 | | Re: stop task
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(...) It hasn't, Elizabeth - I'm not upset at John, and he knows *far* more about programming than I do. I just wanted to point out that there are process where abruptly "killing" a thread was one of the best solutions I ever found, due to the speed (...) (17 years ago, 25-Jul-07, to lugnet.robotics.nxt)
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| | RE: stop task
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Everyone, Being fair in the judgement in using a global watchdog flag to terminate a task. Honestly, when I have a multi-threaded process, I have always used a watchdog type of flag, mutex, semaphore, etc. to signal a thread to terminate. I hardly (...) (17 years ago, 25-Jul-07, to lugnet.robotics.nxt)
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| | Re: stop task
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(...) Well, you may not consider that awkward, but having been able to use the "stop" & "start" task commands in NQC, I do actually consider it very awkward. For instance, if I want to immediately stop some task under the "stock" FW... well, I (...) (17 years ago, 24-Jul-07, to lugnet.robotics.nxt)
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| | Re: stop task
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(...) It is not a rather awkward option, imho. That's like saying breaking out of an infinite loop using a flag is awkward and that it would be better to have some form of stop loop keyword that you could use from outside the loop instead. Is it (...) (17 years ago, 24-Jul-07, to lugnet.robotics.nxt)
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| | Re: stop task
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(...) Using a global to flag out of a task is about the only (rather awkward) option I know of. This is one of the things that I really have issues with under the NXT-G FW. (17 years ago, 24-Jul-07, to lugnet.robotics.nxt)
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| | stop task
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I just noticed that there is no function to terminate a task like nqc . "stop" . I am currently setting up a global watchdog variable to signal a task to exit. Suggestion? --Elizabeth (17 years ago, 24-Jul-07, to lugnet.robotics.nxt)
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| | Re: Temporarily removing official NXT driver to use SAM-BA
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FYI, just in case anyone has this problem in the future, I was able to fix it by using "Update Driver" in Device Manager while the NXT was in SAM-BA mode, and telling Windows that I would choose the driver. On the list were the Lego driver and the (...) (17 years ago, 23-Jul-07, to lugnet.robotics.nxt)
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| | Re: It says it is, but it ain't resetting
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Hi, (...) probably some problem with the USB data transfer on your computer, which corrupted the firmware. This seems to occur with some computers, LEGO put out a driver update last year to correct it: (URL) that the ticking sound doesn't (...) (17 years ago, 23-Jul-07, to lugnet.robotics.nxt)
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| | Re: It says it is, but it ain't resetting
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(...) I've resurrected the "dead" NXT using the standard procedures and my home computer. Perhaps, the computers in the lab where smarter than mine. Mine performed the download but froze up. I had to power down and reboot. All is fine now, though (...) (17 years ago, 23-Jul-07, to lugnet.robotics.nxt)
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| | Re: RCX Roverbot morphs to NXT
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(...) The kids in last weeks class got some track models started then they quit when the going got rough. After I finished my model, they realized how much slower tracks are versus wheels. They chose speedy wheels over tracks. It's going to be (...) (17 years ago, 22-Jul-07, to lugnet.robotics.nxt)
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| | Re: It says it is, but it ain't resetting
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(...) I'll try the Briccx and/or NeXTTool approach. Thanks (17 years ago, 22-Jul-07, to lugnet.robotics.nxt)
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| | Orange color with LeoCAD
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Bothered by the weird rendering of orange color in LeoCAD, I have compiled an unofficial version that imports, displays and export correctly this color. Get it here: (URL) (17 years ago, 22-Jul-07, to lugnet.cad.leocad, lugnet.robotics.nxt)
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| | Re: It says it is, but it ain't resetting
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(...) It may just need new batteries. You may want to try putting brand new Alkaline AAs in it and then press the reset button for a long time (or try using BricxCC or NeXTTool to put the brick in SAMBA mode). John Hansen (17 years ago, 22-Jul-07, to lugnet.robotics.nxt)
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| | Re: RCX Roverbot morphs to NXT
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I've been working on a tracked robot for my FLL team to play with. I don't have any pictures, but an MLCAD model is about 99% complete. I need to do the wires and am having fun trying to learn lsynth. Here's an image of the robot: (URL) not sure how (...) (17 years ago, 21-Jul-07, to lugnet.robotics.nxt)
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| | It says it is, but it ain't resetting
