 | | NBC arrays
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Is there some more detailed (and lower-level) description of how the arrays work in NBC, please? Something that would complement the description in the manual? This is how I see the arrays in NBC/standard firmware: * a compiled program works with (...) (19 years ago, 29-Apr-07, to lugnet.robotics.nxt)
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| | Re: NBC/NXC beta news
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(...) Sorry for not getting back with you sooner about this bug, Rosco. Life comes at you fast, as they say. :-) I investigated this problem today and it looks like I've got it fixed. There were several bugs going on in NBC which were causing the (...) (19 years ago, 28-Apr-07, to lugnet.robotics.nxt)
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| | Robo Quad - Stage Six
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Robo Quad - Stage Six - Work in progress - Head and neck construction. Vision Command Sensor Cameras. Custom eye lights and Ultrasonic sensor by Hitechnic. Neck up/down and Head left/right motion use RC Racer style motors. Ready for Stage Seven. (...) (19 years ago, 28-Apr-07, to lugnet.announce.moc, lugnet.build.mecha, lugnet.technic, lugnet.robotics, FTX) !!
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| | NXTasy challenge no. 2
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I've postponed the deadline on NXTasy.org challenge no. 2 till June 1st. Also, detailed rules and prizes were published here: (URL) urge the (advanced) readers of Lugnet to contribute to this challenge. I think it's important that MDP/MCP members (...) (19 years ago, 28-Apr-07, to lugnet.robotics.nxt)
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| | RE: Classroom experiments gone awry
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Your results are not at all what I intuitively expect. From your previous posts, I think the "turn ratio" settings you've used range from 0 to +100 in steps of 10. The following table is what I expected. Turn Inner Expected Observed Ratio Wheel (...) (19 years ago, 28-Apr-07, to lugnet.robotics.nxt)
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| | Control Lab - serial/USB
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The Lego Control Lab (peeron #9751) connects to a PC through a serial cable. Since most laptops don't have a serial port I was wondering if anyone knew how I might connect a Control Lab to a laptop. Would a USB converter work (will RoboLab recognise (...) (19 years ago, 28-Apr-07, to lugnet.robotics)
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| | Re: Difficulty with WRITE COMMAND over BT
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(...) Thank you very much for the reply. It is still consistently puzzling. If I write some other file - for example a text file named file.txt, I can write and close, and see it in the list (through findfirst/findnext) successfully. This works both (...) (19 years ago, 28-Apr-07, to lugnet.robotics.nxt)
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| | Re: Classroom experiments gone awry
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(...) I'm using terms of my own making. These are terms that seem to work with 10 - 12 year olds. By "dominant" I mean the wheel which measures the duration specified in a turn. Sometimes I use the term "outside wheel". For example, a duration of (...) (19 years ago, 28-Apr-07, to lugnet.robotics.nxt)
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| | NXTOffRoad+Extensionboard
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Hi, today I released the NXTOffRoad-Prototype... NXTOffRoad at Work (URL) Build-0 (URL) Build-1 (URL) with MCU (URL) for extensions (MCU-Board for SD-Card, Camera, Motors and additional IO-Ports) (URL) the pictures Bye Christian (19 years ago, 27-Apr-07, to lugnet.robotics)
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| | Re: Difficulty with WRITE COMMAND over BT
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(...) It's hard to say what exactly might be going wrong. Here's how I write a file to the NXT: // write in < 64 byte chunks xferred := 0; aStream.Position := 0; // start at the beginning while xferred < size do begin cnt := Min(size - xferred, (...) (19 years ago, 27-Apr-07, to lugnet.robotics.nxt)
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| | FW: Classroom experiments gone awry
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It is hard to lay fingers on trouble shooting this without understanding your experiment. Would you clarify your experiment: Hypothesis: ??? Control variable: wheels size? Independent variable : Dependent variable: Procedure: ??? --Elizabeth (...) (19 years ago, 27-Apr-07, to lugnet.robotics.nxt)
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| | RE: Classroom experiments gone awry
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I'm having trouble understanding the meaning of your results. What do the percentages mean? I'd also just like to check that you used the "run for 10 rotations" as duration with "next action" indicated as stop. What speed did you use for the (...) (19 years ago, 26-Apr-07, to lugnet.robotics.nxt)
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| | Difficulty with WRITE COMMAND over BT
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Hi, I am attempting to download a .rxe program file to NXT from some programming environment that allows communicating over serial port. So I connect to NXT (with 1.04 firmware) from the WinXPSP2 box with BT USB dongle, and use the commands (...) (19 years ago, 26-Apr-07, to lugnet.robotics.nxt)
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| | Re: Classroom experiments gone awry
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(...) What do you mean by "dominant" here? And what is a "tick" on the steering slider equal to? I've done something similar to figure out the behavior with respect to the position of the steering slider, but this is a *great* place to introduce the (...) (19 years ago, 26-Apr-07, to lugnet.robotics.nxt)
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| | Classroom experiments gone awry
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Imagine a classroom with eight 13-year old boys, paired up with a laptop and the standard NXT Edu robot. The 9x9 inch floor tiles made perfect for a little experiment in derivation. Starting at a fixed point and heading, each team marked where the (...) (19 years ago, 26-Apr-07, to lugnet.robotics.nxt)
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| | NXT G-blocks list
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Please consult the excellent list of available NXT G-blocks (URL) Guy (19 years ago, 26-Apr-07, to lugnet.robotics)
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| | Re: Announcing LegWay, Finally
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(...) I have dowloaded and installed the code from Steve's website (URL) to test out the Legway. This download has a compiled version of the code, but not the actual code (.c file). My son was quite impressed with this balancing robot. The readme (...) (19 years ago, 26-Apr-07, to lugnet.robotics)
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| | Re: Getting patches integrated into the brickos?
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(...) As far as I know, all the sourceforge web pages are held in the CVS repository, as are the sources. Only people with developer permission on the project have commit access to CVS - you have to contact the project admins to request that (...) (19 years ago, 25-Apr-07, to lugnet.robotics.rcx.legos)
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| | Re: NBC/NXC beta news
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(...) Well that technique does compile, but produces interesting results: --- #include "NXCDefs.h" struct st { string s1; int i1; } st a1[]; st v1,v2; task main() { v1.s1 = "test"; v1.i1 = 9; NumOut(0,0,v1.i1); TextOut(40,0,v1.s1); (...) (19 years ago, 25-Apr-07, to lugnet.robotics.nxt)
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| | Re: NBC/NXC beta news
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(...) The problem with code of this sort is that the opcodes for manipulating values do not readily allow for this type of operation. To set the variable val to the value of the bxxx field of the structure type stored in your array of structs I (...) (19 years ago, 25-Apr-07, to lugnet.robotics.nxt)
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