 | | Re: Brick Constants in NQC/Bricx
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__SCOUT and __RCX behave as you guessed. There are also defines for __CM and __SPY for spybotics and cybermaster targets, respectively. These constants should work for BricxCC, or any other NQC environment since they are defined by the NQC compiler. (...) (23 years ago, 9-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) OK now I'm less hooked on it. :P The common bottleneck and problem seems to be communicating with the RCX. Here's an idea: Celphone Handsfree Jack -> 1200 or 2400 baud Modem -> LEGO serial IR tower -> RCX Would this work, if the link was (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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Yeah, yeah yeah. :D (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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That IS interesting. I don't intend building a robot out of plywood and buying controller boards, that's no challenge :P But it would be nice to adapt the serial link to the RCX and see what, if anything you could do with it! <Waits for Steve to (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) Now there are TV remotes that are computer controlled, so we don't even have to move our opposable thumb? Technology strides ever forward :PPP How would you get the TV remote control to talk to BrickOS or the RCX software though? (...) I don't (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: 8475 Motor Tests
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(...) The limitation on the train controller is the wall wart - not the controller itself. There was discussion on this in .trains a while back. Someone built a tranformer box with about 3A output IIRC, and ran several trains with it through an (...) (23 years ago, 9-Jan-03, to lugnet.technic, lugnet.robotics)
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| | adding power inlet to technic control center
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Before I blindly go in and screw something up because of lack of electronics knowledge, has anybody already tackled this feat? I assume its very easy with a couple of diodes (maybe too easy) to isolate the batteries from the dc input, but I have (...) (23 years ago, 9-Jan-03, to lugnet.robotics, lugnet.technic)
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| | Re: 8475 Motor Tests
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(...) Holy C......... That's quite high (understatement) for a little LEGO motor. Do you think it's possible that the train controller I used in my test didn't produce enough juice? If that's the case, then the motor has a higher maximum stall (...) (23 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
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| | Re: Can't run software
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(...) Matthais, When I go to device manager and look for graphic cards there is no listing. I assume that means I don't have a graphics card and that is probably the real basis of my problem. Would that be right? Bill Lane (23 years ago, 8-Jan-03, to lugnet.robotics.spybotics)
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| | Re: unique Identifer in RCX
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With BrickOS, you could use the host address; which can be changed on the RCX using the view and program buttons. This would limit you to (what?) 8 or 16 RCXs, but that might be a start. // Joe (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) Ah - OK. But other things in the world (like people) are moving around - it's not always going to be possible to stop, capture a static image - and then reliably navigate based on it. I guess there are niches where such a robot could be (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | brickOS with BricxCC
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So far I have heard from two people who have successfully used brickOS with BricxCC. I'm interested in whether anyone else has tried using BricxCC to edit/compile/download programs to brickOS. Currently BricxCC requires that the cygwin bin directory (...) (23 years ago, 8-Jan-03, to lugnet.robotics.rcx.legos)
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| | dll questions
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I'm working on a new release of BricxCC at the moment and I want to better understand the dll utility - specifically the RCX host address and RCX source port options. I think I understand the RCX host address part. Correct me if I'm wrong. Supposing (...) (23 years ago, 8-Jan-03, to lugnet.robotics.rcx.legos)
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| | RE: 8475 Motor Tests
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I don't have a 5292 motor or I would do this test myself, but it would be possible to get a more direct comparison with the 71427 gear motor. The 1700-RPM output could be geared down to 340 RPM at a gear ratio of 1:5 with 8- and 40-tooth gears. Tony (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: 8475 Motor Tests
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Hi Thomas, Interesting informations ! I added a link to this thread in my motor comparison page... Philo www.philohome.com (23 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
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| | Re: 8475 Motor Tests
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Ok, here is an extrapolated result for the short circuit (stalled) test. The current at 9 volts would be 3.6 amps. Since I did not wish to burn up the motor, I checked current readings at both 3 and 6 volts and also measured the DC resistance and (...) (23 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
