 | | Some UI questions about Robolab
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Hi All, I have a couple of quick questions. 1. The help in Robolab says I can select a program from the programs list and press F10 to delete it. Every time I do this I get a message saying that the folder is locked. I've tried everything I can (...) (23 years ago, 1-Oct-02, to lugnet.robotics.rcx.robolab)
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| | New version of Robot Controller
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Version 1.6b2 of Robot Controller is available, either from Version Tracker, or from my new web page: (URL) it out, and tell me what you think! In case you don't know, Robot Controller is a MacOS X application for controlling and testing RCX robots (...) (23 years ago, 30-Sep-02, to lugnet.robotics.rcx.nqc)
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| | HB Sun tracking system
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I am just about finished assembling with HB. I want to build a system to track the sun. I have some ideas on how, but I am little rusty both in hardware and software. I asking any of you have something to help me in my project. I really appreciated. (...) (23 years ago, 30-Sep-02, to lugnet.robotics.handyboard)
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| | RC Motors
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A couple people have pointed out how the new motors on the RC Buggy seem to be very fast. So with the Workshop 3D challenge coming up, I wanted to see how they compare to the Mindstorms mini-motors. To test them, I started by hooking a rotation (...) (23 years ago, 30-Sep-02, to lugnet.robotics)
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| | Re: Instructions for building DJGPP H8300 cross compiler
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Ed, This is GREAT to see. Will this work with the latest version of BrickOS? Steve ----- Original Message ----- From: "Ed Manlove" <emanlove@ieee.org> Date: Sun, 29 Sep 2002 14:06:53 GMT To: lugnet.robotics.rcx....lugnet.com Subject: Instructions (...) (23 years ago, 30-Sep-02, to lugnet.robotics.rcx.legos)
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| | Re: Use built-in Ir instead of IR-Tower?
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(...) The IR protocol is slightly different. While IRDA only sends short pulses the Lego Tower sends a signal for the whole time slot. It is very unlikely that one can get them work together. Jochen (23 years ago, 30-Sep-02, to lugnet.robotics.rcx.legos)
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| | Spybot to rcx and rcx to spybot
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Hello I am just starting with my first Spybot and want to know how can I use a Spybot to controll an rcx and even better how can I control an spybot with the rcx. I know this has been discussed al lot here but its nearly impossible to filter all (...) (23 years ago, 30-Sep-02, to lugnet.robotics.spybotics)
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| | How to find maximum available memory for datalog, power consumption and sensor wire length?
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Hi there, I'm preparing to write a log program to store temperature values in the datalog. After some experimenting and familiarizing with the datalog associated functions I've found the following: Using CreateDatalog(x) with x being a constant and (...) (23 years ago, 30-Sep-02, to lugnet.robotics.rcx.nqc)
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| | Re: 2 rcx's
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What about hooking a sensor port to a sensor port on another RCX? The sensor ports do output power for active sensors, so I imagine this could be detected by the other RCX. I'm just wondering if this would let you set up bi-directional (...) (23 years ago, 29-Sep-02, to lugnet.robotics)
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| | Re: 2 rcx's
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Scott: (...) Yes it has been done. I used this set up to communicate between 2 RCX in a contest where I new many people would use IR and the room would be flooded with the stuff. The original message is here: (...) What I did was just put a lego (...) (23 years ago, 29-Sep-02, to lugnet.robotics)
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| | Use built-in Ir instead of IR-Tower?
