 | | Re: NXT Program: How to avoid stop-and-go?
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But if the Move block is unlimited will the next block (Wait) be processed? and when it goes to Wait block isn't that mean Move block is done and it will stay in the Wait block for ever, because the vehicle is not moving? (...) (18 years ago, 21-Dec-07, to lugnet.robotics)
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| | Re: NXT Program: How to avoid stop-and-go?
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(...) Try a Move block set to "unlimited": that will turn the motors on and let them run. Then have a Wait block to wait for the US sensor to report an object, or something similar inside a Loop. When an object (like a wall) is detected, the next (...) (18 years ago, 21-Dec-07, to lugnet.robotics)
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| | NXT Program: How to avoid stop-and-go?
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I've just started with my very first vehicle according to the instruction. Then I added the distance sensor. So, my car will turn when it come too close to an obstacle. I use a loop with distance as exit condition, i.e. the loop repeats the forward (...) (18 years ago, 20-Dec-07, to lugnet.robotics)
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| | Re: mindscript (NBC NXC)
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Does that mean NBC or NXC can be used on NXT? Do you use any of them? Where can I find more deatails? C-like is good because I like C :-) Phuoc (...) (18 years ago, 20-Dec-07, to lugnet.robotics)
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| | Re: mindscript - subroutines
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(...) MindScript is a programming language created by LEGO for use with the earlier generations of programmable bricks such as the RCX, and Spybot. It cannot be used with the NXT. The NXT does not have any text-based programming languages that are (...) (18 years ago, 20-Dec-07, to lugnet.robotics)
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| | Re: recharging NXT battery block with DC adapter?
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(...) The reason asking is that sometimes we send teams of students to a country with different voltage in the outlet, i.e. 110V instead of 220V, and the LEGO adapter accepts 220V, but not 110V. However, we have a DC adapter that accepts both 110V (...) (18 years ago, 20-Dec-07, to lugnet.robotics.nxt)
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| | Re: mindscript - subroutines
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I'm so new that I don't even know MindScript :confused: My questions... where to get it and its documentation? Is that the only script language for NXT? When I start using some variables and calculations the block structue is becoming hard to read. (...) (18 years ago, 20-Dec-07, to lugnet.robotics)
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| | "reverse parking sensor" type sensor for Mindstorms
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Does anyone know of a sensor (preferably for the RCX) that works similarly to the "reverse parking sensors" for cars? (18 years ago, 20-Dec-07, to lugnet.robotics)
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| | RIS 2.0 software
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I just gave my 12 year old daughter a RIS 1.0 (yep, an original one with the 1.0 RCX) set for her birthday. Unfortunately, it looks like the software supplied with the set doesn't seem to work with XP (it seems to install, but doesn't want to run). (...) (18 years ago, 16-Dec-07, to lugnet.robotics.rcx)
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| | Re: MacNQC on Intel anyone?
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Sorry I have to bring this up again, I think it would be nice to actually have a universal binary version of MacNQC around. Does anybody know somebody who could help with achieving this? I currently have two Intel-based Macs around (plus two old G3, (...) (18 years ago, 18-Dec-07, to lugnet.robotics.rcx.nqc)
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| | NXT, Bluetooth, and Palm
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Ok, so after 7 years of using my faithful Palm Vx, syncing it to my Kubuntu Linux machine at work put something on it to make it fatally crash every time I ran the calendar. Seeing as this was the most important function of the Palm, I decided it (...) (18 years ago, 18-Dec-07, to lugnet.robotics.nxt, lugnet.robotics.palm)
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| | 2.9.4.
