 | | Re: Help me plan for Mindfest.
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The Green Line runs real, honest-to-goodness trolleys. They are quiet and fun. One of the sad developments of the last few years has been the disuse of the trolleys in the favor of buses. (For that matter, I now drive a daily 20-minute commute from (...) (26 years ago, 15-Oct-99, to lugnet.robotics)
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| | Re: Help me plan for Mindfest.
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(...) Well, I WILL admit I had a mockup of a green line car partially completed but I just could not get a center pivot that looked good from the outside, worked, and would at least allow a minifig (turned sideways so he was only 1 stud wide) to (...) (26 years ago, 15-Oct-99, to lugnet.loc.us.ma.bos, lugnet.robotics, lugnet.robotics.events, lugnet.org.us, lugnet.trains)
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| | Re: Flex Cables (Does anyone have the 8485 CCII)
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(...) Happened to be carrying out a parts inventory of my #8485 CC (*not* CCII) which recently arrived from DYA France. Here are the actual measurements of the flex cables - overall lengths followed by the lengths between the notches, in (...) (26 years ago, 16-Oct-99, to lugnet.robotics)
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| | Re: Help me plan for Mindfest.
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Eric Kingsley <kingsley@nelug.nospam.org> wrote in message news:FJnF0x.rn@lugnet.com... (...) Many thanks Eric. You can bet I will have a folded up copy of those instructions in my pocket Thursday night. Mike G. (26 years ago, 16-Oct-99, to lugnet.loc.us.ma.bos, lugnet.robotics, lugnet.robotics.events, lugnet.org.us)
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| | The Unofficial Guide to LEGO MINDSTORMS Robots
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I'm pleased to announce that my book has been printed and is now in stock in our warehouse. It should be showing up in your favorite bookstores soon. The entire book will be serialized online. Currently the Preface and chapters 1 and 2 are online (...) (26 years ago, 16-Oct-99, to lugnet.robotics)
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| | Re: The Unofficial Guide to LEGO MINDSTORMS Robots
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An Oreilly book for Mindstorms??! Cool! Hey, who decides what animal goes on the cover? The author(s)? The publisher? KL (...) (26 years ago, 16-Oct-99, to lugnet.robotics)
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| | Re: Flex Cables (Does anyone have the 8485 CCII)
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C S Soh wrote in message <3807D69E.34C3F7E3@s...com.sg>... (...) followed by (...) from the (...) I concur! -Rob. (26 years ago, 16-Oct-99, to lugnet.robotics)
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| | UK Suppliers
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Can anyone help me? I'm looking for a UK supplier for the Handyboard, either as a kit or complete. I would also like some advice about how I could integrate the Handyboard into a A-Level physic department. I'm interesting in introducing robotics (...) (26 years ago, 16-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Data acquisition through analog input
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Mr. Han, I think you can try to transmit the data through radio frequency transmitter to the receiver which is connected to the PC. I have tried this but it is digital data and not analog. Thanks, Wil. ----- Original Message ----- From: Chul Hun,Han (...) (26 years ago, 16-Oct-99, to lugnet.robotics.handyboard)
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| |
| | Re: BrainStorm version 1.0 available
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Forwarding to lugnet.robotics.logo from lugnet.robotics.rcx... --Todd (...) (26 years ago, 16-Oct-99, to lugnet.robotics.logo)
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| |
| | Re : stuff (Big motor control)
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The following circuit should provide directional control of a DC motor using two SPDT (Single Pole Double Throw) relays and four diodes, but may not act quick enough for a PWM drive. .--------O---...---. | | | | | O---...---. | | | | | \----/ \----/ (...) (26 years ago, 16-Oct-99, to lugnet.robotics)
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| | Re:Solved?? rotation sensor problem
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On Sep.10,I posted the message regarding rotation-sensor problem. I realized that the first threshold value '0x6fc0' in CURRENT_STATE is too small. Some sensors give raw values around 0x7000. #define CURRENT_STATE (raw<0x6fc0?STATE_0:...STATE_3))) (...) (26 years ago, 17-Oct-99, to lugnet.robotics.rcx.legos)
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| | Control your Lego Mindstorms RCX across the internet using Microsoft NetMeeting
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The WebRemote Device Controller allows you to control devices across a NetMeeting connection... If you have devices to control then you simply run the device controller, add the drivers for your devices and connect to NetMeeting to make the devices (...) (26 years ago, 17-Oct-99, to lugnet.robotics)
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| | AI
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Can we make these things learn? I'm no expert on AI or nothing, but perhaps by making, for example, program 1 write program 2, write to program 3 etc, and use a some kind of a genetic algorithm to determine best output. Or would all this be (...) (26 years ago, 17-Oct-99, to lugnet.robotics)
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| | Interfacing 2 Ultrasonic Modules onto one HB?
