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 Robotics / RCX / *3510 (-20)
  Re: LinuxPPC and "No response from RCX" problem
 
(...) Did you set the correct permissions for the serial ports (normally they're only accessible by root under Linux) Do a chmod 777 for /dev/ttyS0 (24 years ago, 3-Nov-00, to lugnet.robotics.rcx.nqc)
 
  LinuxPPC and "No response from RCX" problem
 
Hi, I recently bought an RIS kit and from my Windows box it works fine. When I try using LinuxPPC off my PPC Amiga I get the following: [root] /home/chris/nqc/nqc-2.2.r2 >bin/nqc -v -raw 10 Tx: 55 ff 00 10 ef 10 ef Rx: 55 ff 00 10 ef 10 ef Tx: 55 ff (...) (24 years ago, 3-Nov-00, to lugnet.robotics.rcx.nqc)
 
  Programmable RCX display
 
One of the missing "nice-to-have" features with the RCX is a programmable display. It would be great if LEGO implemented this feature. One way could be to attach a number 0 - 6 for each segment of the four 7-segment numbers and set a corresponding (...) (24 years ago, 3-Nov-00, to lugnet.robotics.rcx.nqc)
 
  Re: Still JAVA and LNP....
 
(...) There is no way to passively listen to the world. This is good for batteries but bad in all other ways. So, your listening code should send a keep-alive on a regular basis to keep the tower from dying. No way around it :| Luis ---...--- "It's (...) (24 years ago, 3-Nov-00, to lugnet.robotics.rcx.legos)
 
  Re: Motor Sticking
 
(...) I have about 16 motors and I have had, out of the box, 6 motors DOA... Other friends have more then 20 motors with 0 failures... I can only guess that I'm cursed with motors. S@H will replace ALL your dead motors... They did for me. Once when (...) (24 years ago, 3-Nov-00, to lugnet.robotics.rcx, lugnet.technic)
 
  Re: Still JAVA and LNP....
 
Umm in response to my own message, would someone be so kind as to explain the following <g> : // return (short)(a + (b << 8)); return (short)(a % 256); If I use the bottom line, discounting variable b, then my checksum is correct...otherwise it (...) (24 years ago, 3-Nov-00, to lugnet.robotics.rcx.legos)
 
  Still JAVA and LNP....
 
hey all :) Sorry to bother again, but after limited uccess with getting JAVA to cope with LNP, I've run into some (hopefully) simple problems, I'm having major problems with the checksum routine, this routine give me huge integer nnumbers rather (...) (24 years ago, 3-Nov-00, to lugnet.robotics.rcx.legos)
 
  Re: ttyS1 corrupted after using legos
 
(...) Frank, I'm also using Linux (Red Hat), and had a similar problem. After using the IR tower, my modem wouldn't work on the same serial port. I solved the problem by not sharing the serial port 8?) which also allows me to connect while using the (...) (24 years ago, 2-Nov-00, to lugnet.robotics.rcx.legos)
 
  Re: RCX: Loose Assembly?
 
(...) Oh oh. Sounds like a fault. You'd better phone LEGO and get it replaced. Otherwise you'll be unhappy for life. NONE of mine do anything like that. They are, and pardon the pun, built like a brick. Dean -- Coin-Op's For Sale!: (URL) Lego (...) (24 years ago, 2-Nov-00, to lugnet.robotics.rcx)
 
  Re: Auto Shut Off
 
(...) Ok, to set the time out with RCX code you must hit the Oroboros (the sideways 8) and it will never shut off. This can be found under "Getting Started" then the far Right option on the bottom. Hope that helps. Dean -- Coin-Op's For Sale!: (URL) (...) (24 years ago, 2-Nov-00, to lugnet.robotics.rcx)
 
  Re: Auto Shut Off
 
(...) If I remember well there is an option on the RCX Setup (Advanced) page that will allow you to modify (and also switch off) the auto off delay. Jan (24 years ago, 2-Nov-00, to lugnet.robotics.rcx)
 
  Re: ttyS1 corrupted after using legos
 
(...) Is the only program you are using to download things firmdl3? (...) Try also stty -a < /dev/ttyS0 and/or stty -a < /dev/ttyS1. (...) As far as I know, firmdl3 does not download .lx files. I think there is a separate program for that. dll (...) (24 years ago, 2-Nov-00, to lugnet.robotics.rcx.legos)
 
  Re: Motor Sticking
 
Lego customer service is really good about this (as has been written before on this newsgroup). This is a known problem with this motor. On the suggestion of the various posters, I called up Lego Customer Service (number listed on their web site and (...) (24 years ago, 2-Nov-00, to lugnet.robotics.rcx, lugnet.technic)
 
  Re: Motor Sticking
 
(...) them (...) hand. (...) When I first got my RIS, on a finny sunny christmas morning :) I eagerly built my first bot, only to watch it veer off to the right, at first I was puzzled assuming I'd messed up the power settings, but eventually I (...) (24 years ago, 2-Nov-00, to lugnet.robotics.rcx, lugnet.technic)
 
  ttyS1 corrupted after using legos
 
Hi there, I donwloaded, compiled and used legOS 2.4 which worked all very fine. But since then, I cannot use the serial port anymore that I connected the IR-tower to. Maybe anyone has encountered the same problem and knows a solution:) I am no (...) (24 years ago, 2-Nov-00, to lugnet.robotics.rcx.legos)
 
  Re: Motor Sticking
 
Gaurav, Certainly isn't in my case, these motors are stalled so bad I can't get them to move at all now unless I stick a 24t gear on them and turn them by hand. Even then it requires considerable force. The cables I've tried on these motors work (...) (24 years ago, 2-Nov-00, to lugnet.robotics.rcx, lugnet.technic)
 
  RCX: Loose Assembly?
 
Howdy, I purchased the RIS for the first time on Saturday, Yeah! When I pick up the RCX, out of the box, the green back cover fell away from the unit. I'm so happy to find that that is where the batteries go! But I'm seeing this kind of thing all (...) (24 years ago, 1-Nov-00, to lugnet.robotics.rcx)
 
  Re: Auto Shut Off
 
(...) If you have NQC, just issue the following command: nqc -sleep 0 I'm not sure if there's any way to do this from RCX Code or Robolab. Dave (24 years ago, 1-Nov-00, to lugnet.robotics.rcx)
 
  Re: Auto Shut Off
 
(...) If you set the delay to zero, the RCX will not shut off. I don't remember if the RCX Code software can set such a delay, but I know for certain you can send an opcode to do it. There are many documented ways to send opcodes if you need to go (...) (24 years ago, 1-Nov-00, to lugnet.robotics.rcx)
 
  LNP and the LEGO remote
 
Luis previously wrote: > I'd actually really like to include Chris's patch in the official tree, > but I'm informed by folks with more clue about the networking stuff than > me that switching the parity bit would probably break some LNP stuff. I (...) (24 years ago, 1-Nov-00, to lugnet.robotics.rcx.legos)


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