 | | Re: anyone know how to check free space on RCX?
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(...) My sources (gcc-3.0) say: #define INT_TYPE_SIZE (TARGET_INT32 ? 32 : 16) A short experiment revealed that sizeof(short)=sizeof(int)=2, sizeof(long)=4. So int is normally 16bit. Only with the switch "-mint32" I get 32 bit ints. This is with a (...) (23 years ago, 12-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: MIBO Kits, Any interest?
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(...) I would think about buying a complete set - all parts included - more than a partial set/kit. I'm not sure how many parts are in a single MIBO to est. costs though. -mark (23 years ago, 12-Jul-02, to lugnet.robotics)
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| | RE: Gutting an optical mouse - Part I
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|
(...) I agree with you in theory. Unfortunately, I don't have resources in optics and know very little about them (basic physics class stuff). The failure of my test may simply be related to illumination. How sensitive is the chip to reflected (...) (23 years ago, 12-Jul-02, to lugnet.robotics)
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| | Re: MIBO Kits, Any interest?
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|
The consturction of Mibo also calls for other parts in quantities that are not as common like two (2) 6585 technic gear housings. What might be useful would be to offer all the parts that Mibo requires that are not in 2 mindstorms sets. Otherwise it (...) (23 years ago, 12-Jul-02, to lugnet.robotics)
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| | RE: A Lego robot that plays the ukelele
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|
Anyone know if there's a movie of this in action? Liz Teacher/Coach CyberStorm Robotics Class and FLL Team Sports for the Mind for Lubbock Homeschoolers (URL) Message----- From: news-gateway@lugnet.com [mailto:news-gateway...net.com]On Behalf Of (...) (23 years ago, 12-Jul-02, to lugnet.robotics)
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| | Question, opinion, help - Claw Hands
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Folks, I'm in a bit of a quandry. Traditionally I don't like "Claw Hands" meaning the kind you see on a Submersable Sub or better know as Pinchers or Grabers. My problem: I'm making a Mid-Sized Technic Fig Scale Robotic Mecha. (4ft.tall biped) I (...) (23 years ago, 12-Jul-02, to lugnet.build.mecha, lugnet.robotics)
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| | Re: anyone know how to check free space on RCX?
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(...) According to config/h8300/h8300.h in the gcc sources, int is 32bit for the h8 cross compiler. I believe the reason mm_free_mem() returns an int is because the memory manager stores the size of each free block as size_t, which is defined in (...) (23 years ago, 12-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: MIBO Kits, Any interest?
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(...) Good point, I didn't think about that. You'd probably at least have a complete RIS. Would 1 RCX and 3 mini-motors make more sense? -Rob. (...) (23 years ago, 12-Jul-02, to lugnet.robotics)
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| | Bricxcc
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Does anyone know what's up with; (URL) need the latest download, and I can't even get into the site. If anyone has the latest download, please email me privately. Thanks, JB (23 years ago, 12-Jul-02, to lugnet.robotics.rcx)
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| | Re: MIBO Kits, Any interest?
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Most folks who want to build MIBO probably already have at least one RCX. Personally, I have two... I might buy a kit without the RCXs. Issac. ----- Original Message ----- From: "Rob Doucette" <lego@nospam.doucettenet.com> To: (...) (23 years ago, 12-Jul-02, to lugnet.robotics)
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| | MIBO Kits, Any interest?
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I'm thinking of putting together a MIBO starter kit which would include: 5 rotation sensors 7 turntables 1 micromotor 1 chain link pack (108 pieces) 1 copy of Jin Sato's book (includes complete MIBO instructions and NQC code) 5 mini-motors 2 RCX (...) (23 years ago, 12-Jul-02, to lugnet.technic, lugnet.robotics)
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| | A Lego robot that plays the ukelele
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A Lego robot that plays the ukelele (thanks to Slashdot for the link) (URL) (23 years ago, 12-Jul-02, to lugnet.robotics)
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| | Re: LBrick.com is up and running
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(...) I'm feeling free and I think it's a nice page with some interesting projects! I'll add your page to the "to be added on the links page"-list I keep for LoTek :) Best regards, /Tobbe (23 years ago, 11-Jul-02, to lugnet.general, lugnet.cad, lugnet.robotics.rcx, lugnet.technic)
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| | Gutting an optical mouse - Part I
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Based on recent discussions of using a mouse as a positioning device and sheer curiousity in exploiting the potential of a PS/2 device in general, I bought one. I couldn't wait to void the warranty! The following is lengthy, just to warn you. Also, (...) (23 years ago, 12-Jul-02, to lugnet.robotics)
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| | Re: anyone know how to check free space on RCX?
