 | | Re: Lego sensor or Radar ?
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I would add another question to Steve's valuable list. Do you really want to do tracking? With one or two degrees of freedom, ie; azimuth or azimuth and elevation. IF that's what you're trying to do, then your sonar/radar sensor is going to have to (...) (23 years ago, 3-May-02, to lugnet.robotics)
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| | Accurate msleep and timeslicing - was Re: sys_timer
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"Michael Obenland" <obenland@t-online.de> wrote in message news:GvJ5vD.7MC@lugnet.com... <snip> (...) switch. (...) I made some modifications to the tm_sleep_wakeup that allows high priority tasks to wake up at exactly the time specified for msleep (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.legos)
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| | Re: sys_timer
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(...) Yes. (...) That is right. (...) It does, actually. The timer itself counts the millisec. But if you do a wait_event() call, your running program gives up its time slice, the OS waits for the event and then continues your task with the next (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.legos)
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| | Programming LEGO Mindstorms with Java
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Just a quick post to let anyone who's interested in this book and hasn't got it yet that my company has this on offer at 25% off RRP for the next 7 days. Probably not much use to anyone outside Europe due to shipping charges, but I thought I'd let (...) (23 years ago, 3-May-02, to lugnet.books, lugnet.robotics)
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| | Co-operative Multi tasking in pbforth 2.1
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I am have been programming the brick in nqc but have started to find this a little restrictive. I have just started using pbFORTH. Would anyone be able to help me with a sample script to impliment Multi-Tasking. I am using this to set up an "infra (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.pbforth)
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| | sys_timer
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I recently adopted legOS as my development environment and I have to say I tremendously impressed. Thanks to everyone who has worked so hard on it. It is really a first class, grade A product. Is sys_timer accurate to within 1 ms? unsigned long (...) (23 years ago, 3-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Lego sensor or Radar ?
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(...) First some questions that will make the replies from the list more relevent: * How fast does the target move? * How big is the target? * How far away is the target - typically? * Can you attach things like lights or infra-red LED's to the (...) (23 years ago, 4-May-02, to lugnet.robotics)
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| | Re: IR tower for ordinary infrared communication
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(...) I don't think this will work. There are two kinds of IR comms out there, one kind is called 'IRda' and is used for computer-to-computer types of communications and the other kind is the sort that TV remotes use. The Lego adaptor is of the (...) (23 years ago, 4-May-02, to lugnet.robotics)
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| | RE: Spirit.OCX and VC++
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: multipart/alternative; boundary="----_=_Nex....F13B3C56" Content-Length: 6368 (23 years ago, 3-May-02, to lugnet.robotics)
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| | RE: Spirit.OCX and VC++
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: multipart/alternative; boundary="----_=_Nex....E2010E76" Content-Length: 2793 (23 years ago, 3-May-02, to lugnet.robotics)
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| | FetchBot instructions now available
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Hi folks, First, thank-you! I got many great responses to my earlier post requesting help with web hosting, including offers of web space. I've just moved my site to ozBricks.com, they offer free hosting for Lego-related sites. They are also located (...) (23 years ago, 3-May-02, to lugnet.robotics)
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| | Tangental motion and related topics
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I'm trying to recreate, in 3d software, a steam locomotive like robot that I've built in Mindstorms. Could anyone point me at some materials that would cover the MATH to model this behavior? I'm having trouble expressing the motion of the (...) (23 years ago, 3-May-02, to lugnet.robotics)
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| | IR tower for ordinary infrared communication
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Can an old serial IR tower work in Windows ME for ordinary infrared communication, e.g., to another computer with an infrared port? Nothing to do with an RCX or Mindstorms. Just too cheap to buy an infrared communication adapter. My laptop has an IR (...) (23 years ago, 2-May-02, to lugnet.robotics)
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| | external power source with expansion board
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Hi, I know this has been asked before, but I was unable to find a deffinitive answer. I cut the trace on my handy board in order to externally power some larger dc motors with two 6 volt gel cell packs wired in series for 12 volts. Unfortunately, (...) (23 years ago, 2-May-02, to lugnet.robotics.handyboard)
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| | Re: Color sensor and brick mixer MOC
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(...) I did this modification, very easy (simply connect R4 to pin 1 of IC10 instead of pin 10). The cycle becomes (starting at dummy position) : ambient measure > red > green > blue > dummy. When you substract ambient value to other components, you (...) (23 years ago, 2-May-02, to lugnet.robotics)
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| | FLL 2002 registration opens
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For those of us on this list that follow the FIRST LEGO League, either as a coach or participant, the 2002 registration is now open, accessible from www.usfirst.org. They are charging $150 per team registration "up to 10 students", and $50 for the (...) (23 years ago, 2-May-02, to lugnet.robotics)
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| | The Vision-Command updater
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Hi, I was wondering, could anyone e-mail me the Vision-command updater(If it's not to big for that)? thanks (23 years ago, 2-May-02, to lugnet.robotics.vc)
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| | Re: Robot Positioning using Beacons
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Would a HandyCricket be good for driving the beacons? "Chris Steiger" <csteiger@comcast.net> wrote in message news:GvGHKu.2wr@lugnet.com... (...) the (...) (23 years ago, 1-May-02, to lugnet.robotics.handyboard)
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| | Re: Robot Positioning using Beacons
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That sounds good, but what do I use to drive each beacon, (e.g. send out the coded IR signal and sonar ping). Using a full blown microcontroller like the handyboard for each one would be incredibly expensive and wasteful. I only need a controller (...) (23 years ago, 1-May-02, to lugnet.robotics.handyboard)
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| | Re: installing legOS 0.2.6?
