 | | Designing a bipedal robot leg
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Around a year ago I suppose I asked about curved feet - building a robot with human-like walking characteristics. I never succeeded in the feet (although it turns out some carved foam works very well.), as the robot took one complete step but could (...) (23 years ago, 19-May-02, to lugnet.robotics)
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| | Re: What is exception "StackOverflowError" in method "<clinit>"
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(...) I have tried TextLCD.print() and it really does work. Roger (23 years ago, 17-May-02, to lugnet.robotics.rcx.java)
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| | Serial cable for Dacta Interface 70909?
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I have just bought (second hand) a bunch of Lego Dacta things (9701, 9702) with the computer interface 70909. Of course the serial cable supplied was of the wrong type - Cybermaster Female-Female, this interface needs Male-Female. Does anyone know (...) (23 years ago, 18-May-02, to lugnet.robotics)
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| | Re: Powering motors from the mains
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The current is going through two silicon diodes though, with attendant .5 volt drop through each so consider if that will be a problem in this application. Likely its not. (...) Tom Napolitano tomnap@bersama.net (23 years ago, 18-May-02, to lugnet.technic, lugnet.robotics)
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| | Re: cygwin error
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(...) what do i change and what PATH? (23 years ago, 18-May-02, to lugnet.robotics.rcx.legos)
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| | RE: latest legOS strangeness
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(...) Interesting question. I'll try this at home with my remote and RCX loaded with standard firmware. Anyway, that could only say that the remote control knows that it has to send a OFF (brake) cmd to the RCX when fwd and rev are pressed together, (...) (23 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Powering motors from the mains
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(...) I'd be a little surprised at a bridge rectifier which couldn't accept DC. Many electronic appliances have them these days so that it doesn't really matter what kind of wall wart you use, so long as the voltage is in the right range. The wall (...) (23 years ago, 18-May-02, to lugnet.technic, lugnet.robotics)
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| | Re: Powering motors from the mains
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(...) Yes. That is what I meant. I even believe sincerely that it's what I said. :-) I am not sure who exactly within LEGO first recommended it but if you dig hard enough in lugnet.robotics I believe you will find just such a recommendation.... that (...) (23 years ago, 18-May-02, to lugnet.technic, lugnet.robotics)
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| | Re: Powering motors from the mains
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I think you misuderstood what Larry said (or I misunderstood what you said). I think Larry was saying that you should use the wall wart from the train speed regulator, which is what Lego recommends. Also, I dont see how you could burn out the diodes (...) (23 years ago, 18-May-02, to lugnet.technic, lugnet.robotics)
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| | Re: Powering motors from the mains
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Those who can use a soldering iron, and know their anode from their cathode, could build something like what I did: (URL) black box is a 7809 9v positive voltage regulator. See the data sheet here: (URL) used a 12v wall wart to power the whole (...) (23 years ago, 18-May-02, to lugnet.robotics)
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| | of interest - Fw: BNA's Internet Law News (ILN) - 5/17/02
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 From: "BNA Highlights" <bhighlig@BNA.COM> (...) : : : "The only person sure of himself is the man who wishes to : leave things as they are, and he dreams of an impossibility" : -- George M. Wrong. : : (...) (23 years ago, 18-May-02, to lugnet.robotics)
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| | #9701 Control Lab building set with RCX's
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How many RCX's and what software do you need to control the Vending Machine requiring 4 sensor input ports and 5 output ports at Brickshelf's (URL) it require RCX to RCX or Scout communication, e.g., Robolab mail? Brickshelf recently added building (...) (23 years ago, 18-May-02, to lugnet.robotics.rcx.robolab, lugnet.dacta, lugnet.edu)
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| | Re: Powering motors from the mains
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I have the RCX 2.0 and it doesn't hace any power connector. Lego should have thought about that and at least sell a special adapter. Anyway, they didn't. ----- Original Message ----- From: "Larry Pieniazek" <lpieniazek@mercator.com> To: (...) (23 years ago, 17-May-02, to lugnet.robotics)
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| | Re: Powering motors from the mains
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(...) You can do this but it's not recommended. As the RCX 1.0 has a bridge rectifier on the power input, it's recommended you use a 10v AC supply, to avoid buring out the diodes. ROSCO (23 years ago, 18-May-02, to lugnet.technic, lugnet.robotics)
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| | Re: Kris's VCS ActiveX Component
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(...) It means "hard to find". The fact that you answered 6 months later is proof of that! (23 years ago, 17-May-02, to lugnet.robotics.vc)
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| | Re: Kris's VCS ActiveX Component