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Hi! i have a sub-notebook without any com-ports so i can't use my IR-Tower. But the built in IR is reachable over com5 (btw: i'm working with cygwin). so i changed dll to com5 (export...) but now i get the error(when dll'ing): Error 21: sending (...) (23 years ago, 29-Sep-02, to lugnet.robotics.rcx.legos)
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| | Instructions for building DJGPP H8300 cross compiler
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The following are instructions I am using for building the Hitachi H8300 cross compiler for the DJGPP environment. Please read through the entire message before proceeding. Download the following DJGPP/GNU packages from www.delorie.com or one of its (...) (23 years ago, 29-Sep-02, to lugnet.robotics.rcx.legos)
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| | Re: Need to compare
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The following link may be of some use, it seems an interesteing design for climbing obstacles. (...) (23 years ago, 29-Sep-02, to lugnet.robotics)
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| | Angle sensor
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I have a couple of prototype angle sensors looking for a good home. (URL) simple devices contain a potentiometer and a small series resistor so they vary from 1k - 11k while the input shaft is rotated through approx. 270 degrees. There is a built in (...) (23 years ago, 29-Sep-02, to lugnet.robotics)
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| | FLL Artic Impact Challenge Set
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Since our FIRST LEGO League teams and robotics class is so inspired by this year's challenge, I would like to spend time later on last year's challenge. Does anyone out there have a last year's playing mat, instructions, accessories, etc., that they (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Re: Need to compare
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(...) A straight tri-wheel like that can't climb anything higher than half it's height though. If you are really after something that'll climb TALL steps, then it has to have something high up at the front to grab the top of the step with. Even a (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Re: Need to compare
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Ok, so, the complete description.... It's not really a competition, but a project for students in my university... We have to build a bot with LEGO mindstorms... This bot has to be able to follow a line on a ground made in steel. This line goes (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Re: Need to compare
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(...) Oh - that's a pain. (...) Well, I guess it depends on how rough the terrain in general is. If it's a flat, smooth surface with just one 5cm hole - then practically any vehicle with (say) 6 wheels will drive across it like it wasn't there. (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | 2 rcx's
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What would happen if you took a wire from a sensor port on one rcx and connected it to a motor output on another rcx. Would this be a viable way to communicate with 2 rcx's if they could not be position for IR communication? My thought was that you (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Re: Need to compare
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(...) I like the tri-wheel design. If you make if big enough it shouldn't have any trouble. Something like this (or bigger): (URL)For the step, it begins at 1cm and it will be increased until no véhicule is (...) The advantage of an ODEX design. (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Re: Need to compare
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Thanks, Yes, it's the maximum dimensions... We have already seen the shrimp and we think to build something like that (maybe also with tri-star wheels)... But if somebody find a better solution, because we don't know the comportement of the shrimp (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Re: some more questions about lnp.
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The frequency of the RCX's IR does not change at all: " The RCX uses a 38kHz carrier, which is pretty typical for TV remotes. As for the sampling rate, the RCX runs at 2400 bps, which makes each bit approx 417us " (URL) think the only way you could (...) (23 years ago, 28-Sep-02, to lugnet.robotics.rcx.legos)
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| | Re: Need to compare
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(...) Is that the *initial* dimensions - or the *maximum* dimensions? If it's just one of those things like "the robot must start off in a box no bigger than 30x60x30" - then it can just fold itself up into that space when they are doing the (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Re: Need to compare
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Thank you for your idea... but I forgot to say you that I have restriction for the dimensions... Dimensions : height : 30cm Lenght : 60cm width : 30cm And we can have 620 Euro's... Bye Vincent ----- Original Message ----- From: "Mike Thorn" (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Re: Need to compare
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Vincent, (...) Without knowing the limitations of your resources, I would vote for a legged vehicle. You can make if large enough that even if a leg did go in the hole it wouldn't fall in or get stuck, you could make it with as many legs as you like (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Need to compare
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Hello everybody, For my university, we must construct a bot with LEGO Mindstorms. This bot has to be able to climb a step, to ride above a (little) whole and to have left and right wheels at different height. In fact, he might be able to go (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Re: some more questions about lnp.
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duh... guess i was kinda wrong here.. IR is in reality a frequency defined from A to B. any messages sent within this spectre is said to be IR messages. so in theory sending an IR message closer to A than B from one RCX. and at the same time sending (...) (23 years ago, 28-Sep-02, to lugnet.robotics.rcx.legos)
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| | Re: Watch Dog Timer on the H8 - Working!
