 | | ***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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