 | | Re: Displaying multiple variables
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(...) Nice. Thanks very much. When I get to my computer, I'm going to check to see how I missed the "Clear Screen" checkbox. (17 years ago, 17-Nov-07, to lugnet.robotics.nxt)
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| | Re: Displaying multiple variables
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(...) There are lots of ways to display such information on the NXT LCD. The easiest is probably to draw one number, and then use a second Display block to draw a second number - just uncheck the "clear screen" checkbox on the second Display block. (...) (17 years ago, 17-Nov-07, to lugnet.robotics.nxt)
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| | Displaying multiple variables
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Yesterday, I had a student who wished to display two numeric variables on the screen. We ended up multiplying the first by 1000 then adding the second. This we displayed and read as a packed variable with two shifted values. How can we do this more (...) (17 years ago, 17-Nov-07, to lugnet.robotics.nxt)
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| | Format of the NXT-G program files?
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Hi, Am I correct that there are no utilities for inspecting the NXT-G programs created with the RoboLab for NXT? I mean: printing the programs created in NXT-G in some human-readable format? Any documentation about the binary format anywhere? (...) (17 years ago, 8-Nov-07, to lugnet.robotics.nxt)
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| | Nxc and Mindsensors stuff
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Hi, we just bought some sensors from mindsensor.com but I cannot find any info on how to use them with nxc. I have seen that b33 has two new API but there is no "generic" info on how to use them and the mindsensor.com site has no info or sample (...) (17 years ago, 12-Nov-07, to lugnet.robotics.nxt)
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| | Resetting TachoCount in LCP
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|
Hi, I'm wondering how to reset a tachometer via the Lego Communication Protocol. Of the three tachometer readings, TachomCount, BlockTacho and RotationCount, I can only see how to reset the latter two using ResetMotorPosition (Bluetooth Developer (...) (17 years ago, 10-Nov-07, to lugnet.robotics.nxt)
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| | Installing LeJOS on Linux (Fedora Core 6)
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My sysadmin is trying to install LeJOS for me on our Linux servers. He's having a problem detailed in what I'm posting below. Does anyone have any ideas on what's going wrong? Thanks, Peter Copied message: ***...*** I am trying to build on a fedora (...) (17 years ago, 8-Nov-07, to lugnet.robotics.nxt)
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| | BricxCC release 3.3.7.17
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I posted a new official BricxCC release yesterday: 3.3.7.17. This release includes substantially improved help content for NBC and NXC as well as a built-in NBC compiler (beta 33). If you've been using the latest test release there isn't much new (...) (17 years ago, 6-Nov-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Replenishing NXT Educational sets
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(...) I wondered about that. My search arguments weren't good enough to reveal the right Bricklink part number. Thank you very much! (17 years ago, 26-Oct-07, to lugnet.robotics.nxt)
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| | Re: Replenishing NXT Educational sets
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(...) Bricklink does not have the same part number for this piece as Peeron/LDRAW. Use this part number: (URL) You will find hundreds for sale. (17 years ago, 26-Oct-07, to lugnet.robotics.nxt)
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| | Replenishing NXT Educational sets
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The Edu Set has two 1x13 Technic Beams, (URL) The models presented in all the curriculum materials are absolutely dependent on these 1x13 beams. Bottom line, a missing 1x13 beam causes students a lot of grief, consternation, discouragement, (...) (17 years ago, 25-Oct-07, to lugnet.robotics.nxt)
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| | Re: nbc gives error for SendRemoteString
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|
(...) This is caused by a typo bug in the NXTDefs.h header that I accidentally introduced in beta 32. If you are running on a Windows box you can download a pre-release of beta 33 from the test_release.zip on the BricxCC page. I will have beta 33 up (...) (17 years ago, 25-Oct-07, to lugnet.robotics.nxt)
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| | nbc gives error for SendRemoteString
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Hi, has there been an undocumented change in the last nbc? I have some programs that use SendRemoteString and I cannot compile them any more (they compile with older versions). This minimal prog: ---...--- task main() { string out; out="String"; (...) (17 years ago, 23-Oct-07, to lugnet.robotics.nxt)
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| | Re: Source Code Changes in NXT Firmware Version 1.05
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|
(...) The changes between 1.03 and 1.04 are far more extensive than the changes from 1.04 and 1.05, if you lump the support for ADPCM compression into a single change (which involves c_sound.c, d_sound.c, d_sound.h, d_sound.r, d_sound_adpcm.r, and (...) (17 years ago, 18-Oct-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Source Code Changes in NXT Firmware Version 1.05
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I haven't seen it previously mentioned but the open source firmware for version 1.05 is downloadable from the LEGO Mindstorms web site. I did a WINDIFF on the various source files to see what has changed in this release. I then manually examined the (...) (17 years ago, 17-Oct-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Ultrasonic sensor calibration settings
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|
Hi, Has anyone tried using the standard NXT Ultrasonic sensor calibration settings? I've been doing a little work on the leJOS i2c interface and although I can read both the factory default values and the current settings I do not seem to be able to (...) (17 years ago, 17-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: ARM Assembly Language Programming on NXT?