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Well, after browsing through the H8 reference another, oh 20 (?), times; and some messing around; it is now working. Basically, I had declared the Control Status Register as an 8 bit value. Since this is a special register (8 bit) that requires a 16 (...) (23 years ago, 28-Sep-02, to lugnet.robotics.rcx)
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| | Re: Following the Line Follower
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(...) Hi Steve, I tried your suggestion to improve on the single-sensor line follower. Well, actually I just used the left light sensor on my 2-sensor bot and a standard single-sensor line following program. Like you said, the bot is now able to (...) (23 years ago, 28-Sep-02, to lugnet.robotics)
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| | Watch Dog Timer on the H8
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Has anyone been able to make use of the Watch Dog Timer on the RCX? The H8 documentation seems to spell out the workings quite well. BrickOS (LegOS) has minimal support (a vector is declared for both NMI and overflow) and pbForth files list the WDT (...) (23 years ago, 27-Sep-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: WebCam & Linux
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Thank you for your response, Jürgen! (...) I believe I also have Linux kernel version 2.4.19 (# kernelversion => 2.4), and I tried to use both xawtv and quickcam-tt's testquickcam app. Both responded with that they were unable to open 'video0' (or (...) (23 years ago, 27-Sep-02, to lugnet.robotics)
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| | absolute reckoning, all lego solution?
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after reading all the posts i did break down and get a spybot: gigamesh so far fairly impressed due to the fiberoptics pieces, the new gears and the idea of a tri-star wheel without a tri-star wheel. but on to my point. the spybotics controllers (...) (23 years ago, 27-Sep-02, to lugnet.robotics)
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| | some more questions about lnp.
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ok, im back again with even more questions. when i created my last program using lnp on an RCX i did a mistake by setting the same port as the one im listening on and the one im sending on. this made me think. what is the reason we use two different (...) (23 years ago, 27-Sep-02, to lugnet.robotics.rcx.legos)
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| | Robotics Education Project
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From the Internet Scout project.. Robotics Education Project (URL) Robotics Education Project is intended to raise children's interest in robotics and promote it as a possible career choice. The Web site highlights many applications of robots, such (...) (23 years ago, 27-Sep-02, to lugnet.robotics)
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| | Re: Following the Line Follower
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It might be worth trying to increase the area that the light sensor is seeing by putting some kind of a lens in front of it. If the sensor could see (say) a roughly circular region 3 centimeters across then numbers you'd read between the 'white' and (...) (23 years ago, 27-Sep-02, to lugnet.robotics)
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| | Update for DJGPP version
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Here is an update for my (slow) progress for creating a DJGPP compatible or port of brickOS. At this time I am solely focused on getting a cross compiler built and putting off other issues (such as tty comms, see (URL) I have tried three methods to (...) (23 years ago, 27-Sep-02, to lugnet.robotics.rcx.legos)
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| | Re: Following the Line Follower
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(...) You can improve the single sensor program considerably by having it go straight when it sees an intermediate value, which is what it would see when it's right on the edge. So, you have two cutoffs, LOW and HIGH. If light value is less than (...) (23 years ago, 27-Sep-02, to lugnet.robotics)
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| | Re: Upgading HB to 64K
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My bad, the link I gave yesterday is to IC4, Randy Sargent's wonderful freeware version of InteractiveC for the Handyboard. The links to the 64k hack to the Handyboard are at the simpleRTJ site, which are ... www.rtjcom.com/6811/hb.html (...) (23 years ago, 27-Sep-02, to lugnet.robotics.handyboard)
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| | Re: Following the Line Follower
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(...) Actually, I've entered the last couple events, but I have not yet made the 2000 mile trip to Seattle! (I'm sure it's farther from Singapore) Last time, I boxed up a couple LEGO robots and shipped them out there. The time before, I just sent a (...) (23 years ago, 27-Sep-02, to lugnet.robotics)
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| | Re: WebCam & Linux
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(...) For me the quickcam-tt-2002-09-09 and qce-ga-0.40c drivers work with the Lego camera and xawtv under Linux 2.4.19. Without dirty tricks, I just followed the README. (...) You should tell us a bit more what you have tried to do (see (URL) (...) (23 years ago, 27-Sep-02, to lugnet.robotics)
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| | Re: Following the Line Follower
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(...) Thanks. I couldn't have done it without those ubiquitous felt pens. (...) The bots used fairly standard programs (written in ROBOLAB). For the single light sensor bot: turn right when it sees bright; turn left when it sees dark. For the bot (...) (23 years ago, 27-Sep-02, to lugnet.robotics)
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| | Re: Following the Line Follower