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I am trying to interface two Polaroid 6500 ultrasonic ranging modules onto one HB to simplify my project. I know this has been done and it is probably very easy but I am not an electrical engineering expert and cannot figure it out. I have two (...) (26 years ago, 17-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Position Finding/Mapping
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Okay. Here is an update. I decided on a platform like the one on this page. Synchro Drive I have bought and finally recieved all the parts nessesary. It is going to use 2 rotation sensors to measure distance, and the angle of the wheels relative to (...) (26 years ago, 17-Oct-99, to lugnet.robotics)
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| | Re: Interfacing 2 Ultrasonic Modules onto one HB?
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Hello, I also would like to see a example of the sonars and expansion board hook-up. I also have a vector 2x compass module that was connected and working before the expansion board was added. Is it possible to connect the sonar and compass to the (...) (26 years ago, 17-Oct-99, to lugnet.robotics.handyboard)
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| | Re: !!! Laser attachments for Mindstorms !!!
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Are you talking about *real* lasers that can cut things? Or just one of those LED pointers? --Tobias (...) (26 years ago, 17-Oct-99, to lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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Tobias Möller <tobias.moller@telia.com> wrote in message news:FJr4ut.Ez8@lugnet.com... (...) considering that a cutting laser starts around $290,000, and requires much more room than 2 Lego bricks, I would venture to guess that it is a laser (...) (26 years ago, 17-Oct-99, to lugnet.robotics)
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| | Re: Upcoming _Star Wars_ Mindstorms and Technics Releases
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(...) But the R2-D2 set (9748 Droid Development Kit) -is- a MindStorms set. It's just not an RCX-based MindStorms set. (LEGO MINDSTORMS is a whole division of TLG and a whole product line. The RCX is just one brick in a series.) MINDSTORMS != RCX (...) (26 years ago, 17-Oct-99, to lugnet.robotics)
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| | Documentation
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Hi all, Can anybody out there tell me some URL to / information that can be helpful to make an Operating system for MindStorms RCX? Plz reply to me personally on my email.I prefer to receive messages here rather at Newsgroup! Thankx Imad (26 years ago, 17-Oct-99, to lugnet.robotics)
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| | Re: Upcoming _Star Wars_ Mindstorms and Technics Releases
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(...) Yeah, actually, that was kinda my point; I just picked a bad example. (26 years ago, 17-Oct-99, to lugnet.robotics)
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| |
| | RIS 1.5 Upgrade in Canada?
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Anyone seen the RIS 1.5 upgrade lit for sale in Canada yet? Will it be available by retail or will I only be able to get it at www.legoworldshop.com (not available there until Oct 22) Thx... (26 years ago, 17-Oct-99, to lugnet.robotics)
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| | FW: Documentation
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(...) No, I've never heard of anyone doing something so amazing. You might want to check your local bookstore, I hear there's an O'Reilly book on Mindstorms, but it's a secret and I'm not suupposed to tell anyone. There might even be a fire (...) (26 years ago, 17-Oct-99, to lugnet.robotics)
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| | RCX Firmware and SP
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Hi All, After a very frustrating weekend of fiddling with pbFORTH, I caved and asked Kekoa to help with a problem I was having with read_sensor() and pbFORTH. The problem we (mostly he) unearthed has to do with the SP and RCX firmware routines, so I (...) (26 years ago, 17-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.pbforth)
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| | Re: !!! Laser attachments for Mindstorms !!!
