 | | Re: Handyboard low voltage motor control
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Well, I went with separate h-bridge to maintain PWM and it turns out that even though the motors are geared down, they still don't have enough torque to haul around all the batteries. Looks like I'll stick with 9v motors... Thanks for the (...) (26 years ago, 20-Oct-99, to lugnet.robotics.handyboard)
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| | Re: CyberMaster
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Laurentino Martins skrev i meddelandet <4.1.19991020110007....est.pt>... [...] (...) [...] Don't forget that you can use homebrew sensors on the CM too, as long as it is passive, and generates a variable resistance. I have used a LDR (Light (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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May I pose a question for anyone who is in receipt of one of the new "Wot no RCX power connector?" RCX's. Have you opened it up to see if they changed the board layout? If they haven't, then it may be possible to populate the site with the (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | Re: Palm Pilot Control
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Clint Rutkas <lego-robotics@crynwr.com> wrote in message news:19991020043938....ail.com... I was considering buying a Handspring Visor (A palm Pilot clone, kinda) and I remembered about the JavaOne Conference with the Palm Pilot controlling the RCX (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | Re: Palm Pilot Control
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Hey why use the palm pilot? You could use the color gameboy :) I mean it has a IR port on the top. The only problem is the fact that it uses cartridges :( If anyone can make a cartridge, then there is (or at least used to be) a section on (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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(...) I thought since my scanner still is on that these 2 pics might be usefull - but I believe disappointing too :( (URL) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | Need Balls!
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I am coaching a team in the FLL contest. I need a supply of those 5 or 6 nub diameter foam balls -- at least 30. Does anyone have an idea of a source? Is there any similar thing that comes from Nerf? How many balls come with the RoboSports expansion (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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In case anyone needs them, scans of the 1.0 RCX boards are at (URL) . -----Original Message----- From: Jesper Kjaer <jesperkj@vip.cybercity.dk> To: lego-robotics@crynwr.com <lego-robotics@crynwr.com> Date: Wednesday, October 20, 1999 4:53 PM (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | RE: Wot no RCX power connector?
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It looks like they have changed the boards fairly significantly. Many parts substitutions -- notable the capacitor farm looks like it has been replaced by a battery backup capacitor. The overall parts count seems to be reduced in more places than (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | RE: Palm Pilot Control
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(...) Cool! This is what I origianlly designed pbFORTH fro, so you could upload source prom your PalmPilot via the Serial interface to the IR tower... There's even an ANSI forth for the PalmPilot for testing code!!! I for one would LOVE to see this (...) (26 years ago, 20-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RE: Wot no RCX power connector?
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(...) Hmmm, see those big hols at the bottom of the board? Add the three little holes above those? And the big cap in there? I'll bet we could solder a power connector in there if we had to. It almost looks like the holes are for a different kind of (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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(...) Nice :) Could the old RCX beep? - I can't find the speaker on the old board.. regards Jesper (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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I was wondering about the speaker as well. The old RCX definitely can beep, and make a whole host of other sounds. Not being an electronics engineer, I'm was uncertain of my ability to identify the speaker on the 1.0 board. It's not the thing that's (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | RE: Palm Pilot Control
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Yello... this is my first post. I program the GBC. I actually have developed some code to interface to the Mindstorms. See my websites: www.gbdev.org www.gbdev.org/dpstuff If anyone needs/wants me to test anything, I'd be glad too. (If you know C, (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | Re: Wot no RCX power connector?
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(...) It's hidden under the LCD. -Kekoa (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | Re: Palm Pilot Control
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Though it is not nearly as versatile as programing your own RCX/Palm communication interface, there is a program for the Palm (with IR) called OmniRemote. It will let you control the RCX with the Palm TODAY so you can see if you like the idea. I (...) (26 years ago, 20-Oct-99, to lugnet.robotics)
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| | for loop stack overflow
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THis may be a dumb question on my part, but we are getting stack overflows on for loops such as for(int i = 0;i<1000;i++){...} when using values over 100 or so. Is this an 8bit counter thing or something else? Thanks, Owen Popplestone (26 years ago, 20-Oct-99, to lugnet.robotics.handyboard)
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| | Re: Position Finding/Mapping Update
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I have now constructed the robot and am beginning to program it. I have no way of getting pictures(yet), so I will get them when I can. If you want more information on the design of the robot, email me at gombos@ne.infi.net Andy (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | RE: Wot no RCX power connector?
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Doug Wrote: (...) SNIP (...) SNIP I was thinking about this last night. It would be very easy to build a dummy battery, using a 7809 voltage regulator, diode bridge on the input, and a shell to put it in. My stumbling block last night was finding (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: Please I need help!
