 | | NXT Inventor's Guide Book Signing in Austin, TX
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On Saturday, April 19th, I'm having a book signing at a Barnes & Noble in Austin, Texas for my book The Unofficial LEGO MINDSTORMS NXT Inventor's Guide (No Starch Press, 2007). The signing will begin at 2PM, and I'll be bringing two robots with me (...) (18 years ago, 11-Apr-08, to lugnet.robotics, lugnet.robotics.nxt, lugnet.events, lugnet.loc.us.tx, FTX)
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| | Release of LEJOS OSEK 2.0, It supports ANSI C/C++ application flash!
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Hi, What's new in 2.0 is: - LEJOS OSEK application can be uploaded to Flash by NXT BIOS. - NXT BIOS is a Flash boot loader and it does NOT touch the lock/security bits of AT91SAM7S. - 224Kbytes Flash and appx.50Kbytes SRAM are available for LEJOS (...) (18 years ago, 7-Apr-08, to lugnet.robotics)
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| | Re: Two dimensional arrays in NXC
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(...) Hi Roger, yes, Java can do the job, but normally I prefer pbLua for all my NXT projects. It is completely operating system independant, you need a terminal only... From time to time, I like to play with NXC, which is available for most os'es (...) (18 years ago, 6-Apr-08, to lugnet.robotics.nxt)
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| | Re: Two dimensional arrays in NXC
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(...) Hi Christian, If you need 2 dimensional arrays and use OSX, Java is a possible answer. You can download it from http: lejos.sourceforge.net. It supports up to 8 dimensional arrays, the Java math library, multi threading, communications via (...) (18 years ago, 5-Apr-08, to lugnet.robotics.nxt)
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| | Re: Brickworld Mindstorms Event Rules for Trash Wars
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(...) In the interest of keeping people from building gigantic unfolding contraptions that cover the entire playing field, we're going to go with NO, no expansion beyond 18x18 at ANY TIME. I will modify the rules to reflect this when I get a chance. (...) (18 years ago, 3-Apr-08, to lugnet.events.brickworld, lugnet.robotics)
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| | Re: Two dimensional arrays in NXC
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(...) Well, don't add the functionality on my account - I've redone my program a bit and now it doesn't need multi-dimensional arrays, and I think it's better this way anyways. Thanks for your help. Trevyn (18 years ago, 2-Apr-08, to lugnet.robotics.nxt)
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| | Re: Brickworld Mindstorms Event Rules for Trash Wars
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In lugnet.events.brickworld, John Brost wrote: <snip> (...) Hey John, This sounds exciting! RIght now I only have 1 question--when it states that the 'bot must fit in the 18 by 18, is that just when you say 'go' or trhough the entire competition? (...) (18 years ago, 2-Apr-08, to lugnet.events.brickworld, lugnet.robotics)
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| | Re: Two dimensional arrays in NXC
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(...) OK, I'll publicly make my demand louder. OSX is a great enviroment for educators... oh heck with it, I want it for me, not my students :) (18 years ago, 2-Apr-08, to lugnet.robotics.nxt)
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| | Brickworld Mindstorms Event Rules for Trash Wars
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Ok folks, here we go, the official rules for Trash Wars, one of the Mindstorms events that will be held at Brickworld (June 19-22, Wheeling, IL). I think Bryan's original post called it "Garbage Wars", but I like Trash Wars better, and since I wrote (...) (18 years ago, 2-Apr-08, to lugnet.events.brickworld, lugnet.robotics) !