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By the way, the 2.9.4 patch has a bug which fails to get the feedback from the Ultrasonic sensor. Any suggestion? --Elizabeth (18 years ago, 18-Dec-07, to lugnet.robotics.rcx.robolab)
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| | Colour Sensor
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Which command do I use to initialise my Hitechnic colour sensor under NXC on the NXT? Thanks Steve (18 years ago, 18-Dec-07, to lugnet.robotics.nxt)
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| | Re: robolabatceeo/college/tutorials Is not working
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(...) It would appear that they should be able to tell you whether the content will be back online eventually. Apparently it's just a separate machine in their pool that may be temporarily offline. Since the site is still actively linked to, my (...) (18 years ago, 17-Dec-07, to lugnet.robotics.rcx.robolab)
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| | Re: Robo Rocks 2007 (Event Photos)
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Full gallery of pictures from the event, click (URL) here>. Post Moderation P.S. Please pardon the duplicate postings. (18 years ago, 17-Dec-07, to lugnet.robotics, FTX)
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| | Re: Robo Rocks 2007
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We won Second Place!!!!! We were visited by the judges and they told us, the difference in winning First Place was very close! Thank you EBT, thank you Robo Rocks, thank you RCX and RoboLab! Eric Sophie (URL) (18 years ago, 17-Dec-07, to lugnet.robotics, FTX)
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| | Re: Robo Rocks 2007
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We won Second Place!!!!! We were visited by the judges and they told us, the difference in winning First Place was very close! Thank you EBT, thank you Robo Rocks, thank you RCX and RoboLab! Eric Sophie (URL) (18 years ago, 17-Dec-07, to lugnet.robotics, FTX)
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| | Re: Robo Rocks 2007
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My team was able to place one of the three batteries, on the second battery, our robot's B motor wheel slipped on the hub and was not able to complete the course. On our second try, we were able to complete the slolam and place the first battery (...) (18 years ago, 17-Dec-07, to lugnet.robotics, FTX)
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| | Re: Robo Rocks 2007
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My team was able to place one of the three batteries, on the second battery, our robot's B motor wheel slipped on the hub and was not able to complete the course. On our second try, we were able to complete the slolam and place the first battery (...) (18 years ago, 17-Dec-07, to lugnet.robotics, FTX)
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| | Robo Rocks 2007
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I am at the Robo Rocks 2007 robotics competition in Edison New Jersey with my team from the School for Enterprise Business and Technology. We are competing at the Middlesex County College and we are moments away from beginning! It is so exciting! (...) (18 years ago, 17-Dec-07, to lugnet.robotics, FTX)
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| | Robo Rocks 2007
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I am at the Robo Rocks 2007 robotics competition in Edison New Jersey with my team from the School for Enterprise Business and Technology. We are competing at the Middlesex County College and we are moments away from beginning! It is so exciting! (...) (18 years ago, 17-Dec-07, to lugnet.robotics, FTX)
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| | robolabatceeo/college/tutorials Is not working
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(URL) not working. This is the go to place for VisionCamera. Being a classic example of deferred content, I was never able to copy it. I need this badly. May someone suggest an alternative? (URL) (18 years ago, 12-Dec-07, to lugnet.robotics.rcx.robolab)
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| | Re: RoboLab
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(...) Dear Elizabeth, Thank you for your support. I have purchased 2.9.4 and look forward to using LabView Student Version, if NI lets me have it, with the patch NI offers to run the RCX & NXT. My work with the Lego camera is developing on two (...) (18 years ago, 11-Dec-07, to lugnet.robotics.rcx.robolab)
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| | Re: Solved Virtual Memory problem! (was: I can't get the RCX 1.5 software to run on WinXP)
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(...) Might be a 16bit/32bit problem (or similar 24/32bit), precisely 1GB (coded on 32 bits) could return 0 when truncated to 16 or 24 bits by old software. 3000MB truncated to 16 or 24 bits might be OK. Philo (18 years ago, 10-Dec-07, to lugnet.robotics.rcx)
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| | Solved Virtual Memory problem! (was: I can't get the RCX 1.5 software to run on WinXP)
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Okay, I got it working. Here's the short version of the problem: I installed the RCX 1.5 software on a WinXP machine with 1GB of memory. The installation went fine. When I tried to run the program, it beeped and hung with a blanked screen. After (...) (18 years ago, 9-Dec-07, to lugnet.robotics.rcx)
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| | Re: NXTLog sumo Event
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The deadline for the NXTLog sumo (Dec 15th) is approaching. The details are posted here: (URL) summarize: Create a sumo robot, and post it to NXTLog (on the LEGO MINDSTORMS web site). Several robots will be selected and built, using instructions & (...) (18 years ago, 5-Dec-07, to lugnet.robotics)
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| | Re: any video of LEGO fire fighting bots?
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(...) (URL) the video can be found here-- (URL) little slow, mind you--sorry about that. Dave K (18 years ago, 5-Dec-07, to lugnet.robotics)
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| | RE: any video of LEGO fire fighting bots?
