 | | Re: Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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(...) Awesome! Great videos! BTW if you want to know how to make bigger tires, try inserting old school 1" Lego tires into the crevices around the large grey "hula hoops" from the star wars kit. This will make tires at least 8" (20 cm) in diameter (...) (19 years ago, 24-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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| | Re: Controling NXT with Bluetooth Device(such as mouse, etc)
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(...) That actually doesn't address the real problem. The NXT has a "dongle" built-in, so it can receive the Bluetooth messages. It just can't understand what it reads. The NXT requires a very specific message format, and that's not what the mouse (...) (19 years ago, 24-Jan-07, to lugnet.robotics)
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| | Re: Controling NXT with Bluetooth Device(such as mouse, etc)
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(...) The problem is the NXT is a USB-slave device: it does not provide either the power (5V) or the communications ability to run a BT dongle (this is a seperate issue from the "shape" of the USB port: that's just a bit of hardware shaping to keep (...) (19 years ago, 24-Jan-07, to lugnet.robotics)
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| | Re: Controling NXT with Bluetooth Device(such as mouse, etc)
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(...) Thank you for answering :-) How about putting a Bluetooth-Dongle to NXT? It will receive HID signal, but dongle will translate the signal into NXT-usable one. I think it will work, how do you think? (19 years ago, 24-Jan-07, to lugnet.robotics)
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| | Re: Controling NXT with Bluetooth Device(such as mouse, etc)
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We had (URL) a discussion about this earlier> when I asked about my Nintendo Wii remote. The only way this is going to work right now is as you suggested: (...) You'll have to write a program that lives on your computer that will relay the messages (...) (19 years ago, 24-Jan-07, to lugnet.robotics, FTX)
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| | Re: Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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(...) I would like to hope so. Those mounting holes would seem perfect to secure rubber cleats to, especially with the ridges on the hard plastic tread underneath. That one piece woulkd change them from semi-decorative to fully robotic functional (...) (19 years ago, 24-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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| | Re: Controling NXT with Bluetooth Device(such as mouse, etc)
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(...) This is not an easy thing to do. While the mouse may support bluetooth, the signals are not the same as what the NXT is expecting. The mouse sends Human Interface Device (HID) signals, while the NXT expects Serial Port Protocal (SPP). Simply (...) (19 years ago, 24-Jan-07, to lugnet.robotics)
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| | Controling NXT with Bluetooth Device(such as mouse, etc)
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Is it possible to control an NXT with Bluetooth device(such as mouse) directly? I watched a video clip from youtube (URL) I want my NXT to do that :-) I read 'Bluetooth Developer Pack'(or whatever it is) and it says NXT requires to receive certain (...) (19 years ago, 24-Jan-07, to lugnet.robotics)
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| | Re: What do these macros do?
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(...) Is it possible to write in the display popup buffer? So that we can do double buffering? I made some quick tests, but it seems the drawing routines always write in the normal display buffer... Julien (19 years ago, 23-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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"Brian Davis" <brdavis@iusb.edu> wrote in message news:JCBttB.GEJ@lugnet.com... (...) I see. I wonder if we'll ever see some kind of rubber plug-in outer surface for these treads? Since they already have mounting holes, it only remains to figure (...) (19 years ago, 23-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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| | Re: Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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(...) Yes, and no. The problem is they are hard plastic with ridges, so if a tread ridge catches on a rough portion of the surface, they push fine... but if the surface is smooth, they'll just slide (very low coefficient of friction). The width is (...) (19 years ago, 23-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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| | Re: Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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"Geoffrey