 | | Re: error in using brickOS under Bricx Command Center
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(...) I have dug around a bit on my computer and I managed to duplicate your problem. If I do a make realclean from the brickOS root directory: C:\cygwin\brickos>make realclean [lots of output delete] then when I run make -f helloworld.mak I get the (...) (19 years ago, 18-Oct-05, to lugnet.robotics.rcx.legos)
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| | Re: error in using brickOS under Bricx Command Center
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Thank you very much for your enduring kindness. (...) The content of helloWorld.mak is the same as that you wrote before. When I run make -f helloWorld.mak, I get nothing. When I run make -f helloWorld.mak after deleting helloworld.lx, I get make: (...) (19 years ago, 18-Oct-05, to lugnet.robotics.rcx.legos)
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| | Re: error in using brickOS under Bricx Command Center
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(...) Given that your OS Root setting was wrong before and now it is right then modifying that setting did help. It just didn't completely fix your problem. The OS Root setting in BricxCC needs to be set to the Cygwin path to the root of the brickOS (...) (19 years ago, 17-Oct-05, to lugnet.robotics.rcx.legos)
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| | Re: error in using brickOS under Bricx Command Center
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I am able to use (compile and download) brickOS under cygwin but not under BricxCC. (...) I am sorry to say that the modification in the "OS root" setting didn't help. In fact I installed BricxCC in 2 of my computers. Both show the same error (...) (19 years ago, 16-Oct-05, to lugnet.robotics.rcx.legos)
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| | Re: error in using brickOS under Bricx Command Center
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Here are the contents of my helloworld.mak file: ROOT=/brickos KERNEL=$(ROOT)/boot/brickOS PROGRAMS=helloworld.lx DOBJECTS= all:: $(DOBJECTS) $(PROGRAMS) download:: all $(ROOT)/util/dll --program=1 --tty=usb --rcxaddr=0 $(PROGRAMS) set_addr:: (...) (19 years ago, 11-Oct-05, to lugnet.robotics.rcx.legos)
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| | Re: error in using brickOS under Bricx Command Center
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(...) I am not experienced in running brickOS under Windows, but are you sure you can mix the "/" and "\" in the path names? "\" is Windows style, "/" is UNIX style. (That is why I do all my brickOSing with Linux) (...) Why? I mean, why (...) (19 years ago, 6-Oct-05, to lugnet.robotics.rcx.legos)
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| | Re: error in using brickOS under Bricx Command Center
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(...) Thank you for your informations. After closing the error message window, I clicked F12 key. The resulting Code Listing Window contained nothing. The content of the file helloworld.mak is ROOT=C:\cygwin\brickos KERNEL=$(ROOT)/boot/brickOS (...) (19 years ago, 6-Oct-05, to lugnet.robotics.rcx.legos)
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| | Re: roboarm activities
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(...) I found that either rotating a colour wheel in front of the sensor(with its distance LED off) in combination with a white light -or- using a coloured LED at a _very_ close distance works well; i.e. most materials give a marked response as long (...) (19 years ago, 3-Oct-05, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | Latest version os
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Hi, Can someone post a latest compiled version of the brickos 0.9.0 (BrickOS.srec) I have some trouble to compile this version Thanks, Jan Kromhout Hellevoetsluis-NL (19 years ago, 3-Oct-05, to lugnet.robotics.rcx.legos)
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| | roboarm activities
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Hi, questions to all the guru out there. I have spent 20 hours on this roboarm. I am hoping to make it work like a color sorter. - pick up a ball wrapped in tin foil and drop it off at a container wrapped up in tin foil as well. - pick up a ball (...) (19 years ago, 2-Oct-05, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | Re: error in using brickOS under Bricx Command Center
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(...) Can you do F12 and post the contents (if any)? Do you have bash installed? While the error message is displayed you can open a command prompt and change directory to the location of your source code file. There you should find a .cmd and a (...) (19 years ago, 29-Sep-05, to lugnet.robotics.rcx.legos)
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| | Re: Can't upload new program after I have used LNP under brickos
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(...) Well, thanks for the help, that didn't actually work. But I found it out, what was my fault. In my Program I changed the LNP Base adress of the robot. After that the robot did not react to the default adress 0. So, at the end of the program I (...) (19 years ago, 29-Sep-05, to lugnet.robotics.rcx.legos)
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| | Re: Can't upload new program after I have used LNP under brickos
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(...) You had to turn on the lnp, with something like this: (I forget the exact commands) lr_startup(); lr_init(); lnp_init(); Make sure you turn it off: lr_shutdown(); Steve (19 years ago, 26-Sep-05, to lugnet.robotics.rcx.legos)
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| | Can't upload new program after I have used LNP under brickos
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Hello, |I have the following problem: |when I use lnp under brickos, the rcx does no longer respond to the legotower. |This means that I can't delete the program nor overwrite it. | |Pershaps somebody can help. | |Thanks, | |Andy (19 years ago, 26-Sep-05, to lugnet.robotics.rcx.legos)
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| | error in using brickOS under Bricx Command Center
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Dear all, I am new to Lego Mindstorms programming. Recently I installed Bricx Command Center in Windows XP Home following the instructions in (URL) I am able to use NQC and leJOS but not brickOS under Bricx Command Center. (Downloading the brickOS (...) (19 years ago, 17-Sep-05, to lugnet.robotics.rcx.legos)
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| | time control : BrickOS versus the RCX standard OS ?
