 | | Update and question
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Hello everybody, It's been a while since my last e-mail. Thanks for all the help so far. I've managed to connect a RadioMetrix ((URL) radio transceiver to the Handy Board. My mobile robot (using a HB) can now communicate with a remote PC using the (...) (27 years ago, 4-Apr-98, to lugnet.robotics.handyboard)
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| | CONFIG of 68HC11E2
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Hi to all ! Yesterday, I sent a very interesting text of a motorola application concerning the problem with the CONFIG reg of the 68HC811E2. Unfortunately, there is no reaction til today from anybody. This application says, that the CONFIG of the (...) (27 years ago, 4-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Troubles with dallas memory 2.
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One of the more common problems with the somewhat larger packages that the Dallas memories come in is pin bending. Remove the memory and look carefully to see if one of the pins has been bent out of shape. If you have one Hboard where it works and (...) (27 years ago, 3-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Hall Effect
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Newark Electronics sells Hall effect sensors for as little as $1.29. (Newark P/N: OH180U) For orders under $25.00 they charge an extra $5.00. There's a Newark (confirmed working address) web page at: (URL) Enjoy! de AB7HI, Stephen Lee, Federal (...) (27 years ago, 3-Apr-98, to lugnet.robotics.handyboard)
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| | Problems with CONFIG of 68HC811E2
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Hi to all ! Here a very interesting info for all, they have problems with the CONFIG of the "E2" (included myself). I found this at the motorola site (URL) Here the text: AS-79 APPLICATION SNAPSHOT PROBLEMS PROGRAMMING THE CONFIG REGISTER OF THE (...) (27 years ago, 3-Apr-98, to lugnet.robotics.handyboard)
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| | Problems with CONFIG of 68HC811E2
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Hi to all ! Here a very interesting info for all, they have problems with the CONFIG of the "E2" (included myself). I found this at the motorola site (URL) Here the text: AS-79 APPLICATION SNAPSHOT PROBLEMS PROGRAMMING THE CONFIG REGISTER OF THE (...) (27 years ago, 3-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Re:68HC811E2
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-----Original Message----- From: Mike Chang <mchang@westworld.com> To: HandyBoard <handyboard@media.mit.edu> Date: Thursday, April 02, 1998 8:19 PM Subject: Re:68HC811E2 No advanage to them (i think) because u cant use the 2k eeprom with the (...) (27 years ago, 3-Apr-98, to lugnet.robotics.handyboard)
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| | Re:68HC811E2
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Hi All, I'm curious. I've been watching all the stuff come through about using a '811E2 chip in the Handyboard. My question is: What are the advantages of this? I'm using E2's in my BotBoard from Marvin Green but I moved most of my stuff to the HB (...) (27 years ago, 3-Apr-98, to lugnet.robotics.handyboard)
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| | Troubles with dallas memory 2.
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i have more info to that puzzle. I assembly two mother handy. One work fine , the other only download to a common memory, don't download to a dallas memory !!! I don't uderstand why if work in the common memory , don't in the backed memory? The idea (...) (27 years ago, 3-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2 CONFIG Problem
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Hi Fred, thanks for the answer. Oh yes I try'd all, that is possible with the pcbug342 but without success. A very good tip comes now from Adrian Susianto about the "64 cycles" after reset (thanks Adrian). I remember, that I read about this in a (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Hall Effect
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Does any one know of a source for Hall Effect sensors? I know DigiKey sells them, but I just want to buy a few. I don't want enough stuff to get me upto the $25.00 minimum order. I have not been able to find them in Mousers catalog. Can anyone (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | New use for the HB
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Just thought I'd write a little note to everyone describing how we are using the HB. I've been working with Bloomington High School South in Bloomington, IN. About a year ago they decided to put together a Solar Bike Team to race in the SunRayce in (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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... but I tryed this already and without success. The hbdl loader says "Invalid CONFIG reg (0xFF) Try again" and when I check the eeprom area with PCBUG11, it is already there. I think, the E2 has a special protection for the CONFIG ---...--- Hello (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Trouble with a dalla memory .