Hyde" <g.hyde@bigpond.net.au> wrote in message news:JCAxx2.8KF@lugnet.com... (...) (URL) forgot to include the URL of the set I was talking about. Here is is above. Cheers ... Geoffrey Hyde (19 years ago, 23-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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| | Re: Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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"Brian Davis" <brdavis@iusb.edu> wrote in message news:JCAvs8.H94@lugnet.com... (...) Have you considered using the new 5-wide treads found in the new Technic Snowmobile? They seem a lot more suited to driving over most surfaces with their added (...) (19 years ago, 23-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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| | Unit LNE of the dinochrome brigade (Was: Rock Crawling)
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(...) The more I thought about this, the more I liked this idea: I wanted to make a really high-mobility vehicle, but the problem with wheels is they are really stopped by steps greater than their own radius (well, partially, ignoring pushing from (...) (19 years ago, 23-Jan-07, to lugnet.org.us.laflrc, lugnet.robotics, lugnet.technic)
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| | Re: NXC News
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(...) Great sites! I have asked Danny Benedettelli to put together an NXC Tutorial based on the existing NQC Tutorial and NBC Tutorial. He's making great progress on that so it should be available soon. And I'm feverishly working on finishing the (...) (19 years ago, 22-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: NXC News
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(...) Matthias, you forgot the other german Workshops and FAQ's ;-) FAQ, Workshop und Tutorial zu NXC gibt es hier: (URL) FAQ, Workshop zu pbLua (URL) Regards Christian (19 years ago, 22-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: NXC News
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Someone sent me a link today to what I guess is one of the first existing tutorials for NXC, at least the first one in German (please correct me if I'm wrong): (URL) if this here allegedly is an "American forum" (HOOOTS!), it might be of interest (...) (19 years ago, 22-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | NXC News
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I have just released a new beta of NBC/NXC. It is available from the NBC website: (URL) has been updated with a few syntax highlighting changes (minor). The latest test release is at (URL) via the link in the NXT News section near the top. Version (...) (19 years ago, 22-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: another comparison
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(...) 1. The DFT certainly may be considered as overkill for a toy robot kit. But I am not sure that this forum considers the RCX or NXT only as toys. To say that NXT or RCX are not made for this or that is like saying to the inventor of the pencil (...) (19 years ago, 21-Jan-07, to lugnet.robotics)
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| | Re: This is the cancer that is killing Lugnet (Was Re: Apology)
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(...) Actually, I think that whilst some parts are getting worse - other parts are getting much better. I'd hold up Wikipedia as a shining example of how the Internet has become a much better place than it once was. The idea that the whole of human (...) (19 years ago, 21-Jan-07, to lugnet.robotics)
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| | RE: another comparison
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Chris Phillips wrote on Sunday, January 21, 2007 7:38 AM "My gut tells me that the RCX (using BrickOS) would give the NXT (using anything available so far) a good run for its money, though..." Once you reach a certain base performance level, then (...) (19 years ago, 21-Jan-07, to lugnet.robotics)
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| | Re: This is the cancer that is killing Lugnet (Was Re: Apology)
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(...) <snip> (...) 'Cause you know, inserting a little levity to make an otherwise argumentative thread a little brighter never helps. (is the sarcasm filter not working??) Lessons learned? Some people want to get in the last snipe, even after all (...) (19 years ago, 21-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: another comparison
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(...) Perhaps a good benchmark would be to write a PID controller and measure the number of control loop iterations per second that can be achieved under each environment. This incorporates sensor input with motor output, and uses a moderate amount (...) (19 years ago, 21-Jan-07, to lugnet.robotics)
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| | Re: This is the cancer that is killing Lugnet (Was Re: Apology)
