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 Robotics / RCX / *5760 (-20)
  "Local Positioning System" for lego-vehicles with mice
 
Hello NG, i try to develop something like a local position system with a optical RF mouse (or other mouse-devices). If someone want to join or help for this little project please mail me. A very first result you can see at (URL) (23 years ago, 1-Feb-02, to lugnet.robotics.rcx.legos)
 
  Re: Downloading Firmware
 
(...) I have an E-machine that uses Windows 98. Mark (23 years ago, 31-Jan-02, to lugnet.robotics.rcx)
 
  Re: Downloading Firmware
 
(...) Maybe, but I'd rather incriminate motherboard/OS/USB drivers. What do you use ? Philo www.philohome.com (23 years ago, 31-Jan-02, to lugnet.robotics.rcx)
 
  Integer-based arctangent2 function for anyone interested
 
After scouring the internet for several days and even utilizing Jack Crenshaw's wonderful book "Math Toolkit for Real-time Programming", I was unable to find a good, general iatan2(y,x) function. Note that this is the atan function that takes as (...) (23 years ago, 31-Jan-02, to lugnet.robotics.rcx.legos)
 
  Downloading Firmware
 
I am trying to download the firmware to the ris 1.0 & 2.0 using the usb tower but it won't finish, the rcx only counts to 200-300 & is different all the time. then it says the tower is disconnected, when i didn't even touch it. BUT the serial tower (...) (23 years ago, 31-Jan-02, to lugnet.robotics.rcx)
 
  Errors compiling egcs
 
Hi, I've just downloaded and attempted to install the binutils, egcs, and LegOs on my computer as per the instructions at (URL) only difference between these instructions and what I have done is the path to where the software is to be installed. (...) (23 years ago, 31-Jan-02, to lugnet.robotics.rcx.legos)
 
  Re: which Linux distro?
 
(...) Good Idea ! I had no problem using legOS when using a RedHat 7.1, Mandrake8 or a Conectiva 6.0, As far as I remember, there is a Debian package available for legOS. So... no matter which distribution you'll use, it will be far better than (...) (23 years ago, 31-Jan-02, to lugnet.robotics.rcx.legos)
 
  Re: Control the RCX from AppleScript
 
(...) Ahah! Check out the following SourceForge projects - still sadly in the VERY early stages! - for some potentially good news: (URL) too have USB devices that have been rendered useless by OS X and companies not wanting to bother upgrading (...) (23 years ago, 31-Jan-02, to lugnet.robotics.rcx.nqc)
 
  which Linux distro?
 
Hi, I am thinking of moving over to Linux, partly for legOS reasons (Lnp easier to set up for a start), but partly for other reasons (free software, morality etc, ie the usual waffle.) I am considering Redhat 7.2, Suse 7.3 personal or Suse 7.3 (...) (23 years ago, 31-Jan-02, to lugnet.robotics.rcx.legos)
 
  Re: Control the RCX from AppleScript
 
Sorry for the quick updates, but Robot Controller 1.4b2 is now available! This adds the ability to control several motors simultaneously in AppleScript. I have also posted an example AppleScript Studio project which uses Robot Controller to drive a (...) (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.nqc)
 
  Re: Incorrect result
 
(...) Yes, this is what happens when one is used to just making everything long and not considering overflows. Even worse was that I was doing the math on the computer's calculator, but not looking at the intermediate result, just typing in the (...) (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
 
  Re: BricxCC release 3.3.3.4
 
hi Guido, I just a very little time also the comming week, but my first impression is very good !! Thanks very much. And you said you weren't a fast programmer ;-) (...) It sound great indeed. (...) I couldn't get it to work, but maybe I did (...) (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.nqc)
 
  Re: Incorrect result
 
(...) 256 * 128 = 32768, one higher as the biggest positive integer value. The cast to long would help, but your cast is too late. I have not tested, but I think rc += ( (long)b->magnitude * (long)TA_costable[...] ) >> 7; will help. Try output in (...) (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
 
  RE: Incorrect result
 
<snipped code> (...) Robert, this is a classic problem with ranges of singed numbers in C rx = (long)(a->magnitude * TA_costable[a->direction]) >> 7; I don't have an RCX in frot of me, but I think you need to cast a->magnitude to long before the (...) (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
 
  Incorrect result
 
This problem, unlike the other, is definitely not a result of my eyes/brain being tired or something. I thoroughly displayed every value before and after evaluation and the result is ***WRONG***. Here is the code and the values: typedef struct { int (...) (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
 
  RE: true tcp/ip on the RCX
 
Hi :) Just out of curiosity, check this thread from Jan/2000: (URL) mc. (...) (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
 
  Re: true tcp/ip on the RCX
 
(...) <snip> (...) <snip> Yeah, I've got a server farm of 3 million RCXs. Each hosts errrrr... 1 page. ;-) Great job Olaf! Steve Martin IndyLUG (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
 
  Re: true tcp/ip on the RCX
 
"Olaf" <christ_o@gmx.de> schrieb im Newsbeitrag news:Gqo0BH.E9t@lugnet.com... (...) calls (...) <---snip----> Hi Olaf, i think it´s the wrong way to blow up the legOS kernel with a ip-stack, because you lost valuable RCX memory to legOS (...) (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.legos)
 
  Re: Control the RCX from AppleScript
 
The lego camera will not work with imovie, I'm afraid. Imovie only works with DVcameras, not with webcams. I think the lego camera is actually one of the logitech cameras inside, so there may be a MacOS 9 driver, but not a MacOS X driver. I don't (...) (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.nqc)
 
  Re: Control the RCX from AppleScript
 
(...) Well, that helps some anyway...I'll cross post your info into the thread where we were last talking about this...I'm still waiting to see if anyone has tried opening iMovie with the LEGO camera plugged in, to see if will auto-recognize it...no (...) (23 years ago, 30-Jan-02, to lugnet.robotics.rcx.nqc)


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