 | | 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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