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*Real* lasers don't even look impressive. It is pracitaclly impossible to get a laser in the visable wavelengths to cut stuff. Usually UV lasers are used for this purpose. But anyway... in Oz, proper laser pointers are about $60. You can get really (...) (26 years ago, 17-Oct-99, to lugnet.robotics)
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| |
| | legOS 0.2.0 released
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Hello, legOS 0.2.0 is out. If you like to program your Mindstorms in C, or if you would like to try, it has become better than ever. Dynamic linking and program loading are fully supported now, as well as unreliable LNP datagram networking. Lots of (...) (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: legOS 0.2.0 released
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Well, this is a bad week to say the least, but I hope to have rudimentary HOWTO stuff for 0.2.0 within two weeks. Thanks for everything, Markus! Luis (...) ###...### Profanity is the one language that all programmers understand. -Anonymous ###...### (26 years ago, 18-Oct-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) really (...) the (...) they (...) I bought 2 for $10 at Osco 2 years ago and they are still working on their 2nd set of batts. (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: RCX Controlled Air Compressor Tester
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(...) Thanks for your patience. Just received 4 of the lil' compressor pumps and have built and tested John Morgan's new double-acting (*correct terminology*) compressor. Unfortunately, the design does not seem to work out in practice. After just a (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: AI
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Tony- AI is a huge field, encompassing a variety of algorithms and techniques. Some of them will work OK on the RCX, others take just too much computation, especially when floating point is required. Also, when you talk about functions and all that, (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: UK Suppliers
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(...) If you're prepared to mail order, you can get all the Handyboard stuff from the Robot Store, Hong Kong,www.robotstorehk.com I've found Patrick Hui to be most helpful and dependable. -- C S Soh (URL) where air is power (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | need a text editor
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What text editors do you guys use to write your IC code? I am on a Windows98 machine and having a real hard time finding one that doesn't add all of the extra formatting. Or is there an option that I am missing that I can turn the formatting off? (...) (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | AI and even more exiciting stuff
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----- Original Message ----- From: Luis Villa <liv@duke.edu> To: ts <ts@zylotech.com.au> Cc: <lugnet.robotics@lugnet.com> Sent: Monday, 18 October 1999 13:09 Subject: Re: AI (...) I am using NQC at the moment. I have just found, and I am downloading (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: AI and even more exiciting stuff
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For a more reasonable copy of the picture (read: downloadable in minutes, not hours) try (URL) note that I actually have access to 7, not just the 5 pictured. -Luis "still looking for interesting suggestions" Villa ###...### Profanity is the one (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: AI and even more exiciting stuff
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(...) Good luck. You'll find links to my HOWTO in various places- feel free to ask if you have problems. (...) Forth is a language for embedded systems, and since it is designed for embedded systems, (i.e., very low level) resembles assembly in some (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Robot navigation
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I have noticed a lot of effort being put into the most ingenius robot platforms designed to increase the accuracy and repeatability of navigation. While many of these designs are a credit to the designer concerned, I can't help but wonder if they (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Star Wars Technic Sets--Correction and More Info
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Just passing this along. This includes a scan of the cover from the Destroyer Droid (Droideka) set. :) (From www.theouterrim.com) US NEWS - Lego update BY: Greg Edwards Pictures have popped up on the Net At this site ((URL) of Technic Battle Droid, (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | RE: AI and even more exiciting stuff
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(...) ACK! Don't they teach fixed point any more? I encourage anyone to post an application where the dynamic range of signed 32 bit values is outside the range of numbers which would be useful to an RCX application! I'm not flaming, I'm just trying (...) (26 years ago, 18-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RE: AI and even more exiciting stuff
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(...) Yes, and no. It is an interpreter, that you can type (or upload) ASCII text to. It then compiles it into an efficient bytecode (really 16 bits) that lets you execute later. It allows for LOTS of variables and best of all, you don't need to be (...) (26 years ago, 18-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Annoying Journalist's Request
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Hi, sorry for interferring with this mailing list. I am a journalist from Germany, working for "Konr@d", a multimedia offspring of "Stern" magazine. Since the Mindstorms product has just been released in Germany, we thought it would be a nice idea (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: Robot navigation
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Try (URL) for a cheap 'n' cheerful approach, go to (URL) click the 'Search inventions' item in the Navbar on the left, and search for Compassbot. Cheers JP (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | RE: AI and even more exiciting stuff
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(...) Well, we are trying to teach AI, not embedded systems :) Towards that end, we've sort of tried to simplify things as much as possible for the kids who are taking the class, since most of them will probably never do an embedded system again. (...) (26 years ago, 18-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Sharp GP2D02 with out expansion board
