 | | OpenSource project hosting and tools
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Hi! I have "stumbled" across a rather new site that offers hosting and a lot of free tools for managing OpenSource projects. Since many projects around here are in that category, I thought I'd let everyone know about it too. The place is at (URL) (...) (26 years ago, 21-Jan-00, to lugnet.robotics.rcx)
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| | Review: Quite C
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Hi all! Since I gave a try to Quite C, and since there may be more people interested, I decided to write my opinion about it. Basically, the package includes the H8 compiler tools, a small set of libraries for accessing the ROM routines, some other (...) (26 years ago, 20-Jan-00, to lugnet.robotics.rcx)
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| | Re: Couple Questions
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(...) Here it is New parts in set 9747 (Mindstorms 1.5), not in set 9719 (Mindstorms 1.0) Count Part # Part Color 4 3794 1x 2 plate, 1 stud Gray New 2 32017 1x5 half beam Gray 4 32065 1x7 half beam Black New 4 32056 1x3x3 liftarm L shape Black New 2 (...) (26 years ago, 19-Jan-00, to lugnet.robotics.rcx)
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| | Re: Couple Questions
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(...) Dean (26 years ago, 19-Jan-00, to lugnet.robotics.rcx)
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| | Couple Questions
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1. Out of curiosity, what pieces are in the 1.0 kit that aren't in 1.5? Why did LEGO remove those 10 pieces? 2. Where could we buy RIS kits in bulk? Say around 40, preferably at discount price (below $200)? 3. Is anyone using them in college level (...) (26 years ago, 19-Jan-00, to lugnet.robotics.rcx)
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| | Re: Rechargable battery questions
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(...) I use six NiMH batteries in my RCX - they work fine - BUT the motors rotate slower than when I use alkaline. I find the battery life OK. Regards, Jacob (26 years ago, 17-Jan-00, to lugnet.robotics.rcx)
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| | Re: More details : "Exploration Mars" and "Ultimate Accessory Set" for the RCX available in march ?
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(...) Exploration Mars looks a bit dull. Can that remote control thingy send messages to the RCX? This would be very cool... -- Mark Rendle rendle2000@hotmail.com (26 years ago, 18-Jan-00, to lugnet.robotics.rcx)
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| | exotic drives
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Looking for a site that contains photgraphs and diagrams of Killough's Platform. Also any information on commercial sensors that that can be used with the RCX. I am going to try using a phototransistor detector ECG3122. Any help appreciated. (26 years ago, 18-Jan-00, to lugnet.robotics.rcx)
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| | Re: Rechargable battery questions
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I use an external battery pack whenever possible/practical. It has 8 (not 6) NiMh cells, providing a total of 9.6 volts. Works fine. Actually, it produces a little more power than ordinary batteries. You need a socket for external power on the RCX (...) (26 years ago, 15-Jan-00, to lugnet.robotics.rcx)
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| | Re: Rechargable battery questions
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(...) I prefer rechargeable alkalines myself (such as Rayovac Renewal). They have the same nominal cell voltage as alkalines, charge quickly, have excellent shelf life, and no memory effect. The downside is that their total charge is somewhat less (...) (26 years ago, 15-Jan-00, to lugnet.robotics.rcx)
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| | Rechargable battery questions
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Greetings, I am yet another lucky person graced with an RIS this holiday season. I already seem doomed to buying more Lego sets for extra parts. I was quickly thwarted trying to build examples in Jonathan Knudsen's book which I assume is based on (...) (26 years ago, 14-Jan-00, to lugnet.robotics.rcx)
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| | More details : "Exploration Mars" and "Ultimate Accessory Set" for the RCX available in march ?
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Hi again all, Thanks to Jesper Kjaer, here is posted more information and detailled pictures for these to sets. Please see : (URL) large pictures posted). About Exploration Mars (#9736) : - Unfortunately, this set doesn't seems to contain a cam... - (...) (26 years ago, 13-Jan-00, to lugnet.robotics.rcx)
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| | "Exploration Mars" and "Ultimate Accessory Set" for the RCX available in march ?
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Hi All, As seen on the 2000 DK catalog, page 58 : (URL) Mars will be available in March... But there is a new set : the "Ultimate Accessory set". Any ideas what it contains ? Seems some light bricks and some sensors, remote control, tachometer ??? (...) (26 years ago, 13-Jan-00, to lugnet.robotics.rcx)
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| | Re: OO programing in RCX
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(...) If I were writing NQC from scratch, I'd agree. However, several years ago I was writing a preprocessor and bison wasn't available to me, so I hand-coded the parser. When NQC was started, I just reused about 90% of this parser. Of coruse, along (...) (26 years ago, 13-Jan-00, to lugnet.robotics.rcx)
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| | Re: OO programing in RCX
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Dave Baum schrieb: (...) Yes, definitely so. Many concepts in parser generators are actually OO (bison result types, for example), but they aren't implemented that way. (...) Prof. Goos rather convincingly advocates generation as the do-all and (...) (26 years ago, 12-Jan-00, to lugnet.robotics.rcx)
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| | Re: OO programing in RCX
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Thank you, David. Your gode is great! I learned a lot from your quick example, though I prefer Java more. I will encapsulate RCX commands in some utility objects and use them in more higher level objects. What I focus now is make a RF/IR adapter to (...) (26 years ago, 12-Jan-00, to lugnet.robotics.rcx)
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| | Re: OO programing in RCX
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(...) OO works very well for things like a parse tree. I can add a new statement and just add its rules for semantic checking and code generation...all within its own class. I think part of the problem is that compiler design is a very heavily (...) (26 years ago, 12-Jan-00, to lugnet.robotics.rcx)
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| | Re: OO programing in RCX
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I should probably mention again that legOS supports C++, and supports it even better if you add void*builtin_new(size_t n){return malloc(n)}; to the appropriate library, as v0.3.0 will. The rest of this is off-topic. Dave Baum schrieb: (...) (...) (26 years ago, 12-Jan-00, to lugnet.robotics.rcx)
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| | Re: OO programing in RCX
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Hi Eric, Yes, I believe you could create a sensor object on the VB side and write your code thinking in terms of a sensor object. Here's one way: =-=-=-= BEGIN SAMPLE CODE =-=-=-= Private m_SensorNumber As Integer Private m_SensorType As Integer (...) (26 years ago, 11-Jan-00, to lugnet.robotics.rcx)
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| | Re: How advanced can RCX programming be?
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(...) but (...) More than that. You can (for instance) have a 'command' thread, which looks at a variable, and decides according to the values on this whether to turn left/right or issue some other response, and does this by changeing other values. (...) (26 years ago, 11-Jan-00, to lugnet.robotics.rcx, lugnet.robotics)
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