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(...) Umm... the only person arguing here is you: the original posters had a problem with each other, that they resolved; argument ended. Period. If the two principles have moved beyond this, well... (19 years ago, 21-Jan-07, to lugnet.robotics, lugnet.robotics.nxt, FTX)
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| | RE: Another Challenge. Performance Comparison
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(...) Here's my distilled summary of relative execution speeds of various Mindstorms products / environments. All data is normalized to the fastest performance. Relative Platform Product Speed 1X NXT RobotC 2X NXT Robolab 15X NXT NXT-G 5-10X RCX (...) (19 years ago, 21-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: another comparison
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(...) I'd love to make some other comparisions; actually, some of us have been trying to figure out a good way to do this. Part of the problem is defineing specific "goals" for a battery of tests. A DFT (while impressive), is propably not the best (...) (19 years ago, 21-Jan-07, to lugnet.robotics)
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| | RE: What do these macros do? [IOMAP Access Execution Times
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(...) You're right. IOMapRead and IOMapWrite are very slow functions. They're slow because you pass a character string for the name of the module you want to access; the NXT-G firmware runs through the list of modules looking for a match on the (...) (19 years ago, 21-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: This is the cancer that is killing Lugnet (Was Re: Apology)
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(...) ...//snip... ...snip// (...) In fact, the whole Internet is a wasteland !! Anybody can do anything there!! For me LUGNET/robotics is an excellent forum. I participate for several years now and I must appreciate the contributions of many (...) (19 years ago, 21-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | This is the cancer that is killing Lugnet (Was Re: Apology)
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OK, so from what I can gather: 1) Someone asks a (URL) question>. 2) Steve tells her to make a (URL). 3) John knocks out a brownie-points (URL) comparison chart> in about ten minutes. 4) Steve, having intended to follow his own advice, loses his (...) (19 years ago, 21-Jan-07, to lugnet.robotics, lugnet.robotics.nxt, FTX)
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| | Re: What do these macros do?
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(...) Thanks for your response, John. That tip about the dirty flag not being IOMAPpable is very, very useful; I could have wasted a lot of time working that out the hard way. I'm working on a graphical display widget to show a 'radar' (well, sonar) (...) (19 years ago, 21-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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(...) I've tried the no motor thing, but gave up after I could'nt get it to work. The pulling the ball to the side was one of the first things that I tried, but there are too many things that were uncontrollable. For instance, the direction the (...) (19 years ago, 21-Jan-07, to lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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(...) Thanks to those of you who filled in the set information. I actually got the balls from Bricklink, and the only thing I knew about them was they were from the Harry Potter sets. Peeron has been loading slow for me as well, and with that darn (...) (19 years ago, 21-Jan-07, to lugnet.robotics, FTX)
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| | Re: GBC- Magnetic Ball Separator
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(...) I thought of this immediately, specificly adapting the light sensor / train magent trick to try to get the dragon's egg to register. Alas, I've not gotten it to work (*yet*...), as the ball is not actually magnetic, but just has a piece of (...) (19 years ago, 21-Jan-07, to lugnet.robotics)
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| | Re: Like A Rock Crawler Hauler
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"Steve Hassenplug" <steve@teamhassenplug.org> wrote in message news:6.2.3.4.0.20070...lug.org... (...) way, as my browser displays a 404 File Not Found error. It's title is Unload Truck 2. Other than that I liked the other videos and the pics of (...) (19 years ago, 21-Jan-07, to lugnet.robotics.nxt, lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: GBC- Magnetic Ball Separator
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(...) You may be able to kick the motor entirely. Have you tried embedding magnets in the floor and walls, close enough to attract, but not so much as to grab the ball? You could increase the slope to help with this also. :-) If the ball is magnetic (...) (19 years ago, 20-Jan-07, to lugnet.robotics)
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| | Re: Like A Rock Crawler Hauler
