 | | Re: RotationNavigator accuracy
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(...) I guess it's more hardware related problem turning with tank-style robot is ALWAYS a trouble because tank doesn't have defined centre of rotation. If you imagine the simple robot - two wheels and a castor - there is rotation center well (...) (23 years ago, 14-Jan-04, to lugnet.robotics.rcx.java, FTX)
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| | 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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