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Hi list, I'm trying to implement a position regulation (using a motor and a rotation sensor), using for instance a PID (Proportional-Integr...erivative) regulation. I tried to code it in NQC, using the standard OS, but it seems that the RCX standard (...) (19 years ago, 17-Sep-05, to lugnet.robotics.rcx.legos)
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| | Re: RCX to RCX LNP
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(...) So, I finally sat down and figured out how the lnp state machine works in BrickOS. Turns out it was pretty easy to add in a new set of states so it can process a standard OpCode & store the parameters in variables. At this point, I'm not (...) (19 years ago, 8-Sep-05, to lugnet.robotics.rcx.legos)
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| | Re: dll 'error deleting program' with briskOS-0.9.0
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(...) I am also encountering this same problem: - I am working with a Linux 2.6 (Fedora Core 3). - The system was downloaded successfully to the RCX 1.0 brick with firmdl3. - But I COULD NOT load ANY program with the dll utility! Each time I got an (...) (19 years ago, 25-Aug-05, to lugnet.robotics.rcx.legos)
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| | Re: RCX to RCX LNP
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Hi. (...) That would be a fun state machine to set up... ;-) (...) It only does so when it receives opcodes between 0xf0 - 0xf7 or a standard firmware message (0x55). Of the first eight, only 0xf0 and 0xf1 currently require further action, with 0xf0 (...) (19 years ago, 17-Aug-05, to lugnet.robotics.rcx.legos)
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| | Re: RCX to RCX LNP
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(...) AFAIK there is no way to receive Lego-Messages, except by editing lnp.c and adding that by hand. The only Lego-Messages that brickos knows of, are those from the remote control and the "send message" opcode (0xf7). It may be worthwhile to add (...) (19 years ago, 12-Aug-05, to lugnet.robotics.rcx.legos)
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| | RCX to RCX LNP
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I'm trying to write a BrickOS program that I can use to check the voltage on other RCXs (which use standard firmware). I want to send the Get Battery Power command (0x30 and 0x38), and display the returned value on the display. Can anyone tell me if (...) (19 years ago, 10-Aug-05, to lugnet.robotics.rcx.legos)
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| | Re: Errors compiling threads
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(...) Hi Steve, Thanks, you were right about the compiler being ok. I changed "pid_t" to "tid_t" and got the thread statements working correctly. Finally, by consulting BrickOS documentation I found out the new syntax for the old "sys_time" command (...) (19 years ago, 4-Aug-05, to lugnet.robotics.rcx.legos)
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| | Re: Errors compiling threads
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(...) I don't think it's a problem with the compiler. There have been changes to the BrickOS code over the years. I know the value sys_time has been replaced with the function Get_sys_up_time(). You should be able to add this line at the beginning (...) (19 years ago, 4-Aug-05, to lugnet.robotics.rcx.legos)
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| | Errors compiling threads
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Hi all, I am new to C programming but I was able to build the C programming/compiler enviroment with cygwin and brickos 2.6.10 following the instructions at (URL) Later I upgraded to brickOS 0.9.0 and the compiler seems to be working fine most of (...) (19 years ago, 4-Aug-05, to lugnet.robotics.rcx.legos)
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| | Re: Control RoboSapein with IR-tower
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A friend sent me this link - here's how to replace RoboSapien's head with a PDA so he can be programmed to do all manner of things... Thomas (URL) (19 years ago, 8-Jul-05, to lugnet.robotics.rcx.legos)
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| | Re: Control RoboSapein with IR-tower
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(...) Doesn't Robolab have some way of starting external applications? You could possibly setup a PC with IR-tower, which would receive a message from RCX ((URL) - are the Robolab messages compatible with Mindstorms RIS? - I cannot find it (...) (19 years ago, 6-Jul-05, to lugnet.robotics.rcx.legos)
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| | RE: Control RoboSapein with IR-tower
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That will be way too cool if this can be done from Robolab..!!! ---...--- -------- Best Regards, Elizabeth Mabrey Partner of Director LEGO MINDSTORMS 3322 Rt. 22 West, Bldg 4, Ste 402 Robotics Community Branchburg, NJ 08876 Ph: (908) 595-1010 ; M-F: (...) (19 years ago, 6-Jul-05, to lugnet.robotics.rcx.legos)
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| | Control RoboSapein with IR-tower
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Hi, if you have a LEGO serial port IR-tower and and you also got a RoboSapien, you can now easily control it from the PC. (URL) to Linux and USB tower coming later...) Feedback is appreciated. Enjoy, Pavel. (19 years ago, 6-Jul-05, to lugnet.robotics.rcx.legos)