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Hi T.C. (...) aha. I just programmed some startup and interrupt wrapper code (the rest is C), so I didn't get into the higher reaches of macros etc. Jürgen (17 years ago, 16-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: ARM Assembly Language Programming on NXT?
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(...) Sorry, I found a more recent version, but it's still missing some parts on the ARM architecture: (URL) also found the following Intro guide (which is better than nothing): (URL) (17 years ago, 16-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: ARM Assembly Language Programming on NXT?
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Hi Juergen, Thanks for replying. (...) Thanks for the info. My goal is to run and debug ARM assembly language programs executing in RAM. I was not familiar with the NXT, so currently I'm looking at the on-board capabilities. I realized after some (...) (17 years ago, 16-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: ARM Assembly Language Programming on NXT?
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|
Hi T.C., (...) I have an AT91SAM7S-EK here, it has 4 LEDs and 4 touch buttons. It should also be fairly easy to write a driver for one of the serial ports (polling would suffice for a start). On the NXT the only I/O that is easy to use with the (...) (17 years ago, 14-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | NXT Power Programming
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I’d like to officially announce that Variant Press will soon publish my new book, NXT Power Programming. It should be available November 7th. You can pre-order it now at Amazon.com or Variant Press. I hope everyone who purchases a copy of NXT Power (...) (17 years ago, 11-Oct-07, to lugnet.announce, lugnet.robotics, lugnet.robotics.nxt) !
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| | Re: Mindstorms NXT 1.1
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(...) Thanks Matthias, I did read that discussion; but I hadn't realized the people who said they called actually received it for free. My understanding was that they were in countries were it's listed as "not available yet" (such as Germany or (...) (17 years ago, 10-Oct-07, to lugnet.robotics.nxt)
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| | Re: Mindstorms NXT 1.1
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|
Thanks Philo, I should have thought to check nxtasy on the subject. Looks like there are a lot of improvements; but then again what interests me most is full support of my computer, which the current software doesn't provide. A patch, in short. On (...) (17 years ago, 10-Oct-07, to lugnet.robotics.nxt)
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| | Re: Mindstorms NXT 1.1
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There has been an according post on THE NXT STEP one week ago ((URL) a lot of comments of users there state that they have received it free of charge. I also do not understand why it is not available in Germany - that's ludicrous for an (...) (17 years ago, 10-Oct-07, to lugnet.robotics.nxt)
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| |
| | Re: Power Functions presentation
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(...) I did it, I'll try to update my page with some internal photos. (...) The battery box delivers power through power lines (used by IR receiver) if the switch is not in neutral position, and C1 C2 whose polarity depends on switch position (and (...) (17 years ago, 10-Oct-07, to lugnet.robotics.nxt, lugnet.technic)
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| | Re: Mindstorms NXT 1.1
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(...) You are not alone thinking that: (URL) there are indeed a lot of improvements: (URL) (17 years ago, 10-Oct-07, to lugnet.robotics.nxt, FTX)
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| | Re: Power Functions presentation
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|
"Philippe Hurbain" <philohome@free.fr> wrote in message news:JpHqA1.FM@lugnet.com... (...) built internally? Your page seemed to suggest that someone had actually taken them apart, but there was no more information on there. Apart from the obvious (...) (17 years ago, 10-Oct-07, to lugnet.robotics.nxt, lugnet.technic)
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| | Mindstorms NXT 1.1
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|
Hi, I don't think I've seen it here yet, but apparently LEGO is finally releasing version 1.1 of the NXT software. It will be available on Shop@Home: (URL) So far it seems it's not available in all countries yet, but a phone call might work. To me (...) (17 years ago, 9-Oct-07, to lugnet.robotics.nxt, FTX)