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(...) int is defined as the natural width of the processor, which on a 16-bit processor is 16 bits. longs are 64 bits on some machines as well, so you can't assume it is always 32 bits -- if your code cares, use sizeof. (...) 32-bit math on the H8 (...) (23 years ago, 12-Jul-02, to lugnet.robotics.rcx.legos)
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| | Help
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Hi,does anyone know how to set vision command using java language? Now I am woking on a robotic soccer project. But I don't know how to locate the soccer using vision command. Does anyone can help me? Thanks. (23 years ago, 12-Jul-02, to lugnet.robotics)
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| | Re: anyone know how to check free space on RCX?
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That is very interesting Jason. It is interesting that mm_free_mem() returns a 16bit value using a 32bit return code. Both int and long are 32bit value on most computers/compilers these days; short would be a 16bit value; and char would be an 8bit (...) (23 years ago, 11-Jul-02, to lugnet.robotics.rcx.legos)
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| | LabView Books
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Is there a book or web site that discusses the LabView language for RoboLab? -- Wayne T. Watson (121.015 Deg. W, 39.262 Deg. N, 2,701 feet), Nevada City, CA "Hell is truth seen too late." -- John Locke Web Page: <home.earthlink.net/~mtnviews> (...) (23 years ago, 11-Jul-02, to lugnet.robotics)
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| | Re: anyone know how to check free space on RCX?
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While the declaration for mm_free_mem is int mm_free_mem(void) The fact is that the RCX has only 32K of memory available. 32K in hex is 0x8000... there's never a need for more than 4 digits in hex. Looking at key_handler() in kernel/program.c (the (...) (23 years ago, 11-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Ant pheromones
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(...) Another trick to try... A lot of surfaces like electrical and duct tape are shiny - you get a MUCH better reading of the color/greyscale by mounting the light sensor on a slight angle to avoid direct reflection of the LED light. - Gareth (23 years ago, 11-Jul-02, to lugnet.robotics)
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| | Ipaq 3835: using building programs and using built-in IR
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How does one compile programs for a Pocket PC 2002? How would I find the specifications for the IR circuitry to build a program that communicates with the RCX? Tim (23 years ago, 11-Jul-02, to lugnet.robotics.palm)
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| | Re: HOWTO Demo.c
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Brilliant! Brilliant! It works! Many Thanks to Micheal Obenland and also to Steve Hassenplug Best Regards Shehryar "Michael Obenland" <obenland@t-online.de> wrote in message news:Gz1xAM.Inn@lugnet.com... (...) some (...) ---...--- (...) ---...--- (...) (23 years ago, 11-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: anyone know how to check free space on RCX?
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Albert Huang, Sorry for the confusion. "most significant" = upper 16 bits and "least significant" = lower 16 bits (the free memory is a 32 bit value). If you write the values out, you will get the 32 bit value (both values are hex) ... for example: (...) (23 years ago, 11-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: anyone know how to check free space on RCX?
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(...) v0.2.6) When you press the View button (with no program running) LegOS will (...) Joseph, what do you mean by most significant / least significant? I'm under the impression that those two calls just display the same value, in decimal first and (...) (23 years ago, 11-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: RIS 2.0 upgrade kit contents?
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|
Which I would have found out if I'd bothered rebooting and running the software after installing it. Oh well. No such thing as a stupid question, only stupid people. :-) -- Baha Baydar bbaydar@hfx.eastlink.ca ----- Original Message ----- From: "Bob (...) (23 years ago, 11-Jul-02, to lugnet.robotics)
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| | RE: Re: Scheduler patch
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|
Can someone please tell me how to unsubscribe from this group! Thanks, - Subir -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...net.com]On Behalf Of Ed Manlove Sent: Wednesday, July 10, 2002 8:49 PM To: (...) (23 years ago, 11-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Re: Scheduler patch
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Joseph, Not to add too much work load, if you have a chance could you give an overview of the proposals out there for the task scheduling and sensor modifications (if any). This could be simply a quick list of lugnet.robotics.rcx.legos threads which (...) (23 years ago, 11-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: RIS 2.0 upgrade kit contents?
