 | | Re: Help!! no serial port in new laptop pc!!!...!!!
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Lego Mindstorms told me that USB to Serial converters have not functioned properly. The actual conversation went as, "they (the convertors) don't send correct information to the brick through the IR tower. There are no work arounds." I have been (...) (25 years ago, 23-Jul-01, to lugnet.robotics.rcx)
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| | Re: Help!! no serial port in new laptop pc!!!...!!!
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(...) There are external Serial ports that you can buy and plug into your USB ports. I would think that might be the easiest way to go. Eric Kingsley (25 years ago, 23-Jul-01, to lugnet.robotics.rcx)
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| | Help!! no serial port in new laptop pc!!!...!!!
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I can't hook up my ir tower to my new laptop, and the IR tower for MS 2.0 is not due out for another six weeks!!!!!!! My home computer finally bit the dust, so I bought this laptop Saturday without even looking at the serial port (or lack thereof). (...) (25 years ago, 23-Jul-01, to lugnet.robotics.rcx)
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| | Re: Maximum sample rate (turn rate) for rotation sensor
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Dave and Luis, Thank you both for the information. I'm big admirer of the work you've done for the RCX community. (...) I see. (60/0.003)/16 = 1250 And if you were worried about the Sampling Theorem you would divide that in half just to be sure.. (...) (25 years ago, 21-Jul-01, to lugnet.robotics.rcx)
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| | Re: Mystery Part
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I bow down to you, Bob! Many thanks for solving this mystery. (...) (25 years ago, 21-Jul-01, to lugnet.robotics.rcx)
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| | Re: Maximum sample rate (turn rate) for rotation sensor
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When using the standard firmware, sensors are sampled every 3 ms. The rotation sensor uses a quadrature encoder with a 1:4 gearing between the axle and the encoder, so there are 16 "ticks" per revolution of the axle. The decoding routine in the (...) (25 years ago, 21-Jul-01, to lugnet.robotics.rcx)
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| | Re: Maximum sample rate (turn rate) for rotation sensor
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The hardware can actually do (in my testing) up to ~3000 rpm with good accuracy. The problem is with the standard software, which cannot do more than some low number (which may or may not be 500, I don't recall) because of how it samples the HW. (...) (25 years ago, 20-Jul-01, to lugnet.robotics.rcx)
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| | Maximum sample rate (turn rate) for rotation sensor
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Does anyone know the correct maximum sampling rate for the Lego rotation sensor? This morning I noticed that Dave Baum gives a value of 1250 RPM in his "Definitive Guide" (page 29), but looking at (URL) see a value of 500 RPM. Which is correct? (...) (25 years ago, 20-Jul-01, to lugnet.robotics.rcx)
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| | Re: Mystery Part
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Hehehehe... I have to laugh, Brian. Other people have told you that it is a "Brick Separator", and it is extremely useful. The reason that I am laughing is that when I was just coming out of my dark ages almost exactly two years ago... I was just as (...) (25 years ago, 19-Jul-01, to lugnet.robotics.rcx)
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| | Re: Mystery Part
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Search the Lugnet Guide for "brick separator" (...) (25 years ago, 19-Jul-01, to lugnet.robotics.rcx)
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| | Re: Mystery Part
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It is a handy tool for separating plates and bricks. -- Bob Fay rfay@we.mediaone.net (URL) Bagnall" <bbagnall@escape.ca> wrote in message news:GGqCwD.4A7@lugnet.com... (...) year (...) (25 years ago, 19-Jul-01, to lugnet.robotics.rcx)
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| | Mystery Part
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The part I am having problems with is the dark-grey "foot pedal" looking part. Does anyone know what this is called or what it's used for? This has been the single biggest mystery to me since I bought the RIS kit over a year ago. (25 years ago, 19-Jul-01, to lugnet.robotics.rcx)
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| | Re: working c++ program?
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plz. I just need to how how everything is included and linked. I did declare it as a member variable. Thanks for your help! Jason P.S. You can just email it to me if you like. Thnx (...) (25 years ago, 18-Jul-01, to lugnet.robotics.rcx)
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| | Re: working c++ program?
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(...) Hi Jason, did you declare it as a control member variable ? 1. Project\Add To Project\Components and Controls... 2. Registered ActiveX Controls 3. Choose "Spirit Control" then "Insert" 4. Put the Spirit Control (the Lego Sign) in your (...) (25 years ago, 18-Jul-01, to lugnet.robotics.rcx)
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| | Re: newby question, anyway to say not greater than?
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How 'bout less than or equal ? (25 years ago, 18-Jul-01, to lugnet.robotics.rcx)
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| | Drive a motor using the sensor port - safe?
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I accidentaly discovered that when the sensor port on the RCX is set to light sensor type, a motor connected to it will run. The motor can only run in one direction with a low torque, but it can be useful when you just need the extra motion and (...) (25 years ago, 18-Jul-01, to lugnet.robotics.rcx)
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| | working c++ program?
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Does anyone have a working c++ rcx program? I'm having trouble getting microsoft visual c++ 6.0 to integrate spirit.ocx successfully. Maybe if I had a working program to look at, I could figure it out. I got spirit "installed", however, I can't use (...) (25 years ago, 17-Jul-01, to lugnet.robotics.rcx)
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| | newby question, anyway to say not greater than?
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Hello everyone, I am in the midst of my first programming attempt in years, attempting to discriminate 3 levels of light with a light sensor, and have it do different things depending on the maximum light intensity. This works fine for the upper and (...) (25 years ago, 17-Jul-01, to lugnet.robotics.rcx)
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| | Lie Detector with RCX
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Fred Wolflink from Massachusetts College of Art made a nice lie detector. Scroll down to the bottom of the page and click on "Create your Lie Detector" (URL) (25 years ago, 17-Jul-01, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx, lugnet.robotics)
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| | Re: RIS 1.5 at TRU in Canada
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(...) I saw 3 copies left in my local (St. Catharines) Toys R US..."regular priced" at 199.99 ....I thought they would reduce the price before the RCX 2.0 were to come out.... I guess I have no excuses not to pick up a set....actually with exchange (...) (25 years ago, 17-Jul-01, to lugnet.loc.ca.on, lugnet.org.ca.rtltoronto, lugnet.robotics.rcx, lugnet.robotics)
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