 | | Re: Problem
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(...) Are you sure you typed "ln"? That should be "LN" but lowercase. It can be easy to confuse "l" with "i". ROSCO (20 years ago, 26-Jul-04, to lugnet.robotics.rcx.legos)
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| | Re: Problem
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(...) (20 years ago, 26-Jul-04, to lugnet.robotics.rcx.legos)
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| | Re: Problem
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(...) Hi, try to use this command to install brickOs on your RCX: ./firmdl3 ../boot/brickos.srec Andreas (20 years ago, 26-Jul-04, to lugnet.robotics.rcx.legos)
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| | Problem
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Hey all, I have winXP and have installed Cygwin and all and have everything i need to install brickOS on my RCX. Althought when i try to install brickOS on my RCX i type the command into the cygwin bash shell and it returns a error. The command is: (...) (20 years ago, 26-Jul-04, to lugnet.robotics.rcx.legos)
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| | Re: brickOS v1?
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(...) doesn't it do that already with kernel 2.6? I have a serial tower, so I wouldn't know, but it sems logical (as nqc requires that driver and it's just there for me : fc2) Thomas (20 years ago, 24-Jul-04, to lugnet.robotics.rcx.legos)
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| | Re: Communication Speed, PC -> RCX, LEJOS!
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(...) Hi Roger, Thank you for your help, it is a bit strange that you dont see any problems, since it is the same protocols we are using. I dont think the joystick is the problem since I have the same problem with inputs from keyboard or mouse, but (...) (20 years ago, 19-Jul-04, to lugnet.robotics.rcx.java, lugnet.lego.dacta, lugnet.robotics.edu, lugnet.robotics.rcx.legos, FTX)
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| | pneumatic trouble
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Kevin- I am trying to build a heavy duty automatic truck transmission, and I have a few questions concerning pneumatics. 1) I did a few rough sketches of what the transmission would look like (the main part of it is the valve, which I originally (...) (20 years ago, 17-Jul-04, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos, lugnet.technic)
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| | Re: Communication Speed, PC -> RCX, LEJOS!
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(...) I could not repeat your experiment exactly because I don’t have a joy stick. So instead I wrote a pair of programs that send single byte messages between the PC and the RCX. The RCX adds 1 to the incoming byte and immediately send it back. The (...) (20 years ago, 14-Jul-04, to lugnet.robotics.rcx.java, lugnet.lego.dacta, lugnet.robotics.edu, lugnet.robotics.rcx.legos, FTX)
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| | Re: Communication Speed, PC -> RCX, LEJOS!
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From the picture (d1_p31) it looks as though all 4 RCXs can see the tower. I don't know anything about pcrcxcomm.jar or rcxf7port; and not much about lejos, however, if all 4 RCXs try to respond to the tower, you will have collisions. Try covering (...) (20 years ago, 7-Jul-04, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.java)
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| | Communication Speed, PC -> RCX, LEJOS!
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Hi everyone, Im working on a project with controlling a large Container Crane by 4 RCXs. I have implementet some controlling and a lot of functions in the model, including a userinterface made in Java for a laptop. The crane is controlled by a (...) (20 years ago, 7-Jul-04, to lugnet.robotics.rcx.java, lugnet.lego.dacta, lugnet.robotics.edu, lugnet.robotics.rcx.legos, FTX)
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| | brickOS v1?
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Hi, I'd like to know if the v1 of brickOS with the support of the usb tower for linux (without patch) is going to come soon or not. Actually I have tried many things but without success. Thank's Nil (20 years ago, 7-Jul-04, to lugnet.robotics.rcx.legos)
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| | WinLNP has been found!