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| | robo soccer
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I wonder if there is anyone who has experience with the following book: RoboCup 2002: Robot Soccer World Cup VI (Lecture Notes in Computer Science) I have a group of students are working on robosoccer game using nxt with RobotC. Recommendation? (17 years ago, 9-Oct-07, to lugnet.robotics.nxt)
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| | Re: The Future of Trains
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|
(...) You are right, the main limitation probably comes from wall wart... You are essentially right for the 0.7A current (though it is not hard limit, rather a safety one). Philo (17 years ago, 9-Oct-07, to lugnet.lego, lugnet.robotics.nxt, lugnet.trains)
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| | Re: ARM Assembly Language Programming on NXT?
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(...) Thanks for the tip. I glanced at (URL) previously but I must've missed it thinking it's Java based. (...) Are you referring to the default NXT firmware or the LEJOS NXJ/OSEK firmware? (...) You're right, I've come across several ARM-based SBC (...) (17 years ago, 9-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: ARM Assembly Language Programming on NXT?
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(...) Thanks Dick for intruducing LEJOS OSEK, When we develolped LEJOS OSEK, Prof. Mizuno wrote several GCC assembly code to port TOPPERS OSEK (an open source OSEK OS) to NXT. Whole assembly code(*.S) is stored in lejos_osek\toppers_o...1sam7s-gnu (...) (17 years ago, 9-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: The Future of Trains
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(...) The Australian LEGO wall wart is marked 10V @ 7VA on the secondary. I don't recall all the stuff I learnt about the relationship between VA and W, but that seems to me to indicate about 0.7A. I believe this generally reduces as load increases, (...) (17 years ago, 8-Oct-07, to lugnet.lego, lugnet.robotics.nxt, lugnet.trains)
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| | Re: The Future of Trains
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(...) At BayLTC we usually run four train motors on one loop using stock Controller with a 1.2 amp wall wart. Bruce (17 years ago, 8-Oct-07, to lugnet.lego, lugnet.robotics.nxt, lugnet.trains)
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| | Re: The Future of Trains
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(...) The linear regulator inside is a 1.5A version if I remember well, but I may be wrong. Cross posted to lugnet.trains trying to get train guru opinion... Philo (17 years ago, 8-Oct-07, to lugnet.lego, lugnet.robotics.nxt, lugnet.trains)
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| | RE: ARM Assembly Language Programming on NXT?
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Do a Google on "LEJOS OSEK". I believe this is a solution that has taken the base "OS" from the NXJ JAVA byte code interpreter as the basis for programming the NXT using GCC C++. I assume if you can use the GCC C/C++ tools with the NXT then you (...) (17 years ago, 8-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: The Future of Trains
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(...) Philo kindly corrected me, pointing out that the NXT outputs are regulated down to 1 A, so you couldn't run a dual-truck train all the way to stall. You could still get a good bit of the way there, however. Does anyone know what the peak (...) (17 years ago, 8-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| | Re: The Future of Trains
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(...) Ah, thank you - so running two stalled train motors would exceed the NXT output, but running one train motor up to a stall conditions should be fine. Out of curiosity, along with the output limitations on the NXT (1 A) and RCX (500 mA), does (...) (17 years ago, 8-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| | Re: The Future of Trains
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(...) Some precisions here: - NXT stall current is 2A but only for a short time: internal thermal protection will trip at a current much lower than that (exact value depends on temperature and overload duration). A practical value is about 1A - NXT (...) (17 years ago, 8-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| | ARM Assembly Language Programming on NXT?