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|
"Baha Baydar" <lego-robotics@crynwr.com> wrote in message news:00a501c22869$81...18@AMON... (...) Yes either tower works. -- Bob Fay THE SHOP (URL) (23 years ago, 11-Jul-02, to lugnet.robotics)
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| | Re: RIS 2.0 upgrade kit contents?
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Drat (to put it mildly :-) It'd be nice if they told you that when ordering so they could be ordered together. Will the 2.0 software even work with the serial tower? -- Baha Baydar bbaydar@hfx.eastlink.ca ----- Original Message ----- From: "Jim (...) (23 years ago, 10-Jul-02, to lugnet.robotics)
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| | Re: HOWTO Demo.c
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(...) Well, that's much easier than all the crap I was going through. I guess it helps if you actually know what you're talking about. Thanks Steve (23 years ago, 10-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: RIS 2.0 upgrade kit contents?
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I did this not too long ago myself. The Upgrade kit is ONLY software. I had to purchase the USB tower separately. (...) Jim West Lugnet Member 63 (23 years ago, 10-Jul-02, to lugnet.robotics)
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| | RIS 2.0 upgrade kit contents?
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|
Hey folks, Does anyone have a list of what's supposed to be in the RIS 2.0 Upgrade set? I ordered one from LEGO S@H and got two copies of the 2.0 software (In two separate boxes no less) and nothing else. I'm going to give them a call and find out (...) (23 years ago, 10-Jul-02, to lugnet.robotics)
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| | Re: HOWTO Demo.c
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To solve your problems with demo.c, you sent me your source. There are some problems with it, but I think they are intresting enough to say something about them. The big problem you get with your program is caused by your main function: ---...--- (...) (23 years ago, 10-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Java version of DiscShooter
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|
I think it would be a great idea to have a fixed robot design and a specified behaviour for that robot and then for people to write various applications to make it work. Is this disc shooter design available somewhere? (...) SNip to keep lugnet (...) (23 years ago, 10-Jul-02, to lugnet.robotics.rcx.java)
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| | Re: Controlling Multiple RCX's from one PC
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|
Lawrie Griffiths has majorly reworked the RCX communications support in leJOS. His architecture allows you to define protocol stacks that sit on top of a basic transport mechanism. He has implemented support for the LNP stack used in legos - which (...) (23 years ago, 10-Jul-02, to lugnet.robotics.rcx.java)
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| | ***legOS new name : deadline is 18.07.***
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As Steve mentioned, the 23.07. is too late for the announcement of the new name at Brickfest. I think it would be great to do so, so I decided to make the deadline at Thursday, 18.07. I will publish the new name around midnight of the 18.07 and (...) (23 years ago, 10-Jul-02, to lugnet.robotics.rcx.legos)
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| | lnp error message..huh?
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woolley thnx for the tip on checking the RCX memory.. now i have another question.. after having run continous messages back and forth between the RCX and my program on my PC for ~10 minutes. i get this error message: ---...--- Transmit error: (...) (23 years ago, 10-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Re: Scheduler patch
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|
(...) I'd built a maze solver. When the solver makes a step (for example forward) it uses the light sensor to search for a wall and the rotation sensor to measure the distance it has traveled. If a wall is hit, the solver steps back until it reaches (...) (23 years ago, 10-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) (23 years ago, 10-Jul-02, to lugnet.robotics)
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| | Re: Re: Scheduler patch
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"Joel Uddén" wrote (...) not (...) Actually, each task gets equal "wakeup" checking. The only difference between a low priority task and a high priority task is that the high priority task gets a larger time-slice when it is awake. This is not an (...) (23 years ago, 10-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Re: Scheduler patch
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(...) Thanks for the link, your solution of proportional timeslicing is more straightforward than mine which I like. The only downside would be that a high prioritized process would have it's wakeup conditions checked less frequently than a low (...) (23 years ago, 10-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Intervista su BimP
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Sorry, the message is in Italian because it was addressed to lugnet.loc.it. Didn't realize I was on the .robotics ng when I clickked the New button... Mario "Mario Ferrari" <mario.ferrari@edis.it> ha scritto: (...) su (...) (23 years ago, 10-Jul-02, to lugnet.robotics)
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| | Re: anyone know how to check free space on RCX?