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(...) I saw a contributed design a while back (on the HB web site, I think) of a multiplexer for running multiple Polaroid transducers off of one Polaroid ranging module. It involved the use of a few transistors and such. The idea was to use extra (...) (26 years ago, 20-Oct-99, to lugnet.robotics.handyboard)
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| | Encoder IO board
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Hi everybody I have an application where I need to read 4 encoders, I am looking for an accurate encoder reading IO board which can be connected to an IBM PC. I am also looking for the rotary encoders for that. Please if you can help me find the IO (...) (26 years ago, 21-Oct-99, to lugnet.robotics.handyboard)
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| | Re: for loop stack overflow
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Owen, IC integers are signed 16-bit values ... - Nick - (...) (26 years ago, 21-Oct-99, to lugnet.robotics.handyboard)
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| | Re: for loop stack overflow
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owen, what's inside the loop. i don't see any probl with the for loop itself. fred In your message you said: (...) (26 years ago, 21-Oct-99, to lugnet.robotics.handyboard)
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| | LEGO commercial on TV
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I saw a LEGO MindStorms commercial on TV. I think I saw it either on MTV. The commercial has the Intel inside feel to it. Kinda hip, with bouncy music, and a bunch of LEGO robots dancing around. I hope they continue spending some money on (...) (26 years ago, 21-Oct-99, to lugnet.general, lugnet.robotics)
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| | minfest and pyroelectric sensor
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Hi, For those of you who are going to Mindfest this weekend, does anybody want to see the pyroelectric sensor interface I've made for the RCX? I haven't had the time to make a robot for the sensor, and probably won't before Mindfest is over. It is (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: Dr Dobbs Journal planning segment on RCX programming
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(...) A co-worker just lent me his new copy of Dr. Dobbs Journal (November 1999) which contains the article by Markus Noga called Designing the LegOS Multitasking Operating System. Haven't had the time to read it yet, but I thought I'd mention that (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: Dr Dobbs Journal planning segment on RCX programming
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Anyone have any idea when that'll be online? I'm not real familiar with DDJ's online policies, though I know they have an extensive online collection. -Luis (...) ###...### Profanity is the one language that all programmers understand. -Anonymous (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: Dr Dobbs Journal planning segment on RCX programming
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(...) It doesn't seem to be up there yet, although I didn't have much patience with their web site. (It's (URL) in case you want to try for yourself.) I tried to search for "Lego" and it told me it didn't know what to do with the "L". I'll tell you (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: RIS in Elem Eduction Florida
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i dont know much about florida geography, but there is a tampa bay home schooling group that uses the RCX. go to (URL) and click on Partners. There are also links from that site to K-5 teachers that have used LEGO. Terry Green from Lincoln, MA has (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: Robot lab
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Yes I would recommend it for young children. So far the youngest ROBOLAB programmer on record is 4 years old (or maybe 3). There are many things in the new ROBOLAB 2.0 (out soon) such as scientific data graphing and analysis [see the pictures in the (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: Need Balls!
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Oh man... I'm coaching a team too. I didn't realize that we were going to have to find our own balls! :) -Ben (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: minfest and pyroelectric sensor
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(...) Henry, I'd love to see your pyroelectric sensor interface. See you there. Mario (URL) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | RE: Wot no RCX power connector?
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(...) You could get a battery adaptor, that is, a device for putting AAA batteries where AA batteries should go. They're available easily here in the UK - Maplins for example. The only irritation I see is that you'll need 6 of them; 5 of which will (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Serializing tasks
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Hi, I'm writing a Visual C++ program to control simultaneously 2 RCX (using Spirit.ocx). I'd need to know when a task is ended to start the download of a new task (I'd need a kind of TaskDone event). Is there a way to do this? Does anybody have (...) (26 years ago, 21-Oct-99, to lugnet.robotics.rcx)
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| | RE: Wot no RCX power connector?
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(...) Ah, that explains those people talking about easily wiping the memory by pulling the AC adapter out - the old RCX lost everything immediately, right? The new one claims to (and seems to, but I haven't timed it) retain its memory for up to a (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: LEGO commercial on TV
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There is one on in Sydney now, with a lego robot, kinda like a bull-dozer, pushing all the dinner plates off a dinner table. Pretty funny.... I read about this stuff in New Scientist (a magazine) first. I was sold instantly :) It seems that they are (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Re: CyberMaster
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At 20:11 20-10-1999 Wednesday , Anders Isaksson wrote: [...] (...) Yes, that's why they are not called Rotation Sensors, they are called Tachometers and work like the counter in your car. They count *distance* and they are very in it, because it's (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | sony ir function
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I would like to know why the sony ir_data() only display 8 bit number instead of the 12 or 13 bit IR message? Does the number represent data only instead of the address or device? Does anybody knows how I could make the handyboard display the (...) (26 years ago, 21-Oct-99, to lugnet.robotics.handyboard)
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| | RE: Wot no RCX power connector?
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(...) It beeps just before it runs out of juice - sadly my batteries keep running low when the RCX is in off mode. I'm right now working on making a set of dummy batteries/internal 9v AC connection. The bottom end of the RCX would easily allow a (...) (26 years ago, 21-Oct-99, to lugnet.robotics)
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| | Expansion board - SPI
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Hi ... If I fit an expansion board will I lose access to the SPI port ? ... Richard Spooner (26 years ago, 21-Oct-99, to lugnet.robotics.handyboard)
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