 | | 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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| | Re: Problem with lego pneumatic parts
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(...) I bought some T-connectors that work great from a local RC hobby store. They were fuel hose fittings for RC planes or cars. The package contained one T, one penbladder T, and two 90 degree fittings. It cost US$2.95. They are made by Fourmost (...) (20 years ago, 15-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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(...) > (...) Who knows. Unless you show your code... Regards, Michael (20 years ago, 14-May-04, to lugnet.robotics.rcx.legos)
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| | problems with creating arrays of larger sizes
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Hello, at the moment I try to get experience with the memory of the RCX. I've read somewhere that the brickOS firmware is about 8kB big. I loaded a program with a size of 2 kb down to the RCX. With the help of the program I created an array of the (...) (20 years ago, 14-May-04, to lugnet.robotics.rcx.legos)
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| | Use of LNP under Windows
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Hello I'd like to send sensor values from the RCX to my PC. In this forum I've read that I can do this with the help of LNPD. The OS on my PC is Win 2000, I'm using Cygwin to compile my BrickOS programs, my IR-Tower is connected to an USB port. Is (...) (20 years ago, 12-May-04, to lugnet.robotics.rcx.legos)
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| | Re: BrickOs 0.2.6.10.6 vs 0.2.6.09.newConf2
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Patrik, It could be a memory leak, or maybe a memory fragmentation issue. If the memory manager cannot find a single block of memory large enough for the request it will fail. You may be able to tell by displaying the available memory on the lcd, (...) (20 years ago, 10-May-04, to lugnet.robotics.rcx.legos)
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| | Re: LNPD and Cygwin
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(...) Hi, I want to communicate with my lnpd daemon running in linux machine from my windows/cygwin machine. Do you have your winliblnp implementation for cygwin? Thanks, Mohammed (20 years ago, 10-May-04, to lugnet.robotics.rcx.legos)
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| | BrickOs 0.2.6.10.6 vs 0.2.6.09.newConf2
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Hiya, I think we have encountered a problem in the latest brickOS, we have implemented a quite big program(to demonstrate a network protocol PROPHET). We had some trouble using the latest brickos0.2.6.10.6 some memory leak? caused the program to (...) (20 years ago, 8-May-04, to lugnet.robotics.rcx.legos)
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| | Re: Problem with lego pneumatic parts
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There are lots of missing parts, not only pneumatic. "Elizabeth Mabrey" <emabrey@storming-robots.com> escribió en el mensaje news:200403161532.i2...ing.com... (...) (20 years ago, 7-May-04, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx.legos)
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| | Re: geometrical function in legOS
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(...) Have a look at (URL) You'll find all the codes there. Good luck (20 years ago, 6-May-04, to lugnet.robotics.rcx.legos)
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| | Re: geometrical function in legOS
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No, brickos(formerly legos) does not include sinus/cosinus functions. You will have to write your own. Or simply use a lookup table. //Patrik (...) (20 years ago, 5-May-04, to lugnet.robotics.rcx.legos)
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| | geometrical function in legOS
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Hello I want to program a mindstorms robot with the help of LegOS. Does LegOS support the use of geometrical function like sinus or cosinus ? I hope that someone can help me Andreas (20 years ago, 4-May-04, to lugnet.robotics.rcx.legos)
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| | Wiki site to compare Lego Langages
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hy, i began a wiki page to compare the lego languages because i didn't find a similar comparative table. it would be great if each one could contribute. (URL) thanks in advance Nicolas Maisonneuve (20 years ago, 30-Apr-04, to lugnet.robotics, lugnet.robotics.rcx.legos)
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| | (no subject)
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hy, i began a wiki page to compare the lego languages because i didn't find a similar comparative table. it would be great if each one could contribute. (URL) thanks in advance Nicolas Maisonneuve (20 years ago, 30-Apr-04, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | How to guarantee packet delivery ?
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I am implementing the stmt "rc=lnp_addressing_write()" in a while loop until (rc != 0). Receiving unit sends an ack which is treated by lnp_addressing_write() as a data collision w/rc= -1. It works ok as long as a reflection or actual collision does (...) (20 years ago, 22-Apr-04, to lugnet.robotics.rcx.legos)
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| | Re: brickos in SuSE 9.0
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Hi, I'm using suse9 and managed to get it working by installing debian utilities and installing the recommended(in brickos HOWTO) h8300 binutil/gcc versions as debian packages. But I'm using a different version of brickos0.2.09 because I'm having (...) (20 years ago, 20-Apr-04, to lugnet.robotics.rcx.legos)
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