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(...) Well, all my LEGO is tmeporarily put away for a three-year-old's birthday party, but this morning I finally got a Rock Crawler working... and it immediately stalled out in a pile of NXT kit spare parts :-( Sigh. At least it easily drives over (...) (19 years ago, 20-Jan-07, to lugnet.robotics.nxt, lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: GBC- Magnetic Ball Separator
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(...) You mean... [LEGOSet 4767-1] :) (19 years ago, 20-Jan-07, to lugnet.robotics, FTX)
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| | Re: Like A Rock Crawler Hauler
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Hi Steve Hassenplug, Your design is Great!!! Can you put more pics about your structure! Thanks. Juan Antonio Breña Moral (URL) (19 years ago, 20-Jan-07, to lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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(...) Whoa, my apologies for leaving out a smiley in the first posting. I was as lazy as you at the fore, thinking "why not mention which set in the initial post?", so I had to look it up myself. A shame that set seems to have been released for such (...) (19 years ago, 20-Jan-07, to lugnet.robotics)
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| | another comparison
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We have compared the sampling and computing speed of NXT and RCX. NXT uses standard firmware 1.03 and is programmed with the LabVIEW toolkit. RCX is programmed with ULTIMATE ROBOLAB. Both bricks do the same thing: computing the DFT on a small (...) (19 years ago, 20-Jan-07, to lugnet.robotics)
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| | Re: Like A Rock Crawler Hauler
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(...) Very cool Steve... I can also atest the turn radius will stink since I did the same mod to the red tow truck set last year. You said you are using old style light sensors...Interfacing them to the NXT with the converter cables I assume? B (19 years ago, 20-Jan-07, to lugnet.robotics.nxt, lugnet.robotics, lugnet.org.us.laflrc)
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| | Re: GBC- Magnetic Ball Separator
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(...) This one I guess: (URL) GBC module!!! Philo (19 years ago, 20-Jan-07, to lugnet.robotics)
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| | Re: Olsenbande Robotic B&E
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(...) I received a private e-mail from Michael Barrett Andersen with some information about the source of this clip. It is (the opening sequence from?) an old Danish movie from 1979, (URL) This clip was apparently taken from the German dub of the (...) (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Re: Olsenbande Robotic B&E
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(...) I should show this video to people who think LEGO robotics has no practical applications. It certainly does, especially if you need to rob a place. (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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Bah! I was simply too lazy to look it up myself. :D (And Peeron has been loading pages very slowly for me lately.) (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Like A Rock Crawler Hauler
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We've been playing around with Rock Crawlers for a while, so I finally put up a web page with a bunch of pictures and descriptions on it. (URL) addition to my Rock Crawler (and a link to John's trucks), about half way down the page, there are (...) (19 years ago, 19-Jan-07, to lugnet.robotics.nxt, lugnet.robotics, lugnet.org.us.laflrc)
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| | Sensor Input Site URL Changed
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Hello; As many of you know I've kept a website for information on homebrew LEGO Mindstorms Sensors since the beginning of time: www.plazaearth.com/u...i/lego.htm . Unfortunately I had to change the host and lost the URL. Here is the new URL for the (...) (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Olsenbande Robotic B&E
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Maybe this has been posted before, (couldn't find it here) but this is a pretty cool little video anyway. Staged for TV, no doubt, but a great little mechanism here... (URL) (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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(...) For the ball used in the video: Go to www.peeron.com Type "golden egg" (from the description) into the search box, click [Search] Find nothing, so reduce that to "egg", click [Search] Skim the results for matching parts that mention metal. (...) (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Re: Amazon?
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"steve" <lego-robotics@crynwr.com> wrote in message news:45B05D2F.705@ai...ail.net... (...) One thing I have noticed is that if I post to this newsgroup I will get some weird mail delivery failure notice from some blog or RSS feed. Even though I (...) (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Amazon?