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| | RE: Two dimensional arrays in NXC
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Yes. It is currently a Windows only package. There's some, but not a lot, of demand for Mac version. -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of Christian Mock Sent: Monday, March 31, 2008 (...) (18 years ago, 1-Apr-08, to lugnet.robotics.nxt)
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| | Re: Two dimensional arrays in NXC
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(...) RobotC is for MS Windows only, isn't it ? Please let me know, if an OSX version is available. Thanks Christian (18 years ago, 31-Mar-08, to lugnet.robotics.nxt)
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| | Re: Two dimensional arrays in NXC
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(...) The stock firmware supports multi-dimensional arrays but there is a bug in the replace opcode which makes it impossible to replace an element in an array with more than one dimension. In NXC, due to the way the opcodes work in the standard (...) (18 years ago, 31-Mar-08, to lugnet.robotics.nxt)
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| | RE: Two dimensional arrays in NXC
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As an alternative, you might want to look at the ROBOTC solution. It fully supports two dimensional arrays. You can download a 30-day evaluation version from www.robotc.net. It's best to use the pre-release version (1.22 or higher) if you'll be (...) (18 years ago, 30-Mar-08, to lugnet.robotics.nxt)
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| | Two dimensional arrays in NXC
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Hello, I'm trying to use two dimensional arrays in NXC, like this: int onedarray[4]; int twodarray[4][4]; task main() { onedarray[2] = 1; twodarray[2][2] = 1; } I read that the stock firmware doesn't support them, so I got John Hansen's enhanced (...) (18 years ago, 29-Mar-08, to lugnet.robotics.nxt)
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| | Re: New Mindstorms Events
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Cross posting to lugnet.robotics... (URL) Philo> (...) (18 years ago, 28-Mar-08, to lugnet.events.brickworld, lugnet.robotics, FTX)
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| | Re: advice on what Mindstorms book(s) I should consider buying
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(...) This is my preferred RCX book too! Philo (18 years ago, 28-Mar-08, to lugnet.robotics.rcx)
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| | What to use? brickOS? leJOS? pbForth?
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Im a programmer so language isn't an issue. What's the status of these firmware replacements? I've looked around them some and I like BrickOs but I don't see any functions in there for the IO IR Port on the RCX! Is it just a better bet to stay with (...) (18 years ago, 27-Mar-08, to lugnet.robotics)
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| | Re: advice on what Mindstorms book(s) I should consider buying
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My son really liked the book "Building Robots with Lego Mindstorms" by Ferrari, Ferrari, and Hempel, because it teaches design principles, rather than just giving step-by-step instructions. (18 years ago, 27-Mar-08, to lugnet.robotics.rcx)
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| | Re: advice on what Mindstorms book(s) I should consider buying
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(...) Hi Jonathan, If you're looking for a great introduction to RIS 2.0 and would like some building instructions, I recommend "Definitive Guide to LEGO MINDSTORMS, Second Edition" by Dave Baum. If you're looking for tons of interesting ides but (...) (18 years ago, 27-Mar-08, to lugnet.robotics.rcx)
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| | advice on what Mindstorms book(s) I should consider buying
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I own a RIS 2.0 and an Ultimate Accessory Kit (with the remote control) along with a large collection of technic (such as 8448, 8466, 8431 and more) and would like recommendations from people here as to books that would be good to buy to expand my (...) (18 years ago, 27-Mar-08, to lugnet.robotics.rcx)
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| | RCX Code Programming and Bot Samples?