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(...) Duncan, check out my website www.snoozysplace.be.tf You will find the latest version over there, and also my emailadres where you can ask me for the password. btw, English isn't my native language, so what does "elusive bloke" mean ? Greetz, (...) (23 years ago, 17-May-02, to lugnet.robotics.vc)
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| | Re: What is exception "StackOverflowError" in method "<clinit>"
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(...) StackOverflowError could either be a stack overflow (maximum depth is 10) or a thread that dies from whatever exception (that seems to be a bug, but I couldn't yet figure out what causes it). I suppose TextLCD.print should work, though I never (...) (23 years ago, 17-May-02, to lugnet.robotics.rcx.java)
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| | Re: Powering motors from the mains
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(...) No, they didn't, that was just a rumour. You can power an 1.5 or 2.0 RCX by connecting a _regulated_ 9V DC supply to the battery connectors (with the correct polarity of course). To power 3 stalled motors I think you need around 1A (not quite (...) (23 years ago, 17-May-02, to lugnet.robotics)
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| | Re: cygwin error
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(...) / (...) 1) gcc for the H8/300 can be called h8300-hms-gcc or h8300-hitachi-hms-gcc. You may need to edit legOS's Makefile.common 2) Is the h8300 gcc in the PATH? Max. (23 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: somewhat off topic, but...
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Repost to proper newsgroup... ===...=== I'm NOT biased because I DIDN'T write the thing... Forth is a wonderful language that has a proven track record. I don't use it in my job simply because management has never heard about it. I don't mean to (...) (23 years ago, 17-May-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Powering motors from the mains
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In lugnet.technic, Mark Morgan writes:> (...) wanted to power, it is exactly what you need and no extra. Those 4548s turn up in the strangest places, though, so haunting old and poorly managed stores (TRU comes to mind, as Mark said!) that carried (...) (23 years ago, 17-May-02, to lugnet.technic, lugnet.robotics)
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| | Re: latest legOS strangeness
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(...) I may be wrong - 'my' RCX is actually my brother's, and is 3 hours drive away - but doesn't the remote control with the official firmware do float when buttons released, but brake if forward and reverse are pressed together? Max (23 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Powering motors from the mains
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(...) Thanks Larry and JB (via e-mail) I'll be following your advice. I'd always assumed the track power connection was hard-wired but this pic shows where a standard connecter attaches. (URL) the speed regulator facility might come in handy too. (...) (23 years ago, 17-May-02, to lugnet.technic, lugnet.robotics)
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| | Re: Powering motors from the mains
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(...) 4548s were 5ukp in Toysrus a while back Someone in the UK has a UK 3 pin adaptor for $5 (URL) sure you can find a UK person to trade a controller. Mark (23 years ago, 17-May-02, to lugnet.technic, lugnet.robotics)
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| | RE: Microscout assembly?
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Last night I took apart my Microscout just to see what was going on... Unfortunately, my pictures look like crap, so it'll be a few days before I post those (at least, the closeups of the guts). In the meantime, you'll have to suffer with my equally (...) (23 years ago, 17-May-02, to lugnet.robotics)
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| | Re: Part modifications
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Don't cut anything. In this exact same situation, I use a pair of medium pulley-wheels, mated together with half-pins through the six outer holes (3 in one direction, 3 in the other). There is very little grip area, but because you are right at the (...) (23 years ago, 17-May-02, to lugnet.robotics)
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| | Re: Powering motors from the mains
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(...) Purist approach is to use a 9V train speed reg and LEGO(r) wires from the speed reg to your motor(s), possibly through the polarity reverser switch to give control. The speed reg is powered from a wall wart trafo so if you buy a UK train set (...) (23 years ago, 17-May-02, to lugnet.technic, lugnet.robotics)
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| | Powering motors from the mains
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I find batteries a pain, especially as there output isn't constant over their lifetime, therefore I'd love to be able to power my motors from the mains. I'd like to know what methods their are are doing this. I'd prefer a purist option but I do know (...) (23 years ago, 17-May-02, to lugnet.technic, lugnet.robotics)
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| | Re: BrickFest 2002 Presenters Wanted
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(...) Sounds like a great line-up, I wish I could make it! Oh, well, there's always next year... ROSCO (23 years ago, 17-May-02, to lugnet.robotics, lugnet.technic)
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| | Part modifications
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Well, this is probably off-topic for this forum, but I couldn't really find a suitable one and it *does* involve Mindstorms parts, sort of. ;) The one piece that seems not to be available but always in need for me is a part with a short axle on one (...) (23 years ago, 17-May-02, to lugnet.robotics)
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| | Re: somewhat off topic, but...
