 | | 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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