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I've been away a long while. How are RCXs currenlty programmed? I used a C type program before and I liked it a lot, is that still used? Also, is there a good central site for RCX bot builds? Thanks! Rich ___...___ Be a better friend, newshound, and (...) (18 years ago, 27-Mar-08, to lugnet.robotics)
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| | Need 2 RCX green battery trays
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Hi, I need two RCX battery trays (the green part) anyone have any idea where I can get them? Many thanks! Rich ___...___ Looking for last minute shopping deals? Find them fast with Yahoo! Search. (URL) (18 years ago, 26-Mar-08, to lugnet.robotics)
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| | FW: light active mode vs inactive mode
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I am attempting to turn the reflective light on and off periodically. It works fine in RobotC. However, in Robolab, once it is turned off (via the robolab light sensor initialization - set the light on to "false"), it won't turn on again during (...) (18 years ago, 18-Mar-08, to lugnet.robotics.rcx.robolab)
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| | Re: Mars mission IV
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(...) Hi Philo, this is amazing. Thanks a lot. (18 years ago, 16-Mar-08, to lugnet.robotics, FTX)
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| | Re: Mars mission IV
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(...) Hi Claude, If you need to model your rover, I just LDrawed the solar panel and the supercap... (2 URLs) Philo (18 years ago, 16-Mar-08, to lugnet.robotics, lugnet.cad.dat.parts, FTX)
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| | light active mode vs inactive mode
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I am attempting to turn the reflective light on and off periodically. It works fine in RobotC. However, in Robolab, once it is turned off (via the robolab light sensor initialization - set the light on to "false"), it won't turn on again during (...) (18 years ago, 16-Mar-08, to lugnet.robotics.nxt)
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| | Re: Mars mission IV
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(...) is that we were able to fix the problem: The issue was that we were using the Assembler code bclr #7,@0xFFC4 in order to select sleep mode instead of software stand-by mode. We already had troubles with direct bit setting or clearing with (...) (18 years ago, 15-Mar-08, to lugnet.robotics)
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| | Re: Mars mission IV
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Question to H8/3292 specialists (Kekoa Proudfoot, Michael Anderson, Markus Noga, Ralph Hempel, John Hansen, Dick Swan ... these are the ones I know, ... are there others... probably?) I tried to plunge the RCX into sleep mode (not the normal RCX (...) (18 years ago, 15-Mar-08, to lugnet.robotics)
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| | Using PF modes with mindsensors NRLink device
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Hi all, I am trying to use the different PF modes (PWM for instance) with my mindsensors NRLink. I tried adding new macros to PF.txt file without any sucess. This is the file I used. I updated this macro file in my NRLink with NXT-G and afterwars I (...) (18 years ago, 14-Mar-08, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: Mars mission IV
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../snip> (...) Please consult (URL) I propose to do the discussions in this forum. (18 years ago, 13-Mar-08, to lugnet.robotics)
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| | Re: Mars mission IV
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(...) That sounds wonderful, although well beyond what I can do (which is why I love reading your projects & posts). (...) Which sounds good, although ultimately I worry about what happens when the power drops really low, and the watchdog timer (...) (18 years ago, 11-Mar-08, to lugnet.robotics)
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| | Re: Mars mission IV
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(...) You're welcome (18 years ago, 11-Mar-08, to lugnet.robotics)
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| | Re: Mars mission IV
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(...) Interesting approach. Good arguments. 1. The RCX is the device of our choice for this project. 2. I think that the RCX firmware should survey the battery status and more and more disable current-intensive functions. I remember that we were (...) (18 years ago, 11-Mar-08, to lugnet.robotics)
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| | Re: Mars mission IV
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Thanks (...) //snip (18 years ago, 11-Mar-08, to lugnet.robotics)
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| | Re: Mars mission IV
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Hi, Claude Baumann, I would like to collaborate with you. I am very interesting in Rover projects. Juan Antonio Breña Moral www.juanantonio.info (18 years ago, 10-Mar-08, to lugnet.robotics)
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| | Re: Mars mission IV
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(...) presentation, of a very novel hack to the RCX. Note that while he used non-LEGO technology (the LEGO solar cells, while robust, have a really poor power-to-weight ratio, and his "energy can" beats the pants off batteries for this sort of (...) (18 years ago, 10-Mar-08, to lugnet.robotics)
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| | Re: Mars mission IV
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"Claude Baumann" <cbaumann@ci.educ.lu> wrote in message news:JxIys1.HME@lugnet.com... (...) Solar Cell / RCX info - From the LEGO site: (URL) What are the specs on the LEGO Solar Cell and Capacitor? The LEGO Solar Cell and Capacitor are designed to (...) (18 years ago, 10-Mar-08, to lugnet.robotics)
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| | Mars mission IV
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We are currently (and urgently) working on a new edition of our Mars mission project ((URL) The idea is to start from our former RCX experiences and add some new features this time. We are designing the rover in traditional stud-technology with the (...) (18 years ago, 10-Mar-08, to lugnet.robotics)
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| | motor port splitter?