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(...) WinLNP among other tools can be found here: (URL) (20 years ago, 24-Jun-04, to lugnet.robotics.rcx.legos)
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| | pc to rcx communication
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Hi all, I am working on my graduation project and I am stuck at one problem. I want to send commands to my rcx from a win32 aplication(Visual C++ 6.0). Firmware is Brickos. The only way I colud find was lnp. But for the Pc side there is no solution (...) (20 years ago, 23-Jun-04, to lugnet.robotics.rcx.legos)
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| | Re: brickos with suse 9.1
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(...) download the packages from debian and use alien to convert thenm to rpm. That was the only way it worked on my fedora box. (20 years ago, 23-Jun-04, to lugnet.robotics.rcx.legos)
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| | Re: lego pneumatic
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(...) Good reasearch..... Using the mindstorm motors, who's torque is a good match for the small pump, the small pump gets to a static pressure faster than a large pump using hte same kind of motor. The small pump does not keep up with the total (...) (20 years ago, 9-Jun-04, to lugnet.robotics.rcx.legos, lugnet.technic)
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| | RE: lego pneumatic
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Hi , According to the (URL) a mini-compressor (using a single small pump) is actually more efficient than using double pump. It said more efficient, but not generate higher output though, correct??? (URL) produces a more persuasive test. However, (...) (20 years ago, 9-Jun-04, to lugnet.robotics.rcx.legos, lugnet.technic)
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| | Re: lego pneumatic
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(...) Interesting project. Will your car have a pneumatic engine? Pneumatic steering? The large pump can run the engine with no externally controlled switches. Steering on the other hand would require control of two switches. Both pistons expanded (...) (20 years ago, 8-Jun-04, to lugnet.robotics.rcx.legos, lugnet.technic)
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| | RE: lego pneumatic
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Hi Kevin, Thank you very much for the info. I'll purchase the book and visits those sites for info. I am trying to build a pnematic car capable of turning by reacting to light and touch. My current problem is to automate the valve switch by (...) (20 years ago, 6-Jun-04, to lugnet.robotics.rcx.legos, lugnet.technic)
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| | Re: lego pneumatic
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(...) Hi Liz, One of the books I co-authored in has a Mindstorms based adding machine that performs arithmetic using pneumatics. Since the printing of that book, pneumatics design has advanced quite a ways. I build a lot pneuatic things, and would (...) (20 years ago, 5-Jun-04, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos, lugnet.technic)
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| | lego pneumatic
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Suggestion on a good book which focus on more penumatic construction with LEGO? -- thanks, Elizabeth Mabrey (20 years ago, 5-Jun-04, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | Re: brickos with suse 9.1
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Hi, I tried to install brickOS-0.2.6.10.6 in SuSE 9.0 machine and faced the same problem. You can install an older version of brickOS (like brickOS-0.2.6.10) and it works fine with SuSE 9.0. Mohammed (...) (20 years ago, 3-Jun-04, to lugnet.robotics.rcx.legos)
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| | Re: lego fiber optics light unit
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For the "Fiber Optics Element" only, try: (URL) fiber optic related items, try: (URL) are a lot of elements for sale, as well as cables, and even some sets with the FOS. (...) (20 years ago, 28-May-04, to lugnet.robotics.rcx.legos)
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| | lego fiber optics light unit
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Hi, By any chance that anyone knows where I may be able to find the fiber optics light units? -- thanks in advance E (20 years ago, 28-May-04, to lugnet.robotics.rcx.legos)
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| | brickos with suse 9.1
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I'm tying to get brickOS started on a Suse 9 System, Did anybody install brickOS and the gcc-hitachi on Suse 9 System? After I download the brick.srec to the RCX it crashes. thx KHL (20 years ago, 27-May-04, to lugnet.robotics.rcx.legos)
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| | Re: table brickos light to percent
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In my opinion, the best way to approach this is the following: When the program starts, begin a Calibration, by first activating the light sensor, then reading the value. You can either wait a specific amount of time or have the user press a button (...) (20 years ago, 27-May-04, to lugnet.robotics.rcx.legos)
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| | Re: table brickos light to percent
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(...) Hi Thomas, Here's the formula used in the dsensor.h include file: #define ds_scale(x) ((unsigned int)(x)>>6) //!< mask off bottom 6 bits #define LIGHT(a) (147 - ds_scale(a)/7) //!< map light sensor to 0..LIGHT_MAX This maps the raw sensor (...) (20 years ago, 27-May-04, to lugnet.robotics.rcx.legos)
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| | table brickos light to percent
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i there a table or converter from brickos light readings to light percentage ( and vice versa ) Thomas (20 years ago, 27-May-04, to lugnet.robotics.rcx.legos)
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| | Re: issues with 6-legs bot
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(...) Your approach is pretty common. As it turns out, you can (should) remove the wait time, also. Many people think they need to tell the robot how long to turn, or how long to go forward. It's like driving down the road in a car. You don't look (...) (20 years ago, 20-May-04, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | RE: issues with 6-legs bot
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Hi Steve, Thank you very much for your put! (...) Can't take the credit. I got the idea from the Sato book, instead of 4 legs, I thought the 6 legs are much more stable. (...) That's pretty much what I did initially, except I used to put in "wait" (...) (20 years ago, 20-May-04, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | Re: issues with 6-legs bot
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What if you were to make a small platform for the light sensors in between the legs that rest on the ground and has a slide somewhere so when the robot moves up or down it stays touching the ground. ----- Original Message ----- From: "Elizabeth (...) (20 years ago, 20-May-04, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | How to increase address range in brickos ?