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kenneth, I believe the code you are looking for is used in program.c (for LegOS v0.2.6) When you press the View button (with no program running) LegOS will show you "FREE", press again, you will get the most significant portion of the free memory (...) (23 years ago, 10-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) When I said "three degrees of freedom" - I didn't mean "X-Y-Z", I mean't X, Y and Rotation-about-Z. Whilst (in theory) a Killough platform moves in X and Y only - they do rotate a little in practice. (...) From reading the specifications for (...) (23 years ago, 10-Jul-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) I don't think anyone has actually *tried* this yet - but it's still worth discussing the *other* issues since we wouldn't want to go to the hassle of ripping apart mice until it's evident that it *could* work. The data stream from the mouse is (...) (23 years ago, 10-Jul-02, to lugnet.robotics)
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| | Re: Ant pheromones (various tapes to use)
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|
Along the same lines, you can get sports floor tape at various sporting good stores. It doesn't leave sticky stuff on wooden gym floors and comes in a lot of colours. -- Baha Baydar bbaydar@hfx.eastlink.ca ----- Original Message ----- From: "Dan (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Re: kits on sale (Toronto) Vision Command 29.99 at KBtoys.com
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BOO! They won't take orders from or ship to Canada. *grumbles* -- Baha Baydar bbaydar@hfx.eastlink.ca ----- Original Message ----- From: <JMccor5760@aol.com> (...) a (...) a (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Intervista su BimP
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|
Io e Giulio siamo protagonisti dell'ultima intervista di Steven B. Combs su Bimp (Bricks in my Pocket): (URL) un intervista interattiva, siamo solo alla terza domanda di venti. E potete anche porre le vostre domande :-) Ciao Mario (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Re: *** legOS new name - second ballot ***
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|
Is there any way voting could be cut down to one week? It would be really nice to have a formal new name before Brickfest (July 19-21). Please send your vote, (...) (23 years ago, 9-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Ant pheromones
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|
You may wish to use Gaffers Tap or Spike Tape (they are the same kind of tape, but Gaffers tape is wide and Spike tape is narrow). Both are available at theatrical supply stores. This tape is designed to hold well but remove without leaving a (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| |
| | *** legOS new name - second ballot ***
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Wow, the LEGOS group folks are fast! Both osmOS and brickOS are good for them, so I start the last and ultimate ballot. Please send your vote, either for brickOS or for osmOS, with the usual identification phrase, to legOS-namepoll@gmx.de The last (...) (23 years ago, 9-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Ant pheromones
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|
Black electrical tape works very well on a mostly white kitchen floor. However, there may be some scrubbing required when the tape is removed. ----- Original Message ----- From: lego-robotics@crynwr.com (Jonathan Spitz) Date: Mon, 1 Jul 2002 (...) (23 years ago, 1-Jul-02, to lugnet.robotics)
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| | RE: kits on sale (Toronto) Vision Command 29.99 at KBtoys.com
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This is a listing for a search for mindstorms at KBtoys.com (6/27/02). I think the Vision Command has been on sale since January for 29.99. LEGO MindStorms: Vision Command Ages 12-17 years Vision Command, featuring the new LEGO Cam, lets you (...) (23 years ago, 30-Jun-02, to lugnet.robotics)
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| | legOS new name - result and new problems
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|
Hi out there, I know you are anxious to hear about the new name of legOS. Good news first: you don't have to flood my mail folder, here it goes... Here is the list of the names together with the phrases, if I got one. So everyone can see if his vote (...) (23 years ago, 9-Jul-02, to lugnet.robotics.rcx.legos)
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| | anyone know how to check free space on RCX?