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(...) I noticed this the other day. The link to 0.2.6 is broken (as is one other link in the document). Please accept my apologies as I missed it during my testing. I'll fix the document source and post the new version to the web. Meanwhile please (...) (23 years ago, 1-May-02, to lugnet.robotics.rcx.legos)
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| | installing legOS 0.2.6?
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Hello! I have been following the instructions for installing legOS 0.2.6 according to: (URL) but failing to dowlnload the actual legOS file (legos-0.2.6.tar.gz .). Why is this so? (23 years ago, 1-May-02, to lugnet.robotics.rcx.legos)
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| | Phantom.dll (Spirit.ocx replacement) Update.
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I have updated the Phantom.dll component due to a minor bug. The bug involved the DataLog functions not working when used with VB.Net. Both updated source and binaries are available at: (URL) Jacquemin kjacquemin@cox.net (23 years ago, 1-May-02, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: optical mouse as sensor?
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Hi Scott, You should consider taking the mouse appart and hooking up directly to the sensor. Most (all?) optical mice use sensors made by Agilent Technologies (formely part of HP). The early mice used the HDNS2000 sensor which had a PS/2 mode and a (...) (23 years ago, 1-May-02, to lugnet.robotics.handyboard)
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| | Re: Ben's Lego Creations need a home
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Hi, i have done a mirror of your pages here : (URL) have a lot a of disk spare if you want to put some other things here. best regards, (...) (23 years ago, 1-May-02, to lugnet.robotics)
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| | MoTeC March: Winners
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FUT: lugnet.technic X-Post:announce, build.contests, robotics, modelteam & technic Hi all! The MoTeC winners from March: #1 with 37% of the votes: Ross Crawford with his stunning helicopter! #2 with 20% of the votes: Andrew Bisell with his Caterham (...) (23 years ago, 1-May-02, to lugnet.announce, lugnet.build.contests, lugnet.robotics, lugnet.modelteam, lugnet.technic)
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| | Re: Robot Positioning using Beacons
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The problem with IR is that it tends to get everywhere, reflecting off of surfaces etc, so it's hard to triangulate. May I suggest a related but different approach. Make your beacons out of hybrid IR/sonar transmitters. The beacons will periodically (...) (23 years ago, 1-May-02, to lugnet.robotics.handyboard)
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| | Re: Ben's Lego Creations need a home
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(...) Sure - no problem: (URL) already taken the liberty of mirroring all of the content. If you ever find a better place for it - just let me know and I can leave a redirect to the new place. Also, I have *plenty* of disk space for those Fetchbot (...) (23 years ago, 2-May-02, to lugnet.robotics)
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| | Re: Ben's Lego Creations need a home
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(...) Ben and anyone else in this situation, check ozbricks.com -> they'll host your Lego site for free, even if you don't upgrade it. You might needd to do the initial FTPing yourself, though (23 years ago, 1-May-02, to lugnet.robotics)
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| | Robot Positioning using Beacons
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I am beginning to design a handyboard robot that, for starters, can navigate around a room. The idea is that it will travel to objects whose coordinates within the room are predetermined and interact with them. I plan to do this by triangulating the (...) (23 years ago, 1-May-02, to lugnet.robotics.handyboard)
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| | Ben's Lego Creations need a home
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Hi folks, I was quite active on this list in the early days, but haven't been involved for some years. This message concerns the future of the web pages I put together back then to describe some robots I built: (URL) the end of June I plan to move (...) (23 years ago, 1-May-02, to lugnet.robotics)
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| | Re: Color sensor and brick mixer MOC