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I have assembly a handyboard the last week , and somethings is wromg, and i can find what is the problem. This board have a dallas backed memory , so i dont use the battery pack. The memory can be removed and put in the place a common memory (don't (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2 Can't be set
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I had the same problem with an A1, in this case it was stuck at 0x0D. hbdl would NOT set the config, but I was able to do it with dl from Win95 run in full MS-DOS mode. Even this was problematical; dl would invariably hang the computer once or (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | RE: Need help finding a A1 chip.
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Try BG Micro, 1-800-276-2206, www.bgmicro.com/ . They have/had a quantity of used A1's for $6.95. You may need to clean/straighten the pins, but so far the ones I bought work. Brett Anthony Research Technician School of Engineering and Computer (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2 Can't be set
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I ran into the same problem. I was unable to set it with any of the utilities for the handyboard. I ended up using my mini-board and its download software to correctly set the register. I don't know why it worked. Andy hobbytec@cas.auracom.com (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Servos
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(...) This won't work, as the servo's require a one-shot, not a variable duty cycle type of pwm (like what comes from the motor drivers on the HB). ie. the width of any given pulse is not consistent, just the overall duty cycle. RC servo's require a (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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Thanks John, but I can't believe that, it must be a way there, to alter the CONFIG register ! Erwin (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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Hi Quinn, You are right, my CONFIG is also at 0xFF and try'd all to alter it but without success. Thanks Erwin. (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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Thanks Clancy, but I tryed this already and without success. The hbdl loader says "Invalid CONFIG reg (0xFF) Try again" and when I check the eeprom area with PCBUG11, it is already there. I think, the E2 has a special protection for the CONFIG reg. (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2 Can't be set
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No I can't believe that the config register is unchangeable, because I own a single 68hc811e2 that has a correct config, but 12 others that dont, also these are used in the miniboard pre handyboard? with a config set at 0d, if i remember my old (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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(...) My advice, don't waste your time, i spent about a year trying to figure that out and never got the config register changed to anything useful, and I also contacted motorola about 5 times and no tech person there could get it changed either. (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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-----Original Message----- From: E. Baeck <erwin.baeck@styria.com> To: Handy Board Mailinglist <handyboard@media.mit.edu> Date: Wednesday, April 01, 1998 10:50 AM Subject: 68HC811E2 (...) sounds like my chip. Is your config Register stuck at 0xFF (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Working with a different compiler
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Jaron, Does the compiler provide LCD driver for HB or you ported the code to this compiler ? -Pandit (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Need help finding a A1 chip.
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Hi All, I have come across a RugWarrior board that I think has a bad uC chip. I don't want to pull the chip form my HB to test it just in case I'm wrong. (turn one working and one not into two not) My question is where can I find another 68HC11A1FN (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Servo Controller
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It needs an async. serial interface with 8bit no parity. You can you the utility posted at HB site for driving one of the digital output to work as async. serial interface. -Pandit ---...--- (...) (27 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Denning Branch Mobile Robotics
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Yeah, I tried calling this number and some other numbers of representatives I obtained about two years ago. None of the number worked, though. Did they go out of business? ---...--- ericson mar Master of Engineering Candidate Project: Mobile (...) (27 years ago, 1-Apr-98, to lugnet.robotics.handyboard)
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| | Servo Controller
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Has anybody use Lynxmotions MiniSCC II servo controller with the handy board? Can it be controlled from a digital output, or does it require a serial port with RS232 levels? (27 years ago, 1-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Working with a different compiler
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some of these questions are answered in the "i am using my own C compiler/what is the memory map of the handy board" entry in the FAQ. after reading this, please make sure you review the FAQ, because there is more information there. here are some (...) (27 years ago, 1-Apr-98, to lugnet.robotics.handyboard)
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| | Working with a different compiler
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Hi all, I managed to get the TASKING (Whitesmiths) 68HC11 optimizing C compiler, debugger and simulator for use with the Handyboard. Thrilled at first I now realize I leave the safe Interactive C path and wander of in the dark. I would like to get (...) (27 years ago, 1-Apr-98, to lugnet.robotics.handyboard)
