    NXTConnector  nxtConnector = new NXTConnector();
         
    nxtConnector.connectTo("NIKITA", "00:16:53:0b:9b:99", NXTCommFactory.BLUETOOTH);


But it throws an error

Code: Select all

js.tinyvm.TinyVMException: Class java.net.URL (file java/net/URL.class) not found in CLASSPATH C:\\Program Files (x86)\\leJOS NXJ\\lib\\nxt\\classes.jar;C:\\Users\\Nicol\\leJOSNXJProjects\\test2\\bin;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\charting.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\jtools.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\pccomm.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\pctools.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\3rdparty\\bcel.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\3rdparty\\bcel-src.zip;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\3rdparty\\bluecove.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\3rdparty\\bluecove-gpl.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\3rdparty\\commons-cli.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\3rdparty\\jcommon.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\3rdparty\\jfreechart.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\pc\\3rdparty\\stax-api-1.0.1.jar;C:\\Program Files (x86)\\leJOS NXJ\\lib\\nxt\\classes.jar
   at js.tinyvm.ClassRecord.getClassRecord(ClassRecord.java:855)
   at js.tinyvm.ClassRecord.storeReferredClasses(ClassRecord.java:412)
   at js.tinyvm.Binary.processClasses(Binary.java:381)
   at js.tinyvm.Binary.createFromClosureOf(Binary.java:309)
   at js.tinyvm.TinyVMTool.link(TinyVMTool.java:97)
   at js.tinyvm.TinyVMTool.link(TinyVMTool.java:48)
   at lejos.pc.tools.NXJLink.start(NXJLink.java:134)
   at lejos.pc.tools.NXJLink.run(NXJLink.java:101)
   at lejos.pc.tools.NXJLink.start(NXJLink.java:33)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at lejos.pc.tools.ToolStarter.startTool(ToolStarter.java:31)
   at lejos.pc.tools.NXJLink.main(NXJLink.java:28)
Linking the file failed with exit status 1


I wanted to know if they knew the reason it was given.
And if you had to configure the Bluetooth device or something.

From already thank you very much.



I'm using:
- Jdk-6u25-windows-i586
- Lejos_nxj_0.9.0
- Eclipse
- Win 7--64

[skoehler]

You added the PC-side libraries to an NXT project or something like it.
Please create a leJOS NXT project and don't add pccomm.jar etc. to the project's build settings. Those libraries are only for leJOS PC projects.

[matthias]

For me it looks the other way arround:
trying to start an pc-programm as an nxt-programm...
well: we are sure, that there is some mixup in the classpath used.

[nikita190]

You added the PC-side libraries to an NXT project or something like it.
Please create a leJOS NXT project and don't add pccomm.jar etc. to the project's build settings. Those libraries are only for leJOS PC projects.

I am using the nxt-project, and I removed all. Jar, leaving only the clasess, but using NXTConnector, I need the pccomm.
and the program continues throwing the same error.

For me it looks the other way arround:
trying to start an pc-programm as an nxt-programm...
well: we are sure, that there is some mixup in the classpath used.

I tried both types of projects. And with the type pc-poyect I have not result, I think it may be, as this type of project works directly with the brick via USB.

[skoehler]

You added the PC-side libraries to an NXT project or something like it.
Please create a leJOS NXT project and don't add pccomm.jar etc. to the project's build settings. Those libraries are only for leJOS PC projects.

I am using the nxt-project, and I removed all. Jar, leaving only the clasess, but using NXTConnector, I need the pccomm.
and the program continues throwing the same error.

Only classes.jar and no pccomm.jar - that's the right setup. The pccomm.jar is for connecting to the NXT from the PC via USB or Bluetooth. It's a library that runs on the PC only. Hence the name PCcomm.jar.
NXTConnector does not exist in classes.jar. It is currently not part of our NXT-side API. However, classes.jar contains everything you need to work with the USB and Bluetooth devices of the NXT brick.

BTW: connecting from the NXT to the PC is not possible. It has to be the other way round. (There are several threads in this forum, where Andy explains why that is the case).

Please take a look at the pcsample BTSend and the sample BTReceive.

For me it looks the other way arround:
trying to start an pc-programm as an nxt-programm...
well: we are sure, that there is some mixup in the classpath used.

I tried both types of projects. And with the type pc-poyect I have not result, I think it may be, as this type of project works directly with the brick via USB.

USB and Bluetooth.

[nikita190]

For me it looks the other way arround:
trying to start an pc-programm as an nxt-programm...
well: we are sure, that there is some mixup in the classpath used.

I tried both types of projects. And with the type pc-poyect I have not result, I think it may be, as this type of project works directly with the brick via USB.

USB and Bluetooth.

in pc-project, as you can make the connection via bluetooth.?

[skoehler]

Using a PC-Project, you can write a software that runs on the PC and connects to the NXT via Bluetooth or USB.

[nikita190]

Using a PC-Project, you can write a software that runs on the PC and connects to the NXT via Bluetooth or USB.

I tried the code and work without any problem , thanks, I will continue working on the basis of these
and thanks so much for always answering