 | | Re: LEGO Mindstroms 2.0: Alternative transmission techniques
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(...) Andreas, IR struggles to keep contact in one room, so you need an RF wireless solution. It is possible to include a PDA with Bluetooth or WiFi support as part of your robot, and communicate between the PC and the PDA over the RF protocol, and (...) (24 years ago, 20-Oct-02, to lugnet.robotics.rcx.java)
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| | LEGO Mindstroms 2.0: Alternative transmission techniques
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Hi, we want to build a Roboter with the following characteristics and under the following conditions: The roboter should be able to drive through a whole building by itself. During his drive he detects obstacles, walls etc. Everything he detects he (...) (24 years ago, 19-Oct-02, to lugnet.robotics.rcx.java)
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| | Re: remote program activation
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Hello Jürgen (...) Thanks, I'll check that out. (...) For the same reason as lejos allows to link/upload up to 5 different programs and the rcx has a program select button! :-) No honestly, if I have a collection of short independent programs which (...) (24 years ago, 25-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: remote program activation
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Hi Kaspar, (...) sending it the remote control sequence for button P1 it will start the currently selected program (not necessarily number 1). There was a more detailed discussion about this on the lejos mailing list a while ago. It's like this (...) (24 years ago, 25-Sep-02, to lugnet.robotics.rcx.java)
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| | remote program activation
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Does anyone of you know, whether it is possible (with a special byte sequence for example) to send a command to the running LeJOS JVM on the RCX which tells it to run a certain uploaded program? Or, if not, is it maybe possible to call a program x (...) (24 years ago, 25-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: RCX <-> PC communication
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(...) Kaspar, There is a bug with serial towers with RCXPort in lejos 2.0. This causes the problem you are seeing. There is a fixed version in (URL) fixes RCXPort, but I haven't put the fix in the LNP versions yet. I only have a USB Tower, and (...) (24 years ago, 16-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: RCX <-> PC communication, more details
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Hi Kaspar, Thanx for the information. In the Lejos-discussion mailing list (Sept 13), Lawrie Griffiths wrote: "A timeout of 100 milliseconds or more should ensure that it reads all the bytes in one message." Looks like it confirms what you (...) (24 years ago, 16-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: RCX <-> PC communication, more details
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(...) Great, I just had too much time at hand, so I could already test the hypothesis above. Great, to be able to post a followup to my own message within half an hour... Ok, here it comes: The PC __IS__ swamping the RCX when using the LNP protocol. (...) (24 years ago, 16-Sep-02, to lugnet.robotics.rcx.java)
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| | RCX <-> PC communication, more details
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Thanks for the three of you (Francois, Roger and Lawrence) who have answered to my questions. I was asked to state some more details, which I'll do here: I am working under linux (SuSE 7.3) and since the linux version of java does not yet support (...) (24 years ago, 16-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: RCX <-> PC communication
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(...) Lawrie Griffiths asked me to forward the following to you: RCXPort should be about twice as fast as RCXF7Port. Do you have a serial or USB tower? I am concerned that you don't get complete reliabilty with RCXPort - I do with a USB Tower. (24 years ago, 14-Sep-02, to lugnet.robotics.rcx.java)
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