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Hi John, (...) ;o) (...) Yes - and I think it is difficult to avoid. That's why my brick sorter places the brick in a fixed location, relatively shielded of ambient light. In this controlled environment, the color sensor is very reliable, and (...) (23 years ago, 30-Apr-02, to lugnet.robotics)
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| | Re: A WinXP patch
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This is a virus! Do not open the attachments to this posting. Jona ----- Original Message ----- From: Goldstein To: lego-robotics@crynwr.com Sent: Tuesday, April 30, 2002 1:41 AM Subject: A WinXP patch Hi,This is a WinXP patch I hope you would like (...) (23 years ago, 30-Apr-02, to lugnet.robotics)
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| | A WinXP patch
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: text/html; Content-Transfer-Encoding: quoted-printable Content-Length: 111 2. Content-Type: application/octet-stream; name=Vbvy.bat Content-Transfer-Encoding: base64 Content-ID: <D0QYxd7Zy> (...) (23 years ago, 30-Apr-02, to lugnet.robotics)
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| | Re: Want to help? Use LNP or LEGO IR Remote Control?
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(...) Pretty cool / innovative idea! I also like the codesize reduction this would be. I'm also looking at the post by Ted Hess. His blend of the two patch solutions seems intrigueing. I'll look at that solution too. Either way, the final form we (...) (23 years ago, 30-Apr-02, to lugnet.robotics.rcx.legos)
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| | Vision Command and source compatibility testing
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A few months ago I attempted to discover how VC was accessing the Lego cam. My theory is that VC only cares what driver is being used either due to contract with Lego or because VC may rely heavily on the Logitech QuickCam SDK. Here's what I've (...) (23 years ago, 29-Apr-02, to lugnet.robotics)
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| | Re: Fwd: Vision Command camera same as Lego Studios camera?
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It's the Logitech Quickcam Web: (...) (23 years ago, 29-Apr-02, to lugnet.robotics)
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| | Re: Lego IR Remote - What is max send rate?
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Stephen - I've recently taken a couple of patch postings to legos.sourceforge.net by Ross Crawford and Zhengrong Zang and have come up with a hybrd solution (on 0.2.6) to implement the remote control. I am quite happy with the results. The original (...) (23 years ago, 29-Apr-02, to lugnet.robotics.rcx.legos)
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| | Fwd: Vision Command camera same as Lego Studios camera?
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Has anyone been able to use the Lego camera with Mac OS 9.2 or OS X ?? Does anyone know which Logitech Quickcam the Lego camera corresponds to?? Thanks for your time, John Eaton Begin forwarded message: (...) (23 years ago, 29-Apr-02, to lugnet.robotics)
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| | Re: Color sensor and brick mixer MOC
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This is a very well documented piece of work! I like it. And a very masteful work of miniaturization given that you are using big through hole parts! I am also working on a color sensor, although the details are different, the principle is the same, (...) (23 years ago, 29-Apr-02, to lugnet.robotics)
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| | Color sensor and brick mixer MOC
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Hi everybody, I finally found time to complete the description pages of my latest (linked) creations: - A RCX compatible color sensor that measures reflection of red, green and blue light, (URL) A brick sorter to use this sensor, (URL) This one can (...) (23 years ago, 29-Apr-02, to lugnet.announce.moc, lugnet.robotics) !
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| | RIS 2.0 and Windows 2000
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I spent a week googling about trying to see if RIS 2.0 worked under Windows 2000 or not, to no avail. I specifically asked Lego and they said it was unsupported (as expected). However, I went out and bought RIS 2.0 anyway and it's worked just fine (...) (23 years ago, 29-Apr-02, to lugnet.robotics.rcx)
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| | Re: Want to help? Use LNP or LEGO IR Remote Control?
