 | | Re: walker that turns?
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(...) it? ¡hola Horacio! Months ago I built a robot that used just two legs to walk, moving its own center of gravity from one leg to the other. It was actually unable to turn, but someone sugested that I could provide it with turnable legs for (...) (26 years ago, 2-Nov-99, to lugnet.robotics)
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| | Re: Time available during 1 kHz system interrupt?
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(...) Mostly PWM will get jerkier. If you sit to long in there and the motors happen to be 'on' then you can go faster than you would like :-) You also "lose time" in the sense that msleep is no longer accurate so there are issues with tasks that (...) (26 years ago, 2-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Time available during 1 kHz system interrupt?
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The controls are spread across a couple of files, mainly in libhb.c we get /* pulse width modulation control: if off, all motors run at full speed if on, speed bytes are used to determine motor speed */ void system_pwm_on() {bit_set(0x39, (...) (26 years ago, 2-Nov-99, to lugnet.robotics.handyboard)
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| | Re: legOS-0.2.1
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Hi Jeffrey, that's an OS issue - your host system should define O_ASYNC. Some older systems define FASYNC instead, try that one. You can work around this more elegantly, too: #ifndef O_ASYNC #define O_ASYNC FASYNC #endif And hope for the best. (...) (26 years ago, 2-Nov-99, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx)
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| | Re: Categorizing uploaded robot images on legomindstorms.com
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You may wish to consider a combination of a main hierarchical taxonomy (mobile->wheels->...) with tag keys for attributes (contains homebrew sensor). User may search both ways. Eric (26 years ago, 2-Nov-99, to lugnet.robotics)
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| | FW: belated question from Mindfest
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-----Original Message----- From: munafo@gcctech.com [mailto:munafo@gcctech.com] Sent: Monday, November 01, 1999 5:24 PM To: rhempel@bmts.com; Robert Munafo Subject: belated question from Mindfest Ralph, It was good talking to you at Mindfest. As you (...) (26 years ago, 2-Nov-99, to lugnet.robotics.rcx.pbforth)
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| | FW: belated question from Mindfest
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-----Original Message----- From: Ralph Hempel [mailto:rhempel@bmts.com] Sent: Monday, November 01, 1999 7:58 PM To: munafo@gcctech.com Subject: RE: belated question from Mindfest (...) Nice to meet you too. I'm not sure if anyone really appreciates (...) (26 years ago, 2-Nov-99, to lugnet.robotics.rcx.pbforth)
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| | RE: variables, etc.
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(...) Will do shortly... (...) I'm not sure I want to be known as the guy that hates variables. They DO have their place, as data structures or to hold information that is infrequently accessed or is inconvenient to manage on the stack. The thing (...) (26 years ago, 2-Nov-99, to lugnet.robotics.rcx.pbforth)
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| | Re: Official LEGO site has MindFest pics
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(...) Hey, at least you designed something and got it on the page. My Mindfest embarrassment runs deeper... (...) And it seems he did. It's almost tempting to ask that he spell out what NELUG is and/or link it to the website, but that would seem to (...) (26 years ago, 2-Nov-99, to lugnet.robotics.events)
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| | Re: Official LEGO site has MindFest pics
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(...) I wouldn't be embarased none of the non-robotics stuff made it. Which is of no supprise seeing that was the main theme of the event. I think most of the stuff other than Henry's call at the NELUG table would be considered Modeling or Art and (...) (26 years ago, 2-Nov-99, to lugnet.robotics.events)
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| | IR
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Hi All. Is there a way to set the IR transmitter to something like 'long range mode'? I would like to have a more powerful beam for proximity detection. I've tried lnp_logical_range(1), doesn't seem to make a difference. The problem is that I don't (...) (26 years ago, 2-Nov-99, to lugnet.robotics.rcx.legos)
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| | Using Vector 2X and Polaroid sonar w/ exp board
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Hi, I am planning to use a Vector 2X compass with the Polaroid Sonar and expansion board but not sure about the SPI connection part. Before investing into the compass, I would appreciated if somebody could tell me if they are successful in using (...) (26 years ago, 2-Nov-99, to lugnet.robotics.handyboard)
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| | [OT] Unabashed plug
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This is an anabashed plug for Solutions Cubed ... I'm in NO way affiliated with them ... and I'm NOT a volume purchaser. I have one of their MemKey keypad encoder boards. It failed. I called them and was told to send it to them ... no return (...) (26 years ago, 2-Nov-99, to lugnet.robotics.handyboard)
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| | building a remote debugger for win32 -- need help
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Hi everybody, As a part of a project at my university we're building a crossdevelopment environment for the Windows environment. As a part of this programming environment we want to build a remote debugger. So, we will have to incorporate a (...) (26 years ago, 2-Nov-99, to lugnet.robotics.handyboard)
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| | [Announce] Brainstorm V1.1 released.
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BrainStorm version 1.1 released. Brainstorm is a version of the LOGO programming language with added commands and functionality to control Lego MindStorms spirit.ocx. The new commands can be used to write Programs for download as well as giving (...) (26 years ago, 2-Nov-99, to lugnet.robotics.logo)
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| | Re: Official LEGO site has MindFest pics
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(...) Ironically, they originally did spell out "The New England LEGO Users' Group" under Henry's picture. It seems that when they added "NELUG" to my captions, they also acronym-ized his caption. (They're almost _too_ responsive!) My theory as to (...) (26 years ago, 2-Nov-99, to lugnet.robotics.events)
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| | Re: Scout secrets revealed
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Sorry Eric -- the frames just take up too way much space in the window (over 50 percent!). Most of the time when I visit such a heavily framed site, I have to use the "Open frame in New Window" command just to read the content. I posted the URL to (...) (26 years ago, 2-Nov-99, to lugnet.robotics)
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| | Re: Official LEGO site has MindFest pics
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(...) Actually, a more likely reason is that we are looking at the LEGO Mindstorms web site. No RCX --> no "Mindstorms" --> no picture. We really should collaborate on how to mechanize one of those AT-AT's! (26 years ago, 2-Nov-99, to lugnet.robotics.events)
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| | Re: Categorizing uploaded robot images on legomindstorms.com
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Letting them search both ways might be too much work for the Russell and/or the folks putting this system together. A heirarchical taxonomy is all right as long as it allows for each "node" to have more than one child and more than one parent. (...) (26 years ago, 2-Nov-99, to lugnet.robotics)
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| | Re: Official LEGO site has MindFest pics
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(...) Some friends and I have been discussing that on and off, to the level of watching the movie to make sketches of leg motion. We have sort of assumed that you'd have to pack the storage in the center with 2 or 3 RCX's. You'd also have to lose (...) (26 years ago, 2-Nov-99, to lugnet.robotics.events)
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