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| | Re: dll 'error deleting program' with briskOS-0.9.0
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(...) [snip] (...) [snip] (...) Igor, I just got mine up and running this weekend under Debian (thanks to apt-get / Synaptic). Since you have already successfully loaded firmdl3 this may not be relevant but I had to setup a legotower0 device. sudo (...) (19 years ago, 21-Jun-05, to lugnet.robotics.rcx.legos)
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| | Re: position calculating for robots
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(...) You don't need advanced math for navigating, but sin and cos for calculating coordinates in an X/Y coordinate system. This you need independently from your steering system. Brickos has no math lib, but there where some posts on this list some (...) (19 years ago, 20-Jun-05, to lugnet.robotics.rcx.legos)
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| | dll 'error deleting program' with briskOS-0.9.0
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Hello, according to informations that brickOS is the most powerfull of all Mindstroms OS's, I have tried to start it. I work with a Linux 2.6 (Fedora Core 3). I have compiled it with rcx-egcs cross compiler C and C++ cross compilers (version 1.1.2) (...) (19 years ago, 19-Jun-05, to lugnet.robotics.rcx.legos)
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| | Re: navigation and communication
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(...) We have worked with a big chart with black crosses on a white wooden surface. This works pretty well, since with the reflection of the light of the LED, black and white can be easily recognised. Then the ambient light has not a big influence. (...) (19 years ago, 8-Jun-05, to lugnet.robotics.rcx.legos)
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| | Re: position calculating for robots
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(...) There are various geometries have been implemented in Lego bricks for this. Here is one example: (URL) searching Google for "Lego adder subtractor" for others. (19 years ago, 2-Jun-05, to lugnet.robotics.rcx.legos)
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| | Re: position calculating for robots
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(...) From something I read 12 years ago for my university project (a Lego robot of course, but pre-RCX), I think it required differential equations (ugh!). Probably a bit too memory-hungry for an RCX. Perhaps you could use the PC's computing power (...) (19 years ago, 26-May-05, to lugnet.robotics.rcx.legos)
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| | position calculating for robots
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Thanks Thomas for your idea. The matter is that I was thinking of using angle sensors in order to calculate the number of the turns that each wheel has driven (I am talking for a robot with 2 wheels). I think that some advanced maths are required (...) (19 years ago, 26-May-05, to lugnet.robotics.rcx.legos)
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| | Re: navigation and communication
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(...) In theory you can find position by having a 'giant pantone chart' on the floor - a sheet of paper like the test pad with coloured squares on it, and use the light sensor to detect which square the robot is on. Has anyone tried this? It will be (...) (19 years ago, 25-May-05, to lugnet.robotics.rcx.legos)
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| | navigation and communication
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Thank you Nathan. I think your link is really gonna help! Now do you know of any way making the robot calculating its position constatly? You see i want to make the robot send its position to another one so it can go there. Thank you again for your (...) (19 years ago, 24-May-05, to lugnet.robotics.rcx.legos)
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| | Re: RCX communications at brickos
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(...) Hi John when I started programming IR communication under brickOS the following site helped me to get off the ground: (URL) that helps. Best regards nathan (19 years ago, 24-May-05, to lugnet.robotics.rcx.legos)
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| | RCX communications at brickos
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Hello everybody. I am working at my postgraduate project at lego mindstorms and I am looking for information on programming the RCXs to communication with each other. I'd be grateful if you'd supply me with some links about this subject. Also (...) (19 years ago, 17-May-05, to lugnet.robotics.rcx.legos)
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| | downloading BrickOS firmware for first time
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Hi all, I have built brickos 0.9.0 on Linux platform kernel 2.4.29. Brickos was successfully built with only C (no c++) support. My Lego is RCX2.0 and I am trying to download for first time the standard firmware. For connection with the RCX I am (...) (19 years ago, 17-May-05, to lugnet.robotics.rcx.legos)
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