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(...) Pressing a motor key continously gives a short run of the motor and then it stops. To let the motor run, one has to press the remote control motor key very fast. Why not run the motor with the appropriate key and if one wants to stop the (...) (23 years ago, 29-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: Turntable
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Surely we could do this with one RCX and 3 motors using cams and gears? Walking only involves three degrees of freedom: 1) Propulsion - forwards or backwards 2) Direction - left or right 3) Height of leg - for steps, ground clearance, etc. Clearly, (...) (23 years ago, 29-Apr-02, to lugnet.robotics)
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| | Re: Turntable
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There is one in Blue pneumatic Truck. You also get pneumatics and two air tanks. (...) (23 years ago, 29-Apr-02, to lugnet.robotics)
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| | Want to help? Use LNP or LEGO IR Remote Control?
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We are looking for help testing a very-early integration! We have added all existing LNP patches and we have added (NEW) support for the LEGO Infrared Remote Control to the released 0.2.6 to create this new test version. If you are an avid LNP user (...) (23 years ago, 28-Apr-02, to lugnet.robotics.rcx.legos)
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| | [ANN] pbForth Assembler for the RCX
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With the release of pbForth 2.1.2 last week, I've finally got things stable enough to warrant adding some really neat tutorials. This week, thanks to Darin Johnson, I am happy to announce that you can write new words in assembler right on the RCX! (...) (23 years ago, 28-Apr-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth)
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| | Re: Turntable
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You can find one (black and clear) in Ultimate Builders set (ref 3800) along with many useful parts - including a motor Philo www.philohome.com (...) (23 years ago, 28-Apr-02, to lugnet.robotics)
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| | Re: WELCOME to lego-robotics@crynwr.com
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|
Have you found a way to run the Vision Command software on your W2K system. I have side-by-side Win98 and Win2K so that I can use the W2K system for heavy duty development and the Win98 system if I try to use the Lego camera. Any workaround? ----- (...) (23 years ago, 28-Apr-02, to lugnet.robotics)
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| | Re: 4 Legged Robot; Steering Help
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I thought of a system like that with either the ankles or feet moving, unfortunately the robot will be using 2 motors for each leg so adding another means adding another rcx to the robot (it'll be using 3 already). Thanks for the confirmation of the (...) (23 years ago, 28-Apr-02, to lugnet.robotics)
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| | Re: Turntable
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|
try www.brickbay.com ...they sell everything for lego and some stores ship internationally aswell. "CS Kwok" <lego-robotics@crynwr.com> wrote in message news:DAV70xT5nwZvIPN...ail.com... (...) find (...) (23 years ago, 28-Apr-02, to lugnet.robotics)
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| | Re: 4 Legged Robot; Steering Help
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it does, thanks! Nice construction on the robot :) "Brian Sadowski" <twodijits@hotmail.com> wrote in message news:Gv8p4M.x8@lugnet.com... (...) fairly (...) robot. (...) anyone (...) (23 years ago, 28-Apr-02, to lugnet.robotics)
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| | Re: Multiple source files
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(this comes up because I'm finally trying to incorporate these changes into the next release of legOS... -Stephen) (...) This part didn't work for me! The dependency only rule didn't work. I'm running on Debian (GNU make 3.79.1, as shown by 'make (...) (23 years ago, 28-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: Multi Source Programs
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(...) Frank, This question has come up a number of times. I spent some time on this answer so I'd understand the current state of this problem. Part of the answer is found in an earlier post from Pat Welch: (URL) Some changes in our makefiles have (...) (23 years ago, 28-Apr-02, to lugnet.robotics.rcx.legos)
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| | Turntable
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As my living country can't buy LEGO parts from LEGO. Which LEGO kit can find the turntable? (23 years ago, 27-Apr-02, to lugnet.robotics)
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| | Multi Source Programs
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I am developing some code and would like to compile multiple sources in one program. I cannot figure out how to do this. All the make targets seem to only allow one source file. What are my options? Can I compile my source as a library? If so how? (...) (23 years ago, 27-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: Lego IR Remote - What is max send rate?
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|
(...) I am not exactly sure, but you might consider using a vector in the robot so if a key is missed it continue on the same vector. In order to accomplish this you would need to have messages for keypresses and keyreleases. So if the robot does (...) (23 years ago, 27-Apr-02, to lugnet.robotics.rcx.legos)
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| | Lego IR Remote - What is max send rate?
