 | | USB2 and IR-Tower problem
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Hi, I was just wondering if anyone here had experienced any problems using the IR-tower on a USB2 port? My university has just upgraded 20 of the pc's used for the Lego, the previous setup worked fine and the tower was attached to just a normal USB (...) (21 years ago, 30-Jul-03, to lugnet.robotics.rcx)
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| | Pneumatic Presure sensor
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Mindsensors Has recently developed a low cost pressure sensor, which measures pressure up to 35 Psi (241 Kg/scm) using Motorola Pressure sensor. If your are interested visit us at www.mindsensors.com/pps.htm www.mindsensors.com Mindsensors Robotics (21 years ago, 30-Jul-03, to lugnet.robotics.rcx)
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| | Re: light sensor question
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(...) A friend of mine suggests that the poor response of the sensor to the LED is because the light from the LED is a single color. Where as the light from the incandescent bulb is white light which apparently contains many if not all of the (...) (21 years ago, 29-Jul-03, to lugnet.robotics.rcx)
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| | Re: LEGO remote controller problem
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(...) Then this is the first time ;) It was indeed the compiler. Using those versions you named in your message, my compiled brickOS.srec file works as well. The lr_startup and lr_shutdown calls don't make any difference, whether they are in or out. (...) (21 years ago, 29-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: LEGO remote controller problem
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(...) Great. (...) I use h8300-hms-gcc-3.1-1.i386.rpm h8300-hms-binutils-2...1.i386.rpm but I never heard from anyone that some gcc version produces a bad brickOS system. Strange, indeed. Regards, Michael (21 years ago, 28-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: LEGO remote controller problem
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Hi Michael, Thank you for sending me your brickOS.srec and .lds files. When I use these ones, the remote control works just fine, with or without the lr_startup and lr_shutdown calls, and with or without a running program. (...) Yes, exactly. I have (...) (21 years ago, 28-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: LEGO remote controller problem
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"Michael Obenland" <obenland@t-online.de> wrote in message news:HIqqFv.1Iwz@lugnet.com... (...) starting (...) I think the call to lr_shutdown() in Christian's program clobbered things such that the remote may no longer be useable unless the power (...) (21 years ago, 28-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: LEGO remote controller problem
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(...) Strange. To get it clear: If you download a fresh made brickOS.srec, you can't use the remote control to start a motor or start a program and if you press the beep-key, the rcx does not beep?? Does your remote work with the original Lego (...) (21 years ago, 28-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: LEGO remote controller problem
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Try removing the calls to lr_startup() & lr_shutdown(). I think these already get called outside of your program. (Sorry, don't have time to test right now). Mark "Christian Hornung" <c-hornung@gmx.de> wrote in message news:HIq2o2.Ht4@lugnet.com... (...) (21 years ago, 28-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: LEGO remote controller problem
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(...) No, it doesn't. The IR indicator flickers, but running motors or starting the program doesn't work. In fact, I didn't know that there is a "default handler" until reading your message. Might the problem be caused by wrong versions of gcc or (...) (21 years ago, 28-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: LEGO remote controller problem
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(...) I compiled your program and it did everything. No problem on my side. If you don't start your program, does the remote control work? Attach a motor at A, B and C and try to run it with the remote. Or try to run your program with the P1 button. (...) (21 years ago, 28-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: LEGO remote controller problem
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Hi Michael, Thank you very much for your answer. Well, there isn't really much source, here we go: #include <conio.h> #include <unistd.h> #include <remote.h> #include <dsensor.h> int my_lr_handler(unsigned int etype, unsigned int key) { cputw(key); (...) (21 years ago, 28-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: LEGO remote controller problem
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Hi Christian, (...) No program, no help. If you send me the sources, I will take a look and try to figure out the problem. In fact, I use the remote control without a problem. Regards, Michael (21 years ago, 27-Jul-03, to lugnet.robotics.rcx.legos)
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| | LEGO remote controller problem
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Hi, I have problems getting the LEGO IR remote controller to work (using brickOS 0.2.6.10). I wrote a small test program that installs a lr handler function which simply displays the received key value on the LCD. But when running this and pressing (...) (21 years ago, 27-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Missing .lx files
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(...) helloworld.o (...) symbolsrec (...) helloworld.o (...) symbolsrec (...) ^^^...^^^ Did you think about investigating this error? Anyway, the version of binutils you are using is broken. Upgrade. (...) helloworld.dc1 (...) character" (...) (21 years ago, 27-Jul-03, to lugnet.robotics.rcx.legos)
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| | Missing .lx files
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I have no .lx files in ../brickos-0.2.6.10/demo ! What I have done: 1. Looked for .lx in "demo": [ville@ville demo]$ ls c++/ c++.cpp helloworld.c helloworld.o linetrack.c Makefile robots.c rover.c rover.o sound.c trailerbot.c [ville@ville demo]$ 2. (...) (21 years ago, 27-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: light sensor question
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"Jona" <jona@24tooth.com> wrote in message news:HIM3z8.t92@lugnet.com... (...) react and it (...) LEDs. (...) the light (...) something (...) sensor itself? I suspect that the spectral composition of the lights are quite different. As to what the (...) (21 years ago, 26-Jul-03, to lugnet.robotics.rcx)
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| | Re: light sensor question
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(...) Here is another question...does incandescent light differ from the light given off by LEDs in terms of how the light sensor sees it? I am experimenting with some LEDs trying to get the light sensor to react and it seems to only see the light (...) (21 years ago, 26-Jul-03, to lugnet.robotics.rcx)
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| | Re: light sensor question
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(...) According to Kekoa Proudfoot's RCX Internals webpage ((URL) if (raw < 187) // bug? this allows percent=101, should be raw < 189 sensor->value = 64 else sensor->value = (3ff - raw) * 19 / 9c Numbers are in hexadecimal (base 16). Jürgen (21 years ago, 24-Jul-03, to lugnet.robotics.rcx)
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| | Re: light sensor question
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(...) The Analog to Digital converter of the h8/300 (the brains of the lego mindstorms) is 10 bits, so it has a range of 0-1023. I'm not sure how it converts that to the 0-100, it may do it by just dividing by 10 and rounding. If you want to see (...) (21 years ago, 24-Jul-03, to lugnet.robotics.rcx)
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