 | | Re: COLOR light sensor
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(...) VERY interesting! I was just talking with someone at the last SMART meeting how cool it would be if there was a colour light sensor. I can't wait to read more about it! Keep us informed how you do with it. I'm not exactly sure what a reading (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx)
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| | Re: floating point operation
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(...) I suspect that when you look at the assembler code produced by the compiler you will find in the first instance it was able to optimize the FP multiply out of the inner loop since it didn't depend on the loop induction variable. Ie, it simply (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: floating point operation
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(...) I should clarify that this is true for the first version only. For some reason, the compiler does not optimize the second version in the same way. Anyways, what I see in the disassembly for the first version is a loop to 100 inside a loop to (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: floating point operation
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(...) Compiler optimization? At least, a disassembly of similar code showed me that that seemed to be the case. The compiler can see that t is not used. Try returning t, or copying t to a global before you return from main. That will make things (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: COLOR light sensor
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(...) Kick-ass idea! :) Plain or peanut? -Kekoa (23 years ago, 28-Nov-01, to lugnet.robotics.rcx)
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| | floating point operation
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I did some experiments with floating point operations and I was surprised when I tried this: int main(){ long t1; int i,j; float t; t1 = sys_time; for(j=0; j<1000; j++){ t=0.06; for(i=0; i<100; i++){ t=1.7*t; } } lcd_int((sys_time - t1)/1000); (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx.legos)
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| | where to buy individual parts?
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Hi, My school currently has a robotics course that uses the RIS kits and LegOS. We're trying to expand the size of our class, and consequently need additional parts (and replacements for missing/broken parts) I've looked around on the lego homepage (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: COLOR light sensor
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(...) I can own up to having done some work in this area. It isn't "available" yet because I haven't found an easily producible way to mount the LEDs yet. The device works as follows; The heart of the thing is a small PIC microcontroller which (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx)
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| | COLOR light sensor
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A couple of day’s ago I heard about an COLOR light sensor for the RCX. I have searched on the Internet for this, but the only thing I could find was a NQC program for this sensor. Does anyone know more about this, has the schematics of this sensor, (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx)
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| | Bug report and enhancement request for BricxCC
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Hi John, First of all, I want to tell you that I like to program in BricxCC. However, there are some minor things I would like to mention to you. There are four bugs (I think): When I click on the maximize icon the window got maximazed. But when I (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx.nqc)
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| | Re: Problems with the USB tower
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Hi!Hary,I am sorry I replied to your mail from outside the lugnet list.Please reply to the list and I will make sure that I don't mess up. Regards, Rajendra (...) (23 years ago, 27-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Problems with the USB tower
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Where'd you the get the patch for LegOS that can use the USB tower? - Hary (...) (23 years ago, 24-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Extra 9V Motor
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(...) (23 years ago, 26-Nov-01, to lugnet.robotics.rcx)
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| | Extra 9V Motor
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Hi all, Where can I buy more LEGO 9V Motors? I cannot get it on legomindstorms.com and shop at home (LEGO). Yiu Thanks (23 years ago, 25-Nov-01, to lugnet.robotics.rcx)
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| | Re: Using USB Tower with Alternative Firmware
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(...) Here's where I'm at for NQC... Windows - The Lego driver does a pretty good job of making the tower look like a comm port but with a different name (\\.\LEGOTOWER1), although I believe calls to set the baud rate/parity/etc fail. MacOS 9 - no (...) (23 years ago, 22-Nov-01, to lugnet.robotics.rcx)
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| | Re: Using USB Tower with Alternative Firmware
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(...) Seems like it behaves like a file, no special magic needed once you have the device driver installed (under Windows). AFAIR from what I saw in the Lejos code the differences to the old tower are slight, that there's no more need to wake it up (...) (23 years ago, 22-Nov-01, to lugnet.robotics.rcx)
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| | Using USB Tower with Alternative Firmware
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Hi All, I have some questions about alternative firmware support for USB towers. As the author of pbForth, I'm getting lots of requests to integrate USB tower support into the package. The old tower plugged into a seraial port, and for some MAc (...) (23 years ago, 22-Nov-01, to lugnet.robotics.rcx)
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| | Sound driver and implementation
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I found the sound driver and implementation in old version (0.2.0 below) is different from current version, I am not famlair about music and sound generating concept, does anyone give me some explanation? Thanks a lot! Zhengrong (23 years ago, 20-Nov-01, to lugnet.robotics.rcx.legos)
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| | Now available: BricxCC 3.3.2.9
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I've just uploaded a minor revision to BricxCC. Version 3.3.2.9 now correctly handles a few NQC compilation errors that it was not previously handling correctly. Specifically, there are a few (4) NQC errors that do not report line numbers (too many (...) (23 years ago, 19-Nov-01, to lugnet.robotics.rcx.nqc)
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| | Re: Problems with the USB tower
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(...) Yes. (...) Currently there isn't, see my posting (URL) Jürgen Stuber <stuber@loria.fr> (URL) (23 years ago, 18-Nov-01, to lugnet.robotics.rcx.legos)
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