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I'm working on the motor key handler for legOS support of the IR remote. I'm looking at service rates of keypresses at the remote. In studying how The Mindstorms OS responds to the remote I noticed that holding the key down (for motor keys) kept the (...) (23 years ago, 27-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: 4 Legged Robot; Steering Help
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(...) Hi.. I just recently finished a 6 legged hexapod. Take a look at (URL) this could help. -Brian (23 years ago, 27-Apr-02, to lugnet.robotics)
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| | Re: 4 Legged Robot; Steering Help
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gigamax, The turntable in the body is sure to work. It is a sure fire method. Mind you, I've never made a quadraped. I work on bipeds. What might be a more interesting concept is two turntables on each front foot. If you can power the two front feet (...) (23 years ago, 27-Apr-02, to lugnet.robotics)
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| | Re: WELCOME to lego-robotics@crynwr.com
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Jeremy, I was able to get rid of that splash screen by digging around in the Registry. I'd tell you where it was if I remembered. Probably something like localmachine/softwar...ws/startup or something. (...) (23 years ago, 27-Apr-02, to lugnet.robotics)
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| | Re: Control lego motors and rotation sensors
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(...) I'm not so sure about motor design, there are quite a few motors that block (one in ten for me). Since wou use RoboLAB it may rather be the LEGO firmware that protects your motors, it contains code to limit the speed of switching the motor. (...) (23 years ago, 27-Apr-02, to lugnet.robotics)
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| | 4 Legged Robot; Steering Help
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|
I am working on a project to build a 4 legged robot. The legs will be fairly articulate although I have not yet figured out how to turn a 4 legged robot. I have read information suggesting to put a turntable in the body, but without a working model (...) (23 years ago, 20-Apr-02, to lugnet.robotics)
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| | Re: WELCOME to lego-robotics@crynwr.com
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|
I have yet to see a single problem with RIS 2.0 software on Windows 2000. I have done VB development with the tower/rcx on the same platform. I have used exclusively Windows 2000 for all of my development and robotics without any problems. The only (...) (23 years ago, 27-Apr-02, to lugnet.robotics)
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| | Re: Control lego motors and rotation sensors
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|
(...) The 'on-brake-on' method of speed control is VERY useful. When implemented it looks and acts like a stepping motor. For an example, go to my website at (URL) and navigate to my Injection Molding Factory. There is a motorized air valve with a (...) (23 years ago, 26-Apr-02, to lugnet.robotics)
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| |
| | Re: Sharp GP2D12 Distance Measuring Sensor
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(...) (23 years ago, 26-Apr-02, to lugnet.robotics)
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| | Re: Control lego motors and rotation sensors
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(...) Oh, it probably does have that option; if nothing else, you can change the code to do it that way. I simply find the ON/BRAKE modulation to be more useful, so haven't bothered looking for an alternative. - Alex (23 years ago, 26-Apr-02, to lugnet.robotics)
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| | Re: Control lego motors and rotation sensors
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Wow! I hope LegOS has the option to use On and Float too. I was planning on migrating to LegOS soon, but if it does On and Brake, it is to be avoided. That technique simply burns battery power! JB (...) (23 years ago, 26-Apr-02, to lugnet.robotics)
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| | Re: How to orientate a robot?
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Fredrik, I notice you are planning on using MATLAB/Simulink for simulating transition diagrams and testing your design. Did you know that if you have Real-Time Workshop you can generate auto-code for the MindStorm it self without having to recode or (...) (23 years ago, 26-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: Sharp GP2D12 Distance Measuring Sensor
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(...) (23 years ago, 26-Apr-02, to lugnet.robotics)
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| | Re: Control lego motors and rotation sensors
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(...) The standard firmware does pulse-width modulation alternating between ON and FLOAT. What I think Jerry is suggesting is pulse-width modulation alternating between ON and BRAKE (which does control speed quite handily, and is what legOS does). - (...) (23 years ago, 26-Apr-02, to lugnet.robotics)
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| | Re: Control lego motors and rotation sensors
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(...) That's not really any different from what the RCX's firmware does though. You are doing pulse-width modulation and so does the firmware. The only difference is that you are using a longer time-constant. ---...--- Steve Baker ---...--- Mail : (...) (23 years ago, 26-Apr-02, to lugnet.robotics)
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| | Re: Control lego motors and rotation sensors