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Handyboard Community, Has anyone written code for the GP2D02 sensor without the expansion board. I have a group of High school kids that have KISS institute robot kits. This kit comes with a handyboard and LEGO's but no expansion board. Being on a (...) (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: need a text editor
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|
(...) I highly recommend TextPad (www.textpad.com). I use it for writing all my C, Java and HTML code. It allows you complete control over formatting (auto-indent, tabs to spaces, etc.) and a multitude of useful tools, including parenthesis (...) (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | RE: AI and even more exiciting stuff
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|
(...) OK, time to get out the soapbox. If you are trying to teach AI, and are using floating point math, then you probably have really fast computers with floating point processors that are sometimes quicker than equivalent fixed point calcs...... I (...) (26 years ago, 18-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Re: Annoying Journalist's Request
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|
To the list: this morning is a break for me, so I'm going to use it to type this out. Hope no one minds that it gets sent to the "annoying journalist" as well. Here at Duke, we are teaching a class with the mindstorms. Recently, we completed a class (...) (26 years ago, 18-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.legos)
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| | Re: Data acquisition through analog input
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|
Dear Mr. Kalyan, Maybe you can try those RF module from www.Glalab.com Look for their guide on connecting the holtek IC to their RF module. I believe that will help you a lot. Regards, William (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | RE: AI and even more exiciting stuff
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|
(...) Depends exactly what you're teaching in the class, and how much time you have. Spending a session teaching fixed point math may well mean that you have to miss out a useful AI tool. If the students already understand how to call, say (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: Data acquisition through analog input
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|
(...) Do you mean < www.glolab.com >. Victor (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | RE: AI and even more exiciting stuff
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|
(...) Right you are. I guess I wasn't clear headed when I wrote my original response. I wanted to say that engineering (or CS) students shuold learn about fixed point methods at some point in their academic careers. The earlier the better. I was (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: AI and even more exiciting stuff / off-topic
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|
(...) Ah, I almost forgot. I saw an applet somewhere on the University network that translates some higher language, possibly C or a subset of Java, into output suitable for universal turing machines. Not quite the performance king, but interesting. (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: AI and even more exiciting stuff
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|
(...) Here in Karlsruhe, engineering education is 95% math in the first year, and at least 60% in the second. Never mind your major - you're doing maths. Linear algebra, real and complex analysis of multiple variables, numerics, stochastics, (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | communications
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|
Does anyone know where I could get some really good information concerning serial communication for the handyboard. I'm wondering if it's possible to have the handyboard communicate with a PC and vice versa. I'm looking for something wireless but (...) (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Handyboard low voltage motor control
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|
Hi All, Most of you guys seem to want more power to control motors, well, I want to go the other way. I'm looking to drive 1.5v motors with the handyboard. The lowest voltage the L293 can take is 4.5v (Vmin of Vcc1), and that still has my motors (...) (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| |
| | Re: Sharp GP2D02 with out expansion board
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|
Yep, I did. See (URL) Livick (...) (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard low voltage motor control
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How about a resistor in series? Gary Livick (...) (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | RE: AI and even more exiciting stuff
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|
(...) Absolutely. Just not in our class, especially since it is an advanced (jr./sr. year) class which assumes a certain grounding before entry. -Luis ###...### Profanity is the one language that all programmers understand. -Anonymous ###...### (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: AI and even more exiciting stuff
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|
From: "Ralph Hempel" <rhempel@bmts.com> (...) Things are probably turning for the worse in this regard. When I started at my university (Carnegie Mellon) in 1991 in the CS dept you basically got a CS degree by also getting a math degree (and the (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | RE: AI and even more exiciting stuff
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|
Richard, I hope you don't mind me using your quote... <snipped discussion of junior programmer and temp sensor application) (...) Yesss! I am going to tie the moon mission into my panel presentation at Mindfest. Here's a source I used on the Apollo (...) (26 years ago, 18-Oct-99, to lugnet.robotics.rcx.pbforth, lugnet.robotics)
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| | Re: Handyboard low voltage motor control
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|
