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 Robotics / RCX / *1785 (-20)
  Re: legOS documentation
 
(...) well, you could count on me as note-writer for lnp and maybe other stuff. I feel i won't have time to help in the 'orderly fashion thing', as of my experience this kind'a work can get really time-consuming if one want's to get it well done. (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.legos)
 
  Re: Light sensors
 
(...) I looked closer at the readings, and the readings are okay for light backgrounds. For a dark one, however, the value is only half of the time the right one - for the other half 0x1F0 gets added to it... Anyone ideas why this is happening? (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.legos)
 
  Re: legOS documentation
 
(...) Not many, I just begun to think about it. My first idea is to have a site where people could get in and write notes, comments or ideas aboiut each API or module. And have a small team that will gather all the information and write it down in a (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.legos)
 
  Re: legOS documentation
 
(...) Hello Vlad, maybe i could help a little, do you have any ideas about the actual format and how we could organize things ? BTW, is seems to be impossible to email you directly -- is that intentionally ? --Martin (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.legos)
 
  Re: legOS documentation
 
Vlad (...) Yes I am interested in there being some documentation. Unfortunately I am just starting out with legOS so will not be able to help at present. Hopefully in the next few months I will be up to speed and would be more than happy to help (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.legos)
 
  legOS documentation
 
Hi! Just my 2-pence thoughts about the topic... I suppose nobody will argue with me that legOS isn't well documented, as it is now. Considering that legOS is still rather user-unfriendly, documentation is very important. someone said Markus is (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.legos)
 
  Re: legOS timers
 
Why don't you use the system timer (sys_time)? With one timer is enough. Use relative times instead of absolute timers... Toni Vlad Dumitrescu <vladdu@NOSPAM.hotmail.com> wrote in message news:Fp1BJI.E4M@lugnet.com... (...) timers? (...) handlers (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.legos)
 
  Re: legOS timers
 
(...) Mmm, yes. I was thinking about things like SetTimer and GetTimer, so that wakeup handlers can be used... as things are now (if I am not wrong) one has to directly work with the ROM... /Vlad (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.legos)
 
  Re: Curious problem with download
 
(...) The iMac, iBook and G4 all work 100% fine with MacNCQ and the Keyspan single port 'PDA' usb/serial adaptor. It just appears in the pull down menu. The keyspan RS422? 'two' ADB style port usb/serial adaptor does not work for me; unless I use a (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.nqc)
 
  lego photo scanner...
 
has anyone thought of an advantage to using two light sensors in the basic photo scanner robot that people have built. I'm working on one right now (mostly the vb programming right now for the pc side and pqc for the rcx). i have two kits to use, so (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx)
 
  Black
 
Since I am currently working on line following, I did some tests with the Lego active light sensor. I mounted one on a small test cart pointing down a bit more than 1/8 inch above the "ground". The 1.5 test pad reads white 57 black 38 green 46 I (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx)
 
  Re: Curious problem with download
 
(...) Er, no I was thinking of the PCI cards that give up to 4 serial ports; KeySpan used to make them. They were a short PCI card with two or four serial ports, which used a custom extension to route SerialToolBox calls to the 'phantom' serial (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.nqc)
 
  Re: Curious problem with download
 
(...) I would have ascribed it to the USB to serial converter, but I also see this on the Sun with a real serial port. This is what makes me think it's a problem with my RCX or IR tower. Thanks, -Pete P.S. What you are thinking of is the stealth (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.nqc)
 
  Re: legOS timers
 
(...) You nicer than msleep() and sleep()? --Ben (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.legos)
 
  Re: Curious problem with download
 
(...) downloading (...) I don't see any strange behaviour here; the hinky USB-to-serial interface is going to be your culprit. I had no problems using NQC on my PowerCenterPro (PowerComputing Macintosh clone) with a direct serial interface, but when (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.nqc)
 
  Curious problem with download
 
I just got Mindstorm set, and since I do not have a PC, NQC seemed like a great place to start. I tried Mac NQC and did not get very far downloading the RCX firmware. Every attempt resulted in the IR tower not seeing the RCX. I have a G3 blue and (...) (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.nqc)
 
  Re: LegOS does not work on 1.5 RCX
 
Before anyone replies to my previous message, found the problem. I have a light over my desk and this was interfering with the IR transmission. Turned the light off and moved the RCX a little closer to the tower and hey presto, all OK. Does legOS (...) (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.legos)
 
  LegOS does not work on 1.5 RCX
 
Hi I installed the win version of legOS and downloaded the firmware legOS.srec to both my RCX's. The older RCX from a 1.0 set seems to accept .lx files OK the first time after the firmware is downloaded. The new version will not accept any .lx (...) (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.legos)
 
  more on the rotation sensor
 
I did some more experiments last night. My conclusion is that the majority of apparent 2-state transitions never actually occur (that is: the sensor does not actually travel through 2 states between two consecutive sensor readings). The order of the (...) (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.legos)
 
  legOS timers
 
Hi! Did anyone write any 'nicer' wrapper functions for handling the RCX timers? Or am I blind and can't find them? 8^) /Vlad (25 years ago, 27-Jan-00, to lugnet.robotics.rcx.legos)


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