 | | 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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| | Getting patches integrated into the brickos?
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I've been trying to build a cross compiler and brick-os on my machine for a day now and well, what can I say except that all the how-to's and instructions for building brick-os seem to be either wrong, bad or out of date. (e.g. they talk about very (...) (19 years ago, 23-Apr-07, to lugnet.robotics.rcx.legos)
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| | Re: Another useless utility
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(...) I've created a little desktop wrapper for the Mac version of rsoplay called RSOPlayer. You can drag RSO files onto it to play them, double-click RSOPlayer to select files to play with a file browser, or even assign RSOPlayer to handle RSO (...) (19 years ago, 25-Apr-07, to lugnet.robotics.nxt, FTX)
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| | Deriving power from NXT® motor port A
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This (URL) special cable> allows you to power external devices such as a a motor multiplexer or a wireless camera from your NXT. No need for external bulky battery box! (if your current consumption is low enough, 800mA max). Though plugged into NXT (...) (19 years ago, 25-Apr-07, to lugnet.robotics.nxt.nxthacking, FTX)
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| | Re: NBC and Windows Mobile
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(...) I also have a Dell X51v PDA and am very interested. I don't own a laptop so my PDA is all I take to brick events. I did fine using OnBrick at the recent BrickFest PDX, but am looking for other options. I don't have a lot of time to help, but I (...) (19 years ago, 24-Apr-07, to lugnet.robotics.nxt)
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| | Bricxcc news
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A new test release of BricxCC is available. It features a built-in NBC/NXC compiler which can be turned on or off via a checkbox on the NBC/NXC Compiler tab. With it turned on you will find that compiling and downloading programs via bluetooth is (...) (19 years ago, 24-Apr-07, to lugnet.robotics.nxt)
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