That'll work, of course, but that also means I'll be dissapating about 8 volts at .5A through the resistor... Gary Livick wrote in message <380B55B1.1C3703C4@p...ll.net>... (...) to (...) still (...) but (...) (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard low voltage motor control
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|
Good point... There is another way. You can build your own h-bridges using mechanical relays and maybe a few diodes. They drop zero volts, which is good. However, you obviously can't PWM the things. If you just want rudimentary speed control, you (...) (26 years ago, 18-Oct-99, to lugnet.robotics.handyboard)
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| |
| | Lego Mindstorms Tower
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|
Anyone know where I can order a replacement IR tower for my Mindstorm? Thanks <G> (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | RE: AI and even more exiciting stuff
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|
32K is a ton of memory for embedded 8 bit code... if you need data storage and processing then that's an entirely different thing -- it could easily make AI difficult. As far as fixed point vs. floating point, I once worked on a project where they (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| |
| | Re: AI
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|
Yes you can, just take a look at some of the projects on my website. CU Bert Lego robots and artificial intelligence (URL) Can we make these things learn? (...) program 1 write program 2, write to program 3 etc, and use a some kind of a genetic (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| |
| | Question:Where do I find a cutaway of a Pnumatic Valve
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I know someone has a web page with some pictures of a LEGO pnumatic valve cut open/opened up. Could someone point me to the URL for it? James Powell (26 years ago, 18-Oct-99, to lugnet.robotics)
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| |
| | Re: Lego Mindstorms Tower
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|
Keith, LEGO Dacta, #979713 US$25 800.362.4308 (URL) - Nick - (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| |
| | RE: AI and even more exiciting stuff
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|
(...) Ummm, respectfully, yes. If the team took days to rework the code when control data tables change, then they were not using tools and methods appropriate to the task at hand. I'm hoping you weren't "them" :-) The algorithm is the same whether (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Announce: NQCIPC -- simple IPC for Not Quite C programs
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I'm proud to announce the release of NQCIPC, a package implementing simple semaphores and messaging for Not Quite C running under MindStorms and Cybermaster. The API is fairly simple, and provides for intertask communication in RCX programs. The (...) (26 years ago, 18-Oct-99, to lugnet.robotics)
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| | Re: Announce: NQCIPC -- simple IPC for Not Quite C programs
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|
[forwarding a copy to the .rcx.nqc newsgroup... --Todd] (...) (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.nqc)
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| |
| | Re: RCX Firmware and SP
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|
(...) [...] Hi Ralph, Could you please explain more about consequences for pbFORTH user? As far as I can see, pbFORTH uses fixed 256-byte stack - does it mean that pbFORTH suffers from this problem too? Thanks Sergey Udovenko (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
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| | Wot no RCX power connector?
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When did this vanish then? All the online information I can find says that the RCX has a 6-12V AC power connector. My one that I bought this weekend doesn't :( (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Data acquisition through analog input
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|
I am sorry, it is www.glolab.com ----- Original Message ----- From: Mulampaka, Kalyan (GEIS, ASI) <Kalyan.Mulampaka@geis.ge.com> To: William Ho <ukho@tm.net.my> Sent: Monday, October 18, 1999 11:10 PM Subject: RE: Data acquisition through analog (...) (26 years ago, 19-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Wot no RCX power connector?
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|
I just bought a second RCX (version 1.5., on sale at K's Merchandise here in Illinois for $155). I just checked--it doesn't have a power connector either! :( Mike Kory Kevin Bracey <kevin.bracey@pacemicro.com> wrote in message (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Wot no RCX power connector?
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RIS for $155!!!!! Is that a special discount limited offer price!!! Limit one per household? The RCX brick lists for $129. So you get all the rest for $26!! JB (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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Does this mean that RIS 1.0s are going to rapidly become *more* valuable than RIS 1.5s?! Stuart PS That seems a very cheap price - I thought they were $210? (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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I just pulled out my receipt. It was $155.97. That's 20% off their normal price. I bought the last one at my store here in Champaign, Illinois. I don't know where the other stores are. If I remember correctly, they had the Droid system for about (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | RE: RCX Firmware and SP
|
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(...) Unfortunately, yes. The current version of pbFORTH allocates a 256 byte stack, but it's JUST above a 256 byte boundary. When you run the test code, everything works, but if your stack depth is around 12 and you run SENSOR_READ, it allocates (...) (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
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| | RE: Wot no RCX power connector?
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(...) My guess is it vanished after they got too many "defective" units back after folks started putting adapters with the wrong voltage on their bricks. Even a wired voltage spike might kill the brick. The battery route is safer from a product (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | RE: Wot no RCX power connector?