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| | 68HC811E2
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Hi all ! I need help !!! How is the right process to program the CONFIG register to the value of 0x0C on the 68HC811E2 ? Thanks. Erwin (27 years ago, 1-Apr-98, to lugnet.robotics.handyboard)
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| | Cannot download :(
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I had several problems downloading from a P166 on Com2 running Win95, and found the following solutions worked. 1. Go to Control Panel, System, Device Manager, Ports, Com2 and select properties. Set for 1200 bps; 8; none; and 1. Click the Advanced (...) (27 years ago, 1-Apr-98, to lugnet.robotics.handyboard)
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| | Hexapod, with web site
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reading over the msg again I missed putting in where the site actually is, sorry here it is: (URL) Marshal E-Mail: hobbytec@cas.auracom.com (27 years ago, 1-Apr-98, to lugnet.robotics.handyboard)
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| | Hexapods
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Here is a good web site for hexapods that can be run from a 6811 cpu, with schematics and the ic .c files as well, it is a handyboard/rugwarrior board that can run 12-(14?) R.C. servos directly. simple and works well, got mine running in one (...) (27 years ago, 1-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Denning Branch Mobile Robotics
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(...) Here's what I found on the web: Denning Branch International Robotics 1401 Ridge Avenue Pittsburgh, PA 15233 tel: (412) 322-4412 fax: (412) 322-2040 email: Soon. Messages to hpm@cs.cmu.edu will be forwarded. Denning-Branch is a merger of (...) (27 years ago, 1-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Cannot download :(
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Based on my Win95 / NT programming experience: (...) Yes it most certainly does!. Any serial port needs a buffer in windows, to account for multiple programs that would want to use the port. (ie could have 2 or terminal programs accessing the same (...) (27 years ago, 1-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Cannot download :(
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(...) So problems with downloading could be related to the FIFO buffer? I don't think a mouse port needs the FIFO buffer. Can Win95 or NT disable the FIFO buffer when using the mouse driver on a certain com port?? I know that Win95 can let you (...) (27 years ago, 31-Mar-98, to lugnet.robotics.handyboard)
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| | RE: Digital IO expansion
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(...) OK, its late here. The CORRECT link is : (URL) Coghill Mobile +44 (0)410 509 738 Alternative Audio, Edinburgh, UK Phone/Fax +44 (0)131 443 3297 Alternative Audio, Sydney, Australia If faxing please call first !! WWW : (URL) (I'm working on it (...) (27 years ago, 31-Mar-98, to lugnet.robotics.handyboard)
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| | Digital IO expansion
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I have a page on my site that might be of interest both to the proposed "Circuit Bank" and the HandyBoarders in general. It details how to expand the inputs and outputs of the Handyboard, covering both Digital circuitry and software code. You can (...) (27 years ago, 31-Mar-98, to lugnet.robotics.handyboard)
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| | Denning Branch Mobile Robotics
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Does anyone know if this company still exists? If so, would you happen to knwo the URL? Thanks! ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The (...) (27 years ago, 31-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Cannot download :(
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(...) Hey everyone! This is this first time I've seen this suggestion for getting the downloaders to work on fast machines. Maybe other people who are having trouble can try this! Fred (...) (27 years ago, 31-Mar-98, to lugnet.robotics.handyboard)
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| | Port A miniboard
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If Port "A" on my miniboard doesn't have +5v supplied do I have a hardware problem or does this just need to be enabled in software? Trying to get a white line counting interrupt routine going with an edge detect on PA7. ___...___ *Jason (...) (27 years ago, 31-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Cannot download :(
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hello i had the same problem with my AMD K6-166mmx and spent a lot of time pulling hair, but then tryed my 133mmx laptop and hey presto it worked with the same setup im confused to the problem too, so i just use my laptop. but would like to hear (...) (27 years ago, 31-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Cannot download :(
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I have had the same problems with my P133 desktop running W95. Other stuff communicated fine through com1 but the HB would not work. After I changed the setting for recive buffer and transmit buffer to the lowest value possible (min) it worked fine. (...) (27 years ago, 31-Mar-98, to lugnet.robotics.handyboard)
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| | Penn State Robot contest update
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Hi all, The Penn State Fire-fighting robot contest will be held this Saturday (April 4) at 3pm at the Penn State Abington College in Abington, PA (Phila., PA suburb). We are looking for last minute participants and spectators. Great prizes!! The (...) (27 years ago, 31-Mar-98, to lugnet.robotics.handyboard)
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| | Robot Football Competition in UK