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Does anyone know a way to increase the address range in brickos beyond 0 through 15 ? When I cycle through the address range via View + Prgm it stops at 0xF0. The port is always set at zero. What if I modify the port value ? Or does that affect (...) (20 years ago, 19-May-04, to lugnet.robotics.rcx.legos)
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| | Re: issues with 6-legs bot
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(...) Am I correct in thinking the two front, and two back legs don't move, only the middle two? That's a nice, simple design. And you have two light sensors, and your goal is to keep them on either side of the line, right? (...) If I understand (...) (20 years ago, 19-May-04, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | issues with 6-legs bot
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Hi, I built this 6-legs bug for a black line tracking test. The construction: It is a walker with 2 motors, one for 3-left-legs, another one for the right. Middle leg on each side is connected on an 8-tooth gear and attach an 40-tooth gear. This (...) (20 years ago, 19-May-04, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | Re: Problem with lego pneumatic parts
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Very helpful info... thanks all for the info. "Mike" <kbg17[nospam]@[nosp...tzero.net> wrote in message news:Hxqu55.23Az@lugnet.com... (...) cylinder (...) does (...) they (...) They (...) T, one (...) by (...) I.D. (...) sold (...) just (...) (20 years ago, 19-May-04, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx.legos)
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| | RE: problems with creating arrays of larger sizes
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(...) Need to understand the difference how array and pointers are being allocated ... And char is usually one or two bytes, depending on type of procesor; and pointer is usually 4 bytes, unless you go to 64-bit processor ... If you wish to utilize (...) (20 years ago, 18-May-04, to lugnet.robotics.rcx.legos)
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| | Re: problems with creating arrays of larger sizes
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(...) This won't work for sure. If you look into the kernel sources, DEFAULT_STACK_SIZE gives the value for every user program's stack. Actually, this is 1KByte, if I remeber it right. Your character array will be allocated on the stack and so you (...) (20 years ago, 17-May-04, to lugnet.robotics.rcx.legos)
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| | Re: problems with creating arrays of larger sizes
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(...) Hi Andreas I would suggest, that you instanciate your variable as global, and not within the main() function. Or declare it as static so that the compiler does not try to instanciate it on the stack. The problem could be due to a stack (...) (20 years ago, 17-May-04, to lugnet.robotics.rcx.legos)
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| | Re: problems with creating arrays of larger sizes
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OK, here is my code. #include <dmotor.h> #include <dsensor.h> #include <unistd.h> #include <dbutton.h> #include <conio.h> #include <stdio.h> #define n 1000 void verzoegerung(unsigned long zeit) { while(zeit--); } int main() { int i; char c[n]; (...) (20 years ago, 17-May-04, to lugnet.robotics.rcx.legos)
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| | Re: Problem with lego pneumatic parts
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(...) Presumably that was Ben Fleskes... (see (URL) Interesting....they make custom plastic parts. (...) I have been very pleased with the wheels Ben commissioned and it's in part a testimony to the molder he chose (and in part to his engineering (...) (20 years ago, 15-May-04, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx.legos, lugnet.trains)
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| | multiple source files?
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How do I compile multiple .C source files to one .lx file? as far as I know, the default makefile doesn't support that. Thomas (20 years ago, 15-May-04, to lugnet.robotics.rcx.legos)
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