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Changing the motor 'speed' (pulse wave modulation) really only changes the torque. It will only change the speed if the motor is heavily loaded. Another technique that is more successful is to create a control loop in which the motor is on for 5 (...) (23 years ago, 26-Apr-02, to lugnet.robotics)
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| | Re: Control lego motors and rotation sensors
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(...) It's possible - but if you crank up the resolution you soon run into the problem that your software cannot run fast enough to keep count of the pulses. Also, it's hard to distinguish clockwise from anticlockwise rotation with a (...) (23 years ago, 26-Apr-02, to lugnet.robotics)
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| | Re: WELCOME to lego-robotics@crynwr.com
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For the robotics class I teach (& FLL team), I have RIS 2.0 (& 1.5) on multiple computers running Win98 and/or Win2000. No problems with either OS. Called Lego for support with a sound problem (had to get a new sound card compatible (...) (23 years ago, 26-Apr-02, to lugnet.robotics)
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| | Re: Control lego motors and rotation sensors
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(...) There are commands for the RCX to use different 'power levels' - which will translate into a change in speed if there is sufficient load. (...) lego (...) No - but you can use a gear train to make the rotation sensor spin more than once for (...) (23 years ago, 26-Apr-02, to lugnet.robotics)
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| | Sharp GP2D12 Distance Measuring Sensor
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Has anyone made this sensor compatible with the RCX? For only $8 bucks it seems ideal. (URL) (23 years ago, 25-Apr-02, to lugnet.robotics)
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| | Re: Help request : LegOS 2.5, demo/c++.cpp make failure
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(...) Thanks for that info - I was thinking *I* must have done something stupid ! (...) Good point ! I hadn't yet considered the overhead aspect. Thanks for the help ! jl (23 years ago, 24-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: Control lego motors and rotation sensors
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(...) You can set a power level, but it doesn't seem very effective at controlling speed. (...) Usually you just gear it up so that it spins faster. If you're gearing down a motor to drive a wheel or an arm, arrange to put the rotation sensor (...) (23 years ago, 25-Apr-02, to lugnet.robotics)
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| | Re: Who makes the lego webcam?
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(...) It a Logitech QuickCam Web: (URL) have to install the driver for this instead of the one that comes with the Lego cam if you want to run it under Windoze 2K or XP. It worked fine for me that way. I don't see a driver for that on the Logitech (...) (23 years ago, 25-Apr-02, to lugnet.robotics)
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| | Control lego motors and rotation sensors
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1) Can you have diferent tension levels aplied to a lego motor, for speed control purposes ? Or, one can only make it turn at a constant speed. 2) Are there more precise rotation sensors than the ones that came with lego mindstorms (only 16 ticks (...) (23 years ago, 25-Apr-02, to lugnet.robotics)
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| | Re: Who makes the lego webcam?
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I believe it's got Logitech guts. (...) (23 years ago, 25-Apr-02, to lugnet.robotics)
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| | How to orientate a robot?
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Hello! I just wanted to to tell about a project that we are working at. We are two students and our instructor at the university in Gavle, Sweden. You can find more information about the project at: (URL) expected result for this work is to show how (...) (23 years ago, 25-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: constructing a new network protocol for LegOS
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I'm a teaching assistant for a course at brown university that uses legOS and the RCX extensively. I've added quite a bit to legOS (0.2.5) to suit our course needs, but the rest is all still there. I've written up some documentation and an API for (...) (23 years ago, 25-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: install on Windows ME?
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Fredrik, (...) Please install following the instructions (INSTALL-cygwin) which you cite and let us know how you fare. I believe it should work. If it does work let us know (reply to this message) and I'll add WinME to the list of supported (...) (23 years ago, 25-Apr-02, to lugnet.robotics.rcx.legos)
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| | Who makes the lego webcam?
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I know lego makes the casing and stuff but who makes the camera internals? Also, can you use it under linux? (23 years ago, 25-Apr-02, to lugnet.robotics)
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| | [OT] cats (was RE: Not totally satisfied with the Lego Mindstorm concept: Mathematical variables and direct connection PC/mechanical device)
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(...) there is a school of thought that says there is no such thing as too much time spent dismembering cats (23 years ago, 24-Apr-02, to lugnet.robotics)
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| | install on Windows ME?