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This years Robot Football Competition will be held at the science museum check out this url for details (URL) Barnard cgb@dcs.qmw.ac.uk Department of Computer Science Queen Mary & Westfield College Mile End Road London E1 4NS Tel: +44 (0)171 975 (...) (27 years ago, 30-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Cheap Sonar
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I have a couple of the original sonar modules made by Texas Instruments (I think these are the ones the article is describing) and they work just like the model 6500 ones that Polariod now sells. You can also get them from (URL) connector on these (...) (27 years ago, 30-Mar-98, to lugnet.robotics.handyboard)
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| | RE: rc servos
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I am currently using an MSCC11 from Novasoft with a program called Servo16 (I actually think the version I am using is called something different but the original program was Servo16). This can control up to 16 servos, the first 12 can be configured (...) (27 years ago, 30-Mar-98, to lugnet.robotics.handyboard)
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| | rc servos
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I was wondering if anyone has sucessfully controlled more than two servos using the handy board. I was thinking of making a 6 legged walker, however controlling the 12 servos could be a problem. I have seen some basic stamp based servo controllers (...) (27 years ago, 30-Mar-98, to lugnet.robotics.handyboard)
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| | Cheap Sonar
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A while back there was a discussion on cheap sonar. I was wondering if anyone has tried the sonar device from this page (URL) . If someone has tried it, could you tell me what you think of it, and if you ran into any problems using it. Also, I just (...) (27 years ago, 30-Mar-98, to lugnet.robotics.handyboard)
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| | Robot pics
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We have pictures and schematics of our new robot "Betty" on-line. It uses our Finger Board for the controller, a compatible "Handy Board" Embedded Acquisition Systems 1565 Shrader Street San Francisco, CA 94117 WEB (URL) jfong@hooked.net (27 years ago, 30-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Cannot download :(
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(...) I had a similar problem, and while I couldn't exactly fix it, I managed to avoid it as follows: I had a serial mouse on COM1 and the HB plugged into COM2. I could *not* download like this no matter what I tried. So, on a whim, I found a 9 to (...) (27 years ago, 30-Mar-98, to lugnet.robotics.handyboard)
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| | Servos
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Can you hook up RC servo signal inputs to the motor drivers? It looks to be feasable as both require a pulse width modulated signal but I'm not sure if the motor driver's carrier frequency and range of pulse widths is suitable. Any ideas - it would (...) (27 years ago, 30-Mar-98, to lugnet.robotics.handyboard)
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| | Cannot download :(
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hello, I'm having trouble downloading on my Dell 300mhz PII computer but for some reason have no trouble downloading on my old 486dx2 though. I get a "wrong port or board mode message" when I use the HBDL.exe software and a "timeout on serial (...) (27 years ago, 30-Mar-98, to lugnet.robotics.handyboard)
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| | HB Kits
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Does Gleason Research still sell the non-assembled HB kits. Because I went to their web page but they only had the assembled version. Thank You, Peter Eacmen (27 years ago, 30-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Vector 2x and Polaroid sonar source
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(...) Try Wirz Electronics for the sonar module. Last I heard, they will sell you a single unit for about $50, and I'm pretty sure you can order via the web. Unfortunately, I don't think that they sell the V2X. You can also get the sonar module (...) (27 years ago, 29-Mar-98, to lugnet.robotics.handyboard)
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| | Vector 2x and Polaroid sonar source
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I'm looking for a source, probably US based, for the Polaroid 6500 ranging kit and the Vector 2x compass. Does anyone know a source that sells both of the components. I'm trying to save myself two seperate international airmail costs to New Zealand. (...) (27 years ago, 29-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Wall Following
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Chris, I got the same problems with the IR detection. I read somewhere that this is a problem when you use IC and multi processes. The solution could be a "hog_processor()" statement in the IR routine. My question to you is. How will you solve the (...) (27 years ago, 29-Mar-98, to lugnet.robotics.handyboard)
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| | using 7.2v battery with HB
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this actually should be fine. the characteristic of nicads is to have a fairly level output voltage as they discharge, and then drop off sharply when the power's all gone. so it should be no problem. fred (27 years ago, 29-Mar-98, to lugnet.robotics.handyboard)
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| | Re: 7.2V vs 8.4V (fwd)
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Wait! Sorry, I was confused! I thought the HB originally battery was 7.2V. Silly me. :-/ Why didn't anyone correct me??? Well, you kinda caused the confusion though. You mean 7.2V vs. 9.6V? or 8.4V vs. 9.6V? ...cuz 9.6V is the original eight 1.2V (...) (27 years ago, 28-Mar-98, to lugnet.robotics.handyboard)
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| | Re: 68HC11 register locations?