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I reset an errant NXT and completed downloading the firmware. But the NXT still would not wake up and stayed in Samba mode. Trying to download firmware immediately after latching the battery pack and hearing the Samba beat, gives me a "Cannot locate (...) (17 years ago, 21-Jul-07, to lugnet.robotics.nxt)
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| | New BricxCC test release
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I have uploaded a new BricxCC test release that includes some new BricxCC features that folks have requested. 1. From the NXT Screen tool you can execute utility functions such as renaming your NXT, resetting Bluetooth to factory defaults, and (...) (17 years ago, 20-Jul-07, to lugnet.robotics.nxt)
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| | Re: New assembler for NXT :-)
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(...) I just had a look at your project. It is very cool! I am very glad to see that someone else is trying to sort out how to generate valid NXT executables. Hopefully you've been able to piggy-back on some of my NBC work so that you haven't had to (...) (17 years ago, 20-Jul-07, to lugnet.robotics.nxt)
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| | New assembler for NXT :-)
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Hi, I'm Matteo Valdina and I'm the main developer of NXTAssembler. NXTAssembler is an assembler for the standard firmware of Lego Mindstorms NXT.This project can be found at (URL) and for information (URL) project is written in Java 1.5 and (...) (17 years ago, 19-Jul-07, to lugnet.robotics.nxt)
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| | Re: RCX Roverbot morphs to NXT
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(...) site. I checked out Goliath I and II at Matthias' site and the Clanker. I can see that the Goliaths are not geared down and the motors are tucked into a well created by the triangular configuration of the thread and the vertical mounting (...) (17 years ago, 18-Jul-07, to lugnet.robotics.nxt)
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| | Re: RCX Roverbot morphs to NXT
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(...) I tend to avoid tracked robots as much as possible, but have found myself using them a significant amount with the NXT for some reason. While this doesn't use "standard treads", here's a good minimalist treaded vehicle (it would be very easy (...) (17 years ago, 18-Jul-07, to lugnet.robotics.nxt)
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| | Re: RCX Roverbot morphs to NXT
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Gypsy, you could have a look here - there are two tracked robots (alongside with building instructions): (URL) von gypsy_fly <e_pilobello@yahoo.com>: (...) ---...--- This message was sent using IMP, the Internet Messaging Program. (17 years ago, 18-Jul-07, to lugnet.robotics.nxt)
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| | RCX Roverbot morphs to NXT
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I brought in all our RCX pieces for this week's "Lego A.T.V. Droid" class. I figured the kids might want to create a tracked robot or two. I made one myself after several kids struggled to create a sturdy base. At the moment, I'm staring at my (...) (17 years ago, 18-Jul-07, to lugnet.robotics.nxt)
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| | Re: nxt interfaces with GPS using nxc or robotc?
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(...) I've been wanting to do this for quite some time. John suggested using the IO map before, but I've never been able to get the data I needed from there. So, having played with LEGO's firmware, RobotC, and looking at other options, the only (...) (17 years ago, 18-Jul-07, to lugnet.robotics.nxt)
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| | Re: Rechargeable Battery Question
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(...) Gus, I appreciate the rapid feedback. Off to order an extended battery pack. Thanks again. Brian (17 years ago, 18-Jul-07, to lugnet.robotics.nxt)
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| | Re: Rechargeable Battery Question
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(...) It's the same. (17 years ago, 18-Jul-07, to lugnet.robotics.nxt)
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| | Rechargeable Battery Question
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I am brand new to the NXT world but I would like to purchase the rechargeable battery. My question: Is the A/C adapter unique to the battery or can a train a/c adapter be used instead? I know the combo pack is only $5 more but I have way to many (...) (17 years ago, 18-Jul-07, to lugnet.robotics.nxt)
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| | Re: nxt interfaces with GPS using nxc or robotc?
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(...) I'm not convince personally that it can't be done with the standard NXT firmware yet but I quite possibly am missing something in my examination of the NXT firmware sourcecode. It seems like the incoming data should be copied into the (...) (17 years ago, 18-Jul-07, to lugnet.robotics.nxt)
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| | leJOS NXJ 0.3 released
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The latest version of leJOS NXJ is finally ready! For those who aren't familiar with leJOS, it's a full replacement firmware for the LEGO Mindstorms NXT brick that allows you to run Java programs on the NXT brick. leJOS NXJ works with Windows, Linux (...) (17 years ago, 18-Jul-07, to lugnet.robotics.nxt)
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| | Re: nxt interfaces with GPS using nxc or robotc?