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I'm NOT biased because I DIDN'T write the thing... Forth is a wonderful language that has a proven track record. I don't use it in my job simply because management has never heard about it. I don't mean to imply that languages are chosen by (...) (23 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: latest legOS strangeness
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(...) is (...) Not really.. braking using the current generated by the motor (acting as a generator) once the power is removed from it. H-Bridge has what is called a break bit. The break bit simply shorts the two terminals on the motor together, (...) (23 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: latest legOS strangeness
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(...) Maybe make this selectable with a build option? The bad thing about brake is that it actually draws current (=reduces battery life) ROSCO (23 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: where buy Rot Sensor and Micro Mot in EU
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You can buy the micro motor from your local Lego Dacta distibutor. See a list here: (URL) can get the rotation sensor in the Ultimate Acessory Set (#3801), which has lots of other useful bits, including the remote control and a touch sensor. (...) (23 years ago, 16-May-02, to lugnet.robotics)
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| | Re: Microscout assembly?
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Hmm... Well, you could try www.mindstorms.com (or whatever it is) and look fo the configuration. I remember looking around that side and seeing some diagrams and shematics. I have that set too, and I have no intentions of taking it apart (lucily) (...) (23 years ago, 16-May-02, to lugnet.robotics, lugnet.robotics.microscout)
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| | Re: where buy Rot Sensor and Micro Mot in EU
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(...) If you check eBay you will find them sometimes. Do a search on 'Lego Mindstorms'. In fact, one Micro Motor just went up for auction to-day. Look here: (URL) (23 years ago, 16-May-02, to lugnet.robotics)
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| | Re: where buy Rot Sensor and Micro Mot in EU
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(...) Well, you can try www.bricklink.com . They are worldwide and are sort of like Ebay for LEGOs. Or maybe check E-Bay. They`ve got lots of LEGO's cheap. Car (23 years ago, 16-May-02, to lugnet.robotics)
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| | where buy Rot Sensor and Micro Mot in EU
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Does anybody know where I can order the Rotation Sensor (#9756) and MicroMotor (#5119) from Europe (I live in Belgium) ? I asked "Lego Direct Europe", but they claim these are not for sale separately. Many thanks ... (23 years ago, 16-May-02, to lugnet.robotics)
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| | cygwin error
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i got this error while trying to setup legOS 0.2.6 i'm running windows XP scott@FAMILYCOMPUTER /legos-0.2.6 $ make depend for i in util lib boot demo ; do make - --unix NODEPS=yes -C $i depend || exit 2 ; done make[1]: Entering directory (...) (23 years ago, 16-May-02, to lugnet.robotics.rcx.legos)
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| | Re: nqc question
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(...) I don't see how that could possibly work - where does this code turn the motor off? You need something like: task sensor_to_motor () { while ( 1 ) /* Do this forever... */ { Off ( motor ) ; /* Turn the motor off */ while ( sensor == 0 ) /* (...) (23 years ago, 16-May-02, to lugnet.robotics)
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| | RE: nqc question
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Roel, If it's not critical to monitor/control the motor with the RCX, you could use Lego's 9V battery box (part #5391 on S@H). It has a pushbutton-type switch. This saves you a motor port, sensor port, and programming. However, it is larger and not (...) (23 years ago, 16-May-02, to lugnet.robotics)
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| | Re: latest legOS strangeness
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I was torn between 'float' and 'brake' when implementing the remote control handler. I eventually opted for 'brake' since that is how the Lego RCX firmware does it. With regard to the strange motor behavior. I too noticed this while debugging the (...) (23 years ago, 16-May-02, to lugnet.robotics.rcx.legos)
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| | Re: nqc question
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(...) What combinations of if while and until did you use? I'm not sure if you tried this already, but I would think that you could simply use the following code: while(1) { if(SENSOR_X == 1) On(OUT_Y); until(SENSOR_X == 0) } that should check it (...) (23 years ago, 16-May-02, to lugnet.robotics)
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| | output to input connection