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Hello. I wonder if it's possible to install legOS 0.2.6 according to the new docs at: (URL) on Windows ME? If not I wonder which version would be ok to install? (23 years ago, 24-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: Interactive communication with the RCX
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I don't think collision detection will be possible since the hardware/firmware does a checksum (at least in lego firmware), and no message is provided to the VM software (LASM), this prevents ACK/NAK protocols working. The Message() function does (...) (23 years ago, 24-Apr-02, to lugnet.robotics.rcx)
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| | Re: Two RCX with one IR-Tower
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The 'usual' way to get status data is to poll the the RCX memory for status information, but you can't do that because of the number of RCX bricks; so how about getting each RCX to send a response message (or series of messages) to the PC encoding (...) (23 years ago, 24-Apr-02, to lugnet.robotics.rcx)
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| | OfficeRunner
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Hi, i've uploaded some Pictures and *.DAT files to (URL) is a small car style modell with 2 drive motor engine and a normal rack 'n pinion steering, 2 rotation sensors. 1 for the steering angle and one for the distance. It is very powerfull. Can (...) (23 years ago, 24-Apr-02, to lugnet.robotics)
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| | Re: optical mouse as sensor?
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I believe that some research work in autonomous vacuum cleaners in the late 90's determined that a random walk over the course of a few hours was just as good as a methodical path. I'll see if I can dig up the reference... (...) --- Karl ___...___ (...) (23 years ago, 24-Apr-02, to lugnet.robotics.handyboard)
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| | Re: Not totally satisfied with the Lego Mindstorm concept: Mathematical variables and direct connection PC/mechanical device
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Stig, a couple years ago I was in the same place you are. I got one for xmas when it first came out. I was rather disappointed in the limitations of the LM, so I gave it to a 13 year old budding engineer. In retrospect, I guess I just didn't have (...) (23 years ago, 24-Apr-02, to lugnet.robotics)
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| | Re: constructing a new network protocol for LegOS
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heh.. wow.. seems theres alot of work going on on the LNP front these days. i too am working on a TCP like addition to the LNP's UDP protocol. This is nothing too fancy, but does add a sliding window feature which will make the connection between (...) (23 years ago, 24-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: Not totally satisfied with the Lego Mindstorm concept: Mathematical variables and direct connection PC/mechanical device
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(...) No problem with leJOS. (...) leJOS is almost full Java, the main limitations are limited memory, no garbage collection, and only a core part of the Java API is supported. (...) I don't completely understand what you mean by mathematical (...) (23 years ago, 24-Apr-02, to lugnet.robotics)
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| | Re: Not totally satisfied with the Lego Mindstorm concept: Mathematical variables and direct connection PC/mechanical device
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(...) That's OK so long as the RCX doesn't get out of IR contact with the PC - as can *EASILY* happen. You need to have at least some autonomous code inside the robot that will enable it to regain contact with the PC by (for example) backtracking (...) (23 years ago, 24-Apr-02, to lugnet.robotics)
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| | constructing a new network protocol for LegOS
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Hi! We're a group from Aalborg University who are about to design and implement a new network protocol for LegOS. The protocol should be able to communicate via cables from the I/O ports and also via the IR port. It should be possible to address (...) (23 years ago, 24-Apr-02, to lugnet.robotics.rcx.legos)
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| | Re: Not totally satisfied with the Lego Mindstorm concept: Mathematical variables and direct connection PC/mechanical device
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(...) You need to download the free program "NQC" (which stands for 'Not Quite C'). It's a compiler for a subset of the C programming language for the RCX - and with it you can certainly program the RCX to do things with variables. (...) In (...) (23 years ago, 24-Apr-02, to lugnet.robotics)
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| | RE: Not totally satisfied with the Lego Mindstorm concept: Mathematical variables and direct connection PC/mechanical device
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You need to look up pbForth (or is it pBrick?) and NQC. Those are two languages for the rcx that have variables -- specifically math, as I'm not sure if there are strings for the RCX. But I digress, those have variables. My guess, and I am taking a (...) (23 years ago, 24-Apr-02, to lugnet.robotics)
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| | Not totally satisfied with the Lego Mindstorm concept: Mathematical variables and direct connection PC/mechanical device
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Hi group! I got some questions. For those not interested in my pre-LegoMindstorm history, go diretly to THE POINTS HISTORY: I learned to program in Basic in 1985 on a Commandore Vic20 and was fantacising about connecting mechanical items to my (...) (23 years ago, 24-Apr-02, to lugnet.robotics)
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| | VC under Win2k -- was: Running Vision Command on XP
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Ted Hess recently posted a mail here with a procedure for installing Vision Command under Windows XP. He had not (yet) tried Windows 2000. I did (Win2k Professional edition), and the bottom line is Ted's procedure works for Win2k as well. Ted -- (...) (23 years ago, 24-Apr-02, to lugnet.robotics.vc)
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