 | | Anyone know how to build a stall sensor?
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Hi, I'd like to be able to monitor the current being drawn by a motor using the RCX (not the CyberMaster :-( ), so that I can detect stalls and possibly spins. I can't believe that this is particularly hard but I can't find any references to one on (...) (23 years ago, 5-Sep-01, to lugnet.robotics.rcx)
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| | Re: rotation sensor question
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Hi Jurgen, (...) Ok, then I will anihilate my answer/question... :o) (...) Ok, then I can save some time there... Thanks! (...) It's working perfectly, thank you! It's been up and running flawless since 1.0.0beta3, for all I know... Regards, Martin (...) (23 years ago, 5-Sep-01, to lugnet.robotics.rcx.java)
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| | Communication API between RCX and a PC
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Hi there, Have you seen this project: (URL) an API for communication between your PC and RCX using InputStream's and OutputStream's. Regards, Martin E. Nielsen (23 years ago, 5-Sep-01, to lugnet.robotics.rcx.java)
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| | Re: Why compiler can't find header file program.h?
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I found the reason, there are two config.h, one is for kernel in boot directory, one is for dll in dll-src, they have different definition. Zhengrong (...) (23 years ago, 5-Sep-01, to lugnet.robotics.rcx.legos)
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| | Why compiler can't find header file program.h?
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I add lines as below into lnp.c #ifdef CONF_PROGRAM #include <sys/program.h> #endif But I got error message when compile it. lnp.c:36: sys/program.h: No such file or directory In some lnp.c file, there are #ifdef CONF_VIS #include <dlcd.h> #include (...) (23 years ago, 5-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: rotation sensor question
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Hej Martin, (...) probably nobody will ever know. A lot has changed in the last month. (...) That's not necessary, it is already done in showNumber (but not in setNumber). (...) So it's working for you, I hope? Jürgen (23 years ago, 4-Sep-01, to lugnet.robotics.rcx.java)
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| | Instructions for LegOS USB support
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A friend of mine recently bought the 2.0 RCX and sent me the following information regarding getting USB and LegOS to play nice. He did this on a Win2K system. I have the old 1.0 RCX so please don't ask me how to make this work. Here is his e-mail (...) (23 years ago, 4-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: rotation sensor question
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Hi there, (...) What happened? nothing appeared in the LCD? This looks 99% like the example I did yesterday - except that I put in a "LCD.refresh()" after the #showNumber call. I run 1.0.2 RC4 under Linux... // Martin (23 years ago, 4-Sep-01, to lugnet.robotics.rcx.java)
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| | Re: RCX IR protocol
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Hi, Juergen has done a small mistake in his example. (...) Better it should be ~f7=~11110111=00001000=08. If you want to get a little bit of math you may add every number to its complement and you will always get ff for the result. If we take (...) (23 years ago, 4-Sep-01, to lugnet.robotics.rcx)
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| | Re: RCX IR protocol
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(...) Take a look at (URL) (...) 55 ff 00 (...) complement, i.e. invert every bit separately. So for example ~f7=~11110111=00001000=10. (...) Good luck and show it to us when you are done Jürgen (23 years ago, 4-Sep-01, to lugnet.robotics.rcx)
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| | Re: tweaking around dlcd_show( )
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(...) Due to an error of my news-reader I missed some answers to your original post. Probably mine is a little late. bye Bernardo e-mail: dibbe@freestation.it (23 years ago, 4-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: tweaking around dlcd_show( )
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Thank you Bernardo. As I explained during the discussion with Martin, I decided to use rather arrays of functions. So now I've got my own functions like void Lcd4BotL(){ dlcd_show(LCD_4_BOTL); } and the use of the array with an index is now fully (...) (23 years ago, 4-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: RCX IR protocol
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On the page (URL) look under the description of his send command and you'll see he sends a query "10" (hex) and gets a response "ef". This value, 0xEF, is the logical not (modulus 0xFF) of the query value 0x10. The tilde means "not". Dennis (...) (23 years ago, 3-Sep-01, to lugnet.robotics.rcx)
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| | Re: tweaking around dlcd_show( )
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(...) The macros LCD_?_* expand to two integers, separated by a comma; dlc_show() is a macro that expects one argument but uses it as an argument to macros expecting two arguments. I don't know exactly how this works, but it's to do with the order (...) (23 years ago, 3-Sep-01, to lugnet.robotics.rcx.legos)
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| | RCX IR protocol
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Hi all, I was looking at the IR protocol described at (URL) and i dont quite understand. In paricular: What is the packet header? what does the ~ mean? (eg "RCX reply opcode is always ~query opcode") I am asking because i am writing an application (...) (23 years ago, 2-Sep-01, to lugnet.robotics.rcx)
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| | My seggiestion about remote control patach
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I think remote control can be divided two parts: 1. defatk mode, if you user doesn't provide remote handler, the default hanlder will be called, key M1-M3 send standard message 1-3, A1-C1/A2-C2 increase/decrease 1 outport port a-c, P1-P5 run program (...) (23 years ago, 3-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: legos application downlod protocol
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legOS has two download programs, firmdl3.exe for kernel, and dll.exe for user program, you can check source files /legOS/util/firmdl/rcx_comm.c and /legOS/util/dll-src/loader.c. You can find LNP in file /legOS/kernel/lnp.c and lnp-logical.c. Br (...) (23 years ago, 3-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: Bug in leJOS 1.0.2.RC6, fixed in 1.0.2.RC8
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(...) Ahem. Similar bug in RC8 too. I'm fairly confident that RC9 has fixed them all. Apologies once again :-( Paul (23 years ago, 2-Sep-01, to lugnet.robotics.rcx.java)
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| | legos application downlod protocol
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Hi, I'm a developer for leJOS (a Java VM on the RCX) and I am interested in how legos applications are transfered from the PC to the RCX (basically because the leJOS mechanism seems to be fairly flakey and I'd rather not try to implement an entire (...) (23 years ago, 2-Sep-01, to lugnet.robotics.rcx.legos)
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| | Bug in leJOS 1.0.2.RC6, fixed in 1.0.2.RC8
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If you downloaded leJOS 1.0.2.RC6 you should download and install 1.0.2.RC8 instead as there is a bug in RC6 that causes the RCX to ignore sensors and buttons for several minutes. Apologies for the inconvenience - Paul Andrews. (23 years ago, 2-Sep-01, to lugnet.robotics.rcx.java)
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