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|
Hi, I just stumbled on this newsgroup/website while searching for kits for teaching Assembly Language programming to undergraduate students in Comp. Science in an interesting (interactive) manner. I'm primarily interested in the ARM instruction set. (...) (17 years ago, 8-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: The Future of Trains
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(...) So it sounds like a single loop should be no problem under most situations, since I'm not sure I've heard of anyone running three motors on a single train (there's the same issue with how much amperage a power regulator can push). (...) It (...) (17 years ago, 8-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| | Re: The Future of Trains
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(...) Stalled, the train motor pulls 950 mA, while the stall current of the NXT motor is a whopping 2 Amps. So a single NXT motor output should easily handle a twin-engine train loaded to the point where it stalls the engine(s)... there's the matter (...) (17 years ago, 7-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| | Re: The Future of Trains
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(...) Fair enough, but clearly the idea has sparked some interest, so I'm sure I'll see it get put into use at some point. (...) The ports may be able to pour out power, as you say, but I'd say it's equally well established that large trains with (...) (17 years ago, 7-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| | Re: The Future of Trains
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|
(...) As Ross mentioned, I was focused more on the "future" of trains, and if it's going to be done in LEGO, it looks like it will be done without conductive track. (...) Absolutely, but you could do better. Run a single loop off a single output, (...) (17 years ago, 6-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| | Re: The Future of Trains
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(...) I believe the options being discussed were in relation to the use of non-metal track, which is all that will be produced by LEGO in the foreseeable future. ROSCO (17 years ago, 6-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| | Re: The Future of Trains
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(...) Oh, for shame, Brian. Letting me think up an option that you passed right over (and a really cool one at that). With the legacy converter cables, you could power the _track_ with an NXT. Hook the track up as if it was a motor, using the (...) (17 years ago, 6-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| | Re: The Future of Trains
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|
(...) Not exactly, that I know of, *yet*... The biggest problem in running a train would be hiding the NXT - I saw only one good solution to hiding the RCX in a boxcar, and the NXT is bigger, as are the motors. You could use an old motor (or even a (...) (17 years ago, 6-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| | Re: The Future of Trains
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|
In lugnet.lego, Scott Wardlaw wrote: <snip> (...) <snip> Has anyone adapted two NXT units to drive a train yet? One NXT as a controller talks bluetooth to the other NXT that drives the train. The NXT that drives the train could be either attached to (...) (17 years ago, 5-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
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| |
| | eZCIRCUITS #2 Is Available
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|
Hi All, I've just posted another eZCIRCUITS to my blog (URL). This application will show how to build a Bumper Sensor-Switch with the help of the LEGO NXT for mobile robots and mechatronics platforms. Enjoy!!! Don W. (17 years ago, 22-Sep-07, to lugnet.robotics.nxt)
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| |
| | Re: New pbLua Beta13o - Now with FLASH Writing!
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|
(...) Hi Ralph, WOW, great work!!! It works perfectly... Some additional notes and documentation about storing Lua programs at flash memory is available at: (URL) for your excellent support Christian (17 years ago, 20-Sep-07, to lugnet.robotics.nxt)
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| | Re: Any Good Fan Instructions Using Only One NXT Set?
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(...) Thanks Matthias. That's just the kind of thread I was looking for. -Paul (17 years ago, 20-Sep-07, to lugnet.robotics.nxt)
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| | Re: Any Good Fan Instructions Using Only One NXT Set?