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Looks like only Mindsensor provides port splitter for nxt motors. Unfortunately, this splitter will not allow independent control. I had this application which requires ita port to be attached to one NXT motor, and one RCX lamp (while the other two (...) (18 years ago, 10-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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Here is a shameless plug for Java .... The Lejos_NXT software system (aka NXJ) runs its defrag program every time a file is deleted from the file system. And the start up menu also shows on the LCD the amount of free flash (which,of course, is (...) (18 years ago, 9-Mar-08, to lugnet.robotics.nxt)
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| | Re: step-by-step tutorial leJOS and Eclipse
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Hey, Due to a complete redesign of the website, the tutorial URL was changed to: (URL) (18 years ago, 9-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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(...) Unfortunately, the standard firmware does not expose the ability to iterate through the files in the file system. You can do that with the enhanced NBC/NXC firmware, but even then the information you can get about a file is just its name and (...) (18 years ago, 7-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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(...) Thanks, John -- this agrees with what Dave found as well. Makes sense. (...) Thanks again. What would be really neat is a utility that can draw a memory map, showing what is stored where. I haven't seen such a thing since my Apple II days, but (...) (18 years ago, 6-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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(...) According to the LEGO Mindstorms NXT Communication protocol.pdf that is part of the Bluetooth Developer Kit, your error code (89) means "No linear space". That means all the remaining space on your NXT is fragmented so there is not enough (...) (18 years ago, 6-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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OK, for the archives: I got an answer from Dave Baum (author of nxtcom). He says that error #89 indicates memory fragmentation -- even though my NXT had plenty of free RAM in total, there was no single contiguous block big enough to hold the new (...) (18 years ago, 6-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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To follow up my own post: I've since verified that I have 45K free on the NXT, and the file I'm installing is under 13K. I've also restarted both my Mac and my NXT, and still get that mysterious error 89. After more experimentation, it does appear (...) (18 years ago, 5-Mar-08, to lugnet.robotics.nxt)
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| | Nxtcom error #89
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I've been using the nxtcom utility to download NXC apps from my Mac. It was working fine just a few minutes ago, but all of a sudden (starting about 10 minutes ago) it's giving me a "NXT Error #89". I've searched the web and read the read-me, and (...) (18 years ago, 5-Mar-08, to lugnet.robotics.nxt)
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| | Re: new to nbc; invaders problem
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John, Ah. That works fine. I guess I was thinking the graphics data would be compiled into the binary, but the lack of a path in the filenames in the various include files should have given me a clue. -Tim (...) (18 years ago, 3-Mar-08, to lugnet.robotics)
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| | RE: Coming out of the dark ages...
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Interestingly, this exchange caused me to break out my own RCX 1.0 to do some experimentation. I was able to get the serial IR tower to work with Windows Vista Ultimate x64 by using the USB to serial cable from a Vex programming kit (it's actually a (...) (18 years ago, 3-Mar-08, to lugnet.robotics)
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| | Re: Coming out of the dark ages...
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You'll need to either get the RCX 2.0 software or use NQC. As far as I know no one has (yet) managed to use the IrDa port and I believe Vista doesn't support Serial ports... you might try a USB to Serial converter, but that doesn't always work. (...) (18 years ago, 3-Mar-08, to lugnet.robotics)
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| | Re: new to nbc; invaders problem
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(...) I will check into this when I get home this evening but I think your problem may be that BricxCC and NBC do not automatically download the .RIC files referenced in the program source code. Those must be downloaded manually, which you can (...) (18 years ago, 3-Mar-08, to lugnet.robotics.nxt, lugnet.robotics, FTX)
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| | Coming out of the dark ages...
