 | | 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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 | | RE: Wot no RCX power connector?
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(...) I don't think so - it looks the same shape as the pictures of RIS 1.0 RCXs I've seen. I doubt they would change the external shape as it would cause problems with plans in expansion kits etc. I expect there's just a lot of empty space inside. (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | new pieces (was Re: Wot no RCX power connector?)
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From: "Jesper Kjaer" <jesperkj@vip.cybercity.dk> (...) Any idea what the blue brick 4 rows down in the last column is for? It looks very strange. The double yellow connector (3rd column, 12 rows down) is kind of interesting as well. I don't think (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | RE: AI and even more exiciting stuff
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(...) When will it be on Amazon? -Luis "anxiously awaiting Ralph's pearls of wisdom" Villa ###...### Profanity is the one language that all programmers understand. -Anonymous ###...### (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | RE: Wot no RCX power connector?
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(...) HaHaHa - What about the one Dave Baum developed NQC on, and the one you used for LegOS, and the one I used for pbFORTH? I'll bet they would sell as a matched set. I can see it now...... I guess if Kennedy's golf clubs are worth $750,000 these (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | Re: Wot no RCX power connector?
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Thanks very much for posting the scan of the 1.5 bricks. It's helped answer questions we've all had about what "new" stuff would be included. Of course, now we all want to find out exactly what some of them do! I suppose asking for scans of the new (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | Re: new pieces (was Re: Wot no RCX power connector?)
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(...) They use it to connect sensor mountings to the robot chassis in the Constructopedia robots. The chassis and sensor array each have one of those blue things, and they are locked together by the double yellow connector, which can be inserted (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | Re: AI and even more exiciting stuff
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Well, I was about to ask if someone wanted to write up a simple fixed-point tutorial for my web site (it's a little sparse and could use some articles like this). However, I knew 90 people would come out of the woodwork to point me two tutorials (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | IR problem
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Hi, I have tried Max Davies irint.icb, ir.c and test.c files, and I'm having problems, after the file test.c are running, I press STOP, and before I can use the remote, the HB make the beep, and print the data as if data were received, any time I (...) (26 years ago, 17-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: Wot no RCX power connector?
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I wonder what's in the 1.0's with the 1.5 sticker on the front? KL (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | new pieces (was Re: Wot no RCX power connector?)
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(...) I'm not sure if this was in the Contructopedia for the RIS 1.0 - but there is 2 pages at the end that shows how to use it - a final pic is here: (URL) description says: This is a prototype so that the inventorbot can move forward and turn (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | Re: new pieces (was Re: Wot no RCX power connector?)
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Wow! Those look incredibly useful, especially for the mechanically impaired. Can they be bought separately? -Luis (...) ###...### Profanity is the one language that all programmers understand. -Anonymous ###...### (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | RE: new pieces (was Re: Wot no RCX power connector?)
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Thanks for the scan. OK, so we got a slip disk (4th column, 6th item) - very nice. The RDS has one of those, too. So does the Technic motor set. The blue connector (5th column, 5th item) is used in other sets as a quick-connect brick for modules. (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | Re: new pieces (was Re: Wot no RCX power connector?)
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Never mind... to answer my own question, and for those of you who are interested- (...) ###...### Profanity is the one language that all programmers understand. -Anonymous ###...### (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | Re: Wot no RCX power connector?
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(...) It's exactly that - a RIS 1.0 with a sticker on the front. I just got one, and it's the original kit of parts and an RCX with the power connector. The reason for putting stickers on old boxes is to avoid stalling sales from people who really (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | RE: new pieces (was Re: Wot no RCX power connector?)
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(...) A-ha! I was wondering whether any set apart from the motor set would ever have one of those. (Vague thought - did someone say one of the bigger retail Technic sets has one too?) I wonder why don't they sell them in a service pack?! Hmmm... (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | Sharing variables and using expressions (was Re: NQC 2.0 and some math questions
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I have discovered a somewhat non-intuitive feature of NQC (in my version, at least, which is pre-2.0) The statement: var = (20 * var) / 21; gets compiled into the following: MUL var, 20 ; var = var * 20 DIV var, 21 ; var = var / 21 rather than the (...) (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.nqc)
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 | | Re: Wot no RCX power connector?
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I'm certainly glad I picked up two when I did. Without the AC adapter, there's no way I could have setup the webcam at (URL) thing is on 24 hours a day. Oh, and it also has no batteries in it whatsoever, and I haven't had a problem with turning it (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | RE: new pieces (was Re: Wot no RCX power connector?)
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(...) I've uploaded all 4 pages (each around 150 KB): (URL) for the new bricks - well they are in the upgrade kit ;-) - but my best guess is that they might be in some sort of service pack too for next year - the differential is - but the new ones (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | RE: new pieces (was Re: Wot no RCX power connector?)
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These connectors are also available in kits like #8252 Beach Blaster, where they are used to "plug and play" different suspension/wheel configurations. Reasonably stiff for what they are, and I think they would make good attachments for light (as in (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | pbforth questions
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My 15 year old son is into legos big time. He has asked for the Lego robot package. I developed in Forth many years ago and I am just getting back into it with Forth Inc.'s SwiftForth for Windows. I have enjoyed messing about with it but what I am (...) (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
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 | | RCX-enhanced egcs
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Hello, I just posted the final RCX interrupt handling patch for egcs. There is no need for wrappers anymore. Interrupt handlers can be declared like this now: void handler() __attribute__((rcx_interrupt)); void handler() { // do stuff } For a leaf (...) (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.legos)
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 | | 0.2.0a patch
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Hello, apparently I introduced a glitch when adding last-minute support for non-patched standard egcs. This and a broken symlink in the archive prevented dllback from compiling on the host. A patched version of legOS is available on (URL) for the (...) (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.legos)
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 | | Re: Wot no RCX power connector?