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| | Re: 8475 Motor Tests
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(...) Well, check this out: (URL) are a few pictures of the internals of the motor. Quite a few gears! (...) Thanks! TJ (23 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
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| | Re: New RCX sensor: Wire guidance sensor
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(...) Hi Gus, This is a very impressive project. Thanks for sharing the information. I tested your program with a similar bot just to see your program in action. It performed flawlessly. Bob Fay (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | RE: A Generic Idea
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(...) If there are USB Logitec camera drivers for PPC (especially for the ball cams), then try those. Many of the Logitec drivers will work fine with the LEGO cam (considering it's a Logitech cam to begin with). Conversely, the LEGO cam drivers work (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: 8475 Motor Tests
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That figure was the normal operation (no load) figure. What concerned me was that it was a factor of almost 20 higher than the gear motors which normally run about 10mA. Of course, it is very easy to overlook the fact that the gear motor is (...) (23 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
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| | Re: A Generic Idea
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Yes, I think the point isn't whether or not the robot has enough oomph to recognize faces or things like that :D The point is that you can do a *lotta* fun stuff with a camera or mike in a robot, if ONLY you could give the RCX a link to something (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) To clarify, I should say that the software with the cam would probably not even install on a PPC, since it doesn't even install on XP... (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: 8475 Motor Tests
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(...) Yes, I did too. Judging from the performance of the RC car, you'd think the motors would be equivalent to perhaps 8, or more, of the geared 9V motors. The buggy can really zip along! There was one other thing about my test. When the 9252 motor (...) (23 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
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| | Re: 8475 Motor Tests
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This is interesting information, thanks TJ. I must say that I got the visual impression that the buggy motors seemed to have more than a mere 2 - 3 times more shaft power output than the gear motors. The little piece of data which would add greatly (...) (23 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
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| | Re: A Generic Idea
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Steve (...) Under anything after Windows 95? Nope. In fact, only Win3.1 programs running under Win95 can do it easily. Win3.1 programs running under Win98 onwards can't talk to the parallel port at all easily. If you must do it, use PortTalk - a (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | RE: user created programs
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(...) I'll jump in here. The two canted receptors at the front do indeed give a basic direction and range finding ability. The IR signal strength follows an inverse-square law. Double the distance from source to sensor and the signal is reduced by a (...) (23 years ago, 8-Jan-03, to lugnet.robotics.spybotics)
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| | Re: A Generic Idea
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You might be interested in the CMUcam. See (URL) CMUcam is a new low-cost, low-power sensor for mobile robots. You can use CMUcam to do many different kinds of on-board, real-time vision processing. Because CMUcam uses a serial port, it can be (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | 8475 Motor Tests
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Last night I performed a few quick tests on the 5292 motors (the new motors from the 8475 Race Buggy set: (URL) to compare them to the standard geared 9V motor ((URL) summary, the 5292 motor (when geared down to match RPM of 71427) has about 2.33 (...) (23 years ago, 8-Jan-03, to lugnet.technic, lugnet.robotics)
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| | Re: A Generic Idea
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To get a PDA to interface to RCX is easy, i am right in thinking that TV remote is the same freqency etc as RCX? If so go to pdawin.com and get TVRemote (URL) i use version 3.1 which can learn commands, and we can display this on the PC and control (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: Brick Constants in NQC/Bricx
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(...) Yes - I don't know about Bricx - but the NQC example programs contain one that says: #ifdef __RCX ...and (more significantly) the system file 'compiler/rcx2.nqh' contains #if __RCX==2 #if defined(__SCOUT) ...and a bunch of other defines (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) Start with arXiv.org. You should also hit each of the CPU makers whom you have interest in and review their Application Notes carefully (Intel has a lot of app notes that are graphics related). You'll want to get all the 'Graphics Gem' code as (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: Brick Constants in NQC/Bricx
