 | | NXT + BlueTooth + PC (was: Java Baad)
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Ditto to pretty much everything on this thread. My present robot has a PC running Linux talking to an RCX over IR, using my own (not XML!!) message protocol. For a look at how this can play out, check out what these guys did with some NSA money: (...) (20 years ago, 24-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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-- pisymbol <pisymbol@gmail.com> wrote: [SNIP} (...) If I'm chosen as the one of the 100, this is what I will work on, using and abusing the BT communications on the NXT. Right now, I'm working at using the RCX Ir-I2C mindsensors.com interface for (...) (20 years ago, 24-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) The language is "MindScript". There's some tutorials here: (URL) (20 years ago, 24-Jan-06, to lugnet.robotics)
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| | Should I lubricate my Lego motor?
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My robot is having a hard time getting around and I think that it's because the motors seem to be sticking. Even on my linoleum floor, my little tank robot often gets stuck and goes in slow circles, because one motor gets stuck. Once I nudge it or (...) (20 years ago, 24-Jan-06, to lugnet.robotics.rcx.legos)
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| | Re: Why java is (not) bad for Mindstorms
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(...) Let's not forget about HAL! (20 years ago, 24-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) Thanks Steve! I would definitely like to explore this idea if I'm part of the MDP (unless the NXT already has a high-level protocol!). -aps (20 years ago, 24-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) This doesn't sound crazy to me. And, I'd be willing to bet the people at LEGO don't think it's crazy, either. Steve (20 years ago, 24-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) It does. The RIS GUI saves the programs in *.lsc files (in the "Vault"). These programs appear to be a C language variant. The LabView environment does the same thing. TFP (20 years ago, 24-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) Well my understaing of JIT compiler is that its a part of the actual runtime so I'm not sure how it would be on the PC?! Though you got me thinking (dangerous), perhaps the best way to program the NXT is not to run a binary but instead use an (...) (20 years ago, 24-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) I don't think you're asking too much. Just be warned that self aware robots tend to be depressed. Just look at Marvin from Hitchhiker's. Oh, and C3PO seems to be bipolar. :-P - Alex (20 years ago, 24-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) Mammals don't even come like that. LOL! (...) Kev (20 years ago, 23-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) I'd like my NXT to be self aware, straight out of the box. Am I asking too much? :-) Steve (20 years ago, 23-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) I don't know the format of the output of the graphical programming environment. The concept of a JIT compiler seems good to me. Dunno where it should exist. on the NXT or on the PC? (...) Could be. (...) I sure hope so. (...) Kev (20 years ago, 23-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) Because different people want mutually contradictory things. For my own usage, there are times when I want a very procedural language where I can easily specify the precise sequence that things happen in at incredibly fine level of detail (...) (20 years ago, 23-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) What is the output of the NXT graphical programming environment? I mean the NXT could already have a JIT type execution environment already whereby the graphical IDE generates pseudo-code ("bytecode") and the firmware on the NXT does the (...) (20 years ago, 23-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) I agree. I think the barriers are artificial, and really only benefit those who might prefer their alchemy to be abstruse and difficult to master. It allows them to be high priests of the inpenetrable incantation. Mathematics didn't flourish (...) (20 years ago, 23-Jan-06, to lugnet.robotics)
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| | Re: LEGO Day at the Owatonna Arts Center
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The Minnesota state FLL tournament is at Benilde St. Margaret (a school in Hopkins) on January 28 from 8 am to 5 pm. For details and directions go to www.hightechkids.org. I'll be a design judge. Visitors are welcome, so stop by the technical (...) (20 years ago, 23-Jan-06, to lugnet.loc.us.mn, lugnet.robotics, lugnet.technic)
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| | Re: Non-purist LEGO Robots: was [The LAST post (hopefully) about Java and the NXT]
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I was thinking maybe just a new board that fits in the original brick. Another processor, more memory, a complex connector out the end to connect up non-lego sensors, cameras and other devices needing digital communications interfaces. C. Fred (...) (20 years ago, 23-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) One possibility would be to have a compiler that compiles NXT graphical code into ARM code, or NXT executable into ARM code (kind of like a Java just in time compiler). This would bypass the interpreter of the firmware and potentially give you (...) (20 years ago, 23-Jan-06, to lugnet.robotics)
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| | Re: Why java is (not) bad for Mindstorms
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(...) Text vs. graphical is one aspect of a language being all things to all people. Another is interpreted vs. compiled code. Steve's Hassenplug required compiled code to get the speed required for balance. Nothing stops there from being both. (...) (20 years ago, 23-Jan-06, to lugnet.robotics)
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