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Joe, Certainly there have been instances of lego robots in the contest. The department at Trinity College sponsoring the competition sells videos of the competition each year. I have several of those from years long past. I bought them from the (...) (18 years ago, 5-Dec-07, to lugnet.robotics)
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| | Re: Need help combining steering with odometry in NXC
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(...) Here is a line follower from my book, NXT Power Programming: #define SLOW_SPEED 25 #define FAST_SPEED 75 #define EYE_PORT S1 #define EYE_VALUE SENSOR_1 int BlackThreshold; int WhiteThreshold; inline int min(int v1, int v2) { return (v1 < v2) ? (...) (18 years ago, 5-Dec-07, to lugnet.robotics)
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| | Re: Need help combining steering with odometry in NXC
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(...) If you are really following a line then you should use a traditional line following algorithm rather than try to use motor synchronization and turn ratios. There isn't any reason to synchronize the motors since following a line usually (...) (18 years ago, 5-Dec-07, to lugnet.robotics)
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| | any video of LEGO fire fighting bots?
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I'm giving a demo on Saturday of the Trinity College Robot Fire Fighting contest. There are likely to be a lot of LEGO bot builders there (Fort Collins has one of the biggest FIRST LEGO League followings in the country). I'll be showing some videos (...) (18 years ago, 5-Dec-07, to lugnet.robotics)
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| | Re: Need help combining steering with odometry in NXC
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(...) Update: upon a couple more hours' testing, I found that the above command actually prevents the bot from turning at all. It will only turn if I pass at least RESET_BLOCK_COUNT for the last parameter (of course other combinations that include (...) (18 years ago, 4-Dec-07, to lugnet.robotics)
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| | Re: I can't get the RCX 1.5 software to run on WinXP
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(...) I've got some more info, but it doesn't seem to help. Searching on "Director Player" and "Virtual Memory" turns up tons of hits on other software, totally unrelated to the RCX. But in every case, the listed workaround is the same- increase (...) (18 years ago, 4-Dec-07, to lugnet.robotics.rcx)
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| | Need help combining steering with odometry in NXC
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I'm working on an NXT bot to do the Trinity College Fire Fighting Robot Contest ((URL) at least well enough to get through this Saturday's demo at the local science museum. At the moment, I'm just trying to get the robot to follow the wall (which is (...) (18 years ago, 4-Dec-07, to lugnet.robotics)
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| | Re: NXT compatible bluetooth adapters
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I have a older no-name one with BlueSoleil. But that one didn't work with the instruction I followed. (...) (18 years ago, 4-Dec-07, to lugnet.robotics)
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| | Re: NXT compatible bluetooth adapters
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At the very beginning, I could get the BlueSoleil (the software with an orange in the middle) connect to NXT, no problem. But it was no use, as long as Lego software can't find the bluetooth. But that was only at the beginning. I can't reproduce (...) (18 years ago, 4-Dec-07, to lugnet.robotics)
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| | Re: motor command question
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Hi Patty, I can't really answer this question other to say that I had exactly the same problem a while ago. I talked to LEGO tech support to no avail and they actually sent me a replacement block to fix the problem. However when I got it I had (...) (18 years ago, 3-Dec-07, to lugnet.robotics.nxt)
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| | Re: motor command question
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Because the motors start to turn, then the program reaches the end, and exits. You need to tell the program to "wait for" something after the motors start. Steve (...) (18 years ago, 3-Dec-07, to lugnet.robotics.nxt)
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| | I can't get the RCX 1.5 software to run on WinXP
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Help! I installed the RCX 1.5 software on my WinXP machine. I got no errors during setup, but when I tried to run it I got an error saying it needs 3MB of virtual memory. Running with Win95 compatability settings didn't help. I looked around on the (...) (18 years ago, 3-Dec-07, to lugnet.robotics.rcx)
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| | motor command question
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Why would two motors, set to turn and with unlimited chosen for time out, only turn a couple of times and stop. this motor command is the only command in the program. patty (18 years ago, 3-Dec-07, to lugnet.robotics.nxt)
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| | Re: NXT compatible bluetooth adapters
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Besides, there's an according list on the official LEGO MINDSTORMS NXT site: (URL) certainly not complete, though, but a starting point (and they may be interested in the results of this discussion as well). As for BlueSoleil, I could not get it (...) (18 years ago, 3-Dec-07, to lugnet.robotics)
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| | Re: NXT compatible bluetooth adapters
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I bought the Kensington 33085 and have had that working fine on 3 different PCs. I also bought a no-name bluetooth adapter that uses the BlueSoliel software. I was able to get that one working on the PCs as well. The Kensington, bought for about $50 (...) (18 years ago, 3-Dec-07, to lugnet.robotics)
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| | Re: NXT compatible bluetooth adapters
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I bought one of those "no name" adapters (with Bluesoleil software) $10 (Australian). Of course, plug and no-go. Then I found this: (URL) working now. The adapter has been identified as "ISSC USB Bluetooth Device". (...) (18 years ago, 3-Dec-07, to lugnet.robotics)
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| | Re: Nxc and Mindsensors stuff
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(...) Thank you! But it worked only after firmware upgrade (to version 1.05) and using original NXT flat cables (Mindsensors flat cables are very poor quality). -- alf (18 years ago, 30-Nov-07, to lugnet.robotics.nxt)
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| | Re: recharging NXT battery block with DC adapter?