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(...) Yes, this helps a lot. I'll definitely check out your book when it comes out. Thanks! -Paul (17 years ago, 20-Sep-07, to lugnet.robotics.nxt)
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| | Re: NXT's in Series
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|
(...) Here's one way: Use NXC or NBC. Pair a secondary NXT to a the primary NXT on connection 1 using the menu system on the primary NXT. Control the outputs on the secondary NXT using RemoteSetOutputState in a program running on the primary NXT. (...) (17 years ago, 19-Sep-07, to lugnet.technic, lugnet.robotics.nxt)
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| | Re: Any Good Fan Instructions Using Only One NXT Set?
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|
Paul, have a look here: (URL) Matthias Zitat von "Paul S. D'Urbano" <durbano@optonline.net>: (...) ---...--- This message was sent using IMP, the Internet Messaging Program. (17 years ago, 19-Sep-07, to lugnet.robotics.nxt)
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| | Re: Any Good Fan Instructions Using Only One NXT Set?
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(...) Hi Paul, This website has some free building instructions for robots that can be built from the pieces in one NXT set: (URL) new book has some building instructions for robots that can also be built from the pieces in one NXT set: (URL) my new (...) (17 years ago, 19-Sep-07, to lugnet.robotics.nxt)
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| |
| | RE: step-by-step tutorial leJOS and Eclipse
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(...) I tried it and it was painless. I made a typo in entering the "Path" field which took a while to figure out; otherwise it worked like a charm. Overall score: very good / satisfied. Please don't take the following as criticism -- you asked for (...) (17 years ago, 19-Sep-07, to lugnet.robotics.nxt)
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| | Any Good Fan Instructions Using Only One NXT Set?
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|
Any good books or fansites out there with instructions for neat stuff you can make with just the parts in one Mindstorms NXT set? Thanks! (17 years ago, 19-Sep-07, to lugnet.robotics.nxt)
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| | Re: step-by-step tutorial leJOS and Eclipse
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|
Christoph, That's great! I've posted an according entry to THE NXT STEP blog: (URL) Matthias Zitat von Christoph Bartneck <christoph@bartneck.de>: (...) ---...--- This message was sent using IMP, the Internet Messaging Program. (17 years ago, 18-Sep-07, to lugnet.robotics.nxt)
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| | step-by-step tutorial leJOS and Eclipse
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|
Hello, We created step-by-step instructions on how to install and run Java on your LEGO Mindstorms NXT using leJOS and Eclipse: (URL) hope that his is helpful to you and maybe you can even report back possible improvements. Enjoy, Christoph (17 years ago, 18-Sep-07, to lugnet.robotics.nxt)
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| | Re: First Impressions: LDD 2.0 and building with Technic elements from NXT.
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(...) Granted, meshing gears is awful. You have to place the gears on axles with space between them, rotate one with hinge tool until they could match, then move the rotated gear and axle in meshing position. And trying to modify a gear ration in an (...) (17 years ago, 16-Sep-07, to lugnet.cad.ldd, lugnet.robotics.nxt)
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| | Re: New pbLua Beta13o - Now with FLASH Writing!
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(...) Normally we should start our 2007/2008 robot projects this Fall. PbLua definitely is on the list of being tested. (17 years ago, 13-Sep-07, to lugnet.robotics.nxt)
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| | Re: New pbLua Beta13o - Now with FLASH Writing!
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(...) Claude, thanks for the encouragement. I remember exchanging notes with you on pbForth, and I'll bet your students are as bright as ever. If you have a spare NXT and a motivated student it would be really interesting to see what they think :-) (...) (17 years ago, 12-Sep-07, to lugnet.robotics.nxt)
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| | Re: New pbLua Beta13o - Now with FLASH Writing!
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(...) Way cool ! Exciting ! (17 years ago, 12-Sep-07, to lugnet.robotics.nxt)
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| | New pbLua Beta13o - Now with FLASH Writing!
