 | | RotationNavigator accuracy
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Hi, I just try the rotation navigator class and have some problems with turning accuracy. My robot is a tank with treads and moving without turning works well, travel() moves the correct distance. Turning with rotate() or gotoAngle() is problematic. (...) (23 years ago, 13-Jan-04, to lugnet.robotics.rcx.java)
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| | Re: Driver for Linux USB Tower
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Try to read this page : (URL) contained a bug introduced in version 2.4.21 which will lock the kernel if used with legousbtower driver. Linux version 2.4.22-pre3 and above include the fix and are safe to use. usb-ohci was fixed in Linux version (...) (23 years ago, 2-Jan-04, to lugnet.robotics.rcx.java)
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| | Re: Driver for Linux USB Tower
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(...) hi, I got some warnings when I tried to install the driver for the legousbtower again. Now I used the driver, which is provided by the lejos-software (I didn't download the driver from (URL) this time). Here are the warnings: # make cc (...) (23 years ago, 1-Jan-04, to lugnet.robotics.rcx.java)
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| | Driver for Linux USB Tower
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(For German version see below, please) English version: hi, I want to use lejos with Linux. I'm using the 2.4.20-4GB-athlon kernel. I downloaded the Lego usb Tower driver from (URL) I installed the driver it was generated the /dev/usb/lego0 device (...) (23 years ago, 28-Dec-03, to lugnet.robotics.rcx.java)
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| | Re: Opening COM port error
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(...) Tyler, Happy to be of help! Regarding Garbage Collection, I'm not usually one to criticise without being able to suggest a better alternative. In this case, I think most GC systems could be improved by mimicking the concept of "smart pointers" (...) (23 years ago, 30-Nov-03, to lugnet.robotics.rcx.java, lugnet.off-topic.geek)
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| | Re: Opening COM port error
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In lugnet.robotics.rcx.java, Chris Phillips wrote: Hahaha, Your passionate condemnation of GC makes entertaining reading in light of the amount of work I have to do with lejos,Java,C++, etc for my final year undergraduate project. I will certainly (...) (23 years ago, 30-Nov-03, to lugnet.robotics.rcx.java)
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| | Re: Opening COM port error
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(...) Ahh, Garbage Collection. <rant soapbox="on" eyes="glazed" dinosaur="true"> In my mind the worst thing that has happened to modern compiler languages is excessive reliance on Garbage Collection. This is analogous to leaving half-empty soda cans (...) (23 years ago, 29-Nov-03, to lugnet.robotics.rcx.java)
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| | Re: Opening COM port error
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(...) Hi Chris, Thanks for your reply. You're reply confirmed my suspicion about leaving the port object lying around. I think I'll try your first suggestion of 'deleting' the port object at the end of each routine. I hope you dont mind me asking (...) (23 years ago, 29-Nov-03, to lugnet.robotics.rcx.java)
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| | Re: Opening COM port error
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(...) This probably is an issue of leaving your Port object around after you're done using it. You have a memory leak in each routine, because you call 'new RCXPort();' without ever calling 'delete port;' on the object. You should definitely call (...) (23 years ago, 28-Nov-03, to lugnet.robotics.rcx.java)
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| | Opening COM port error
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Hi guys, First of all, thanx Brian, but I managed to solve the weird firmdl.bat problem by fooling around with different batteries and IR range levels. Secondly,I'm trying to send data packets to the RCX through java methods called from a C++ (...) (23 years ago, 28-Nov-03, to lugnet.robotics.rcx.java)
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