 | | C standard functions with legOS?
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Is it possible to use functions from C standard libraries with legOS, e.g. sin() from math.h or abs() from stdlib.h? They are a part of gcc, but e.g. math.h seems to produce compiler errors. Best regards. Michael Wisse (23 years ago, 25-Apr-01, to lugnet.robotics.rcx.legos)
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| | Re: lcd
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Yes, if you have three values, just display them like this : cputw((VALUE_1 << 8) + (VALUE_2 << 4) + (VALUE_3)); (...) (23 years ago, 25-Apr-01, to lugnet.robotics.rcx.legos)
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| | lcd
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Is it possible to display 2 lcd intergers on the screen at the same time? ie 2 rotation sensors. Thanks in advance chris (23 years ago, 25-Apr-01, to lugnet.robotics.rcx.legos)
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| | Yet another RcxCC revision
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Okay, thanks to the input from some of you who have tried my revised RcxCC I have recently fixed a few bugs and added a few more user-configurable options. Find the latest revision to RcxCC at: (URL) this version you'll find: 1) Fixed the NQC (...) (23 years ago, 24-Apr-01, to lugnet.robotics.rcx.nqc)
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| | Re: Sensor Commands and legOS 0.2.3
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(...) TOUCH_1 is a macro defined in dsensor.h starting form version 0.2.4. If you don't want to upgrade, here is the code: #define TOUCH(a) ((unsigned int)(a) < 0x8000) #define TOUCH_1 TOUCH(SENSOR_1) #define TOUCH_2 TOUCH(SENSOR_2) #define TOUCH_3 (...) (23 years ago, 24-Apr-01, to lugnet.robotics.rcx.legos)
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| | Sensor Commands and legOS 0.2.3
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I just installed legOS 0.2.3 under Redhat 6.2, using the RPM's that were linked to in the HOWTO. Everything I have tried so far has worked great, except for getting my touch sensors to work. The documentation I have read said that in 0.2.x one could (...) (23 years ago, 24-Apr-01, to lugnet.robotics.rcx.legos)
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| | Re: RCX and IR Range Characteristics?
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hi Ralph, I think I'm lucky. I just did some experiments with a modified IR-tower. The modifications were: the "keep alive trick" from John Barnes and my own trick to add a few more diodes to get rid of the 9V battery. Without a batttery in the (...) (23 years ago, 24-Apr-01, to lugnet.robotics.rcx)
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| | RE: RCX and IR Range Characteristics?
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As expected Jeff Hazen and John Barnes sent along a few itmes of interest. (...) Jeff asked if the diffuse cover of the tower had any effect at all. From my experiments, Jeff - the answer is no. John Barnes suggested that the bit-balancing act that (...) (23 years ago, 24-Apr-01, to lugnet.robotics.rcx)
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| | Re: RCX and IR Range Characteristics?
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(...) SNIP (...) SNIP Not experience, but perhaps the location of the IR diodes in the tower is effecting it's peformance? As other people have noted before, the diodes are not located behind the smooth molded "windows" in the tower, but lower, (...) (23 years ago, 24-Apr-01, to lugnet.robotics.rcx)
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| | RE: LegOS scheduler questions
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(...) I don't /think/ so, but I don't have time to check to be certain and it has been now literally 10 months since I looked at kernel source. :\ (...) See #1. :\ (...) By design? As many as you can throw at it- there is no hard-coded limit, and (...) (23 years ago, 24-Apr-01, to lugnet.robotics.rcx.legos)
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| | RE: LegOS scheduler questions
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Folks, This is my first day with Leogs. I just installed Legos, compiled a program and have run it successfully. Haven't got a chance to take a look at the kernel source. I have the following questions and any response will be greatly appreciated. (...) (23 years ago, 24-Apr-01, to lugnet.robotics.rcx.legos)
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| | RCX and IR Range Characteristics?
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Hi All, A while back, Ben Erwin asked about other user's experiences with the IR tower and range. I'm trying to characterize a persistent problem with the pbForth serial library, with respect to message reliability. It seems that even in high range (...) (23 years ago, 24-Apr-01, to lugnet.robotics.rcx)
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| | Re: CD-ROM Sample for Creative Projects with LEGO Mindstorms!
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I liked your book, "Creative Projects with LEGO Mindstorms". We need more books like yours on the Mindstorms market. I've always spun wheels thinking I've got to build a robot that does something like sweep the floor... or maybe that was just (...) (23 years ago, 23-Apr-01, to lugnet.books, lugnet.robotics, lugnet.robotics.rcx)
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| | WinLNP issues
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For those who prefer the Java programming language, I've written some classes that may help with LNP. What you need is : the JDK 1.2, the Java Communication APIs (classes for Java communication through the serial port, and my classes located at : (...) (23 years ago, 23-Apr-01, to lugnet.robotics.rcx.legos)
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| | Visual NQC 2001 final version
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CHECK THIS OUT!! The final version of Visual NQC 2001 is available now on (URL) this moment only the English version is available for download but the Dutch and German versions will come soon. For more information about new features see News on the (...) (23 years ago, 23-Apr-01, to lugnet.robotics.rcx.nqc)
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| | More LNP Issues
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Thanks to Rainer for helping me with the stupid compiler bug :) Now that the PC side of LNP is working, I'm having troubles with the RCX side... I've modified the LNP sample provided on the WinLNP page as follows (with the includes trimmed): #define (...) (23 years ago, 22-Apr-01, to lugnet.robotics.rcx.legos)
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| | Question for John Barnes
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hi John, Some time ago there was a discussion about keeping the IR-tower alive. I want to keep the IR-tower alive, for fast data transport from RCX to PC. You mentioned that you had drawn the circuit diagram, but you never published it. Do you have (...) (23 years ago, 22-Apr-01, to lugnet.robotics.rcx)
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| | Re: Revisions to RcxCC
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(...) Hmmm, it seems to be correctly passing -TRCX2 on the command line in my testing. I haven't actually tested with a brick containing the RCX2 firmware, but when I put an RCX2-only command in a program it compiles fine when I've selected RCX2 but (...) (23 years ago, 22-Apr-01, to lugnet.robotics.rcx.nqc)
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| | Re: Revisions to RcxCC
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(...) With the amount of work you have put in on this it should be I who apologizes for pestering you. I tried the most recent version. It is correctly finding the nqc compiler now. Unfortunately it doesn't appear to be passing the correct command (...) (23 years ago, 22-Apr-01, to lugnet.robotics.rcx.nqc)
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| | Re: Revisions to RcxCC
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(...) Whoops. I was assuming that since Mark's version put NQC in the same directory as RcxCC everyone was using the NQC in the same directory. I hadn't tried it differently myself. So in one of my past revisions I stuck a path on the front of the (...) (23 years ago, 22-Apr-01, to lugnet.robotics.rcx.nqc)
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