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(...) Unless John Hansen does some significant rewriting of the FW again, I don't think you'll be talking to your GPS via NXC (or anything else based on the standard FW). The problem is that GPS units like to send strings of charecters, while the (...) (17 years ago, 17-Jul-07, to lugnet.robotics.nxt)
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| | nxt interfaces with GPS using nxc or robotc?
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Hello all, I tried to interface my gps, i.trekz1 solar Bluetooth datalogger, using the NXC. No luck there. Wonder if anyone has played with that at all. (17 years ago, 17-Jul-07, to lugnet.robotics.nxt)
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| | Colors, LDconfig, etc...
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Is there some project to extend LDconfig.ldr to include some recent colors such as Light Stone Gray? Case in point: NXT parts are presently coded in color 383, which works fine with most CAD program but is - as intended - shown as chrome (shiny (...) (17 years ago, 17-Jul-07, to lugnet.cad, lugnet.robotics.nxt)
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| | Java for NXT
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LeJOS NXJ 0.3 is out! After a long and painful delay (especially for the developers) the new and improved version of leJOS NXJ is finally available. This new version has many new features including storing programs and data to flash memory, a menu (...) (17 years ago, 17-Jul-07, to lugnet.robotics.nxt)
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| | New NXC/NBC release is available
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I have released today beta 31 of NBC/NXC. Lots and lots of fixes and enhancements. Some of your code may not compile due to fixes that I have made to the parser. It used to let things get past which it should not have been allowing such as extra (...) (17 years ago, 13-Jul-07, to lugnet.robotics.nxt)
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| | Re: Teaching Bluetooth and Protocols
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(...) Sounds like a great way to test. We could probably try the experiment tomorrow. At the moment, the 10 boys in this week's class are more inclined to play "grab the flag" using automonous robots than BT Remote Control. We experienced the 5 pair (...) (17 years ago, 12-Jul-07, to lugnet.robotics.nxt)
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| | NXTasy challenge #3
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For those not reading TheNXTStep not NXTasy (are there any?) - I organize a new community challenge over NXTasy forums. The challenge is to build a NXT 'ANT' ('ANxT' for short) which carrys a weight over 1 meter distance above ground. The extra fun (...) (17 years ago, 12-Jul-07, to lugnet.robotics.nxt)
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| | Re: Teaching Bluetooth and Protocols
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(...) As soon as I get ten NXTs handy, I'll be sure to test this. In fact, I may know somebody who could test this (or at least I can think of a place, NI Week, where I might). Very odd. Try this. Establish five pairs, and then establoish a sixth (...) (17 years ago, 12-Jul-07, to lugnet.robotics.nxt)
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| | Re: Teaching Bluetooth and Protocols
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(...) Strange indeed, But, that's what we experienced. I have faith that more than 5 pairs can communicate all at the same time. On the other hand, maybe we used up all the channels. Perhaps like in RC airplanes, we ran out of crystals. (17 years ago, 11-Jul-07, to lugnet.robotics.nxt)
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| | Re: Teaching Bluetooth and Protocols
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(...) ... (...) Just to be clear, you got 5 pairs of master/slave NXTs to communicate as pairs? But if you added a 6th pair, then those two could not connect to each other? That's really strange... Ralph (17 years ago, 11-Jul-07, to lugnet.robotics.nxt)
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| | Teaching Bluetooth and Protocols
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I've reached a goal this summer. Last week, 5 kids got into Bluetooth and made simple remote controls. I provided two simple NXT-G programs, BTSend on the Master NXT Remote Control and BTRecv on the Robot Slave. BTSend uses the left and right NXT (...) (17 years ago, 11-Jul-07, to lugnet.robotics.nxt)
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| | Re: Introduction of LEJOS OSEK
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LEJOS OSEK ver.1.03 was just released. (URL) 1.03 includes a minor bug fix and a new interesting application example which is called NXT GT. NXT GT is a Bluetooth based R/C car and you can control the NXT GT by using PC analog game pad controller! (17 years ago, 11-Jul-07, to lugnet.robotics.nxt)
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