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(...) Correct me if I'm wrong, but doesn't that mean that TLG have effectively been lying if they claimed that the RCX unit itself is still the RCX 1.0? It seems like it may be worthwhile complaining (does anyone know an email address for (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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That's terrible! I've found the AC adapter plug to be very useful. We use the AC adapter port primarily to conserve batteries while programming/testing our RCX. I also once tried to avoid having to re-download the firmware and my programs by (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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Did you buy a second RCX, or a second RIS? (The RIS is the big MindStorms set; the RCX is just the "programmable brick." You either got a great price on the RIS {salivating} or a lousy price for the RCX ... --Doug Wilcox -----Original Message----- (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | RE: Wot no RCX power connector?
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(...) It still says "RCX 1.0" on it. It appears identical in all regards to pictures I've seen online, except the end opposite the IR transceiver is totally smooth and blank, and there are two extra studs on top above where the socket was. That end (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | RE: Wot no RCX power connector?
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(...) I'm not sure if its worth complaining about...operationally its still the same product even if you can't plug it into a wall wart. I'm more concerned with any changes to the ROM. Perhaps Kekoa can shed some light on this if someone was to ship (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Mindstorms available in the Netherlands ?
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Is mindstorms available in Europe ? Even more specific in the Netherlands. What does it cost ? Thanks, Jan. (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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Sorry for the imprecision. It was the RIS (the whole kit with the few new pieces). Mike The WordMeister <lego-robotics@crynwr.com> wrote in message news:01bf1a3a$3fad23...ici.net... (...) price (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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What new pieces are there in the RIS 1.5? I don't suppose maybe a second differential gear? No, probably not... Was there anything really glaringly useful? -Andy Lynch Mike Kory wrote in message ... (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: AI and even more exiciting stuff
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Ralph Hempel wrote: [ good rebuttal snipped ] (...) Actually, I went through two years of a systems engineering degree. (before finally dropping out) During that time I had many semesters worth of math and CS... however, not one of them went over (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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(...) I doubt there will be significant changes to the ROM. For starters, if somebody has both an old and a new RCX, try downloading the old firmware into the new RCX. If it works, the ROM interface is the same. If the ROM interface is the same, it (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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(...) Wait a minute... Doesn't the RCX hold its firmware across the auto power down? I thought it did. That being the case, all you'd have to have done was turn it back on, no? -Kekoa (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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No, while the RCX is in an "off" state, the firmware is maintained via a trickle current (something like the CMOS registers in an personal computer) supplied by the batteries. When one removes the batteries, the firmware and any stored programs are (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | RE: AI and even more exiciting stuff
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(...) [snip] (...) I wasn't them... I was involved with the control system algorithm development and analysis. This bunch was definitely not using a tool -- they were doing it all by hand. I'm sure they were not doing it right either because (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | RE: Wot no RCX power connector?
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(...) I've read that the end where the power connector was is "thinner" which is OK since the connector was mounted on the component side and would have added to the hight required. The "smoothing caps" could be eliminated in a battery only design, (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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I've changed batteries often and have never lost anything. I turn the unit off and swap the batteries quickly. Mike (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | RE: AI and even more exiciting stuff
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(...) I've done simulations on spreadsheets and simple scripting languages when it was too much bother to get the C compiler running properly.... (...) Oh Oh, don't tempt me. Cheers, Ralph Hempel - P.Eng ---...--- Check out pbFORTH for LEGO (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | RE: Wot no RCX power connector?
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(...) Hi all - I'm new to this list - why? - I just got my RIS 1.5 last week (RIS 1.0 was never available in Denmark - as far as I know) - someone in RTL asked me for a scan of the new lego's in the RIS 1.5 - so I uploaded a scan here: All bricks: (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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Was that a 1.0 or 1.5? I'm hoping it's just the 1.5's, since there are still 1.0's around. I can't believe there wouldn't be an option for wall power (even with a funky idiot connector to prevent overvoltage). What about models that have large (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | RE: Wot no RCX power connector?
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(...) Actually, there's a ton of space left in the ROM, I wonder if they ADDED anything useful, like a real OS kernel :-) <<<<< I suspect they had to leave it alone, sadly. They have to maintain both forward and backward compatibility, otherwise (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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(...) Interesting enough, I once withdrew the power connector on a unit under full load - sensors, motors, everything on - because the task manager had gone into an endless loop. After duly waiting a couple of seconds, I reinserted the plug. Blue (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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(...) It was a 1.5. I wonder what you get if you order a separate RCX now? I would hope ones with a power connector would still be in stock. (26 years ago, 19-Oct-99, to lugnet.robotics)
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