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(...) Hah. Mine has a power connector. It's sitting on my desk, light as a feather, with no batteries whatsoever. Now, if I could stop tripping over the DC cord... (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | RILYBOT 4 (was Re: show-me training
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I now have a robot working using the intuitive training principles I described about 6 weeks ago in this thread. This robot will be at Mindfest. Here are the web pages describing what I've done so far: (URL) here is the current NQC program: (URL) (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | Re: new pieces (was Re: Wot no RCX power connector?)
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(...) Yeah, but until LEGO releases a soldier minifig and a leatherman minifig, I'll never be able to model the Village People! Come on, TLG, where are your priorities? (oops, sorry -- only slightly way off-topic.) - Robert Munafo (URL) LEGO: (...) (26 years ago, 19-Oct-99, to lugnet.robotics)
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 | | serial input?
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Is the handyboard capable of serial input (other than for downloading)? How can I do this? Thanks, Keith@spidersoft.org (26 years ago, 19-Oct-99, to lugnet.robotics.handyboard)
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 | | additional pbforth questions
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Does pbforth run under dos or windows on the PC? Does it use blocks or dos/windows file system on the PC? Does it use blocks in RAM on the RCX? If I program directly on the RCX can I upload the programs to the PC for further development? In using (...) (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
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 | | RE: additional pbforth questions
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Hmm, this is the kind of message I should use for FAQ fodder... (...) You can run it either way. The original intent was to use the dumbest tool possible to interact with the RCX. For DOS this is Procomm Plus or some such tool, for Windows its (...) (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
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 | | FW: RCX Firmware and SP
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-----Original Message----- From: Sergey Udovenko [mailto:udovenko@bluewin.ch] Sent: Tuesday, October 19, 1999 5:56 PM To: Ralph Hempel Subject: Re: RCX Firmware and SP Hi Ralph, I'm just yet another hobbyist, so nothing is special about my plans. (...) (26 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
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 | | PSU robot contest Sat Dec 4, 1999
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Hi All, Penn State Abington will host the second annual Robo-TrailBlazers autonomous robot contest on Sat Dec 4, 1999 at 3pm. The contest is open to all students (and even a few non-student types) as participants. (The contest is HandyBoard and (...) (26 years ago, 19-Oct-99, to lugnet.robotics.handyboard)
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 | | Please I need help!
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Hi!, I just asked this question but did not get any help. I need help interfacing two Polaroid 6500's to one HB w/ Expansion Board. This is a project for school and needs to be finished soon that's why I need help. I would really appreciate any help (...) (26 years ago, 19-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: Please I need help!
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Pete, It seems to me that a simple double pole double throw relay could be used to select one or the other module. That way you wouldn't need to tie up any other IC/OC pins. You fire one unit, get the return, then switch the relay and fire the other (...) (26 years ago, 19-Oct-99, to lugnet.robotics.handyboard)
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 | | Re: Wot no RCX power connector?
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(...) Another guess - again pure speculation - is tha having an external adapter option made certification more difficult in one of the non-U.S. markets. I believe 1.5, aside from being an update for U.S., is also going to become the (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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 | | Re: Wot no RCX power connector?
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Yes, they left it alone... The 1.5 RCX ROM has the same version number as the 1.0 RCX ROM. The firmware file shipped on the 1.5 CD is identical to the 1.0 firmware. Dave Baum (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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 | | Re: Sharing variables and using expressions (was Re: NQC 2.0 and some math questions
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The optimization was intentional (and quite a lot of work, actually). I know it breaks with multiple tasks, but I was more concerned with keeping the variable pool from being cluttered with temporaries. With only 32 vars to use, its quite easy to (...) (26 years ago, 20-Oct-99, to lugnet.robotics.rcx.nqc)
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 | | Compile Error: extra bytes in stack.
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I got this error: Compiler error! 47 extra bytes left on board stack and I read in the technical manuel that all compiler errors must be fixed before I can download a file to the board. How do I fix this error? I have consulted previous postings on (...) (26 years ago, 20-Oct-99, to lugnet.robotics.handyboard)
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 | | RE: Wot no RCX power connector?
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The Scout (from the Robotics Discovery System) doesn't have a power connector either. It is quite possible that the decision to remove the power connector from Mindstorms products was made during the development of the Scout. There was only a single (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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 | | Re: Sharing variables and using expressions (was Re: NQC 2.0 and some math questions
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(...) I appreciate this -- that's what the "Not Quite" is all about. As long as you explain things well, I think this kind of compromise is the right way. (26 years ago, 20-Oct-99, to lugnet.robotics.rcx.nqc)
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 | | Re: Wot no RCX power connector?
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(...) Besides the RCX, I've two other sets that can be run off an external ac adapter - #8485 Technic Control Center and DACTA #9751 Control Lab Interface. Both of them come with an external adapter. The Technic Control Center can also be run off (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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 | | Re: new pieces (was Re: Wot no RCX power connector?)
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(...) -Kekoa (26 years ago, 20-Oct-99, to lugnet.robotics)
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