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(...) Thanks Brian, but I´m looking for ways to determine the brick at compile time, not at runtime, since the generated code must match the target API. (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: user created programs
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Yes, your new page is good and what we need. But I immediately have a question: It seems there are two pairs of canted receptors, two at front, and two at about mid-board. This implies there is some inherent directional sensing? I assume at least (...) (23 years ago, 8-Jan-03, to lugnet.robotics.spybotics)
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| | Re: A Generic Idea
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(...) I extrapolated your complaints that PDAs have OS's where the c compilers don't have libraries to do the simplest things... : ("You need more than that though. Along with your C compiler, you need a set of libraries that give you access to the (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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Rob Limbaugh wrote: > So, the questions (to me) become: > 1) Does a cordless phone transceiver pair have the ability to handle the data rate of a USB device? The most bandwidth you can get out of a regular analog telephone line is 56Kbaud. (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: Brick Constants in NQC/Bricx
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See (URL) (but don't get your hopes up). (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) Yes - I can control the RCX from my SONY Television remote (which is a programmable one) by 'teaching' it key commands from the Lego Remote - so if your PDA can act like a learning remote - it can drive the RCX and Scout bricks. (...) Yep - (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: unique Identifer in RCX
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I could only find this thread: (URL) which gives a non-authoritative "no". I glanced through Kekoa Proudfoot's librcx ((URL) and found nothing in his rom header file (rom.h). (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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Has anyone any practical experience of what robotic image processing _can_ be done on a single-chip computer such as an RCX, PIC, etc.? Any links to research papers? Peter (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: New RCX sensor: Wire guidance sensor
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(...) I've seen similar things on sale in my local branch of Fry's here in the USA. I wish they'd make a vacuum-cleaner that worked on similar principles. ---...--- Steve Baker ---...--- HomeEmail: <sjbaker1@airmail.net> WorkEmail: (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: New RCX sensor: Wire guidance sensor
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(...) Huh! Well - if only I'd done a web search I'd have known that! (URL) it works, it's not a bad deal at $199. ---...--- Steve Baker ---...--- HomeEmail: <sjbaker1@airmail.net> WorkEmail: <sjbaker@link.com> HomePage : (URL) : (4 URLs) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Sumo-bot Four scheduled and new official rules posted.
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You have been challenged to a sumo-bot wrestling match that will occur on Saturday, January 25th., 2003 at 2:00 PM. The location for this event will be in Ann Arbor, Michigan. The official sumo-bot rules have been updated to reflect recent (...) (23 years ago, 8-Jan-03, to lugnet.org.us.lrgoaa, lugnet.org.us.michlug, lugnet.robotics.events, lugnet.org.us.laflrc)
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| | Re: New RCX sensor: Wire guidance sensor
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(...) I don't know what principle it works on, but Brookstones was selling a autonomous robot vacuum cleaner recently. It was in the store I was in before christmas. -Kyle (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: H-bridge for PDA?
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(...) I have an E-125 and it will take a little more than a simple H-Bridge. Though I agree, it would be a fine platform for doing robotics. One idea that we've been playing around with at Hangar 18 is swarm computing. What the basic idea is to use (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Brick Constants in NQC/Bricx
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Are there predefined constants generated by Bricx or NQC that identifies the Brick (RCX, SCout ...) to wich the generated code is targeted for? It would be really usefull to write "multi-Brick" code in a single source trough the use of #ifdef. Paulo (...) (23 years ago, 8-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) Yeah - well - "most" OS's: DOS, Solaris, Irix, Linux, FreeBSD, BeOS, OS-X.... :-) ---...--- Steve Baker ---...--- HomeEmail: <sjbaker1@airmail.net> WorkEmail: <sjbaker@link.com> HomePage : (URL) : (4 URLs) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | H-bridge for PDA?
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Since the end of story there - I wonder if not would be possible to make a lego robot out of a CASIOPEIJA PDA or something the only thing that is needed is some H-bridges for motor driving? (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: user created programs
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(...) Looks like a good start. I'm particularly interested in the details of what the controller sends out to the brick under the different states it can be in (remote vs action mode). (23 years ago, 8-Jan-03, to lugnet.robotics.spybotics)
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| | Re: user created programs