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Hi, I am just coming out of my (second) 'dark ages', now that my kid has turned 5y and is starting to build LEGO, so I can get my LEGO out of the stores again... I didn't have the time yet to check all postings, but can someone quickly fill me in (...) (18 years ago, 3-Mar-08, to lugnet.robotics)
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| | new to nbc; invaders problem
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I'm just getting started with bricxcc (and winxp on my mac), so I'm hoping there's something painfully obvious I'm missing. I've compiled and run a few simple nbc and nxc programs (mostly from John's book), but invaders.nbc isn't working for me. I (...) (18 years ago, 2-Mar-08, to lugnet.robotics.nxt, lugnet.robotics, FTX)
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| | Re: Compass sensor with NXC
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(...) I emailed Karen with the solution to her problem. This can trip you up if you aren't careful. Drawing values to the screen can confuse you if you draw over the top of an existing number without clearing the screen first. John Hansen (18 years ago, 29-Feb-08, to lugnet.robotics.nxt)
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| | Re: Compass sensor with NXC
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(...) Hi John, We're using the HiTechnic sensor. I've contacted you directly with a copy of the program, and here it is if anyone else has an idea for us: task main() { SetSensorLowspeed(IN_2); int dir; ClearScreen (); TextOut (32, 48, "Heading:"); (...) (18 years ago, 28-Feb-08, to lugnet.robotics.nxt)
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| | Re: Compass sensor with NXC
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(...) Which compass sensor are you using, the HiTechnic one or the Mindsensors one? Are you using a low level API function to read its value or are you using one of the newer API functions specific to the compass sensor? Can you email me your (...) (18 years ago, 28-Feb-08, to lugnet.robotics.nxt)
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| | Compass sensor with NXC
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Hello, I coach a Robofest high school team, and we're using two NXT robots for the current challenge, programmed with NXC. We've been having a problem using the Compass sensor with NXC. If I use the view function on the brick (selecting Ultrsonic (...) (18 years ago, 28-Feb-08, to lugnet.robotics.nxt)
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| | Re: What should happen with the lugnet.robotics.nxt sidebar?
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(...) Yes. (...) Links to relevant forums, community projects, NXT MOCs, tips and tricks. (...) Yes, as a chronological, easy to view, list of recent newsgroup user NXT creations. (...) Cool NXT MOCs. (...) The "Recent Items of Interest" should (...) (18 years ago, 27-Feb-08, to lugnet.robotics.nxt)
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| | Re: End effector that can "feel"
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Hi, this is a very good solution! I really like the way this is done, even if it uses 2 sensor ports. The use of the double gear boxes to close the fingers at the same time is very nice! Really great work, excellent end effector solution. Eric (...) (18 years ago, 27-Feb-08, to lugnet.technic, lugnet.robotics)
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| | [Q] Advanced Sensors
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Greetings- What's the best source for advanced sensors (e.g. speech recognition, speech synthesis, camera/image processor, etc.)? It was easier to ask the group than to dig on my own. :) -David (18 years ago, 27-Feb-08, to lugnet.robotics)
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| | Re: Compact track modules
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Edmund Nussbaum schrieb: (...) Site has moved: (URL) fun eddy (18 years ago, 27-Feb-08, to lugnet.robotics)
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| | Re: What should happen with the lugnet.robotics.nxt sidebar?
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I do not use the sidebar at all. Zitat von Jordan Bradford <jordan_bradfordREMO...mail.com>: (...) ---...--- This message was sent using IMP, the Internet Messaging Program. (18 years ago, 26-Feb-08, to lugnet.robotics.nxt)
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| | Re: What should happen with the lugnet.robotics.nxt sidebar?
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(...) To be honest, no, as I read NXT news through lugnet.robotics and never go to lugnet.robotics.nxt... Philo (18 years ago, 25-Feb-08, to lugnet.robotics.nxt)
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| | What should happen with the lugnet.robotics.nxt sidebar?