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(...) Soon as I can make sufficient photocopies of them :-) (23 years ago, 27-Sep-02, to lugnet.robotics)
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| | RE: Following the Line Follower
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The IEEE Region V robot competition features a line following robot problem. Those interested may browse: (...) (23 years ago, 27-Sep-02, to lugnet.robotics)
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| | Re: Upgading HB to 64K
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Peter and all on lugnet.robotics.handyboard, The link Peter gave on Oct 14, 1999 is now dead! The new link is ... www.kipr.org/ic/download Randy Sargent now works for the KISS Institute for Practical Robotics, and has his work on IC3 and IC4 there. (...) (23 years ago, 26-Sep-02, to lugnet.robotics.handyboard)
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| | WebCam & Linux
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Hi! Unfortunately I haven't yet been successful in installing the right kind of driver to use my Logitec Quickcam Express (little ball, the old type) or my Lego cam under Red Hat Linux 7.1 (up2date ;) ). I have tried both the Quickcam-tt-09-09-2002 (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | RE: ir cars
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(...) I haven't yet looked into what control capabilities exist with RCX2. All I've gathered (and I could be way off base) is that it can only mimick the various LEGO IR remote control devices. What I meant was an ability to have one RCX act as a (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | Re: Build Your Own Lego Submersible
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(...) The Monterey Bay Aquarium Gift Shop does mail order with credit card payment. They can be reached at(831) 648-4800, ask for the Gift Shop. -Rob. (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | RE: ir cars
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(...) [...] (...) Well, as I think you know, it's already possible with standard RCX2 firmware to control Manas and SPybotics. :) (...) That looks like another IR LEGO set using the same Manas/Spybotics IR protocol. So, in theory, it will be (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | RE: ir cars
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Do any of the "third party" firmware options for the RCX allow one to control what is sent through the H8 serial port? If so, then it should be possible to use an RCX to send/receive any 38KHz IR signal falling within the bps/baud/processing limits (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | Re: Web controlled Legobots
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Here is one: (URL) it does not use RoboLab. Laura (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | Re: Automatic RCX Battery Recharging
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Yes, the object is to have the RCX robot monitor its own battery charge (something available to the RCX firmware, and lejos, etc..) and then when it is consistently low to drive up to some sort of home made charging station and get a boost. The (...) (23 years ago, 26-Sep-02, to lugnet.robotics.rcx)
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| | Re: Web controlled Legobots
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(...) Hi, Not using RoboLab, but an RCX controlled via web interface... (URL) a boo! Take care. Dave K (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | RE: Following the Line Follower
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This is awesome info! It would be interesting to see the results of following acute angles, zig-zags (with combinations of acute, right, and obtuse angles), line-branching, and wavy-lines leading to zig-zag lines. Any plans to include those as well? (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | RE: ir cars
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(Just back from hollydays =) er.... what IR Cars ? Could you post some links or LEGO #Refs ? If they use the same IR serial protocol as do the MANAS units or Spybotics, then yes. thxs :) mc. (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | Web controlled Legobots
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I am looking for info on how to controlled a Lego Bot project via the internet, using Robolab 2.5. I thought I had seen someone send an email regarding this very same thing, but I don't see it in my archives. Please help!! TIA James C. Jones (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | Re: Following the Line Follower
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Very interesting (and good) work. It may be useful for you to post the program used, because (as you said) it can make a difference in the results. However, I have to disagree with part of the conclusion: "A line follower using a single light sensor (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | Following the Line Follower
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Hi, people I have carried out an investigation into line following, a task that all respectable bots are expected to be able to do. Diagrams often show the idealized zigzag path that the robot is supposed to take when following a line. However, I (...) (23 years ago, 26-Sep-02, to lugnet.robotics)
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| | Re: Build Your Own Lego Submersible
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(...) No. They both put the RCX inside an "Otter Box", and the similarity ends here. Hao-yang Wang (23 years ago, 25-Sep-02, to lugnet.robotics)
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| | Re: Automatic RCX Battery Recharging
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Hello, (...) The only problem with that is that you will have to guarantee a max. voltage of 9 or 10 V at the RCX. I don't think usual charging circuits have a voltage limit that makes sense ... Greetings Horst (23 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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| | some measurements in lnp, please comment!
