 | | Re: differences between 9719 and 9747?
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(...) Here are the differences in parts. They are alse some differences in manual and software, but I don't know them. 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 (...) (25 years ago, 30-Dec-99, to lugnet.robotics.rcx)
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| | Installation of pbForth 1.11 Problems
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Last night I tried to install pbForth 1.11 with nqc (2.02). It beeped like it was installed and "4th" was displayed on the screen, but I could not turn it off. I had to take out the batteries to get it to turn off, but by then, the pbForth was gone. (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.pbforth)
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| | Re: touch sensors - two at a time ?
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(...) The problem you are having, is that the processor is much faster than a human being... The code will allways tend to see one sensor befor the other, because of the processors speed, unless you can hit them together to within a very few mSec. (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.legos)
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| | RCX "locking up" when trying to use dll
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Has anyone experienced the RCX "locking up" when trying to use dll? When I try to download a .lx file with dll, the brick freezes. It won't respond to any buttons and I have to take the batteries out and re-load the firmware. Any ideas why this is (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.legos)
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| | Re: Can't open serial port in Linux
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Check the permissions on /dev/ttyS1. I think the default is for it to be locked down to superuser only. If this is the case, then running nqc from a normal user account would cause the error you got. You'll need read/write rights to /dev/ttyS1 in (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.nqc)
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| | Problems with legOS-0.2.2 on Windows 95
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Hi, I followed the instructions on (URL) install legOS-0.2.2 on my Windows 95 PC. I downloaded all the files, installed the packages, and modified the makefiles. And was finally ready to compile, the results of the compilation is shown below... (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.legos)
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| | Re: touch sensors - two at a time ?
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(...) It's not a race condition, strictly speaking. It's more of a data sampling error. If you run that it a tight loop you will test the sensors hundreds or thousands of times a second. In order to see a simultaneous press you'd have to hit them at (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.legos)
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| | Re: touch sensors - two at a time ?
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(...) If I understand your problem correctly, it has nothing to do with legOS specifically. Therefore, I will answer, even though I have no experience with legOS. The problem is, there is a very small amount of time where, while you're pushing on (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.legos)
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| | touch sensors - two at a time ?
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I'm trying to build a sensor apparatus at the front of my bot, and it works, mostly. It's made up as a pair of touch sensors. The idea being that if one is activated, it turns around slightly, to avoid the sensor, but if both are activated, we (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.legos)
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| | Can't open serial port in Linux
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I'm having some troubles downloading to the RCX in Linux, I have RXC_PORT set to /dev/ttyS1, which is the correct serial port, and then I run nqc and get: [brian@magic bin]$ ./nqc -d ../test.nqc Downloading Program:error Could not open serial port (...) (25 years ago, 29-Dec-99, to lugnet.robotics.rcx.nqc)
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| | firmware upload with NQC...
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first off, i'm using NQC with Linux. when i try to upload the firmware image from the MindStorms CD-ROM, i get the following: [kjs@localhost nqc_lnx_2_0_2]# ./nqc -firmware ../FIRM0309.LGO Downloading firmware:... Problem talking to IR device the (...) (25 years ago, 27-Dec-99, to lugnet.robotics.rcx.nqc)
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| | Re: R2D2 and RCX : the LEGO official stuff is online
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Hi, I've created PDF files for building instructions for - R2D2 / RCX - Battle Droid from legomindstorms.com html files, but I don't know if I can legally put them available for everybody on my web site ? Any ideas ? (25 years ago, 24-Dec-99, to lugnet.robotics.rcx)
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| | R2D2 and RCX : the LEGO official stuff is online
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Look at (URL) , LEGO has posted detailled build instructions and programs to do this, certainly better I did at (URL) ! Christophe (25 years ago, 24-Dec-99, to lugnet.robotics.rcx)
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| | Re: FSMs, coding techniques and other goodies
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As we say in Vermont: Ayup! Finite State Machine(s) (25 years ago, 24-Dec-99, to lugnet.robotics.rcx)
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| | Re: FSMs, coding techniques and other goodies
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OK I'm guessing, but does FSM = finite state machine ? (25 years ago, 23-Dec-99, to lugnet.robotics.rcx)
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| | Re: R2D2 (DDK) with RCX : 2nd Look
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Hi Everybody, The R2D2 beta2 version is online, with : - two touch sensors - one light sensor in its turning head Please forget the last URL, go directly to : (URL) : (URL) a nice day/night, - Christophe - (25 years ago, 23-Dec-99, to lugnet.robotics.rcx, lugnet.robotics)
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| | Solaris & legOS
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Hi, I am new to legOS and I want to try to use solaris as the legOS platform. What is the current status of legOS running under Solaris?? Anyone successful with it?? So far, I got the latest version of GCC & binutils compiled and got legOS 0.2.3 (...) (25 years ago, 23-Dec-99, to lugnet.robotics.rcx.legos)
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| | Re: RCX onboard timer and motor pulsing
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(...) The timers run at 1/10 sec, but granularity for "waiting" a task is 1/100 sec. The PWM used for motor output has granularity of 1/1000 sec. Dave Baum p.s. I hope it wasn't my book that stated 1/10 and 1/1000 - if so could you e-mail me the (...) (25 years ago, 23-Dec-99, to lugnet.robotics.rcx, lugnet.trains)
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| | Mindstorms spirit.ocx programming = RCX ASM coding?
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I haven't looked at programming the RCX with Visual Basic or other MS Win languages via the spirit.ocx control, but someone (sorry -- I'm terrible with remembering names!) at the NELUG meeting asked me why people seem to like NQC when they could be (...) (25 years ago, 23-Dec-99, to lugnet.robotics, lugnet.robotics.rcx, lugnet.loc.us.ma.bos)
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| | Re: RCX onboard timer and motor pulsing
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(...) It is 1/10 of a second for the timers. However, in case you don't know. The RCX's Motor ports PULSE their signal. They always put out the same voltage. At level 8 it's 100% at level 4 it's an even on/off. I use it for my trains and it's great. (...) (25 years ago, 23-Dec-99, to lugnet.robotics.rcx, lugnet.trains)
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