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My NXT Charger came with my battery. The output of the charger is 10.8 volts, 700 ma 8W. I would just buy the Lego charger. After reaching a full charge, the charger goes into a trickle charge mode. "Pavel Petrovic" <pavel.petrovic@gmail.com> wrote (...) (18 years ago, 30-Nov-07, to lugnet.robotics.nxt)
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| | Re: recharging NXT battery block with DC adapter?
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(...) Whew! I was going to put my question in past tense ("Does this mean that I should have or shouldn't have used the train controller plug ...") but it seemed better to be a fool after doing something not dumb than after doing something dumb! (...) (18 years ago, 30-Nov-07, to lugnet.robotics.nxt)
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| | Re: recharging NXT battery block with DC adapter?
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(...) You should. The NXT battery expects the same wallwart as the train controller and RCX. Philo (18 years ago, 30-Nov-07, to lugnet.robotics.nxt)
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| | Re: recharging NXT battery block with DC adapter?
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(...) Brian, So, does this mean that I should or I shouldn't use the train controller plug thingy that I use for the trains and my RCX? Rafe (18 years ago, 30-Nov-07, to lugnet.robotics.nxt)
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| | Re: recharging NXT battery block with DC adapter?
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(...) I'd say a bad idea, since it's supposed to be supplied with 9-12V *AC* (not DC) power. Like the RCX 1.0, it might work under a DC supply... but that's not what it was designed for. (18 years ago, 30-Nov-07, to lugnet.robotics.nxt)
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| | recharging NXT battery block with DC adapter?
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Hi, Can anybody confirm whether recharging a NXT battery block using 9V or 12V DC adapter is a bad or good idea, please? Seems that LEGO published HW schematics for the brick, but not for the battery block... Pavel. (18 years ago, 30-Nov-07, to lugnet.robotics.nxt)
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| | NXT Power Programming book
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|
As a convinced fan of graphical both programming environments : ROBOLAB and NI NXT toolkit, I would like to share with you how much I appreciate the tremendous work John Hansen has done in the development of BricxCC and more recently in his new book (...) (18 years ago, 28-Nov-07, to lugnet.robotics)
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| | Re: Nxc and Mindsensors stuff
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(...) Well, I use Linux so I completely skipped the part about NXT-G in the docs and I missed the reference to the light sensor. Anyway, that is sort of what I tried (I changed the original program so many times I am not sure). But probably I missed (...) (18 years ago, 27-Nov-07, to lugnet.robotics.nxt)
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| | Re: Nxc and Mindsensors stuff
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(...) I do not have the mindsensors DROD-Nx sensor but I have read the documentation from their website. It says that the sensor is an analog sensor which you can read using the standard NXT-G light sensor block. That means you need to configure the (...) (18 years ago, 27-Nov-07, to lugnet.robotics.nxt)
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| | Re: Nxc and Mindsensors stuff
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(...) To use the DIST-Nx sensor from mindsensors.com you can use the code at this url: (URL) sure you initialize the sensor using the correct type and properly energize it after you configure the port as a lowspeed port. The sample program is setup (...) (18 years ago, 27-Nov-07, to lugnet.robotics.nxt)
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| | Re: Nxc and Mindsensors stuff
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|
Il giorno 12-nov-2007, alle ore 16:59, GiP ha scritto: (...) Hi, I finally got my mindsensors stuff (including a DIST-Nx) and am still figuring out how to use them with NXC. It seems we need only two functions: - a "do a full initialization" one: (...) (18 years ago, 26-Nov-07, to lugnet.robotics.nxt)
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| | RE: RoboLab