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Hello, LUGNET readers. In case you don't know, I'm the lugnet.robotics.nxt curator. I used to update the NXT section sidebar with [in]frequent regularity, but during the last couple months I've not done anything to it. I get busy and/or don't take (...) (18 years ago, 21-Feb-08, to lugnet.robotics.nxt, lugnet.technic, lugnet.general, lugnet.admin.curators)
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| | Re: BricxCC-brickOS (bash) interoperability problems
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(...) That is how BricxCC executes the command. I have already implemented the fix and it will be in the next BricxCC test release and, subsequently, in the next BricxCC official release. John Hansen (18 years ago, 20-Feb-08, to lugnet.robotics.rcx)
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| | Re: PF Speed control (and more) in NBC/NXC
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(...) OK THANK YOU (18 years ago, 20-Feb-08, to lugnet.robotics.nxt)
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| | Re: BricxCC-brickOS (bash) interoperability problems
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(...) Yes, I have verified that removing the end of line char in the command line, the old bash is also working normaly. To test that I am executing the following in a windows command terminal: D:>bash file.cmd I am not sure if BricxCC is executing (...) (18 years ago, 20-Feb-08, to lugnet.robotics.rcx)
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| | Re: PF Speed control (and more) in NBC/NXC
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(...) I am in the middle of creating new API functions for NBC/NXC which will enable the same PF motor control via the mindsenors NRLink device. They should be done and in an official beta (b35) by the end of the week. John Hansen (18 years ago, 20-Feb-08, to lugnet.robotics.nxt)
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| | PF Speed control (and more) in NBC/NXC
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hello, I've read the news on nxtasy.org that the new test release of bricxCC can control the speed of PF motors via the Hitechnic IrLink.. is it possible to do the same thing with the mindsensors irlink ? thank you Cristian (18 years ago, 20-Feb-08, to lugnet.robotics.nxt)
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| | LDCC control from PC
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Hello people, I got a bit tired of compiling and uploading programs to a second RCX every time I need to make a small change (ok, adding the possibility to do adjustments with the remote control helps a bit), so I decided to make a win-program that (...) (18 years ago, 19-Feb-08, to lugnet.trains, lugnet.robotics.rcx, FTX)
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| | Re: BricxCC-brickOS (bash) interoperability problems
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(...) Thank you very much for investigating this problem. I looked into it a while back and was very puzzled as to why it no longer worked after I upgraded my cygwin install. If I delete the EOL at the end of the command line it will work? (...) I (...) (18 years ago, 19-Feb-08, to lugnet.robotics.rcx)
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| | BricxCC-brickOS (bash) interoperability problems
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Hi all. I am using BicxCC versión 3.3.7.17 with my RCX and brickOS. Recently I have updated my cygwin versión and now I am experiencing problems: I got the following general error trying to compile: "Compile Failed Unknown GNU error code (-1)" After (...) (18 years ago, 17-Feb-08, to lugnet.robotics.rcx)
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| | Re: University meets NXT
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(...) The official student project is called "MATLAB meets LEGO Mindstorms". The Website (in English), including a little robot gallery is located here: (URL) posted before, the official homepage is: (URL) you can download the "RWTH - Mindstorms NXT (...) (18 years ago, 17-Feb-08, to lugnet.robotics)
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| | Re: Power Function control with RCX and BrickOS
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(...) Hey Bob I have just tested your code, and it works good.But is it possible that you could write some documentation to your code, it would be nice to fully understand what your doing. Best regards Kim Andersen (18 years ago, 17-Feb-08, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics, FTX)
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| | University meets NXT
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Just enjoy this site: (URL) (in German) They developed a project "NXT meets Matlab" at (URL) (in English) (18 years ago, 16-Feb-08, to lugnet.robotics)
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| | 5th METU Robotics Days @Ankara/TURKEY