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hi all, i have made some measurements with lnp in legOS 0.2.4 under ideal conditions (dark room with minimal load on PC and RCX) and found that sending a 10 byte message with lnp_addressing_write averages on about 0.06136 seconds (+/- 10 ms for time (...) (23 years ago, 25-Sep-02, to lugnet.robotics.rcx.legos)
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| | Re: remote program activation
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Hello Jürgen (...) Thanks, I'll check that out. (...) For the same reason as lejos allows to link/upload up to 5 different programs and the rcx has a program select button! :-) No honestly, if I have a collection of short independent programs which (...) (23 years ago, 25-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: remote program activation
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Hi Kaspar, (...) sending it the remote control sequence for button P1 it will start the currently selected program (not necessarily number 1). There was a more detailed discussion about this on the lejos mailing list a while ago. It's like this (...) (23 years ago, 25-Sep-02, to lugnet.robotics.rcx.java)
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| | Re: Build Your Own Lego Submersible
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(...) Was it this one? (URL) Jürgen Stuber <stuber@loria.fr> (URL) (23 years ago, 25-Sep-02, to lugnet.robotics)
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| | brickOS status update
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We are continuing to update our web site. The front page contains the latest news. (URL) have pushed another round of API docs to the web. New in this version are the brickOS Kernel Developer set and new example program pages (autogenerated from our (...) (23 years ago, 25-Sep-02, to lugnet.robotics.rcx.legos)
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| | remote program activation
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Does anyone of you know, whether it is possible (with a special byte sequence for example) to send a command to the running LeJOS JVM on the RCX which tells it to run a certain uploaded program? Or, if not, is it maybe possible to call a program x (...) (23 years ago, 25-Sep-02, to lugnet.robotics.rcx.java)
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| | RE: RIS 2.0 $150.00 Or Best Offer
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I would love it Please contact me Mitch -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of lego-robotics@crynwr.com Sent: Monday, September 23, 2002 11:13 PM To: lugnet.robotics@lugnet.com (...) (23 years ago, 24-Sep-02, to lugnet.robotics)
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| | Re: Automatic RCX Battery Recharging
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(...) Well I may sound boring, but with reflex loading they don't get hot ! Stef Mientki (...) (23 years ago, 24-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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In order to protect the RCX from any type of power problems, would it make sense to disconect the RCX from the batteries first and have it run from an alternate power supply? or would this make it too complicated? I know little about electronics, is (...) (23 years ago, 24-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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In lugnet.robotics.rcx, Brian Bagnall writes: <snip> Are you are talking about chagring batteries while they are in the RCX? If so, what about the heat. When the NiMh batteries are chargin in a wall-wart charger they get quite warm, wouldn't you be (...) (23 years ago, 24-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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(...) For you and me, that's simple... but even procurement of parts other than plain vanilla ones may be a nightmare for someone who isn't more or less in the electronics business (At least it is here in France) (...) Thanks for the pointer. (...) (...) (23 years ago, 24-Sep-02, to lugnet.robotics.rcx)
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| | Re: RIS 2.0 $150.00 Or Best Offer
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By tradition these kinds of buy-sell-trade type posts belong only in the marketplace newsgroups. -- Hop-Frog (23 years ago, 24-Sep-02, to lugnet.robotics)
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| | Re: Ordering via Bricklink
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(crossposted to lugnet.market.brickshops; Posted also to Bricklink Searching forum) Wayne Watson wrote: > Is it possible to search for stores that have both part 32068 (axle joiner) and 6592 (20 tooth rack) > in certain quantities and in the US? I (...) (23 years ago, 24-Sep-02, to lugnet.robotics, lugnet.market.brickshops)
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| | RIS 2.0 $150.00 Or Best Offer