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I've noticed that whenever I email this list, I get a bunch of strange messages back from the Amazon.com support line or something. It sounds like someone managed to subscribe amazon.com's autoresponder to the mailing list! Could someone who (...) (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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(...) Er, yeah, um, hehe, I meant to say What set has a steel ball? I'm not dumb, I swear! (19 years ago, 19-Jan-07, to lugnet.robotics, FTX)
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| | Re: GBC- Magnetic Ball Separator
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(...) I think it's a magnetic "ball-separator" - not a "magnetic-ball" separator. :-) I have a bunch of steel ball-bearings in my Lego storage system - so they must be used in one set or another - I have no idea which ones though. There are also (...) (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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What set has a magnetic ball? (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Re: GBC- Magnetic Ball Separator
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(...) Excellent! That looks like a really great addition to any GBC: for one thing, I've often wondered how long it takes to complete "one lap", and you really need a long average (as some modules recycle balls, etc.) I hope it's OK with you if I (...) (19 years ago, 19-Jan-07, to lugnet.robotics)
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| | Re: comments
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(...) When you do that, I recommend you not only test the 9 "on-brick" programming options on the page, but also the 18 "off-brick" programming tools, even if they're not allowed in FLL. :) Woops, guess I shouldn't have told you how many there are. (...) (19 years ago, 18-Jan-07, to lugnet.robotics)
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| | Re: comments
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We seem to be avoiding the real issue here. This free exchange of hard gained knowledge has got to stop. Haven't you guys ever heard of the computer preisthood? What is the rationale for spending hours searching for alternative programming tools, (...) (19 years ago, 18-Jan-07, to lugnet.robotics)
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| | Re: [steve@teamhassenplug.org: Re: Apology]
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(...) Hmm. I'm not sure who you're upset about here, but I think this was a heart-felt effort on the part of two people to apologize for slights, real or imagined, that occured in a public forum. In other words, they both seem to be behaving in a (...) (19 years ago, 18-Jan-07, to lugnet.robotics)
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| | Re: comments
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Ted, I'm not totally sure what you're saying, or why you felt the need to put my e-mail address in the subject line, but I believe the discussion is pretty much resolved. The page that's available: (URL) is pretty complete, and pretty informative. (...) (19 years ago, 18-Jan-07, to lugnet.robotics)
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| | [steve@teamhassenplug.org: Re: Apology]
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This isn't Russia, dude. Your page is good and useful. If someone else wants to put up a better page, then they should get off of their fat "MCPs" and do it instead of critisizing your work. If they can do a better job, then fine. You have no need (...) (19 years ago, 18-Jan-07, to lugnet.robotics)
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| | Re: Apology
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(...) John, Thank you very much. I think this is not only appreciated by me, but also by the community. Nobody comes here because they want to start a fight, or watch a fight. We come here to play & forget the stress of everyday life. This goes a (...) (19 years ago, 18-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Apology
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I would like to extend my sincere apologies to Steve H for posting a software comparison page similar to his and announcing it here. I would also like to apologize to Ralph H for messing up his thread by mentioning the page there. It was wrong for (...) (19 years ago, 18-Jan-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Comparing software
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(...) Good point. I've corrected that. (...) Hopefully, people wanting to program an NXT will be able to see LeJOS is the way to go, for Java. I don't want to try to list everyone who can use the software, but I'd like for someone that's new to the (...) (19 years ago, 16-Jan-07, to lugnet.robotics)
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| | Re: Comparing software
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Hi Steve, (...) Some small suggestions: - PC is a hardware architecture (I have Linux running on a couple of PCs). I think you mean Microsoft Windows. - Lejos for the RCX is used quite a lot in education (mostly introductory courses to programming (...) (19 years ago, 16-Jan-07, to lugnet.robotics)
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| | RE: Comparing software
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Thanks, Steve, that'll be a very helpful resource. Would you consider adding cost (or price range) to the matrix? Also, to me it would be easier to read if instead of having YES/NO columns for the OS (Windows, Mac, Linux), the row had OS? And the (...) (19 years ago, 16-Jan-07, to lugnet.robotics)
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| | Comparing software
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I get a lot of people asking what the "best" software is for the NXT. Of course, this is a complex question that depends on the user, and intended goal of the program. So, for the last several days, members of the Mindstorms Community Partners (MCP) (...) (19 years ago, 16-Jan-07, to lugnet.robotics.rcx, lugnet.robotics.nxt, lugnet.robotics)
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| | Re: What do these macros do?