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I was sitting at my desk trying to figure out what it would take to send a variable value to the computer using NQC, and I couldn't figure anything out. I thought I might be able to use datalogging with a rotation sensor and a motor, but then I (...) (23 years ago, 16-May-02, to lugnet.robotics)
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| | nqc question
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I want to have a motor turn as long as i press a touch sensor and stop when i release it. This is probly a very simple problem but I cant seem to solve it. I tried if while and until but for some reason it didn't work *** email: (...) (23 years ago, 16-May-02, to lugnet.robotics)
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| | BrickFest 2002 Presenters Wanted
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BrickFest 2002 is putting extra focus on both Technic and Mindstorms activities this year. With that in mind, the organizers are looking for individuals or organizations who are interested in giving related presentations. There are already a few (...) (23 years ago, 16-May-02, to lugnet.robotics, lugnet.technic)
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| | Custom ROboloab Investigator projects
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does anyone know of any documentation on creating custom projects for use in robolab investigator? the manual at the tufts site ((URL) suggests such a thing exists but i haven;t been able to track it down asa yet TIA tony (23 years ago, 16-May-02, to lugnet.robotics.rcx.robolab)
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| | Re: latest legOS strangeness
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(...) Nope, shorting the motors has no effect on the batteries actually.. when you spin the motor, it acts like a generator... by shorting out the motor you are actually using the motors own reverse emf (electromotive force) to brake system. I (...) (23 years ago, 16-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Robotics Courses
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Hi, Firstly, can I say that the book mentioned in a previous post on this thread, and its sister publication regarding Lejos, are excellent; I received evaluation copies for a new module we are developing - see later - and they are to be recommended (...) (23 years ago, 16-May-02, to lugnet.robotics)
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| | Re: latest legOS strangeness
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(...) To ansswer my own question. The problem was caused by memory corruption. In this case the memory corruption was caused by downloading a very large program in slot 1, and a small program in slot 7. The loading of the program in slot 1 seems to (...) (23 years ago, 16-May-02, to lugnet.robotics.rcx.legos)
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| | latest legOS strangeness
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I checked out the head of the CVS tree last night and was trying out some of the new stuff. I noticed something quite odd and wanted to see if anyone has any ideas. When I run programs, and the motors aren't turned on they make a stange clicking (...) (23 years ago, 16-May-02, to lugnet.robotics.rcx.legos)
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| | Re: General IR question
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(...) can (...) <snip> here's the link, he hasn't updated in a long time but it is still good information. (URL) (23 years ago, 16-May-02, to lugnet.robotics)
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| | Technic/Mindstorms™ competitions
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The BrickFest organizers are proud to announce the details of the Technic/Mindstorms competitions to be held as part of BrickFest 2002. There will be three competitions, one on each day of the event. Friday, July 19 The Technic Competition - Scree (...) (23 years ago, 16-May-02, to lugnet.events.brickfest, lugnet.technic, lugnet.robotics, lugnet.announce) !!
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| | What is exception "StackOverflowError" in method "<clinit>"
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When running my program (made of several classes), I get the following: (Output from the Emulator, but I get similar result on the RCX of course) *** UNCAUGHT EXCEPTION/ERROR: -- Exception class : 7 -- Thread : 1 -- Method signature : 3 -- Root (...) (23 years ago, 13-May-02, to lugnet.robotics.rcx.java)
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| | Re: Lingo
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No, sorry if I was confusing. EGCS is now obsolete. See (URL) and (URL) Original Message ----- From: "Samuel Winchenbach" <swinchen@eece.maine.edu> To: <lugnet.robotics.rcx...ugnet.com> Sent: Wednesday, May 15, 2002 3:24 PM Subject: Re: Lingo (...) (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Lingo
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(...) EGCS was an offshoot of GCC, with the only difference being how the developers worked together (the bazaar vs. the cathedral model). Eventually, EGCS was declared the victor as most developers switched to it and it became the official GCC (...) (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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| | RE: somewhat off topic, but...