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(...) The correct actual addresses are indeed all in the $10xx range. When you index off either the X or Y register, the offset value is only 8 bits, or 0 to $FF. This is why you're getting the warning messages, the high order $1000 is being (...) (27 years ago, 28-Mar-98, to lugnet.robotics.handyboard)
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| | Re: h-bridge
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Wirz Electronics has 3 different types in kits (URL) dealt with them and I received good service from them. (...) (27 years ago, 28-Mar-98, to lugnet.robotics.handyboard)
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| | Re: 7.2V vs 8.4V
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I'm currently using a 12V NiCad on mine with no problems. (...) (27 years ago, 28-Mar-98, to lugnet.robotics.handyboard)
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| | Info about Robostore H-bridges
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Hello, I have just ordered 2 h-bridges from Robotstore I haven't received them yet but here are the informations they sent me about one of this H-Bridges; It may help... François G. (...) (27 years ago, 28-Mar-98, to lugnet.robotics.handyboard)
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| | Re: 7.2V vs 8.4V
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You mean 8.4V. Yes. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art ---...--- (...) (27 years ago, 27-Mar-98, to lugnet.robotics.handyboard)
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| | 7.2V vs 8.4V
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Is it possible that I use 7.2V battary for handy board? BK (27 years ago, 27-Mar-98, to lugnet.robotics.handyboard)
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| | Re: h-bridge
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Richard: I have a plethora of h-birdge circuit boards based on the L298 motor controller. ( My home company makes them, and I would be pleased to sell you the naked board or a kit with all the parts ) If you are interested in pricing, please conact (...) (27 years ago, 27-Mar-98, to lugnet.robotics.handyboard)
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| | 68HC11 register locations?
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I'm writing an assembly routine under IC on the Handy Board, but I'm getting a little confused about the memory locations of the 68HC11 registers. The Motorola manual shows that the registers associated with the input and output timers are in the (...) (27 years ago, 27-Mar-98, to lugnet.robotics.handyboard)
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| | Ram peripheral cont.
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Well, I put together something that works, and I now have 128k extra RAM via the SPI, but I have a question about the ram chip... It is supplied by the +5v that is on the SPI port right now. The chip gets a fairly hot after about 20min of having (...) (27 years ago, 27-Mar-98, to lugnet.robotics.handyboard)
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| | H-Bridges for sale
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: multipart/alternative; boundary="----=_Next....D24474E0" Content-Length: 1521 2. Content-Type: application/octet-stream; name="Mondo-tronics' Robot Store --- Robots Kits, Muscle Wires, SMA's, (...) (27 years ago, 27-Mar-98, to lugnet.robotics.handyboard)
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| | h-bridge
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I was just wondering if anyone out there has just like a plethora of preasssembled h-bridge circuit boards. Im running out of time on my project and dont have time to learn how to build one. I'de pay for it and shipping of course... -Richard (27 years ago, 27-Mar-98, to lugnet.robotics.handyboard)
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| | KOREAN MANUFACTURERS VISIT HONG KONG
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We are proud to invite you on April 3, 1998 to exhibit various famous commodities manufactured in Korea. For Full Details, please reply now with your Name, Company Name, Phone, & Fax numbers. mailto:sndreply@netv...EXHIBITION (27 years ago, 27-Mar-98, to lugnet.robotics.handyboard)
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| | Sonar HELP!