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|
Tom. I just read your website. Very Interesting work Just my 2 cents. I'm sure there are more input from the guru out there though. --Elizabeth -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of (...) (18 years ago, 25-Nov-07, to lugnet.robotics.rcx.robolab)
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| | RE: RoboLab
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|
[--] "...Are you suggesting I purchase ROBOLABT 2.9 upgrade from my RoboLab 2.5.4B? Tom, but you must be aware of the risk of using an obsolete product. Honestly though, 2.9.4 is SO solid for most of the rather sophisticated algorithms already for (...) (18 years ago, 25-Nov-07, to lugnet.robotics.rcx.robolab)
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| | Looking for VisionCenter Examples
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I will be developing a program that distills a real time image into a aesthetic number using frequency & spatial filtering, quantitative, morphology and pattern matching through the VisionCenter. My reference work will be to use known masterpieces (...) (18 years ago, 25-Nov-07, to lugnet.robotics.vc)
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| | Re: RoboLab
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(...) Thank you Elizabeth, I am moving towards using LabView with a patch to allow me to run my RCX robot. I am concentrating on RoboLab 2.5.4B and the RCX. (URL) I have a few questions: Are you suggesting I purchase ROBOLAB™ 2.9 upgrade from my (...) (18 years ago, 25-Nov-07, to lugnet.robotics.rcx.robolab)
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| | RE: RoboLab
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You need purchase a copy from legoeducation.com, then download the latest 2.9.4 patch from legoengineering.com (unless legoeducation has already had the patch from their website). The 2.9.X is a gigantic improvement from 2.5. I still do not agree (...) (18 years ago, 20-Nov-07, to lugnet.robotics.rcx.robolab)
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| | RoboLab
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Is anyone looking at these posts? I think I am out of the loop. (URL) seems to be the place to go. Where does one go for fascinating RoboLab programing? (18 years ago, 20-Nov-07, to lugnet.robotics.rcx.robolab)
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| | Re: BricxCC etc vs. MS Robotics Studio
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Dear list, I tried to look this up a little on the (URL) site but could not find it easily: could you please tell me where I can find information or user feedback about use of the MSRS with the RCX? Is it a reasonable choice for fast prototyping and (...) (18 years ago, 19-Nov-07, to lugnet.robotics)
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| | Re: Nxc and Mindsensors stuff
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(...) Actually, I have them. But it didn't help, I tried to use the I2C functions and the usual SetSensorType but I cannot get a meaningful number, maybe I am doing something wrong. Does anyone have an example of a NXC program that read a (...) (18 years ago, 19-Nov-07, to lugnet.robotics.nxt)
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| | Re: Displaying multiple variables
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(...) There's also Steve Hassenplug's Display Number block (find it here (URL) along with some other NXT-G goodies). I use this all the time to display values for debugging. John (18 years ago, 19-Nov-07, to lugnet.robotics.nxt)
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| | Re: Nxc and Mindsensors stuff
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It seems you don't have the latest NXC*.h header files (found in source release of NXC, not in the binary releases), as well as the latest NXC_Guide.pdf describing I2C functions. alf Il giorno 12-nov-2007, alle ore 16:59, GiP ha scritto: (...) -- (...) (18 years ago, 18-Nov-07, to lugnet.robotics.nxt)
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| | 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. (18 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. (...) (18 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 (...) (18 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? (...) (18 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 (...) (18 years ago, 12-Nov-07, to lugnet.robotics.nxt)
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| | NXT Sumo - NXTize it all!