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Kenneth, (...) I wrote it so I'm biased... (...) I'll get to the ttasker in a minute, but pbForth is the only alternative firmware with native support for SERVOS if you use the simple circuit I developed here: (URL) The newest version 2.1.3 has an (...) (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.pbforth)
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| | Re: Lingo
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(...) once (...) site for it anywhere. gcc 3.0.4 was ubdated earlier this year... This whole relationship between gcc and EGCS is very confusing, especially when www.freshmeat.net doesnt even have egcs available! (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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| | somewhat off topic, but...
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anyone tried pbforth ? im doing a comparison between the different possibilities here and looking at pbforth i was somewhat intrigued, until i discovered that you cannot multitask(more than 1 thread of execution). anyone here tried pbforth and can (...) (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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| | Re: RIS software in English?
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I haven’t seen any downloads, and I’ve looked (but the LEGO sites is unfriendly in that regard). However, you can purchase the software for $19.99, plus shipping (about $3), from the LEGO site. If there is a download from the LEGO site, I'd be (...) (23 years ago, 15-May-02, to lugnet.robotics)
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| | RE: RF ideas for the RCX
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|
This just in from one of the newsletters I subscribe to, ===...=== So is the low-power, low-data-rate specification known as ZigBee (IEEE 802.15.4). Pioneered by Philips, this standard is designed to provide ultra-low-cost solutions for applications (...) (23 years ago, 15-May-02, to lugnet.robotics)
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| | RE: HOW to control MANAS with RCX2 and NQC
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dislexic subject ;) sorry. (23 years ago, 15-May-02, to lugnet.robotics)
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| | Re: Lingo
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|
(...) A mailing list without any posts isn't much use :-) (...) gcc is the compiler, and it uses the binutils tools. The build script just automates the several commands you would otherwise have to type. (...) Yep. You need a compiler that creates (...) (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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| | Who to control MANAS with RCX2 and NQC
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(...) 6:45 PM (...) Hi Ron :) This is an example of how you can control 3 Bionicle Manas. Since so many people contributed to this, I edited the last version of the demo source, I could find at lugnet.robotics, to include a "Thanks to" and some more (...) (23 years ago, 15-May-02, to lugnet.robotics)
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| | Not really Robotics related, but it's very cool Lego.
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Mathematical Lego (TM) Sculptures (URL) are absolutely amazing. -- Baha Baydar bbaydar@hfx.eastlink.ca (23 years ago, 15-May-02, to lugnet.robotics)
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| | Re: RF ideas for the RCX
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I'd suggest simply buying a spare rs-232 tower, taking it apart and using the guts. You'll have full duplex IR, just connect it to your RF xceiver. "Rob Limbaugh" <lego-robotics@crynwr.com> wrote in message news:002101c1faf5$8f...imbaugh... (...) (23 years ago, 14-May-02, to lugnet.robotics)
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| | Re: Lingo
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I forgot one.... arg #9) What do the patches do that come with the build script? there are two of them.... (...) scripts... (...) cross (...) together, (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Lingo
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Sorry to make so many posts here! I am a little confused by some of the lingo I see flying around... so I am going to make a number of questions... #1) In windows, why do we need to download binutils, gcc, and the scripts... what do they all do? #2) (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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I build and install with: make ALL_TARGET_MODULES="" make INSTALL_TARGET_MODULES="" install But I used gcc-2.95.3 (pristine, not cygwin source) (with binutils-2.12, for reference) (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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|
"Samuel Winchenbach" <swinchen@eece.maine.edu> wrote in message news:Gw3upA.J4s@lugnet.com... (...) h8300-hitachi-hms-gcc -O2 -fno-builtin -fomit-frame-pointer -Wall -I/home/Ad (...) ministrator/legos/include -I/home/Administrato...nclude/lnp -I. (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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I think I may have gotten closer. I compiled legOS and that seemed to work fine... I followed the instructions verbatim.... then I tried doing the following: $ cd legos-0.2.6/demo $ rm -f *.o *.lx $ make helloworld.lx h8300-hitachi-hms-gcc -O2 (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Robotics Courses
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Hi Matt, My name is Hazel and I worked with Robotics since 1999. I began to work in Costa Rica, Central America, and now I'm working in Mexico. I work specially with teachers, I research looking for documentation that help them, new tools, design (...) (23 years ago, 14-May-02, to lugnet.robotics)
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| | Re: Hmm... install not going so smooth
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|