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|
All of you that have been helping to test pbLua.... I have released another Beta of pbLua - and it's got FLASH writing (and reading) goodness in it. (URL) It does not yet have the ability to boot from a string in FLASH but it's very close. The (...) (17 years ago, 12-Sep-07, to lugnet.robotics.nxt)
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| | Re: Ultrasonic Sensor iS "Slow"
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(...) The 15 ms that John reported is the time it takes for a sound pulse to travel 500 mm, the round trip distance at the maximum advertised range of the US sensor. An interesting coincidence? Roger Glassey (17 years ago, 11-Sep-07, to lugnet.robotics.nxt)
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| | Ultrasonic Sensor iS "Slow"
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Original Thread title was "Re: Ooops! NXT Software Comparison correction / I2C Messaging Speed". I've renamed as worth a separate thread. (...) You're right!! If you poll the sensor too fast, it definitely reports wrong distances. I'm doing some (...) (17 years ago, 7-Sep-07, to lugnet.robotics.nxt)
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| | RE: NXT-G/ROBOTC Firmware Scheduler and Clump Priority
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Holy cow! This is fun to read... I wish I have the time to further discuss this regarding the events handling with nxt. Follow up later. Thanks for such detailed info. --Elizabeth -----Original Message----- From: news-gateway@lugnet.com (...) (17 years ago, 7-Sep-07, to lugnet.robotics.nxt)
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| | RE: Ooops! NXT Software Comparison correction / I2C Messaging Speed
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(...) I want to list both. First, the one-to-one mapping, and second (with some explanation) the code with a second task. Several other pieces of software have an "optimized" version of code, and it makes sense to do the same for NBC. Steve (17 years ago, 6-Sep-07, to lugnet.robotics.nxt)
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| | Re: NXT-G/ROBOTC Firmware Scheduler and Clump Priority
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Wow! Very interesting posting. Thanks for revealing that, Dick! Zitat von Dick Swan <dickswan@sbcglobal.net>: (...) ---...--- This message was sent using IMP, the Internet Messaging Program. (17 years ago, 6-Sep-07, to lugnet.robotics.nxt)
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| | NXT-G/ROBOTC Firmware Scheduler and Clump Priority
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In a typical operating system (OS), tasks are scheduled on a priority basis. The highest priority task always executes ahead of lower priority tasks. If there are multiple tasks at the highest priority, then they are typically executed in a round (...) (17 years ago, 6-Sep-07, to lugnet.robotics.nxt)
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| | RE: Ooops! NXT Software Comparison correction
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(...) After tuning, NBC achieved 73K test cycles. It achieved these great results by setting the task "priority" to 200. Unfortunately, unless the NXT-G task scheduler has been rewritten, these results might be a little too high. A NXT-G task (or (...) (17 years ago, 6-Sep-07, to lugnet.robotics.nxt)
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| | RE: Ooops! NXT Software Comparison correction / I2C Messaging Speed
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(...) Nobody cheated or is dishonest. Everyone who writes firmware for the NXT is well-intentioned "good" people. Let's not mislabel good modern programming practice -- i.e. hardware device drivers integrated into the low-level firmware -- as (...) (17 years ago, 6-Sep-07, to lugnet.robotics.nxt)
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| | Re: Ooops! NXT Software Comparison correction / I2C Messaging Speed
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(...) I think I understand. In this case, the limiting factor is the US sensor itself, how fast it can ing and interprete a return. Or from my standpoint (a physicist), it's a fundemental limitation of the physics of sound, not a limitation that has (...) (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
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| | Re: US-Sensor I2C-address
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(...) To my knowledge the LEGO Ultrasonic sensor does not support changing its I2C address. IIRC it is hard-coded to 0x02. I do not think it is ADPA-compliant. John Hansen (17 years ago, 5-Sep-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: Ooops! NXT Software Comparison correction / I2C Messaging Speed
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(...) The errors that occur are that the sensor does not properly report variable distances as it is positioned at varying distances from an obstacle. If you slow down the read rate then it works correctly (i.e., with a wait of ~15 ms between read (...) (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
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| | Re: pbLua GUI ???
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(...) I forgot the screenshot ;-) (URL) me: which of the connected NXTs is real ? One of this NXTs is software only (pbLuaAPI). Bye Christian (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
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| | Re: pbLua GUI ???