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If you want to see the developments in robotics, learn how to make a simple robot, and compete your own robots with others, don't miss METU ROBOTICS DAYS! In order to participate in the competitions and join the workshop study, sign up now from the (...) (18 years ago, 15-Feb-08, to lugnet.robotics.events)
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| | Some questions on batteries and AC power for lego
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There seems to be a difference between the voltage outputs of battery boxes and wall powered sources like the train speed regulators. From just listening to the sounds that motors make, a battery box puts out the same voltage as a speed regulator on (...) (18 years ago, 15-Feb-08, to lugnet.technic, lugnet.robotics, FTX)
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| | NXT on the Subway
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LOL, the School in Brooklyn where I teach Robotics, gave me an NXT Kit (consumer version) to create a robot for them to use at the Science Fair. [LEGOSet 8527] I did not have a bag to carry the box, so I carried it on the Subway. LOL, everyone was (...) (18 years ago, 14-Feb-08, to lugnet.robotics.nxt, lugnet.general, FTX)
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| | Re: nxt controller specification
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(...) Strangely enough, the AVR does NOT read motor encoders, the lines coming from the encoder directly enter the ARM processor... Philo (18 years ago, 14-Feb-08, to lugnet.robotics.nxt)
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| | Re: nxt controller specification
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(...) Yep. But note that Philo was talking about *torque*, not force. A torque of 50 N•cm means that it could supply a force of 50 N with a lever arm of 1 cm, or a force of 500 N (more than 100 lbs) for a lever arm of 1 mm... but that would imply an (...) (18 years ago, 13-Feb-08, to lugnet.robotics.nxt)
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| | RE: nxt controller specification
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Thank you for clarifying this, Brian. I was reading (URL) It stated that the NXT with "Stalled torque) up to 50 N.cm. 50N... it equates approximately 10lbs?! That is without any further gearing down, but just the NXT motors!? Wonder if anyone has (...) (18 years ago, 13-Feb-08, to lugnet.robotics.nxt)
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| | Re: PF IR RC protocol released! - NXC
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(...) Many thanks John and Jason for your work on this. I am a comparative newbie to NXC programming but I have my NXT working like a PF IR remote handset now that I set up the sensor correctly! NXC has given me the programming environment to (...) (18 years ago, 5-Feb-08, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Re: Power Functions infra-red RC protocol released!
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(...) Many thanks John and Jason for your work on this. I have been using the NXC functions to control PF IR receivers from my NXT. TLG has just released the following information: "We have been testing the LPF RC Receiver today and discovered an (...) (18 years ago, 6-Feb-08, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Re: nxt controller specification
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(...) Yes. The AVR is responsible for a number of things, including PWM and encoder reading on the motor ports (IMS), the reading of the front panel button state, power management, and A/D from the input lines for analog sensors. It is not (...) (18 years ago, 13-Feb-08, to lugnet.robotics.nxt)
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| | nxt controller specification
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Hi, I wonder if anyone may be familiar with the spec about the nxt brick: I found this on the ww.hobbyengineering.com . NXT Brick * 32-bit ARM7 microcontroller * 256 Kbytes FLASH, 64 Kbytes RAM * 8-bit AVR microcontroller * 4 Kbytes FLASH, 512 Byte (...) (18 years ago, 13-Feb-08, to lugnet.robotics.nxt)
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| | Re: Power Functions infra-red RC protocol released!
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(...) It looks like the PF IR receiver will be very useful for train control and other continuous duty applications. But the only remote available is for intermittent operation. So the only LEGO option to running in PWM/continuous duty is to use a (...) (18 years ago, 31-Jan-08, to lugnet.technic, lugnet.trains, lugnet.robotics)
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| | BricxCC Scripting
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BricxCC now has preliminary but fully functional support for compiling and executing PC-based scripts to control your programmable brick (NXT, RCX, Spybot, whatever). These scripts can be edited in BricxCC with syntax highlighting and (coming soon) (...) (18 years ago, 12-Feb-08, to lugnet.robotics, lugnet.robotics.nxt, lugnet.robotics.rcx)
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| | Re: Power Functions infra-red RC protocol released!