"Ed Manlove" <emanlove@ieee.org> wrote in message news:Gw3s5x.Cnx@lugnet.com... (...) What about these errors? /build/gcc-2.95.2/li...temp.c:29: stdio.h: No such file or directory /build/gcc-2.95.2/li...temp.c:30: sys/types.h: No such file or (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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Samuel, From Paolo install instructions (under "2. Build the Hitachi-H8 cross-compiler" last bullet) "Ignore the warnings in compile process. It should work." Essentially you should get some warnings. I suggest you go ahead an try compiling the (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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|
Thanks for everyone's help. I just decided to install all the packages.... but now I have a different problem. I start to compile the cross compiler, and everything seems to be going fine.... except at the very very end. I get the following message: (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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setup.exe Package Listing on cygwin.com will tell you that you need the libintl1 package. Probably dependencies for grep are incorrect, otherwise it would have been installed automatically. ----- Original Message ----- From: "Samuel Winchenbach" (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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Samuel, Yes I have seen this error. I am guessing your install a couple of weeks ago was actually using B20 version of cygwin? or that you have reinstalled cygwin? I was moving things around and got this error along with some error dialog boxes (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | RE: General IR question
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(...) A bright (white/blue) light, just like when you point a TV remote to a regular CCD video camera (usually very IR sensitive). mc. (23 years ago, 14-May-02, to lugnet.robotics)
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| | RE: software-controlled motors
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This modular RCX ideia is perfect, very LEGOish in did :) (...) <OFF-TOPIC> IMHO, TLC isn't thinking "LEGO" anymore... It lost the main original ideia that made LEGO look so logic, modular and limitless (and fun). The ideia behind the newer sets (or (...) (23 years ago, 14-May-02, to lugnet.robotics)
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| | Re: Camera and legOS
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1. the Vision Command Camera and writing software for the camera 2. interfacing your software with a legOS powered robot. 1. The Lego Vision Command is actually a Logitech USB camera repackaged inside some lego pieces. There is a [mostly inactive] (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Hmm... install not going so smooth
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Hello, I decided to scrape my machine today and when I tried to reinstall legos I ran into a problem compling the cross compiler under cygwin. Here is a list of the packages I have installed: Cygwin Package Information Package Version ash 20020131-1 (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: General IR question
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Someone has a site with a video of a robot they made. In the video, you can see the two IR LED's blink. The site owner made a comment about what the blinking was caused from. Unfortunately, I don't remember the site address... I think the site had (...) (23 years ago, 14-May-02, to lugnet.robotics)
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| | RF ideas for the RCX
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Hello everyone, My apologies for the rather long post, but I implore those interested to read on. My hope is that someone can help offer solutions to the following ideas. For the past several months, I've been attempting to find a reasonable (...) (23 years ago, 14-May-02, to lugnet.robotics)
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| | Re: General IR question
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(...) IR sensors (of the type used by the military for night operations for example) operate over some fixed range of IR frequencies - some work in the near IR (or perhaps even somewhat into the Red end of the visible spectrum) - others in the far (...) (23 years ago, 14-May-02, to lugnet.robotics)
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| | Re: General IR question
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Typical remote control IRs like the RCX system are usually in the 870 - 950 nm range, just below visible red. A standard silicon CMOS camera chip will "see" this fine unless it has an IR cut filter (commonly installed in camcorders etc). Silicon is (...) (23 years ago, 14-May-02, to lugnet.robotics)
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| | Freebsd 4.4 and legos
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Ok i just started using freebsd and i was wondering if anyone could tell me what tools i need to install to make legos compile and run correctly. Thankx, Jason Hensler (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: More problems with floats
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(...) It turns out to be the egcs 1.1.2 I compiled; the RPMs from sourceforge work fine. I'll try to find why my compiler was buggy... Thanks for your reply. Eric (23 years ago, 13-May-02, to lugnet.robotics.rcx.legos)
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| | General IR question
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In general, what's the difference between the IR "signal" that the tower and RCX use to communicate and the IR energy used in thermal imaging? Is it just a matter of frequency? If the RCX was pointed at an IR camera, what what would it see? -- Dan (...) (23 years ago, 13-May-02, to lugnet.robotics)
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| | Re: Infrared communication expansion?