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(...) New Eclipse version EUROPA (3.3) with LuaEclipse, RSE Target Management, RXTX and pbLuaAPI works excellent with pbLua ! You have direct access to all serial connected NXTs (Bluetooth and USB) from the Eclipse Workbench. A perfect professional (...) (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
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| | Re: Ooops! NXT Software Comparison correction / I2C Messaging Speed
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Hi Dick, (...) actually I2C runs at something close to 12kHz in the LEGO firmware (I forgot the exact value). Jürgen (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
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| | Electronics Prototyping with the LEGO NXT
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Hi Folks, I've been exploring various ways to use the LEGO NXT in enhancing electronics through Robotics and I've just posted a short video on the subject matter at my blog (URL). I'll be writing an eZCIRCUITs application note on the construction (...) (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
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| | RE: Ooops! NXT Software Comparison correction / I2C Messaging Speed
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(...) I wasn't aware of this firmware limitation. I could not duplicate it when using the ROBOTC firmware. I've done three different test runs of 500K messages each with perfect results each time. Each test run used a different sensor. The delay (...) (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
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| | leJOS NXJ 0.4.0 is Released
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NXJ version 0.4.0 now includes a full suite of graphical widgets in the java.microedition.lcdui package, a multi-level menu system, wireless NXT to NXT communications using Bluetooth, primitive wav file sound support, and many more enhancements. (...) (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
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| | US-Sensor I2C-address
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Hello Community, is there currently a known way to change the I2C-Address of the Ultrasonic sensor ? What's the magic with the ADAP ? Thanks for some informations Bye Christian (17 years ago, 4-Sep-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: pbLua GUI ???
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(...) This is starting to look pretty promising as a standard IDE. I will do my part and install Eclipse here and get the instructions updated from Christian's instructions. Once we get a decent IDE the pbLua system may be almost ready for "everyone (...) (17 years ago, 3-Sep-07, to lugnet.robotics.nxt)
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| | Re: pbLua GUI ???
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(...) ;-) currently I'm extending Eclipse with simple terminalprogram and pbLuaAPI... With pbLuaAPI-Wrapper(maps pbLua nxt.* to native Lua routines) you can test and run pbLua code at local PC before transfering to NXT... Christian (17 years ago, 3-Sep-07, to lugnet.robotics.nxt)
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| | Re: pbLua GUI ???
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Zitat von Christian Mock <chrimo-@-moccy.xdsnet.de>: (...) pbLua/NXT support there is rather sparse, isn't? Matthias "why don't I do that myself, though?" ---...--- This message was sent using IMP, the Internet Messaging Program. (17 years ago, 3-Sep-07, to lugnet.robotics.nxt)
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| | Re: Ooops! NXT Software Comparison correction
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I can further manipulate the numbers for this timing test by using the enhanced standard firmware's support for adjusting a thread's priority. Here's the results when I tweak priorities: W/O LCD LCD Priorities ---...--- 50617 22608 40/5 63211 27375 (...) (17 years ago, 2-Sep-07, to lugnet.robotics.nxt)
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| | Re: Ooops! NXT Software Comparison correction
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(...) So if I cheat I can move the I2C transaction out of the actual timing loop (which may be what some other folks are doing, effectively) then with a "read" of the Ultrasonic sensor value in the loop and all sensors and motors attached I get (...) (17 years ago, 2-Sep-07, to lugnet.robotics.nxt)
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| | Re: Ooops! NXT Software Comparison correction
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(...) Nearly all of the speed test numbers on Steve's page are wrong. That's because Steve's loop boils down to "how fast can you reliably read the LEGO Ultrasonic Sensor". You can't reliably read a value from that device faster than about once (...) (17 years ago, 2-Sep-07, to lugnet.robotics.nxt)
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| | Ooops! NXT Software Comparison correction
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My bad. When I fiddled with the pbLua code I forgot to turn on the motors and neglected to change the Motor A speed. So when you ran the program, the motors didn't move. I also had uploaded the wrong version to my web site of the version that shows (...) (17 years ago, 1-Sep-07, to lugnet.robotics.nxt)
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| | pbLua GUI ???