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(...) Ralph's book is not very technical, but does have some wonderful basic to advanced information. I am working on the following page: (URL) when this is a little more complete, it will be of some value to you. Steven (23 years ago, 7-Jan-03, to lugnet.robotics.spybotics)
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| | Re: New RCX sensor: Wire guidance sensor
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hi Philippe, (...) Unfortunately, I think you're right :-( But if you never shoot, you won't hit anything. Stef Mientki (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: New RCX sensor: Wire guidance sensor
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"Philippe Hurbain" <philohome@free.fr> wrote in message news:H8C9HB.6qJ@lugnet.com... (...) the (...) with (...) be (...) Seeing this get me thinking of the lawnmower that my father has. It made by Husqarna (a Swedish company) and it is a fully (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: New RCX sensor: Wire guidance sensor
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(...) Actually the first vehicle I used to test this sensor is a rack-and-pinion steered car, see a short video (Divx3) here: (URL) This is what I did with my SteerBot as well as (...) Documentation is also why I used a standard roverbot to (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: New RCX sensor: Wire guidance sensor
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Hi Rob and Ross, (...) Sorry, I have neither time nor structure to do that... (...) I hope so ! (...) I have not tested that (my longest track is about 5 meters), but as actual current is fairly low I think that wire can be quite long. I used thin (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: New RCX sensor: Wire guidance sensor
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Hello Stef, (...) Thanks ;o) (...) That might work, but getting a high enough field to be detected and be immune to external sources (including earth magnetic field!) would require a LARGE current, not very practical... Philo www.philohome.com (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: New RCX sensor: Wire guidance sensor
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This is beautiful! I, too, have been inspired by the cars driving around Legoland (though in California and Denmark) but my solution has been to use the light sensor on a visible track. It occures to me that it would be very easy to adapt your (...) (23 years ago, 7-Jan-03, to lugnet.robotics)
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| | Re: New RCX sensor: Wire guidance sensor
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(...) Maybe John Barnes would be interested in doing something with this? One other question - do you have any idea how long can the wire can be with the AC generator you built? Regards ROSCO (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: New RCX sensor: Wire guidance sensor
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very good application-idea Philippe, and nicely implemented ! Looking at your idea, brings me on another idea. Shouldn't it be possible to build another wire-follower, consisting of just 1 wire, fed by a DC source and a measured with a Hall-sensor? (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) When did I say that? Talking to a parallel port in C is easy in most OS's. ---...--- Steve Baker ---...--- HomeEmail: <sjbaker1@airmail.net> WorkEmail: <sjbaker@link.com> HomePage : (URL) : (4 URLs) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) Those sound interesting - I did a Google search and turned up several of them on web sites in Germany - nothing much in the USA - and no indication of prices. However, they claim to produce up to 14Kbaud data rates and they have a nice simple (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) My aging Agenda PDA does integer work at about the speed of a 100MHz Pentium. Floating point performance is terrifyingly slow though. Since the Agenda is a couple of years old now, I'd expect PDA's to be two or three times faster by now - so (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: Spybot Promotional Materials?
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"Rob Doucette" <lego@nospam.doucettenet.com> schrieb im Newsbeitrag news:H89F2M.LKJ@lugnet.com... (...) insight (...) Yes I have seen it in action. This is the setup I wrote about in the other thread: "Controller Channels" Reg. Matthias (23 years ago, 6-Jan-03, to lugnet.robotics.spybotics)
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| | Re: New RCX sensor: Wire guidance sensor
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Thats amazing! I'm impressed. When are you going to mass produce for the world market? -Rob "Philippe Hurbain" <philohome@free.fr> wrote in message news:H8B9FH.Jvq@lugnet.com... (...) track. (...) be (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | New RCX sensor: Wire guidance sensor
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Inspired by vehicles moving precisely along the roads in Miniland, I have created this homebrew sensor, which allows a RCX robot to follow a wire track. Since distance between sensor and wire can exceed 1 cm, the wire may even be hidden below (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: Can't run software
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|
"Bill Lane" <lane@pipeline.com.au> schrieb im Newsbeitrag news:H8A341.L5K@lugnet.com... (...) the (...) was (...) bit (...) the (...) display (...) But it gives me a good clue what is wrong. Our installation runs fine at 1024x768, 32Bit. So that (...) (23 years ago, 6-Jan-03, to lugnet.robotics.spybotics)
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| | Re: How can I get a Mindstorms Ultimate Accessories Kit??????