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Anyone, Hi, I've hooked up a Polaroid 6500 sonar to my HandyBoard; following the specifications in from the Hardware section in the Handyboard homepage. I've also downloaded the sonar.c file and downloaded onto the handyboard. Now here's the (...) (27 years ago, 26-Mar-98, to lugnet.robotics.handyboard)
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| | Artificial Intelligence Wars
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I recently found a game which may interest some of you. You program your robot using a simple Basic-like language and then let it loose against other robots (only five allowed in the shareware version). I haven't played it much yet but for the (...) (27 years ago, 26-Mar-98, to lugnet.robotics.handyboard)
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| | Re: ir-transmitter
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I also have AOL cd wall paper and for awhile even had an AOL CDROM coffee table. Ahh..the wonders of duct tape. (...) (27 years ago, 26-Mar-98, to lugnet.robotics.handyboard)
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| | Re: ir-transmitter
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Finally, a good use for those AOL cd's. I wondered what to do with em... KLM (...) K.L. McKinnon klmckin@magmacom.com (27 years ago, 25-Mar-98, to lugnet.robotics.handyboard)
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| | Bend Sensors Supplier
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Greetings! I responded privately to the person who had initally asked for this. SInce other people also seem interested, here is the ordering information for bend sensors. Images Company PO Box 140742 Staten Island, NY 10314 Phone: (718) 698-8305 (...) (27 years ago, 25-Mar-98, to lugnet.robotics.handyboard)
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| | Rug Warrior Pro download
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Hello everybody on the list, I have a problem that I need help with. The University bought two Rug Warrior Pro kits for me to play with this year. I have been able to sort the sometimes odd behaviour of Interactive C. Using IC 3.1 or 3.2 I cam (...) (27 years ago, 25-Mar-98, to lugnet.robotics.handyboard)
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| | RE: Low battery detection
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(...) ===...=== (...) divider (...) about (...) point. (...) input (...) bat (...) ===...=== (...) ===...=== Hi Jaron, I took the PCB off the battery case, and connected a wire to the +ve terminal of the battery pack. Then I connected two resistors (...) (27 years ago, 25-Mar-98, to lugnet.robotics.handyboard)
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| | Bend Sensors
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Hi, After alot of replies to my wall following problem, loads of people have suggested bend sensors. Although I have considered these, I do not know where to get them in the UK, or any companies that ship them in the US. Does anyone know of any (...) (27 years ago, 25-Mar-98, to lugnet.robotics.handyboard)
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| | Re: ir-transmitter
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At 07:48 PM 3/24/98 -0800, Richard wrote: <snip> (...) Aluminum foil will stop everything bigger than x-rays (and that includes IR). A CD looks highly reflective, but it probably refracts and reflects a lot of energy, too. I realize they don't send (...) (27 years ago, 25-Mar-98, to lugnet.robotics.handyboard)
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| | ir-transmitter
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I was wondering if anyone has used IR transmission in their programs and if so, do you have a bit of simple sample code i could take a look at and if you knew variable ranges or anything. Also..does anyone know a common household material that will (...) (27 years ago, 25-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Wall Following
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I wrote a similar type scenario using a PIC (pre handyboard user)... The trick I found was not to rely on a single return, but multiple. That is, use a counter, to count the number of hits. Use 64 as a base number, count down for each hit, up for a (...) (27 years ago, 25-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Wall Following
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(...) Correction: the problem has been the *bane* of your life--not the bain. I'm the bain of everyone's life. (...) The best solution to the problem that I've seen is in the 6.270 Robot Builder's Guide, which can be downloaded off of the documents (...) (27 years ago, 25-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Wall Following
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<snip> My aim in this project is to build a robot from a Fischertechnik kit, and control it with a 6.270 board, with the aim being firstly to wall follow, and secondly to build a Self-Organising Neural Network representation of the environment. (...) (27 years ago, 24-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Help reading pulsewidth. Thanks.
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Thanks All, With the help you provided I think PipeBot will be a success. It is about to go on it's first test sortie under the house with an umbilical and tether. The umbilical is tied to three of the digital inputs so I can take over control if (...) (27 years ago, 24-Mar-98, to lugnet.robotics.handyboard)
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| | Wall Following
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Hi All, A major problem, that has been the bain of my life for the last 3 months. I am a third year undergraduate at the University of Sheffield, England, and for my dissertation I am undertaking a project entitled Autonomous Mobile Robotics. My aim (...) (27 years ago, 24-Mar-98, to lugnet.robotics.handyboard)
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| | Extending the HB memory... I know, I know...