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|
hi all...after a while my RCX hangs and i think i might have a memory leak somewhere. anyone have, or know of, a function which i can use to check the available memory while my program is running ? regards kenneth johansen kennethj@stud.cs.uit.no (23 years ago, 9-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: HOWTO Demo.c
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|
Can you tell which line it's locking up on? Try commenting out lines until it doesn't lock up (or until you run out of lines) ----- Original Message ----- From: "Shehryar Shaheen" <shehryar.shaheen@ul.ie> Date: Tue, 9 Jul 2002 15:42:56 GMT To: (...) (23 years ago, 9-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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I was hoping, since the thread was already onto how to modify and mount the mouse guts, that it would have been preceeded by a successful attempt to interface the little beast. Since I already know quite a lot about how tedious it is to get data (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Re: HOWTO Demo.c
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|
That is correct each Task started has a higher priority and they all have a higher prority than task_swapper like Prio Task 1 -- Task Swapper 2 -- Motor Driver Task 3 -- Light Sensor Task 4 -- Touch Sensor I changed the all the priorities to 1 but I (...) (23 years ago, 9-Jul-02, to lugnet.robotics.rcx.legos)
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| |
| | RE: Navigation using landmarks (Was: Re: lasers and RCX)
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|
(...) Nothing yet. I have a guy in England that's trying to use pbForth to do I2C comms. As I see it, there are two possiblilities here. One is a bit-bang interface on a sensor input port. Tricky to do with pbForth because it allows the normal 1 (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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|
I see all this nice stuff about trimming mouse bottoms and mounting the device off of the central steering axis and stuff to try and catch rotation, but I haven't spotted the posting about how people are actually getting the x and y values from the (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| |
| | RE: Navigation using landmarks (Was: Re: lasers and RCX)
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|
A Killough platform may have 3 motors, but it operates in a X-Y coordinate plane, not X-Y-Z. The camera is looking for pattern shifts horizontally or vertically, not radially within it's field of vision. As long as the axis of the spin is not (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Re: HOWTO Demo.c
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|
If I understand this correctly (which I doubt) each task you start, has a higher priority, and they all have a higher priority than the 'task_swapper' task. Try setting all the priorities the same. Like to 1. See what that does. (...) (23 years ago, 9-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: HOWTO Demo.c
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|
The code I have taken out of HOWTO.ps (URL) given at the end of the document under the name Demo.c I have fixed some compile time errors (like mismatching process ids in the kill call, the function for getting button state is dbutton() and not (...) (23 years ago, 9-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: HOWTO Demo.c
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|
I'm no expert, but I can try to help you figure it out. Let's start with something simple. What version of LegOS are you using? How are you starting the 'task_swapper' task? What is in the 'motor_driver' task? At one time, when I was working with (...) (23 years ago, 9-Jul-02, to lugnet.robotics.rcx.legos)
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| | HOWTO Demo.c
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|
Need Help, if someone has faced such a problem or knows the fix please do reply. In the legOS Howto their is a demo code demo.c which has some task switching examples I am having trouble with the following piece of code int task_swapper() { (...) (23 years ago, 9-Jul-02, to lugnet.robotics.rcx.legos)
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| |
| | New BBRC Release!
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|
Hello All, We've released a new version of BBRC on battlebricks.com: (URL) software allows someone to control multiple robots from their PC with USB GamePads. New features in this release include: * USB IR Tower Support * Keyboard interface If you (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| |
| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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|
(...) In my system (one RCX and three Scouts), I had one 'master' and three 'slaves'. The rule was that no slave is allowed to talk unless first addressed by the master. I've finally gotten around to writing up this setup and putting it on the web. (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Re: optical mouse chips as vision sensors?
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|
(...) Yes - mathematically, you could still do it with the mouse sensor off to the side of the robot (but not with it dead center between the wheels) - however the sensitivity of the chip to small lateral movements probably wouldn't be enough to (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Re: optical mouse chips as vision sensors?
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(...) The mouse's camera chip tells you how fast the beast is moving forwards/backwards and how fast left/right - as two separate sets of numbers. If you mounted it on a boom (say) six inches ahead of the wheels of a typical two-wheel-plus-caster (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Re: Navigation using landmarks (Was: Re: lasers and RCX)
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(...) Yes - I was thinking of some kind of spring-loaded arm pressing the mouse's underside against the ground. (...) For a Killough platform, you have a fundamental problem. That type of drive has three degrees of freedom (well - it *ought* to have (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| |
| | RE: [ANN] pbForth Version 2.1.5 Release and IR Data Tutorial
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(...) Mario, I'm glad that this has fixed the problem. I hope that you are making good progress with pbForth and that you're enjoying yourself... Cheers, Ralph (23 years ago, 9-Jul-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth)
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| | Re: optical mouse chips as vision sensors?
