 | | Re: linux USB driver.
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(...) Are you sure you got the usbcore module? I'm also not quite sure it will work with 2.4.9 . Jürgen (23 years ago, 4-May-02, to lugnet.robotics.rcx.legos)
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| | Differential?
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Was wondering if anyone knows of a way to drive 2 axles together. What i mean is, using 2 motors and a differential or some other gear mechanism have them both move forward, both backward, or in opposite directions. I'm sure this has been done (...) (23 years ago, 4-May-02, to lugnet.robotics)
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| | Re: Co-operative Multi tasking in pbforth 2.1
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Hi Ralph Thanks for you reply. I have just started into the article on background monitoring, its great. I am looking forward to your articles on hooking into the one millisecond timer and use of using John Barnes' ultrasonic sensor. I was going to (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.pbforth)
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| | BrickFest 2002 Registration
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The volunteer organizers would like to officially announce that (URL) has been updated and registration is now online. BrickFest 2002 July 19-21 Washington DC(Arlington, VA) George Mason University - Arlington Campus When you register make sure you (...) (23 years ago, 3-May-02, to lugnet.events.brickfest, lugnet.announce, lugnet.org, lugnet.robotics.events) !!
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| | Re: linux USB driver.
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I've just upgraded to the kernel 2.4.9-31 and tried to compile this driver. I get the following errors: [root@kelcsts38b usb_lego]# make install /sbin/modprobe -r usb_lego cp usb_lego.o /lib/modules/2.4.9-3...rivers/usb /sbin/modprobe usb_lego (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.legos)
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| | Re: sys_timer
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(...) Yes. It is updated from an interrupt routine that fires every 1 ms (IIRC). However.... (...) wait_event is only accurate to 20ms or so, depending on what your other tasks do. So your timing is very accurate, but you're not timing what you (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.legos)
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| | Re: FetchBot instructions now available
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I'd like to see build instructions for your Calipers. I can just about figure it out from the pictures, but I can't figure out the depth gauge. (...) (23 years ago, 3-May-02, to lugnet.robotics)
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| | Re: Current Makefile logic fails for nonNT Windows OS
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Taking a second look at this and noticing some past post about this issue with WinXP ((URL) a much cleaner code might look like the following # # WindowsNT/Cygnwin, test against several values: # ifneq (,$(findstring $(OSTYPE),cygwin32 cygwin (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.legos)
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| | RE: Co-operative Multi tasking in pbforth 2.1
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Phil, I have some hooks in the current version of pbForth that you can use to implement cooperative multi-tasking. Have you read the article on implementing a background monitor to check for button presses? It's at: (URL) I was going to write (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.pbforth)
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| | Current Makefile logic fails for nonNT Windows OS
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I am compiling under windows 98 using cygwin version 1.3.10. In Makefile.common (/legOS-0.2.6,/legOS....2.6/util) the logic to determine whether the OS is a windows system fails due to the fact that uname returns CYGWIN_98-4.10. I submitted a bug (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Lego sensor or Radar ?
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I would add another question to Steve's valuable list. Do you really want to do tracking? With one or two degrees of freedom, ie; azimuth or azimuth and elevation. IF that's what you're trying to do, then your sonar/radar sensor is going to have to (...) (23 years ago, 3-May-02, to lugnet.robotics)
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| | Accurate msleep and timeslicing - was Re: sys_timer
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"Michael Obenland" <obenland@t-online.de> wrote in message news:GvJ5vD.7MC@lugnet.com... <snip> (...) switch. (...) I made some modifications to the tm_sleep_wakeup that allows high priority tasks to wake up at exactly the time specified for msleep (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.legos)
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| | Re: sys_timer
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(...) Yes. (...) That is right. (...) It does, actually. The timer itself counts the millisec. But if you do a wait_event() call, your running program gives up its time slice, the OS waits for the event and then continues your task with the next (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.legos)
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| | Programming LEGO Mindstorms with Java
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Just a quick post to let anyone who's interested in this book and hasn't got it yet that my company has this on offer at 25% off RRP for the next 7 days. Probably not much use to anyone outside Europe due to shipping charges, but I thought I'd let (...) (23 years ago, 3-May-02, to lugnet.books, lugnet.robotics)
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| | Co-operative Multi tasking in pbforth 2.1
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I am have been programming the brick in nqc but have started to find this a little restrictive. I have just started using pbFORTH. Would anyone be able to help me with a sample script to impliment Multi-Tasking. I am using this to set up an "infra (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.pbforth)
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| | sys_timer
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I recently adopted legOS as my development environment and I have to say I tremendously impressed. Thanks to everyone who has worked so hard on it. It is really a first class, grade A product. Is sys_timer accurate to within 1 ms? unsigned long (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Lego sensor or Radar ?
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(...) First some questions that will make the replies from the list more relevent: * How fast does the target move? * How big is the target? * How far away is the target - typically? * Can you attach things like lights or infra-red LED's to the (...) (23 years ago, 4-May-02, to lugnet.robotics)
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| | Re: IR tower for ordinary infrared communication
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(...) I don't think this will work. There are two kinds of IR comms out there, one kind is called 'IRda' and is used for computer-to-computer types of communications and the other kind is the sort that TV remotes use. The Lego adaptor is of the (...) (23 years ago, 4-May-02, to lugnet.robotics)
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| | RE: Spirit.OCX and VC++
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: multipart/alternative; boundary="----_=_Nex....F13B3C56" Content-Length: 6368 (23 years ago, 3-May-02, to lugnet.robotics)
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| | RE: Spirit.OCX and VC++
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: multipart/alternative; boundary="----_=_Nex....E2010E76" Content-Length: 2793 (23 years ago, 3-May-02, to lugnet.robotics)
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