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I am selling my RIS 2.0 kit including PLANO tackle/storage box. This RIS kit only has about 3 hours on it. It is in mint condition I just haven't had the time to play with it. If you are interested please let me know ASAP. Craig Morris (23 years ago, 24-Sep-02, to lugnet.robotics)
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| | Ordering via Bricklink
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Is it possible to search for stores that have both part 32068 (axle joiner) and 6592 (20 tooth rack) in certain quantities and in the US? One you are in a store is it possible to search for another part within the store rather than use the (...) (23 years ago, 24-Sep-02, to lugnet.robotics)
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| | ir cars
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Can the rcx control the new infrared cars? (23 years ago, 23-Sep-02, to lugnet.robotics)
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| | Build Your Own Lego Submersible
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Recently we had a trip to Monterey Bay Aquarium. In the souvenir shop I found an interesting book "Build Your Own Lego Submersible" by Harry Bohm and Vickie Jensen. Despite its name, the only Lego element used in this project is the RCX brick. The (...) (23 years ago, 23-Sep-02, to lugnet.robotics)
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| | Re: Automatic RCX Battery Recharging
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(...) that's true, (if you think 1 8-pins IC + 1 Mosfet is not simple) (...) Good question, I never asked my self. But it seems no problem at all, I've very bad contacts, (you can even hear and or see them sometimes when the charge process is going (...) (23 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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I agree that there are much faster charging methods, but the slow one has the advantage of simplicity (this was implied in the original question)... I wonder too how to design a connector with contacts that reliably carry 4 to 10 A currents and (...) (23 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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| | Re: Automatic RCX Battery Recharging
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(...) Yes Brian, and read my P.S. ;-) (...) This is not necessairly true. If you use the right charge method, load time less then 15 minutes, without degrading the batteries (even with positiv effect on the lifetime/capacity) is very well possible (...) (23 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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| | Automatic RCX Battery Recharging
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Some of us on the leJOS mailing list were discussing auto-battery recharging with the RCX. Here's some technical thoughts from Philipe Hurbain that might be useful to others. p.s. If anyone has anything to add to this please do. -*-*-*-*-*- I think (...) (23 years ago, 23-Sep-02, to lugnet.robotics.rcx)
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| | Re: Spybotics
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There are discussions about this in the group lugnet.robotics.spybotics. (...) (23 years ago, 22-Sep-02, to lugnet.robotics)
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| | Re: Have you seen this? Spiral Robot Drive
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(URL) NO. (23 years ago, 21-Sep-02, to lugnet.robotics)
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| | Re: Have you seen this? Spiral Robot Drive
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"Eric Sophie" <mylegomaster@cs.com> wrote in message news:H2oLA5.8Bn@lugnet.com... (...) end of arm tool get slung against a wall at 20 km/h during an e-stop test. Iain (23 years ago, 21-Sep-02, to lugnet.robotics)
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| | Spybotics
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I recently bought one of these new Spybots. I would like to get some background information. I also have an RIS 2.0 and would like to know if and how Spybotics and Mindstorms can be combined. Any help would be very much appreciated. Thank You (...) (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | RCX Processor clock rate
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Anyone know what rate LEGO is clocking the H8 processor in the RCX? (23 years ago, 21-Sep-02, to lugnet.robotics)
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| | Re: Lego Cam
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For people using leJOS, a Java Vision System was released by Lawrie Griffiths "It supports most of the functions of the Lego Vision Command software, but in an open extensible way that will allow much more sophisticated functionality to be added. (...) (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | Re: Some questions that relate to an idea I am thinking about