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I couldn't sleep so I thought I would make some use of my insomnia. Several people have asked if the HB's memory can be extended, and usually the answer is no, not if you want to run IC. I have been taking a break from my navigation systems, and (...) (27 years ago, 24-Mar-98, to lugnet.robotics.handyboard)
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| | Re: IR-DATA
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(...) The cool thing is that you don't have to reset it; it resets itself automatically. When you call the function ir_data( 0 ), it returns the last IR signal received, or zero if nothing has been received since the last time you called it. --Will (...) (27 years ago, 24-Mar-98, to lugnet.robotics.handyboard)
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| | Assembly language routines for Printing
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Hello All, I am attempting to display characters on the Handy Board screen, using pure assembly. I know the routine needs to be copied to internal RAM, put in single chip mode, then activate the display - as stated by the hardware reference manual. (...) (27 years ago, 24-Mar-98, to lugnet.robotics.handyboard)
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| | IR-DATA
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This must seem really elementary to everyone, but inside of my program, how do i reset the value of the ir_data? I've been trying everything in the handyboard technical references but it gives me either a syntax error or Cannot assign type <pointer (...) (27 years ago, 24-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Help reading pulsewidth.
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(...) Handy Boarders: I cannot resist putting in a couple of plugs here for two good related resources: 1) The 68HC11 Microcontroller by Joseph Greenfield. This comprehensive book has a very nice section on reading/writing to I/O ports using timer (...) (27 years ago, 23-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Help reading pulsewidth. Duh!
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After sutdying the schmatics for an hour, I got up to get something to drink. When I came back I noticed that digital 1 is connected directly to the IC 1 input line and digital 2 goes to IC2 via a pullup resistor. It seems that the answer was right (...) (27 years ago, 23-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Help reading pulsewidth.
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(...) <snip> Sure. Use an oscilloscope. It seems to me that if you're looking to hook up the receiver to the HB, couldn't you instead just run the receiver output through a capacitor to smooth it out (and maybe a resistor to scale the voltage) and (...) (27 years ago, 23-Mar-98, to lugnet.robotics.handyboard)
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| | Re: handyboard and palmpilot
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yeah, I know what you mean... I have a TI-83 graphing calculator (www.ti.com) and have been thinking the same thing. Check up in your reference manual to see if it has anything on its protocols. My TI calculator uses an easy send and recieve (...) (27 years ago, 23-Mar-98, to lugnet.robotics.handyboard)
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| | Help reading pulsewidth.
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Hi all. Is there a way for me to read the pulsewidth comming out of a RC receiver? What I'm trying to do is to have an onboard Futaba R/C receiver just in case my bot gets into trouble that it can't get out of on it's own. I want to use my HB (...) (27 years ago, 23-Mar-98, to lugnet.robotics.handyboard)
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| | KOREAN MANUFACTURERS VISIT HONG KONG
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We are proud to invite you on April 3, 1998 to exhibit various famous commodities manufactured in Korea. For Full Details, please reply now with your Name, Company Name, Phone, & Fax numbers. mailto:mrkg@hkstar.c...EXHIBITION (27 years ago, 22-Mar-98, to lugnet.robotics.handyboard)
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| | BEAM ETC. ROBOTS
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I've just been looking into BEAM robotics recently and it is very, very interesting indeed. Mark Tilden's claims may be hard to believe and it seems counter-intuitive, but I think he has his head screwed on right and I definitely reckon that the (...) (27 years ago, 22-Mar-98, to lugnet.robotics.handyboard)
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| | KOREAN MANUFACTURERS VISIT HONG KONG
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We are proud to invite you on April 3, 1998 to exhibit various famous commodities manufactured in Korea. For Full Details, please reply now with your Name, Company Name, Phone, & Fax numbers. mailto:mrkg@hkstar.c...EXHIBITION (27 years ago, 22-Mar-98, to lugnet.robotics.handyboard)
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