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Nevermind... I was assuming it would be mounted to the left or right of center (thus the rotation would still show up as forward or reverse). After thinking about it a moment, it occurs to me that by mounting the sensor in front of or behind the (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Re: optical mouse chips as vision sensors?
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(...) Hmmm... I don't see how that would work. How would a single sensor be able to differentiate between rotational movement and straight forward & back movement? I suppose you would be able to guess since you would know what state the robot was in (...) (23 years ago, 9-Jul-02, to lugnet.robotics)
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| | Re: [ANN] pbForth Version 2.1.5 Release and IR Data Tutorial
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Hi Ralph, I don't know if you remember, but I had problems with SAVE-SYSTEM (see msg# 508)... until now! Just to let you know, with pbForth V2.1.5 and (more likely) GUI V2.1.3, it works fine! Thanks Mario (...) (23 years ago, 9-Jul-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx.legos)
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| | Re: Controlling Multiple RCX's from one PC
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Hi! all, I've posted a similar topic before titled "control multiple mindstorms robots using 1 IR tower", so I'd also like to get more info. about this related issue.If someone is generous to open his coding, I'll greatly apprecidate it! Hope (...) (23 years ago, 8-Jul-02, to lugnet.robotics.rcx.java)
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| | some lnp thoughts
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hi all, im sitting here wondering if i should use lnp_addressing_write or lnp_integrity_write. The thing is that im writing a "sliding windows" protocol that might be used by other students here at the local university this autumn (as well as in my (...) (23 years ago, 8-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: optical mouse chips as vision sensors?
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(...) Right - you only get translational motion - not rotation. However, you could use two of these contraptions - on on each side of the robot (or one on the front and the other on the back) and thus derive the rotational speed from the difference (...) (23 years ago, 8-Jul-02, to lugnet.robotics)
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| | LEGO USB tower with NQC on Linux
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I have set up a short web site ((URL) with a description of how to use a LEGO USB tower (RIS 2.0) with Dave Baum's NQC on Linux. It works fine for many popular chipsets (Intel, VIA), yet not all. (...) (23 years ago, 8-Jul-02, to lugnet.robotics)
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| | RE: [ANN] pbForth Version 2.1.5 Release and IR Data Tutorial
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(...) Stupid cut and paste error on my part. It's fixed now... Cheers, Ralph (23 years ago, 8-Jul-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx.legos)
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| | LBrick.com is up and running
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All, I have just finished getting my new site running ((URL) it contains various Lego projects that I have been working on, including... - Lego CAD stuff - LMosaic (my Lego mosaic software) - LRex - a mindstorms biped that I built. Anyway go check (...) (23 years ago, 8-Jul-02, to lugnet.general, lugnet.cad, lugnet.robotics.rcx, lugnet.technic)
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| | Re: [ANN] pbForth Version 2.1.5 Release and IR Data Tutorial
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Hi Ralph, I just tried the latest version and I can't setup the IR port (mine is USB). I get the following message: Error: can't read "portID": no such variable Works fine with the previous version. Thanks Mario (...) (23 years ago, 8-Jul-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx.legos)
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| | [ANN] pbForth Version 2.1.5 Release and IR Data Tutorial
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The new 2.1.5 Version of pbForth has a minor fix that affected programmers using the MARKER and LEAVE words. Thanks to Alexander Cech of Austria for supplying great bug reports! I recommend you get the new 2.1.3 GUI while you're at it because it (...) (23 years ago, 8-Jul-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx.legos)
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| | Re: Controlling Multiple RCX's from one PC
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Hi, Roger and Jonathan!! I'd like to get your code too as I'm also interested to do the same thing as Jonathan. Would you mind also sending your source code about controlling multiple mindstorms using one PC to me? I'd like to have more exchange (...) (23 years ago, 8-Jul-02, to lugnet.robotics.rcx.java)
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| | Re: Controlling Multiple RCX's from one PC
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(...) Source code will help. Thanks. Jonathan D. (23 years ago, 7-Jul-02, to lugnet.robotics.rcx.java)
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| | Re: Controlling Multiple RCX's from one PC
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(...) Hi Jonathan, I send messages from the PC to 3 RCX's with no problem, but I use the Tower object running on my PC, and Serial in the RCX. I don't use Stream objects because they actually only send one byte at a time and not yet very reliable. (...) (23 years ago, 7-Jul-02, to lugnet.robotics.rcx.java)