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Thanks for the kind offer, but it recently became available online again for Canada, I ordered it (by phone... I HATE that) from Lego.com sunday. However, they sure do take their sweet time to ship it to me... (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) It's actually worse than that since 56k is only 33.6k upstream unless you have a special line. Most ISP's have these special lines giving their customers 53k/56k downstream. The 53k limit is an FCC thing imposed on older modems that was lifted (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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Speaking of PDAs, specifically Pocket PC's, the HP iPAC 5450 has Consumer IR, will that automatically take care of the comm thing with the RCX? Then I guess that would be ideal, tho expensive ($700 in Sweden). But that's provided there is a (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: makedepend variable in Makefiles
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|
Investigating into this further, apparently from the comments in CVS, a change was made to the makefile in legOS\boot (Rev 1.2) and legOS\demo (Rev 1.2) some three years ago. The comment stated "replaced makedepend by MAKEDEPEND". But no similar (...) (23 years ago, 6-Jan-03, to lugnet.robotics.rcx.legos)
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| | RE: A Generic Idea
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(...) Oh, that's about 2% of the price i am paying. Can you please provide a source for this? Thanks, Till (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: user created programs
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|
"Mark Ferris" <markdf2001@yahoo.com> wrote in message news:g59e1v0qegpg0ol...4ax.com... (...) Well, I am one of the people who has stayed away from them despite following this and other lugnet groups, and having several RCX's (and DSDK, DDK). There (...) (23 years ago, 6-Jan-03, to lugnet.robotics.spybotics)
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| | Re: A Generic Idea
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(...) Sigh. I wish you would read the rest of my message and discover that I address that issue(!), instead of chopping the messages up into neat pieces which you can "deal with". (...) See? (...) Who talked about live video? I was talking about (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) I summarized neatly too, while he got into the intricacies of DTMF and Phreaking in the 70s... :D (...) It wasn't a generic solution, it was a generic idea. The generic cel phone would provide a generic link to any generic PC in the world. You (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: How can I get a Mindstorms Ultimate Accessories Kit??????
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(...) In Lego.com, there seem to be availability problems in the U.S. and Canada, but it is still available in Europe. And in New Zealand, they are accepting orders to be shipped by Jan 27. Don't give up hope yet! =8D (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: How can I get a Mindstorms Ultimate Accessories Kit??????
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I don't know where you are located, but the local Fry's in Oregon (Fry's is a large electronics shop) has shelves full of them (except for the one at my house, that is). I was surprised to find them, but they must have dragged them out of a (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | RE: A Generic Idea
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Steve Baker summarized neatly: The big design issue is whether to have the brain near or far. If far, you need more communications bandwidth, but you can have a mongo brain. If near, you can minimize your investment in communications overhead, but (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: Can't run software
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Hi Matthias, Thanks for your reply! It didn't actually solve the problem. But it did get me looking again and going over the options. The good news is that the software is now running and we can access most of the features. So what was the problem? (...) (23 years ago, 6-Jan-03, to lugnet.robotics.spybotics)
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| | Re: A Generic Idea
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(...) That struck me just as I left to visit my father - someone's gonna have to program the thing ... ;) Well, I guess you'd just have to buy the PDA with the most open architecture. And the first (maybe only!) language you'd see would most likely (...) (23 years ago, 6-Jan-03, to lugnet.robotics)
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| | Re: workaround.patch for h8300-hms-ld crash
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(...) No problem. Stupid lugnet server stripped out the attachments. Here is the patch, both attached and inline. BrickOS maintainers: How about applying (some ideas from) this patch? Max Index: Makefile.user ===...=== RCS file: (...) (23 years ago, 6-Jan-03, to lugnet.robotics.rcx.legos)
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| | Re: Transmitting time USB vs serial
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(...) Michael, I tried your programs on Windows and Linux. On Windows 98 the USB tower takes about one second to reply (990 - 1100ms). On Linux it took about 9 seconds as you indicate. This looks like a problem with the Linux USB driver. I will ask (...) (23 years ago, 5-Jan-03, to lugnet.robotics.rcx.java)
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| | Re: A Generic Idea
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(...) Yes - but when they install ISDN or DSL on your line, they switch out some electronics at the telephone exchange - remove some line filtering, pull out the digital part of the stream from the analog part, etc, etc. If you just have the audio (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Re: Cybermaster faults
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Hello, Did you only buy the mobil unit or did you get another tower with it? The two unit could have different fequencies. The cybermasters I have both have 26650 and 26950 MHz crystals. (or something like that). Lars Gertsen - Denmark "mick (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) Yeah - but the amount of CPU horsepower to do that (on the robot remember) is comparable to the horsepower you'd need to extract the edges and do some simple image recognition. So why transmit the image at all? (...) Yes - but they don't (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Spybot Promotional Materials?