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(...) terrain, but it seems like the perfect solution for certain situations. (...) Chris - Xenon (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | RE: Lego Cam
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I meant 4, not 3. -----Original Message----- From: Rob Limbaugh Sent: Friday, September 20, 2002 8:54 AM To: Laszlo Meszaros (ETH); Jones, James Cc: lego-robotics@crynwr.com Subject: RE: Lego Cam There are 3 basic options: 1) A wireless USB adapter (...) (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | RE: Lego Cam
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There are 3 basic options: 1) A wireless USB adapter of some type (RF/IR) 2) Hack the cam so that data between the video chip and USB controller becomes wireless 3) Build a video driver package for various existing wireless cams to bluff the VC (...) (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | Re: Some questions that relate to an idea I am thinking about
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(...) I have built a robot based on this architecture. I used it to attend a contest where the robots had to cover a distance, touch a wall, rotate and come back as precisely as possible to the starting point. I don't have a page on my site for this (...) (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | Re: Some questions that relate to an idea I am thinking about
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Here is a Ldraw sketch of such a device that Andy "ABEvans" sent me a while ago: www.philohome.com/ot...angle1.dat This vehicule appeared on Mindstorms inventions site, but I couldn't find it again... According to him, it worked fine. Philo (...) (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | Re: Lego Cam
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(...) yepper.... although i have seen them at garage sales for less than a hundred. -tk (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | Re: VPBRICK
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(...) This should work: SetEvent(My_Event, Message(), EVENT_TYPE_MESSAGE); Dave (23 years ago, 20-Sep-02, to lugnet.robotics.rcx.nqc)
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| | Re: Lego Cam
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I use to work at a place called SuperCircuits.com. It was a few years back, but they sold some transmitters that were the size of quarters and did like 500ft on 900mhz. I have a quick quick question while I'm talking....is 189.00 the price for a (...) (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | Re: Some questions that relate to an idea I am thinking about
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(...) I thought of trying this in order to get precise 90 degree turns WITHOUT using a sensor of any kind. The idea would be to have mechanical endstops preventing the 'foot' from rotating more than 90 degrees in either direction with some kind of (...) (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | Re: Lego Studios
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(...) They have the same camera but different software and different parts. For movie making, Studios software provides animation and movie editing. Vision Command software allows animation but not much movie editing. For image processing and (...) (23 years ago, 20-Sep-02, to lugnet.robotics)
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| | Re: Some questions that relate to an idea I am thinking about
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"Jonathan Wilson" <jonwil@tpgi.com.au> wrote in message news:3D89C9CE.208030....com.au... (...) perfect) (...) Could this be what your looking for? (URL) (23 years ago, 19-Sep-02, to lugnet.robotics)
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| | Re: Voltage Sensor
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Hello, (...) This is a really interesting idea. Make sure to allow a current of roughly 10% of the Z-Diode's maximum rating, even for the lowest battery voltage you are interested in. Then you will have little effect of the pullup or the variation (...) (23 years ago, 19-Sep-02, to lugnet.robotics)
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| | Lego Cam
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Has anyone tried to convert the Lego Camera into a wireless cam? It should be possible by using a transmitter/ receiver. I was just wondering if someone had some experiences with this they would like to share. Thanks! James C. Jones Technology (...) (23 years ago, 19-Sep-02, to lugnet.robotics)
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| | Re: Some questions that relate to an idea I am thinking about
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(...) I've always wondered about the possibility of a non-steerable drive system powered by one motor output, with a large 'foot' that could descend from the center of the bot to lift the wheels/treads off the ground (pneumatics?) and a third output (...) (23 years ago, 19-Sep-02, to lugnet.robotics)
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