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Some of us here in Indiana and surrounding areas recently got together for a "just for fun" sumo event. We didn't keep score, and in fact the goal was to use stock LEGO models as much as possible. We started out with making five copies of the #8275 (...) (18 years ago, 12-Nov-07, to lugnet.technic, lugnet.robotics)
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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 (...) (18 years ago, 10-Nov-07, to lugnet.robotics.nxt)
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| | NXT Software Version 1.1
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It looks like we will be purchasing an NXT when we visit Carlsbad Thanksgiving week. Now comes the question of software. The computer where we do most programming is a Vista Home Premium eMachine desktop. The computer where we play most is an XP (...) (18 years ago, 9-Nov-07, to lugnet.robotics)
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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 (...) (18 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 (...) (18 years ago, 6-Nov-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Datalogging with the NXT
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(...) :) I know. I have the book. What I was specificly asking about was logging roller coasters or other such rides. One of the early datalogs I did was to monitor the light level near a window along with the sound level for three days. You could (...) (18 years ago, 31-Oct-07, to lugnet.robotics)
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| | Re: Datalogging with the NXT
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(...) There are step-by-step instructions for using the data logging feature of the NXT for measuring light level and similar experiments in the Extreme NXT book. The book also shows how to import the text data files to spreadsheet programs. You can (...) (18 years ago, 31-Oct-07, to lugnet.robotics)
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| | RE: Datalogging with the NXT
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(...) There was a TV show on the Discovery Channel or one of the other science channels a couple of years back on exactly this topic. It was one of the "kids do science things" type of show. They used some other logging device. Unfortunately I have (...) (18 years ago, 31-Oct-07, to lugnet.robotics)
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| | Datalogging with the NXT
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OK, I've got to admit that this isn't exactly "robotics". In fact, it must be about the smallest "robot" I've ever made, in that it was really just the NXT and a single sensor, with a few 3L pins and a studless beam to secure the sensor. But the (...) (18 years ago, 31-Oct-07, to lugnet.robotics)
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| | NXT robot that does Wii bowling
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No, this isn't mine. I just happened across it today: (URL) (18 years ago, 30-Oct-07, to lugnet.robotics)
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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! (18 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. (18 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, (...) (18 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 (...) (18 years ago, 25-Oct-07, to lugnet.robotics.nxt)
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| | Four-stroke pneumatic pump
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Here is my last creation, a four-stroke pneumatic compressor. (URL) only special parts are the small pumps and the crankshaft pieces. This compressor can also be build up partly. I mean you can use one or two pumps instead of four. Depending on the (...) (18 years ago, 25-Oct-07, to lugnet.robotics, lugnet.announce) !
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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"; (...) (18 years ago, 23-Oct-07, to lugnet.robotics.nxt)
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| | Walker useing new leg design
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After a few long weeks of tinkering, I think Ive settled on a final design that I would like to display at the (URL) Toronto Hobby show.> (URL) This is a six leg walker, that uses the leg design of (URL) Theo Jansen> After seeing his video (URL) (...) (18 years ago, 19-Oct-07, to lugnet.technic, lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.announce.moc, FTX) !!
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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 (...) (18 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 (...) (18 years ago, 17-Oct-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Powering 9v Trains using the NXT
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(...) Are you using the NXT on batteries alone, or using the Li-ion battery pack so you can plug the NXT into a wall for more consistant power? (...) As others have noted, this has worked well with the RCX. It's essentially how the GBC trains are (...) (18 years ago, 17-Oct-07, to lugnet.robotics, lugnet.org.us.ulug)
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| | Re: Powering 9v Trains using the NXT
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(...) I'm not sure if there's a better way, and I haven't tried it with an NXT, but I've had good luck with option 2 using an RCX. I isolated the track by putting a bit of clear tape over the ends that connect to the other track sections. -Elroy (18 years ago, 17-Oct-07, to lugnet.robotics, lugnet.org.us.ulug)
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| | Powering 9v Trains using the NXT
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To all, I would like to find a way (simple way that is) to power our LTC 9v trains using both the standard LEGO 9v train modulator and the NXT. We have attempted the following: 1- Power the train simply using the NXT and the converter cables. Too (...) (18 years ago, 17-Oct-07, to lugnet.robotics, lugnet.org.us.ulug)
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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 (...) (18 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 (18 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) (18 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 (...) (18 years ago, 16-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: Prime number generator
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(...) SetUserDisplay hooks up the display to whatever source you specify and until you tell it to hook up to a different source it will continue to display the value of that source until the program ends. The first time that your NQC code enters the (...) (18 years ago, 15-Oct-07, to lugnet.robotics)
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| | (In)compatibility of RC Trains and Power-Functions
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I am trying to determine whether there is any compatibility between the RC trains infrared remote-control protocol and the Power-Functions infrared-protocol. Does anybody know definitely whether a Power-Functions transmitter has any effect on an (...) (18 years ago, 14-Oct-07, to lugnet.trains, lugnet.robotics, lugnet.technic)
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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 (...) (18 years ago, 14-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Prime number generator
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I've been trying to write a prime number generator in NQC by way of exercise to improve my programming skills, but I've run into some unexpected trouble. I have two sets of code that are virtually identical, one in NQC and the other in plain C. The (...) (18 years ago, 13-Oct-07, to lugnet.robotics)
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