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(...) Here's my fantasy: implementing prototypical ATC (Automatic Train Control) signalling with sensors (e.g. counting coupler magnets, as the best functional equivalent to axle counters) at block boundaries to detect block occupancy, and IR (...) (18 years ago, 2-Feb-08, to lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Python on the NXC
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Hey robo folks, Abstract: I want to run Python on the NXT, not on my PC and connect to the NXC remotely. Did I understand the architecture correctly? Any hints on translation? As far as I know, the NXT is so far lacking support for high-level (...) (18 years ago, 9-Feb-08, to lugnet.robotics)
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| | Researchers use Lego Mindstorms robot to improve ATM security
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(URL) the article: "When the researchers created their prototype, which is called Undercover and was built with a Lego Mindstorms robot, they attempted to come up with a system that would be easy to use but would limit vulnerability to common (...) (18 years ago, 8-Feb-08, to lugnet.robotics, lugnet.robotics.nxt, lugnet.mediawatch)
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| | Re: Power Functions infra-red RC protocol released!
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(...) rats! (...) Thanks for the heads up, John Looks like I really have to start brushing up on my NXT 'bot building now. Dave K (18 years ago, 4-Feb-08, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Re: Power Functions infra-red RC protocol released!
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(...) Dick Swan's replacement RCX firmware also does not support directly manipulating the IR led and it doesn't support microsecond timing control. Both of these features would be required in order to send the IR messages to a Power Function or R/C (...) (18 years ago, 4-Feb-08, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Re: Power Functions infra-red RC protocol released!
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In lugnet.general, Jason J Railton wrote: <snip> (...) I'm runnign Dick Swan's alternate firmware that he sent me a while back. Dave K (18 years ago, 4-Feb-08, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Re: Power Functions infra-red RC protocol released!
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(...) I doubt that's possible - a bytecode program just can't run fast enough to do the timing for the IR commands, on either brick. The NXT can only manage it because it sends them over a slow comms link to a HiTechnic IRLink sensor, then that (...) (18 years ago, 3-Feb-08, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Re: Power Functions infra-red RC protocol released!
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(...) <snip> Nicely done John! Is there a tentative timeframe when NQC for the RCX will be updated to support IR to the LEGO powerfunctions? Dave K (18 years ago, 2-Feb-08, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Re: Power Functions infra-red RC protocol released!
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(...) In collaboration with Jason Railton I have modified/extended the NBC and NXC API functions for the HiTechnic iRLink device in support of the newly documented Power Function modes as well as the R/C Train IR protocol. I uploaded a new (...) (18 years ago, 1-Feb-08, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics) !
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| | Re: [Q] LEGO NXT Book Recommendation
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David, Zitat von David C Matthews <lego-robotics@crynwr.com>: (...) What does "standard for LEGO NXT" mean? There are a lot of NXT-related books out there already, and they deal with a variety of different topics (see for instance (URL) ). I guess (...) (18 years ago, 29-Jan-08, to lugnet.robotics)
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| | [Q] LEGO NXT Book Recommendation
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Greetings- What single book, if any, is considered the standard for LEGO NXT? -David (18 years ago, 29-Jan-08, to lugnet.robotics)
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| | New Power Functions Electronics Folder
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The new Power Functions Electronics folder in my Brickshelf: (URL) contains circuits and pictures of how to use electronics with your PF parts. So far there are PF lead mods, a light direction, latch and flash circuit, which can keep train lights on (...) (18 years ago, 29-Jan-08, to lugnet.technic, lugnet.trains, lugnet.general, lugnet.robotics, lugnet.loc.uk, lugnet.parts.mod)
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| | Re: Power Function control with RCX and BrickOS
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A new version of my Power Functins library and PWM remote are now available at: (URL) There was some code cleanup and fine tuning. The PWM remote program now goes from slowest to fasted speed. give it a try and thanks for all the feed back so far. (...) (18 years ago, 28-Jan-08, to lugnet.general, lugnet.technic, lugnet.trains, lugnet.robotics, FTX)
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