 | | Re: legOS limitation
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Hi Colin, (...) The one task per priority level requirement is gone at least since March. There is a priority chain mechanism now, with round-robin scheduling within a priority level. (...) Yes, a task won't die while higher-priority tasks are (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.legos)
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| | Firmware behaviour
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Hi all, does the ON/OFF Button work while a program is running with the standard firmware? Or do you need to press RUN to stop it first? Markus. (26 years ago, 27-Oct-99, to lugnet.robotics.rcx)
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| | Re: RCX with AC power - Still Available
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(...) These things are commercially avaible already, my uncle has one. If I remember correctly, it was made by Husqvarna. The major drawback is that the solar power driven one is +/- Hfl 8000 ($4000). One with batteries is half as expensive. Really (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: Double echo
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(...) Standalone loader would be nice. (...) Well, the most important, of course, is the stack bug. BTW, what about multitasker? How many cells would you recommend to allocate? Should be it checked by HAT word or not? (...) Sure, I would like to (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.pbforth)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) I'd love to see something based on this. (It's something I'm working on too, actually.) My sense is that small imprecisions will quickly add up to large errors, making this method difficult. (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Not necessarily the handyboard....
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I have an old 486 laptop and a few motors and sensors lying around...Does anyone know of a DSP board or some other device I could use to interface the motors and sensors to the laptop for real- time data aquistion? (I already have my handyboard (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
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(...) In your mind, which issues brought up by/at MindFest are the most important ones to carry on (that aren't covered already yet by online groups), or which would you most like to see covered? (...) Interesting. I wonder if that answer assumes (...) (26 years ago, 27-Oct-99, to lugnet.robotics.events)
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| | Re: Firmware behaviour
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(...) The on/off button is always operational. It makes a great NO! STOP THAT! button when your robot is tearing itself apart accidentally. :) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx)
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| | Re: GP2D05
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I am using the GP2D02 which is also identical to the GP2D05 except that on the GP2D05 you can manually set the threshole using the built-in trimpot. I am using Barry Brouillet driver for interfacing to the Handyboard/w expansion board and it works (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| | Re: GP2D05 (correction)
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I apologize for the previous mail on the GP2D05 subject. The information I gave was base on my careless assumption (duhh) which was also wrong. Once again, I am sorry for any inconvenience. =o( Rob (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| | Re: !!! Laser attachments for Mindstorms !!!
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So what are you guys thinking about then (sensor wise?) If I understand you correctly, then you are trying to mount two rotation sensors and one light sensor? Just curious- I'm working on a similar problem, but am choosing to go with floor marking (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: Not necessarily the handyboard....
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(...) <blatant self-promotion> I work for ComputerBoards, Inc., a company that makes high quality yet inexpensive expansion cards for Intel platforms. We have just about anything you could need for analog or digital I/O, serial communications, GPIB, (...) (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| | (canceled)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) Yes, plus two touch sensors to implement bumpers. Otherwise, you won't know when you hit an obstacle. That leads to sensor multiplexing, as described in the NQC tutorial. I ended up doing some filtering on the raw multiplexed input, to (...) (26 years ago, 28-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) Why, if you're keeping track of motion? I mean, if you suddenly stop, it's probably safe to assume you've hit something. :) (26 years ago, 28-Oct-99, to lugnet.robotics)
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| | Re: 64K UPGRADE
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Yes, you can upgrade your HB to 64K and then use Interactive C on it. After the reset HB operates in a 32KB mode that is compatible with the original HB memory mapping. Your C code, however, shouldn't use the PD5/SS pin on the HC11 as it s used to (...) (26 years ago, 28-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
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Todd, your point about handyboard is well taken. And there are many real-world reasons why successful groups grow to cover many allied topics. The WEB is about "not having to know where everything is, to use it". Lots of people connect to Websites, (...) (26 years ago, 28-Oct-99, to lugnet.robotics.events)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) In fact the rotation sensors work much better for this, because they will easily tell you when you stopped in any direction. It is much more complex to build a bumper which surrounds the RCX and can detect hits from most any direction. I did (...) (26 years ago, 28-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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Actual multiplexing? Or just a touch and a light on each input (since that is all I can find in the NQC tutorial?) Again, curious (though a little frustrated since it will cost ~$40 to copy the floor pattern I need.) Luis (...) ###...### Profanity (...) (26 years ago, 28-Oct-99, to lugnet.robotics)
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| | RE: Double echo
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(...) Yes, it should. The issue is that you never really know if the stack will blast through the 256 byte boundary, unless HAT checks it. You generally allocate small stacks, so HAT could be modified to FORCE the data stack to start at the boundary (...) (26 years ago, 28-Oct-99, to lugnet.robotics.rcx.pbforth)
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