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(...) Lots of very cool stuff deleted. Sorry I missed your original message, Jeff. You can write to both the Normal and Popup screen memory and toggle back and forth between which one gets displayed. This code flips between the two buffers for 10 (...) (19 years ago, 16-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: Electromagnetic device
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Thanks everybody for the explanations! Everything start to make sense now. I understand that a resitor will limit only voltage across the circuit, but not current, this is very clear also. So, i will look for a small electromagnet, (9 volts) because (...) (19 years ago, 16-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Cooperative assembly line (Was: Car factory)
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(...) Well... huh. First, just getting the GBC standard hammered out took a fair bit of effort. Second, I'm not sure what to build. Several folks have now "shown the way" as to how to build and coordinate a large P&P ("pick and place") type (...) (19 years ago, 16-Jan-07, to lugnet.robotics)
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| | Re: Car factory
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(...) ...plus a big loop of track then a "rail car recycling plant".... :-) (19 years ago, 15-Jan-07, to lugnet.robotics)
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| | Electromagnetic device
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Hi, I was wondering if it is possible to use a electromagnetic device with the RCX and NXT. I tried with this one from a disk drive, and it worked quite well, but a few seconds after it start, the RCX shows the "low battery" icon. (The batteries are (...) (19 years ago, 15-Jan-07, to lugnet.robotics)
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| | Re: Car factory
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(...) How about a rail car factory? Jürgen (19 years ago, 15-Jan-07, to lugnet.robotics)
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| | Re: Car factory
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Janey posted it first, I think, but it didn't get put into the robotics or technic newsgroups (accidentally): (URL) (19 years ago, 15-Jan-07, to lugnet.robotics)
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| | Re: Car factory
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"Brian Davis" <brdavis@iusb.edu> wrote in message news:JBv2uu.LpG@lugnet.com... (...) I have an idea - why wouldn't it be possible to get a team together to come up with a standard modular design for a car factory that everyone can contribute to, (...) (19 years ago, 14-Jan-07, to lugnet.robotics)
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| | Re: Car factory
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(...) There's a little more information over at theNXTstep blog: (URL) that there was in some ways an even more impressive car factory prior to this (it got on LUGNEt a while back), but sadly there's no video of it. Well, I take that back... (...) (19 years ago, 14-Jan-07, to lugnet.robotics)
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| | Re: Car factory
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(...) Very cool factory !!! From this, I relaunch my challenge: Building a self-replicating robot. (19 years ago, 14-Jan-07, to lugnet.robotics)
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| | Car factory
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An amazing video. Looks like it actually builds a Lego car. Has anything like this been posted before? (URL) of video is: MINDSTORMS AUTOFABRIK (19 years ago, 13-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) Rosco is correct. The standard NXT firmware uses a completely different execution model than the old RCX firmware uses. The NXT firmware does not provide any mechanism at all for starting and stopping threads. The only mechanism is to define (...) (19 years ago, 14-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) The problem is that the standard firmware doesn't support starting and stopping of threads AFAIK. But you can start multiple threads by putting precedes thread1, thread2 in your main thread, when it exits both threads will start getting time (...) (19 years ago, 13-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) Besides Precedes and Follows, are there other ways to start additional threads? Specifically, I'd like to start additional threads and then continue the execution of the current thread. I might be misinterpreting this, but it seems that (...) (19 years ago, 13-Jan-07, to lugnet.robotics)
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| | Re: What do these macros do?
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Ok, well, replying to my own message in the best of internet style... I got impatient and starting prodding. After a few hard resets, I came up with the following: Yes, the Get/SetDisplayNormal() permits you to write directly to screen memory. This (...) (19 years ago, 11-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: What do these macros do?
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(...) YES jeff, you need to do your own firmare.. AND it needs to be a form of BASIC!!!!! :) Chris 10 ? clr 20 goto 10 (19 years ago, 11-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | What do these macros do?