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Hi, do you think pbLua needs an IDE/GUI for development ? Normaly, pbLua just needs a working terminal emulation for development... BUT, I've learned from Lego-NXT-Users: that's not enough, NBC/NXC has "bricxcc" !!! pbLua has more than ONE GUI for (...) (17 years ago, 31-Aug-07, to lugnet.robotics.nxt)
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| | Re: pbLua Beta 13c Team Hassenplug NXT Software Comparison Results
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"Ralph Hempel" <rhempel@bmts.com> wrote in message news:46D819C6.700000...mts.com... (...) Ralph, Feel free to pull and reformat the code. You should be the primary credit. I just fiddled around, and I expect that a bit of tweaking by you will (...) (17 years ago, 31-Aug-07, to lugnet.robotics.nxt)
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| | Re: pbLua Beta 13c Team Hassenplug NXT Software Comparison Results
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(...) Walt, Thanks a LOT for updating the example. Do you mind if I pull the code from your site, reformat if necessary and include it in the test code section of my distribution? You will, of course, retain primary credit in the source file. This (...) (17 years ago, 31-Aug-07, to lugnet.robotics.nxt)
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| | Re: Update: Team Hassenplug NXT Software Comparison Results
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(...) Thanks Steve for listing up LEJOS OSEK too! LEJOS OSEK V1.04 also supports Bluetooth based data logging with NXT GamePad. (17 years ago, 30-Aug-07, to lugnet.robotics.nxt)
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| | Re: Update: Team Hassenplug NXT Software Comparison Results
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(...) That's easy. I was updating the page, and when I got about 90% done, Visual Studio crashed, so I had to start over. It would appear the second time through, I skipped that. :) Thanks for checking Steve (17 years ago, 30-Aug-07, to lugnet.robotics.nxt)
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| | Re: Update: Team Hassenplug NXT Software Comparison Results
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(...) Hi Steve, why are pbLua BT-states for NXT->NXT and NXT->PC marked as "NOT YET" ? Thanks for your work Bye Christian (17 years ago, 30-Aug-07, to lugnet.robotics.nxt)
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| | Re: The standard NXT firmware & the case of the missing opcodes
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(...) Could you, please, confirm, that the latest version of NBC then translates the following two commands with three arguments listed in the NBC manual: shr shl to the correct new opcodes of the enhanced firmware (depending on the type of the (...) (17 years ago, 30-Aug-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: Update: Team Hassenplug NXT Software Comparison Results
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I just updated a bunch of things on the NXT Software page. (URL) to everyone who has posted updated stats. Steve (17 years ago, 30-Aug-07, to lugnet.robotics.nxt)
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| | Re: pbLua Beta 13c Team Hassenplug NXT Software Comparison Results
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(...) I've clocked some of the blocks in 1.1 to compare against similar measurements I did in 1.0, and find a speed increase of rouhgly 30-40% or so. Some blocks do even better than this, but some don't speed up as much. There's almost certainly a (...) (17 years ago, 30-Aug-07, to lugnet.robotics.nxt)
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| | RE: pbLua Beta 13c Team Hassenplug NXT Software Comparison Results
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(...) These numbers are quite good. pbLUA is fast. Walt: thanks for doing the analysis. Now that NXT-G 1.1 is out, I wonder how fast it runs. Faster execution performance was one of the features in this release. Perhaps someone can do this (...) (17 years ago, 30-Aug-07, to lugnet.robotics.nxt)
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| | pbLua Beta 13c Team Hassenplug NXT Software Comparison Results
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The Team Hassenplug web site has an NXT Software Comparison at (URL) to help people compare features of different programming languages. The pbLua Beta 13c distribution includes steveTest.txt which was written by Ralph Hempel so pbLua could be (...) (17 years ago, 30-Aug-07, to lugnet.robotics.nxt)
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