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2 ways that have worked for me, both using the long range IR mode: 1) Point the RCX's IR Port at the ceiling and your IR Transmitter/ reciever unit at the ceiling and bounce the signals off your ceiling. I have vaulted ceilings painted white and get (...) (23 years ago, 13-May-02, to lugnet.robotics)
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| | Re: software-controlled motors
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(...) What I'd like to see would be a Lego computer that was as flexible, expandable and reconfigurable as the mechanical parts of the Lego system. I'd like to think in terms of using something like an I2C bus between 'modules' - where a module (...) (23 years ago, 13-May-02, to lugnet.robotics)
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| | Camera and legOS
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I wonder if anyone knows about the compability between legOS and the camera set named Vision command that are available for the Legorobot? Has anyone made any progress in trying to get it to work wíthin legOS? We are to guys at the University in (...) (23 years ago, 13-May-02, to lugnet.robotics.rcx.legos)
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| | wireless vision command?
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I have many questions about my vision command kit (still unopened). The biggest one un-answered is: Is there a wireless usb connector of some sort to allow wireless communication between the vision command camera and a PC. Currently, as we all know, (...) (23 years ago, 13-May-02, to lugnet.robotics)
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| | Infrared communication expansion?
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I'm curious to know if anyone has expanded the communication of the infrared on the RCX brick to a point where it could be interacted with on a 360 degree scale. Somewhat like a radio frequency although the communication does not require going (...) (23 years ago, 13-May-02, to lugnet.robotics)
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| | Re: Unknown Return Code
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(...) This may not be what you want to hear, but I would recommend trying BricxCC instead of NQC Edit. Downloading firmware and programs works just fine with BricxCC. John Hansen (URL) (23 years ago, 13-May-02, to lugnet.robotics)
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| | Unknown Return Code
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Hi, I'm just getting started using mindstorm, and I'm having problems setting up everything to start with NQC. I'm using RIS 2.0, and NQC Edit on Windows 2000, but any time I try to download any firmware or programs, I get a message saying "unknown (...) (23 years ago, 13-May-02, to lugnet.robotics)
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| | Re: More problems with floats
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(...) Eric, did you ever resolve this? If not, I could try to reproduce this... but I'd need two things: 1) the type of the return value of getVarVal 2) the type of the bool typedef Also, if you could run your cross compiler with the -v flag, that (...) (23 years ago, 13-May-02, to lugnet.robotics.rcx.legos)
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| | Re: What about this for a new RCX 2.5 setup?
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There is stuff going on. But it isn't my highest priority at the moment :( (...) (23 years ago, 13-May-02, to lugnet.robotics.rcx)
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| | Re: What about this for a new RCX 2.5 setup?
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(...) cost) (...) Replying to my own post, Why not build our own? Glue together some bricks, hollow them out and put in one of these babys: (URL) something similar. The comunity could work out building instructions and develop our own add-ons. (...) (23 years ago, 13-May-02, to lugnet.robotics.rcx)
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| | Re: What about this for a new RCX 2.5 setup?
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(...) What might be doable and best is a documented bus extension (a card plug-in) slot. This could be taken to the extreme by making a cpu unit that just has power (plug-in option of course) and memory (expandable of course) and maybe the IR or (...) (23 years ago, 13-May-02, to lugnet.robotics.rcx)
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| | Robotics Courses
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Hello Liz, First of all, please forgive me for emailing you out of the blue... I happened to see a recent email of yours, and I noticed your signature line detailing the fact that you teach Robotics courses, and it peaked my interest. My company, (...) (23 years ago, 13-May-02, to lugnet.robotics)
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