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 Robotics / RCX / *6075 (-20)
  Re: Robot Ant and Data logging
 
(...) Hi Mike, Unfortunately there is no possibility under Robolab 2.5 that the RCX might itself access the data collected in the log. Robolab 2.5 is based on LEGO-firmware 2.0, which has many new features, but not this one. If you want to do your (...) (22 years ago, 4-Apr-02, to lugnet.robotics.rcx.robolab)
 
  Robot Ant and Data logging
 
HI, I am building a robot ant and using a light sensor to detect lines to follow. However, the algorithm I am using must not be deterministic; i.e. I need to do a sensor sweep and build a graph of the relative light levels at the left, front and (...) (22 years ago, 4-Apr-02, to lugnet.robotics.rcx.robolab)
 
  Re: Need help with NQC
 
"Russell Newman" <victoreden@netzero.net> wrote in message news:GtLuCA.38p@lugnet.com... (...) RCX (...) In what way is it misbehaving? When backing up, it only backs up for 3/4 of a second. Is that enough? When turning, it only turns for a maximum (...) (22 years ago, 4-Apr-02, to lugnet.robotics.rcx.nqc)
 
  Error Message
 
Hi. Can anyone help me with a problem I'm having. I'm writing a fairly simple program in NQC and when I compile I get an error saying "undefined variable SENSOR_LIGHT" The line that generates this error is simply: SetSensor(SENSOR_1, SENSOR_LIGHT); (...) (22 years ago, 4-Apr-02, to lugnet.robotics.rcx.nqc)
 
  RL 2.5 and 2.0 incompatibility
 
A cautionary note for situations where RL 2.5 and 2.0 co-exist as in schools which are in transition to upgrading their software. Be aware that if an RCX has RL 2.5 firmware, programs downloaded from RL 2.0 will only go to slot #3. So additional (...) (22 years ago, 3-Apr-02, to lugnet.robotics.rcx.robolab)
 
  Re: LeJos threads / sleep() takes too long
 
The priority mechanism used in lejos is the same as that specified in the Real Time Specification for Java (RTSJ): Threads of a higher priority will absolutely block threads of a lower priority as long as they remain runnable. The sensor listener (...) (23 years ago, 1-Apr-02, to lugnet.robotics.rcx.java)
 
  Re: Using legos-devel@lists.sourceforge.net VS posting at lugnet.robotics.rcx.legos
 
Joseph Woolley <jwoolley@spamblock....ht.rr.com> wrote in message news:Gtw6sr.DC9@lugnet.com... (...) [snip] (...) the (...) next (...) Joseph, How did you sign up? I looked around but found no solution to this. I even tried the old subscribe in (...) (23 years ago, 1-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: Using legos-devel@lists.sourceforge.net VS posting at lugnet.robotics.rcx.legos
 
"Ed Manlove" <emanlove@ieee.org> wrote in message news:Gtw4Gt.421@lugnet.com... (...) is (...) idea (...) to (...) this (...) I understand and agree with you here. However, I was able to sign up for the maillist with no problems. It appeared to be (...) (23 years ago, 1-Apr-02, to lugnet.robotics.rcx.legos)
 
  Using legos-devel@lists.sourceforge.net VS posting at lugnet.robotics.rcx.legos
 
As mentioned in the RLS doc ((URL) there is mention of communicating with the sourceforge maillist legos-devel@lists.so...forge.net. I don't think this is the greatest idea for a couple of reasons. One it is tough to get signed on. Luis (for (...) (23 years ago, 1-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: "Want to get started with legOS" needs help again
 
Max, I believe the source of this is (URL) as you said should not really be there because of B20 (which is actually what I have been using for reasons below) and because these instructions have been superceded by (URL) problem here is the different (...) (23 years ago, 1-Apr-02, to lugnet.robotics.rcx.legos)
 
  Re: "Want to get started with legOS" needs help again
 
Aaagh! Cygwin B20! That's about 4 years old, IIRC. The current version is 1.3.10, soon to be 1.3.11. Get it from www.cygwin.com - and where did you manage to find B20 ? That site should either remove it or mark it as of historical interest only. (...) (23 years ago, 30-Mar-02, to lugnet.robotics.rcx.legos)
 
  Re: "Want to get started with legOS" needs help again
 
(...) It means very little. The first time you run Cygwin, it complains about the missing tmp directory. In order to get around this, create a directory 'tmp' from within Cygwin's bash shell using the command: mkdir /tmp This will get rid of that (...) (23 years ago, 30-Mar-02, to lugnet.robotics.rcx.legos)
 
  "Want to get started with legOS" needs help again
 
I have followed all the stuff on the webpages but when I click a Cygwin B20 in the start menu it says bash.exe: warning:-coukd not find /tmp. please create! BASH.EXE-2.02$ what does this mean and how do I fix it (23 years ago, 30-Mar-02, to lugnet.robotics.rcx.legos)
 
  Re: RIS parts questions
 
(...) The RCX 1.0 in RIS 1.0 has a jack, the RCX 1.0 in RIS 1.5 doesn't (unfortunately, I have two of them). The 2.0 on the RCX 2.0 is purely for decoration, there's no user visible difference whatsoever to the RCX 1.0 without the jack. Jürgen (23 years ago, 30-Mar-02, to lugnet.robotics, lugnet.robotics.rcx)
 
  Re: Makefile patch
 
Idiotic listserver! Here's the patch inline: diff -ru cvs-legOS/Makefile.common work-legOS/Makefile.common --- cvs-legOS/Makefile.common Sun May 27 18:01:56 2001 +++ work-legOS/Makefile.common Thu Mar 28 21:26:06 2002 @@ -11,15 +11,14 @@ # # -# (...) (23 years ago, 29-Mar-02, to lugnet.robotics.rcx.legos)
 
  Re: Proposals, Bug Fixes, etc and tracking them with SourceForge
 
(...) Please, post your diff file on sourceforge: (URL) Paolo. --- "If you don't care, your customers never will." - Marlene Blaszczyk (23 years ago, 30-Mar-02, to lugnet.robotics.rcx.legos)
 
  Re: Proposals, Bug Fixes, etc and tracking them with SourceForge
 
<snip> > > I retrieved the latest from CVS and had problems building. I had to remove > the "\" from the end of some #define statements. I guess the gcc version I > have doesn't support (multi-line) #defines using "\" or isn't configured to > allow (...) (23 years ago, 30-Mar-02, to lugnet.robotics.rcx.legos)
 
  Re: Want to get started with legOS
 
(...) Russel. I've just added Paolo's writeup of the installation instructions for the windows platforms. Please let me know of any corrections needed to these pages and how you fared. Good luck, Stephen legOS release manager -- stephen@debian.org (...) (23 years ago, 30-Mar-02, to lugnet.robotics.rcx.legos)
 
  Re: Want to get started with legOS
 
Russell, This link is to the legOS Documentation: (URL) Instalation instructions are in the How to section a few pages in. Happy trails Chris (...) (23 years ago, 30-Mar-02, to lugnet.robotics.rcx.legos)
 
  Want to get started with legOS
 
I right now program in NQC but I want some thing better and I heard that legOS is really good. I,m runing windows 95 and I want to get started with legOS. I heard that you need something called "egcs" which is a "cross compiler" and I also need (...) (23 years ago, 30-Mar-02, to lugnet.robotics.rcx.legos)


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