 | | Re: OS X Complier problems solved--now struggling with BrickOS
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(...) Periodically I pick up this project again, get frustrated and give up. Then a few more months pass and I pick it up again... I seemed to have more success with the cross compiler this time around. BrickOS gave me a little trouble (strange (...) (20 years ago, 8-Aug-04, to lugnet.robotics.rcx.legos)
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| | Re: Beginners questions
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Thanks James and the others who provided feedback. A couple of the links provided were new and did provide some good info. My team became very proficient with the RIS environment and are doing well learning Robolab as long as they stay on the beaten (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx.robolab, FTX)
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| | Re: Add motor driver to RCX
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(...) The amplifiers definitely won't work. I am bringing a demo 'bot to BrickFest which uses the buggy motors with an RCX. The RCX actually drives regular technic gear motors which drive a cam shaft which operates the buttons on the 9v (6 x AA) (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx)
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| | Re: Multi-RCX Communication
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(...) legOS allows this with a networking protocol. leJOS allows this if you're willing to work with Jini. Both of these require replacing the firmware with either C or Java. You can build your own networking protocol in any language, really. (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx.legos, FTX)
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| | Re: RIS 2.0 upgrade CD? (part 3805)
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(...) 2.0 adds new programming features which are mostly noticeable in the graphical programming environment that LEGO supplies. If you're using a different language, though, then the differences will be handled by the compiler. NQC was updated to (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx, FTX)
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| | Re: Add motor driver to RCX
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(...) 1) I'm not sure these are currently available 2) They only give you independent control of two motors per RCX output (but you can connect motors together) 3) They won't work with the 8366 motors (they were designed before those were available) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx)
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| | Re: Add motor driver to RCX
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(...) John Barnes (HiTechnic) has available a motor amplifier which draws it's power from an external source, and can control 4 motors from 1 RCX ouptut. I haven't tried one, but you might find it helpful: (URL) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx)
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| | Re: Add motor driver to RCX
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(...) What does this mean in electrical novice terms? What is an auto-coupler? Is it possible to modify the reciever/power unit to interface with the RCX? ie maybe add an inferred recuever to interpret commands from the rcx to power the motors (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx)
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| | Re: laser distance sensor
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(...) Who said you had to actually use laser? :) Google for "electronic tape measure" to see what I'm talking about (they really use sonar, with a laser pointer to show where the device is reading from). Home Depot has one for $29. Now, the biggest (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx)
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| | Re: laser distance sensor
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(...) This is an interesting subject and one which generates some interest every so often. The conventional assumption would be that you are talking about LIDAR. The thing is, even if simple plans where available, would you be able to use them to (...) (20 years ago, 4-Aug-04, to lugnet.robotics.rcx)
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| | Multi-RCX Communication
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I see a lot being done with communication between 2 RCX units. I was wondering if anybody had done anything with RCX communication with more than just 2 RCX. (20 years ago, 4-Aug-04, to lugnet.robotics.rcx.legos)
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| | laser distance sensor
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Hi I'd like to build a laser distance sensor for my mindstorms robot. Does anyone know if any plans of circuits of such sensors exists? Andreas (20 years ago, 4-Aug-04, to lugnet.robotics.rcx)
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| | Re: RIS 2.0 upgrade CD? (part 3805)
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(...) What are the differences between 1.0 and 2.0 firmware? I prefer VB to the supplied software anyway, so that makes no difference. Mark (20 years ago, 3-Aug-04, to lugnet.robotics.rcx, FTX)
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| | Re: OS X Complier problems solved--now struggling with BrickOS
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(...) I have reached the same stage as Rich had about a year ago: demos behave exactly as above. I couldn't find any further follow-up of this thread - I would appreciate any hints where should I look for ideas. I use cross-compiler and (...) (20 years ago, 3-Aug-04, to lugnet.robotics.rcx.legos)
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| | Re: RIS 2.0 upgrade CD? (part 3805)
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The Mindstorms SDK 2.5 is still available, which includes the 2.0 firmware. If you don't want the actual 2.0 version of the graphical programming software then this should be all you need. (URL) (20 years ago, 2-Aug-04, to lugnet.robotics.rcx, FTX)
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| | Re: Updated BrickOS Command Reference
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(...) Dave, This is good to see. You may have done this intentionally, but 'sleep' and 'msleep' are both listed twice. Also, under cputs and cputw, it says '(only forst 5 characters)' and should be '...first 5..' I've never been able to get the (...) (20 years ago, 2-Aug-04, to lugnet.robotics.rcx.legos)
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| | Re: Add motor driver to RCX
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(...) Yes, I suggest making an inertia circuit for use with trains, but for cars something else might be better. In RCX float or braked modes the power H-bridge flywheel diodes will brake the motor, but in high power applications, how often is float (...) (20 years ago, 1-Aug-04, to lugnet.robotics.rcx)
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| | Re: Add motor driver to RCX
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(...) Good idea. It will be difficult, though, to determine the differnce between braked and floating motor setting, or am I wrong? Or maybe one should measure the resistance on the RCX terminal, when no voltage is put out. I thought of invading the (...) (20 years ago, 1-Aug-04, to lugnet.robotics.rcx)
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| | Re: RIS 2.0 upgrade CD? (part 3805)
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(...) Noone has it listed on Bricklink right now, but there was a recent Mindstorms survey held on LEGO.com that hints at the possibility that they might be coming out with an RIS 3.0 sometime in the near future. The other alternative is to see if (...) (20 years ago, 31-Jul-04, to lugnet.robotics.rcx)
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| | RIS 2.0 upgrade CD? (part 3805)
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I'd like to upgrade my RIS software to 2.0, but it would appear that Lego no longer sells it. (URL) says "Sorry this item is not available in this country." I called Lego shop today, and they confirmed that it is discontinued. Perhaps someone knows (...) (20 years ago, 31-Jul-04, to lugnet.robotics.rcx)
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