 | | Re: Help!! no serial port in new laptop pc!!!...!!!
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(...) I am not sure if the USB serial ports work for all applications. You might want to be a bit careful. I have some older programs which expect to find real hardware COM ports and they don't recognise the USB variety. JB (23 years ago, 23-Jul-01, to lugnet.robotics.rcx)
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| | Re: Help!! no serial port in new laptop pc!!!...!!!
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Lego Mindstorms told me that USB to Serial converters have not functioned properly. The actual conversation went as, "they (the convertors) don't send correct information to the brick through the IR tower. There are no work arounds." I have been (...) (23 years ago, 23-Jul-01, to lugnet.robotics.rcx)
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| | Re: Help!! no serial port in new laptop pc!!!...!!!
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(...) There are external Serial ports that you can buy and plug into your USB ports. I would think that might be the easiest way to go. Eric Kingsley (23 years ago, 23-Jul-01, to lugnet.robotics.rcx)
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| | Help!! no serial port in new laptop pc!!!...!!!
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I can't hook up my ir tower to my new laptop, and the IR tower for MS 2.0 is not due out for another six weeks!!!!!!! My home computer finally bit the dust, so I bought this laptop Saturday without even looking at the serial port (or lack thereof). (...) (23 years ago, 23-Jul-01, to lugnet.robotics.rcx)
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| | re: remote control
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(...) I dont know if this is what you are looking for, but it appears to do the same thing over the web. I havent taken much of a look at it. (URL) (23 years ago, 23-Jul-01, to lugnet.robotics.rcx.legos)
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| | remote control
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hi all, ive been out of the loop for a while now (summer vacation). so if this has been discused lately forgive my ignorance. im working on a program that lets me control the RCX from a PC using the IR tower. im using legOS 2.4 on redhat 6.1. i am (...) (23 years ago, 23-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Fix for remote patch
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(...) I'll post a diff eventually, but in the meantime, just apply the remote patch from sourceforge, open util/dll-src/rcxtty.c, find the following block, and make the changes to the two lines marked //!!! // Serial settings FillMemory(&dcb, (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Fix for remote patch
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(...) Hi, Its good to know that there is a bug and that there is someone who knows how to fix it. Could you maybe send me some sample code for the rcx and the win32 side ? I dont want anything special just a few lines of code for each side (rcx and (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS, WIN98 & Cygwin 1.3.2
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Nice to be appreciated :-) Running the command 'strip -s *.exe' for each directory containing .exe files reclaims considerable disc space, by removing dubugging information which is embedded in the .exes. P.S. I did briefly experiment with a mingw (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx.legos)
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| | Fix for remote patch
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The remote patch on the sourceforge website is slightly broken on Win32. (The necessary code changes have been made in a Linux only section, but the Win32 bit is untouched. The problen is util/rcxtty.c, which does not set the correct (odd) parity (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx.legos)
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| | LegOS, WIN98 & Cygwin 1.3.2
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Hello, Well after a week of head beating, cursing, downloads and chicken waving AND a great deal of help from Max Bowsher (this last bit was actually the most useful :-) I finally have legOS up and running with the above setup. Had I followed Max's (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Maximum sample rate (turn rate) for rotation sensor
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Dave and Luis, Thank you both for the information. I'm big admirer of the work you've done for the RCX community. (...) I see. (60/0.003)/16 = 1250 And if you were worried about the Sampling Theorem you would divide that in half just to be sure.. (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx)
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| | Re: Mystery Part
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I bow down to you, Bob! Many thanks for solving this mystery. (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx)
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| | Re: Maximum sample rate (turn rate) for rotation sensor
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When using the standard firmware, sensors are sampled every 3 ms. The rotation sensor uses a quadrature encoder with a 1:4 gearing between the axle and the encoder, so there are 16 "ticks" per revolution of the axle. The decoding routine in the (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx)
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| | Re: Maximum sample rate (turn rate) for rotation sensor
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The hardware can actually do (in my testing) up to ~3000 rpm with good accuracy. The problem is with the standard software, which cannot do more than some low number (which may or may not be 500, I don't recall) because of how it samples the HW. (...) (23 years ago, 20-Jul-01, to lugnet.robotics.rcx)
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| | sample code for the remote patch (pc side)
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Hi, is anybody using the remote patch ? I d be glad if anybody could post or send me some sample code for the pc-side where remote messages are send to the RCX. Thanx, Olaf Christ (23 years ago, 20-Jul-01, to lugnet.robotics.rcx.legos)
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| | rotation sensor question
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I installed leJOS, got it up and running, then read on the sourceforge site a support question about the rotation sensor, so I decided to test it out. I wrote a first cut at it and it didn't work, just like the support question suggested: import (...) (23 years ago, 20-Jul-01, to lugnet.robotics.rcx.java)
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| | Maximum sample rate (turn rate) for rotation sensor
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Does anyone know the correct maximum sampling rate for the Lego rotation sensor? This morning I noticed that Dave Baum gives a value of 1250 RPM in his "Definitive Guide" (page 29), but looking at (URL) see a value of 500 RPM. Which is correct? (...) (23 years ago, 20-Jul-01, to lugnet.robotics.rcx)
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| | Re: Mystery Part
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Hehehehe... I have to laugh, Brian. Other people have told you that it is a "Brick Separator", and it is extremely useful. The reason that I am laughing is that when I was just coming out of my dark ages almost exactly two years ago... I was just as (...) (23 years ago, 19-Jul-01, to lugnet.robotics.rcx)
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| | Re: Mystery Part
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Search the Lugnet Guide for "brick separator" (...) (23 years ago, 19-Jul-01, to lugnet.robotics.rcx)
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