 | | RCX vs. NXT
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Check out these cool video clips about the RCX vs NXT from Iowa State University's College of Engineering. They are similar to the Mac vs. PC ads. (URL) click on NXT vs. RCX videos on the right hand side of the page. ___...___ Tonya Witherspoon (...) (18 years ago, 2-May-07, to lugnet.robotics)
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| | Re: RCX Motor Diagnostic Test
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(...) So ultimately you want as many matched pairs of motors as possible? I'm not at all sure why you need Robolab for this. 1) Set up all motors with identical loads (identical weights on strings hanging from pulleys, for example). 2) Power all (...) (18 years ago, 2-May-07, to lugnet.robotics)
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| | Re: Ultra Sonic Sensor Readings
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(...) No, but I can think of some ways to generate such data. Part of the problem is that weather or not the sensor sees a return depends on two spread functions: the spread of sound energy from the transmitter, and the spread fo sound energy (...) (18 years ago, 2-May-07, to lugnet.robotics)
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| | Re: Ultra Sonic Sensor Readings
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(...) Getting a return off a cylindrical or worse yet, spherical object is very difficult. The sound reflects off in every direction, pretty uniformly, and so little of it comes back to the sensor. I'm not sure about your idea for using multiple (...) (18 years ago, 2-May-07, to lugnet.robotics)
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| | Do you like functional programming?
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Message text written by "Jordan Bradford" (...) (URL) Lambda the Ultimate>: As you may know, we've been dicussing embedded language deign on the SRS group recently. May I post a copy of your email there? I'm reaaly going to have to read the (...) (18 years ago, 2-May-07, to lugnet.robotics)
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| | Re: RCX Motor Diagnostic Test
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Just a few general remarks on your setup/questions. There's a nice setup shown on Philo's page from when he compared the different LEGO motors, including some data sheets - maybe this is the type of data sheet you'd like to get? link: (URL) using a (...) (18 years ago, 2-May-07, to lugnet.robotics)
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| | RCX Motor Diagnostic Test
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Hello. I've been thinking for a while about the best way to test a large quantity of motors in a short period of time. The reason behind this is I mentor an FLL team, and we recently acquired somewhere in the vicinity of 50-100 motors from a (...) (18 years ago, 2-May-07, to lugnet.robotics, FTX)
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| | Ultra Sonic Sensor Readings
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I've read the previous postings on the ultrasonic (aka "echo locator" among my students). I'm experimenting to see what the cone of energy looks like. Does anyone have experimental data I can compare to? I also need advice of detecting the scatter. (...) (18 years ago, 2-May-07, to lugnet.robotics)
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| | Re: Control Lab - serial/USB
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(...) That's great news! It's good to have confirmation about the USB-Serial converter. Also, virually the only reason why I still use Windows occasionally is because of some LEGO apps that won't run on anything else. Have you made a gui, or in what (...) (18 years ago, 1-May-07, to lugnet.robotics)
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| | Re: Control Lab - serial/USB
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(...) I'd be interested in seeing it, if you don't mind. I also was going to use the Control Lab to control big train layouts, now that I actually have more than one LEGO train to control. :) (18 years ago, 1-May-07, to lugnet.robotics, FTX)
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| | Re: Control Lab - serial/USB
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(...) Yes, you can compile C# programs on the command line using the .NET Framework SDK. You can also install Visual C# 2005 Express Edition and use Microsoft's Visual Studio IDE. The API I'm designing won't be quite like NQC, though. NQC is (...) (18 years ago, 1-May-07, to lugnet.robotics, FTX)
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| | Re: Control Lab - serial/USB
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(...) I'm in the same boat as Doug, not having a control lab, but using several USB-> serial converters. I have had mixed experiences. Some converters have worked on everything I've tried (like my trusty Belkin F5U103-- no longer in production) (...) (18 years ago, 1-May-07, to lugnet.robotics)
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| | Re: Control Lab - serial/USB
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(...) I'm currently finishing an API in Java for the Control Lab (well, the missing part of code is for the temperature sensor...) My first project using it was the automatic control of a train yard during our last train show in Paris. (URL) For (...) (18 years ago, 1-May-07, to lugnet.robotics, FTX)
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| | Re: Control Lab - serial/USB
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(...) I know lejos exists... but I'm still getting to grips with NQC (if you know any good advanced tutorials except for the one Dave Boum wrote I'd be really interested). Would what you are developing be in any way like using NQC (possibly from the (...) (18 years ago, 1-May-07, to lugnet.robotics)
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| | Do you like functional programming?
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If so, this might be of interest to you. I saw it posted on (URL) Lambda the Ultimate>: (URL) The first article is entitled "A Recipe for controlling Lego using Lava." If you're not familiar with the (URL) Lava Hardware Description Language>, it's a (...) (18 years ago, 1-May-07, to lugnet.robotics, FTX)
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| | Re: Control Lab - serial/USB
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(...) I've been working on a .NET-based class (in C#) to communicate with the Control Lab. It will eventually be a miniature API providing methods to poll sensors and change output port values. It will be kind of like how leJOS does things, except (...) (18 years ago, 1-May-07, to lugnet.robotics)
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| | Re: Control Lab - serial/USB
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I have Robolab 2.5.4 so I guess I'll be using that. I still need to find out what other apps there are (Windows and Linux) that I might use as an alternative. linmix (...) (18 years ago, 1-May-07, to lugnet.robotics)
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| | Re: Control Lab - serial/USB
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(...) I do not have a Control Lab but I do have two USB->Serial converters and have tested them on a variety of devices at work and have not had any issues yet. These come with device drivers that create serial ports on your machine. As long as the (...) (18 years ago, 1-May-07, to lugnet.robotics)
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| | Re: NXTOffRoad+Extensionboard
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(...) Hi, it was my 5 years old daughter, who is escaping from running NXT :-D. The older one (and me) is playing the solo guitar at the background :-) It makes us happy that you enjoy the simple video of family-home-fun with Lego. Yes, it it hard (...) (18 years ago, 30-Apr-07, to lugnet.robotics)
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| | Re: Robo Quad - Stage Six
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(...) TY, If you understand the principles, it is a matter of just having the Lego, and the drive to build it. IMHO. Hopefuly learn a few things along the way. (...) I can only test it 12 inches in either direction at a time, uh confines of my desk. (...) (18 years ago, 30-Apr-07, to lugnet.technic, lugnet.robotics, FTX)
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