 | | Re: vex robotics kit
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(...) I haven't used it, but I thank you for pointing it out. (For others, the link is (URL).) I hate to say it, but this looks like it rather blows the socks off of standard LEGO robotics. The starter kit is $300, which is a 50% pricier, but comes (...) (19 years ago, 21-Jun-05, to lugnet.robotics.rcx, lugnet.robotics.edu, FTX)
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| | Re: dll 'error deleting program' with briskOS-0.9.0
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(...) [snip] (...) [snip] (...) Igor, I just got mine up and running this weekend under Debian (thanks to apt-get / Synaptic). Since you have already successfully loaded firmdl3 this may not be relevant but I had to setup a legotower0 device. sudo (...) (19 years ago, 21-Jun-05, to lugnet.robotics.rcx.legos)
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| | vex robotics kit
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Hi I wonder if anyone has had a chance to use the new VEX robotic kit by radio shack. I am trying to collect the info to evaluate this product vs LEGO RIS + robolab in terms of educational values. ---...--- -------- Best Regards, Elizabeth Mabrey (...) (19 years ago, 20-Jun-05, to lugnet.robotics.rcx, lugnet.robotics.edu)
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| | Re: position calculating for robots
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(...) You don't need advanced math for navigating, but sin and cos for calculating coordinates in an X/Y coordinate system. This you need independently from your steering system. Brickos has no math lib, but there where some posts on this list some (...) (19 years ago, 20-Jun-05, to lugnet.robotics.rcx.legos)
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| | dll 'error deleting program' with briskOS-0.9.0
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Hello, according to informations that brickOS is the most powerfull of all Mindstroms OS's, I have tried to start it. I work with a Linux 2.6 (Fedora Core 3). I have compiled it with rcx-egcs cross compiler C and C++ cross compilers (version 1.1.2) (...) (19 years ago, 19-Jun-05, to lugnet.robotics.rcx.legos)
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| | Re: brickOS-0.9 and 'error deleting program' message
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(...) IR tower inference probably is not the case since I have previously downloaded the whole brickOS system with the firmdl3 program. Only the dll does not work. Just the same, the original Lego Mindstorms sotware works and gets downloaded in the (...) (19 years ago, 17-Jun-05, to lugnet.robotics.rcx)
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| | Re: roboball
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(...) Here's what the kids can do to get started. Build a simple robot with a forward pointing light sensor. Place the activated roboball right in front of the robot and take light readings as the robot moves backwards. This can be done manually or (...) (19 years ago, 15-Jun-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | Re: brickOS-0.9 and 'error deleting program' message
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On Wed, June 15, 2005 12:25 pm, igor podolak said: (...) This sort of thing can happen when there is other IR interference (I'm sure there are other things that can also cause it) Try covering the tower & brick, to shield them from lights in the (...) (19 years ago, 15-Jun-05, to lugnet.robotics.rcx)
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| | brickOS-0.9 and 'error deleting program' message
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I am new to Mindstorms, but not new to computer science. Anyway I am unable to load any program to the RCX robot using the dll. I have built the brickOS system using a egcs (v. 1.1.2) hitachi cross compiler on a Linux platform running the 2.6 (...) (19 years ago, 15-Jun-05, to lugnet.robotics.rcx)
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| | RE: roboball
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Hi Mr Soh, Thank you very much for your input. Would you share your experience and views regarding tackling roboball with the LEGO RCX and light sensors, without other soldering electronic components. I have a bunch bright young 11-14 kids, I want (...) (19 years ago, 15-Jun-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | Re: roboball
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(...) Hi there and welcome to the world of RoboSoccer, It appears you have the Wiltronics (Australia) roboball which looks like this (URL) There is another type by EK (Japan) that looks like this (URL) The Wiltronics roboball has a built-in 9v (...) (19 years ago, 15-Jun-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | Re: roboball
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(...) Hi Elizabeth, The red LED serves only as an on/off indicator. And, as it only functions when the battery is fully charged, it is not a very good one. The rest of the LED's are infrared and invisible to the naked eye. One way to "see" the light (...) (19 years ago, 13-Jun-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | roboball
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Hi, I got a roboball and wished to test it out for my group of kids to do a soccer game. When I first received it, one light bulb was lit. I tested it with the lego light sensor, but no reading. Then I connected it to a 9v . Unfortunately, now, the (...) (19 years ago, 13-Jun-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | Re: Blocking SetUserDisplay?
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(...) In C you would declare a as volatile. Jürgen (19 years ago, 11-Jun-05, to lugnet.robotics.rcx.nqc)
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| | NQC release 3.1r2
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I have released NQC version 3.1r2. The only change from 3.1r1 is a fix to the Spybot FindWorld API function. (URL) Hansen (19 years ago, 10-Jun-05, to lugnet.robotics.rcx.nqc)
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| | Re: Real-world interfacing to RCX: LEDs and magnetic sensor
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(...) The motor outputs give a square wave of 1/8 up to 8/8 of a cycle. You can use a counter running at 8x the cycle frequency to measure how many eighths the output is giving, and light an LED accordingly. For the magnetic sensor, I suggest (...) (19 years ago, 9-Jun-05, to lugnet.robotics.rcx, FTX)
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| | Problem with LDT plugin
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Hi, I'm starting with lejos and I try to use the plugin LDT 1.2.0 for Eclipse 3.0 with Windows XP. When I try to run (Run As > leJOS), I get the message : An internal error occurred during: "Launching". java.lang.IllegalArg...Exception: Path must (...) (19 years ago, 8-Jun-05, to lugnet.robotics.rcx.java, FTX)
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| | Re: navigation and communication
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(...) We have worked with a big chart with black crosses on a white wooden surface. This works pretty well, since with the reflection of the light of the LED, black and white can be easily recognised. Then the ambient light has not a big influence. (...) (19 years ago, 8-Jun-05, to lugnet.robotics.rcx.legos)
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| | rcx programming and flash
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Hello, once time, i've found a site about an api waht can control rcx by flash interface. but i dont find anymore this site thx a lot (19 years ago, 8-Jun-05, to lugnet.robotics.rcx)
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| | Real-world interfacing to RCX: LEDs and magnetic sensor
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I would like to be able to drive one or two banks of 7-8 LEDs off of the motor ports on the RCX. I know that there is a winker board that senses the motor level to determine what pattern to display. Can this be accomplished otherwise? I also want to (...) (19 years ago, 7-Jun-05, to lugnet.robotics.rcx)
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