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I've been poking around with my NXT, and as usual I've decided to bite off more than I can chew. In trying to discover a way to *unset* pixels on the display without wiping the whole thing, I've been sifting through some of the less-discussed macros (...) (19 years ago, 11-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Not eXactly C beta news (NBC)
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I have released a new beta (b21) of NBC with built-in support for the Not eXactly C (NXC) programming language. The sourcecode and the Win32 binary are already up on the NBC website. The Mac OSX binary and Linux binary will be up later this evening. (...) (19 years ago, 9-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) The presence of both opcodes comes from the early days of NBC when I was trying to understand the executable file format (before the days of documentation) and I knew that in the NXT-G compiler a clump had both upstream and downstream (...) (19 years ago, 9-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) Thanks John - quite clear now. Though I still don't understand why there are 2 different opcodes that can be used for more or less the same thing??? Philo (19 years ago, 9-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) linxt - (URL) - (URL) are others that I have heard about but can't find links for (or recall the names of) at the moment. My nexttool utility runs on Mac OSX and on Linux and it can do all kinds of cool things but it is built on top of libusb (...) (19 years ago, 9-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) Ok, I'll bite: which external tools work well on OS X and Linux? Thanks, -Tim (19 years ago, 9-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) Whoops. The duration values in each of the PlayTone calls should be 400 rather than 40. John Hansen (19 years ago, 9-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) Here is a simple multi-threaded NQC program: task music() { while (true) { PlayTone(262,40); Wait(50); PlayTone(294,40); Wait(50); PlayTone(330,40); Wait(50); PlayTone(294,40); Wait(50); } } task main() { start music; while(true) { (...) (19 years ago, 9-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) Hello John, Could you comment a little the use of Precedes/Follows for task switching? I have trouble figuring when to use one or the other (or both?) Thanks in advance, Philo (19 years ago, 9-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) NXC is something like NQC and it is available for Windows, Mac OS X, and Linux platforms. While NXC is not yet complete, it is very functional with a large API for the NXT. Not eXactly C (NXC) is currently available in the form of NBC beta 20. (...) (19 years ago, 8-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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In lugnet.robotics, Kevin L. Clague wrote: (...) Yes; besides the ones I've personally seen, there are a bunch of them listed on NXTlog. It seems that style of robot is fairly popular. (...) No it doesn't. One solution that works pretty well is just (...) (19 years ago, 8-Jan-07, to lugnet.robotics)
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| | Re: Drive types
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(...) Hi Jonathon, It is possible to build a differential using the NXT parts. It is a bit big, but I have seen it done. I've not used this to make a car, but in general, I don't find three or more wheels interesting. Go for it. It is quite possible (...) (19 years ago, 8-Jan-07, to lugnet.robotics)
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| | Drive types
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Hello, I'm just getting started with NXT and was wondering if anyone has successfully built a car-type robot. By this I mean a robot that uses one motor to drive the rear wheels and one motor to operate the front steering. The NXT kit does not (...) (19 years ago, 8-Jan-07, to lugnet.robotics)
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| | Re: Mindstorms fabrication/manufacturing line...
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(...) this shows her what obsessive really is. Amazing. (19 years ago, 5-Jan-07, to lugnet.robotics)
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| | Re: Mindstorms fabrication/manufacturing line...
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(...) That machine is ingenious. I like the way he has his RCX bricks communicating by traveling along with the assembly line. I also like the frame he made to hold the wheels while the body was pushed onto them. Brilliant. (...) This reply is (...) (19 years ago, 5-Jan-07, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.robotics.rcx, lugnet.technic)
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| | Re: Line Follower
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(...) Thanks Steve! It's perfect. I will use it in one of the NXT robots. But now, part of this project is to show some comunications between two robots, (and the other one is a RCX driven. It will also follow a line). I saw some time ago a small (...) (19 years ago, 3-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: straight line differential drive code
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(...) I built a project to do just what you want. In a tracked vehicle I have each track driven by a separate motor and each also drives one side of a 'differential' but in opposite directions. If both motors run exactly the same speed the sum is (...) (19 years ago, 2-Jan-07, to lugnet.robotics)
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| | Re: straight line differential drive code
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(...) Just one rotation sensor. The differential gives you the difference (hence the name) of the two sides. If it's zero, you're driving straight. A positive rotation means you are turning one way, and negative is the other. It's not pseudocode, (...) (19 years ago, 31-Dec-06, to lugnet.robotics)
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