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Has anyone seen these before: (URL) appear to be promotional materials for the Spybotics sets. Any insight would be appreciated, -Rob. (23 years ago, 5-Jan-03, to lugnet.robotics.spybotics)
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| | RCX I/O extension
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hi there, as you may know, the RCX contains only 3 inputs + 3 outputs. and if you ever tried to build a real robot with it, you may also know that this is far from sufficient. to solve this problem, we built some extension called LEPOMUX. it uses on (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) Yes - using the RCX as a fairly dumb motor controller and sensor input device makes a lot of sense. I've been doing that with the (even more primitive) Scout computers using the RCX as the 'brain'. (URL) modern PDA would make an excellent (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Snaptrax tracks
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Hi there, I am just wondering - Snaptrax, the Spybotics tracked thing looks like it has longer rubber treads than treads included in RIS. Is it true or not? I tried to build treads with similar design and it looks like there's much more friction (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Re: LNP problem
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(...) This works in deed! Thank you so much Michael! No way I would have found this myself. BB (23 years ago, 5-Jan-03, to lugnet.robotics.rcx.legos)
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| | Re: LNP problem
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(...) Ok. This is indeed the result if you run the original LNP package. There are several problems with your sources, too. So try the following to get things done: First, go to the lnpd subdir and edit rcxtty.c. In function tty_init you find a line (...) (23 years ago, 5-Jan-03, to lugnet.robotics.rcx.legos)
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| | Re: LNP problem
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(...) Thanks. Too bad it doesn't work, but at least now I know it's not me :) Please let me know if I can be of any help. BB (23 years ago, 5-Jan-03, to lugnet.robotics.rcx.legos)
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| | Re: LNP problem
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(...) I know that this won't help, but I tried your program (and the lnptest.c program from the lnp distribution) and got the same errors. No message came through, only frame errors. Will have a closer look at this. Regards, Michael (23 years ago, 5-Jan-03, to lugnet.robotics.rcx.legos)
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| | Re: LNP problem
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(...) You are right, that would have probably given me a segfaut if the handler would have ever been called, but it isn't. Even a single, static printf in the handler doesn't work. What worries me are the error messages lnpd reports: (...) (23 years ago, 5-Jan-03, to lugnet.robotics.rcx.legos)
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| | Re: A Generic Idea
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(...) There's a caveat you miss, it is limited using the forms of modulation that modems use (ie FSK derived). For example ISDN uses a different sort of modulation (ie Q-modulation) and it does 128k over the same phone lines. I use ISDN to connect (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) Well, to find outline of objects you'd need a low-res (easy to simplify and automatically filters out irrelevant details), color (to avoid two objects of the same material getting their outlines fused together by the image processing (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) "All ideas are stupid until someone proves they work." :D No, I've been thinking the same thing. (So it can't be stupid haha). A PDA with built-in webcam (and mike) + hotwiring an RCX input to a serial port on the PDA would probably be the (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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(...) Hmm I chose cel phones because they are pretty standard products (unlike Radio links etc), simple to use (few presses) and so on, but of course, any link to a unit with memory/cpu could be an expansion... (...) ...Like an IR link to another (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Re: A Generic Idea
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Thanks for all the modem input guys, but I think you're getting too ambitious! The communication I was thinking of would consist of maybe dialling+10 button presses on the cel phone. The other end would be waiting for these combinations, just like (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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| | Re: user created programs
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"Steven B. Combs" <stevencombs@yahoo.com> schrieb im Newsbeitrag news:H87J0K.31I@lugnet.com... (...) my (...) the (...) $40??!! 63 EUR was the best we could get here at a distributor. Regular price here is $80 (23 years ago, 5-Jan-03, to lugnet.robotics.spybotics)
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| | Re: Can't run software
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"Bill Lane" <lane@pipeline.com.au> schrieb im Newsbeitrag news:H86Gw9.7x@lugnet.com... (...) Where exactly does this come up? Try to skip the intro with sapce. Uninstall Quciktime and reinstall it. SpySetup might have failed installinng QT I would (...) (23 years ago, 5-Jan-03, to lugnet.robotics.spybotics)
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| | Re: LNP problem
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(...) What about ptr = (char *)&temp; Regards Michael (23 years ago, 5-Jan-03, to lugnet.robotics.rcx.legos)
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| | Re: A Generic Idea
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Nick Tarleton wrote: > I don't know how fast the speaker can change frequency > or how soon it can be reacted to, so I can't get a bandwidth estimate. The telephone system can (at best) transmit at 56Kbaud (that's the speed of the fastest possible (...) (23 years ago, 5-Jan-03, to lugnet.robotics)
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