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| | lego USB IR Tower
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Hi all, I tried out the Ryan Simmons's instructions in order to have my lego USB IR tower working under Linux OS. Everything seems to have been installed properly but when I tried to download legOS firmware with firmdl3 I got the following output: (...) (23 years ago, 7-Jul-02, to lugnet.robotics)
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| | Updated NQCEdit
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Hi Everyone! NQCedit version 1.61 is released. The change is a bugfix to reflect the the changes of Nqc return codes. So if you are running Nqc 2.4. r1 or higher you need to update to version 1.61. The new version can be found at (URL) Eriksson (23 years ago, 7-Jul-02, to lugnet.robotics.rcx.nqc)
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| | Controlling Multiple RCX's from one PC
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I'm working on a project that requires four RCX's to be controlled by one laptop. The program on the laptop is written in Java and the program on the RCXs is written in lejos. I'm using RCXPort to establish a connection between them. The problem I'm (...) (23 years ago, 7-Jul-02, to lugnet.robotics.rcx.java)
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| | Re: Re: Scheduler patch
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I posted some code and a simple explaination of my implementation. Here is the link: (URL) me know if you need clarification or want more information/code (I have the .tar.gz to compile a LegOS kernel that is somewhere between 2.6 and 2.7 and my (...) (23 years ago, 7-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Problems with changing LNP_HOSTADDR
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did it work now ? nanobapt ----- Original Message ----- From: Kai Koehne <Kai.Koehne@student....otsdam.de> To: <lugnet.robotics.rcx...ugnet.com> Sent: Friday, July 05, 2002 1:52 PM Subject: Problems with changing LNP_HOSTADDR Hi, since a few hours, (...) (23 years ago, 6-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Lego IR serial tower!
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Hi! Agnus, I'm really sorry for my previous mail without acknowledge you! Where do you live? in US? How much do you want to sell your IR serial tower? is it in a good condition? Are you using JavaAPI or anything else to control mindstorms robot as (...) (23 years ago, 6-Jul-02, to lugnet.robotics.rcx)
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| | Re: Lego IR serial tower!
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Hi! Thanks for Maggie first! Second, Where do you live? in US? How much do you want to sell your IR serial tower, is it in a good condition. Have you used JavaAPI or anything else to control it, are you working on windows9x enviroment, I 'd like to (...) (23 years ago, 5-Jul-02, to lugnet.robotics.rcx)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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I'm not sure I follow you here. If you're talking about switching inputs using an output (lower the 'speed' of port A to change the relay controlling the input for port 1) well, then Yes, it can be done. However, the problem suggested below comes (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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could not the voltage level deside what relays should be turned on for instance on port 1? Now it might go wrong if the battery turns to be bad. ----- Original Message ----- From: "Steve Hassenplug" <hassenplug@mail.com> To: (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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My major problem was having a light sensor on each RCX that could change at almost exactly the same time as the other. Each RCX would then send a message to the other (for different reasons) The messages have to be sent ASAP, so one second polling (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | RE: Ant pheromones
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The ink appears translucent on a dry-erase board or projector because the surfaces being written on do not absorb the ink. Has anyone tried washable crayons on one of those boards yet? (URL) Message----- From: Mike Reddy [mailto:mreddy@glam.ac.uk] (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Re: Lego IR serial tower!
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look on ebay ? I'd sell you mine (and buy a USB one) but the postage from here to HK might be huge? "Laurence Yip" <95459906@moscow.cityu.edu.hk> wrote in message news:3D259F9E.9B8891....edu.hk... (...) (23 years ago, 5-Jul-02, to lugnet.robotics.rcx)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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This is an interesting aspect of using two RCXs. My only experience is with NQC and the single byte "Message" function, but I have succeeded in making the communication link bi-directional and reliable. I simply create a process in the "master RCX" (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Re: Lego IR serial tower!
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(...) Go to Bricklink (URL) order one. (Everyone listing these ships internationally!) HTH-- Maggie C. (23 years ago, 5-Jul-02, to lugnet.robotics.rcx)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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I've been working on just such a robot. (two RCXs, two rotation sensors, four light sensors, and two touch sensors) Currently, my biggest problem has been communicating between RCXs. I keep getting collisions with my messages. I've had to limit the (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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