 | | Re: flame sensor
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(...) Oops, I guess I was wrong, then. Thanks for the correction, John. :-) ~Mike (...) (23 years ago, 23-Dec-02, to lugnet.robotics)
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| | Re: flame sensor
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I know that the terms of use for lugnet prohibits advertising, but I assume it permits anti-advertising :) The item identified in this post will not act as a flame sensor. It is a proximity sensor which works by emitting its own IR illumination (...) (23 years ago, 23-Dec-02, to lugnet.robotics)
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| | Re: flame sensor
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(...) Vincent, I think I know of something that will fit what you want exactly. John Barnes ((URL) makes an InfraRed sensor that supposedly works over a range of 1-7 inches. Sensor info here: (URL) that helps, ~Mike (23 years ago, 23-Dec-02, to lugnet.robotics)
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| | Re: flame sensor
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I know folks use this sensor for the trinity fire fighting contest.... (URL) (23 years ago, 23-Dec-02, to lugnet.robotics)
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| | unique Identifer in RCX
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Is there a unique identifier hard coded into the RCX? I recall reading somewhere that the serial number printed on the side of the RCX could be called up using NQC or LegOS. I may be wrong I would like to use this number for data logging so I would (...) (23 years ago, 23-Dec-02, to lugnet.robotics)
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| | Re: flame sensor
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(...) Lego actually make an 'official' temperature sensor. I guess that in combination with the light sensor, you'd be able to detect a candle flame. The biggest problem may be how to get the temp sensor close enough to the flame to unambiguously (...) (23 years ago, 23-Dec-02, to lugnet.robotics)
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| | RE: flame sensor
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Look here (URL) Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of Vincent Grace Sent: Sunday, December 22, 2002 3:16 PM To: lego-robotics@crynwr.com Subject: flame sensor I am trying to build a sensor to (...) (23 years ago, 22-Dec-02, to lugnet.robotics)
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| | Re: flame sensor
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Just a quick thought, I was thinking that using both the light and temperature sensors might be the way to go. Let the robot search or seek the brightness of the flame with the light sensor. Then if the value is true, measure the heat with the temp (...) (23 years ago, 22-Dec-02, to lugnet.robotics)
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| | flame sensor
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I am trying to build a sensor to attach to the RCX that can sense a candle flame. I'll be attaching it to a robot that will use it to look for a candle, go to it and extinguish it. If any one has heard of such a sensor that's able to be interfaced (...) (23 years ago, 22-Dec-02, to lugnet.robotics)
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| | Re: Problems with the linux version
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Hi Reto! I just set it up two weeks ago, here is what I did (in general description): How to set up leJOS in Linux and use the USB Mindstorms Legotower: * get current CVS version because leJOS 2.0 does not support the USB Tower in Linux. Look at (...) (23 years ago, 22-Dec-02, to lugnet.robotics)
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| | Re: Robotics
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(...) That's exactly how I feel towards Frosty: (URL) (23 years ago, 21-Dec-02, to lugnet.robotics)
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| | Re: Robotics
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(...) Robots are "Your plastic pal who's fun to be with!" (Douglas Adams - H2G2) (...) It's all OK until their eyes glow red - then they insist on taking over the world and it all ends in tears. :-) ---...--- Steve Baker ---...--- HomeEmail: (...) (23 years ago, 21-Dec-02, to lugnet.robotics)
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| | Problems with the linux version
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Hi, I am painfully trying to set up the lejos2.0 on linux (SuSE8.0 and or Knoppix3.1) with an USB-ir-Tower. First I could not do the make as it says that the libirtower.so is missing. That is true. Instead I've found a irtower.dll file which (...) (23 years ago, 21-Dec-02, to lugnet.robotics)
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| | Re: Robotics
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Hello Scott, I'm guessing this is a grade school research project of some sort? Sounds like fun so sure I'll help: Uses of Robotics Almost everywhere - start defining what is robotics. Some good definitions can be found at: (URL) would define (...) (23 years ago, 21-Dec-02, to lugnet.robotics)
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| | Re: How can I get a Mindstorms Ultimate Accessories Kit??????
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I can get them here in Ottawa (unless someone has suddenly bought them all). Where are you? (...) (23 years ago, 21-Dec-02, to lugnet.robotics)
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| | How can I get a Mindstorms Ultimate Accessories Kit??????
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How come it's discontinued?? DAMMIT! I can't find it anywhere on bricklink or evilbay either... :-(((( That is seriously weakening my chances of wanting to buy a 2.0 RIS in january.... (23 years ago, 21-Dec-02, to lugnet.robotics)
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| | Merry XMas & Happy NY
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Merry Christmas and Happy New Year to all lugnet members let the NY2003 brings you a lots of new bricks paul pixel kleniewski ps: so early because i'll be offline during this time (23 years ago, 20-Dec-02, to lugnet.robotics, lugnet.technic)
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| | USB IR tower support in Lunix
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I have seen some past messages in this forum regarding the support for the USB IR tower in the Linux version of BrickOS. However, it seems that nothing have been added recently to the CVS tree at SourceForge. Is somebody working on this project (...) (23 years ago, 20-Dec-02, to lugnet.robotics.rcx.legos)
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| | Robot competitions at BricksWest
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In order to have enough time and space for the various robot (and RC) competitions I'm running at BricksWest, I would request that anyone who is considering entering let me know. This isn't a binding commitment that you'll bring a robot, or racer, (...) (23 years ago, 20-Dec-02, to lugnet.events.brickswest, lugnet.technic, lugnet.robotics)
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| | Announcing RCX Drag Racing Competition at BricksWest 2003
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In addition to the Off-Road RC racing competition, there will also be an RCX robot competition involving racing... drag racing. Below are the rules. -- David Schilling RCX Drag Racing Competition Official Rules ===...=== Objective: Competitors will (...) (23 years ago, 20-Dec-02, to lugnet.events.brickswest, lugnet.technic, lugnet.robotics)
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| | Announcing Off-Road RC Racing Competition at BricksWest 2003
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As promised, below are the rules for the Off-Road RC Racing competition to be held at BricksWest 2003. -- David Schilling Off-Road RC Racing Competition Official Rules ===...=== Objective: Before the competition, competitors will design and build an (...) (23 years ago, 20-Dec-02, to lugnet.events.brickswest, lugnet.technic, lugnet.robotics)
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| | Re: New Version of leJOS
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(...) (URL) (23 years ago, 20-Dec-02, to lugnet.robotics.rcx)
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| | Re: Tempted in buying my first Mindstorms invention kit - 1.5 vs 2.0 ?
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I have observed a bit of sloppiness in the manufacture of the RCX's such that, in some cases, the IR diodes aren't mounted perfectly horizontally, they may be at an angle which will affect the apparent range. Opening the case and re-aligning the (...) (23 years ago, 20-Dec-02, to lugnet.robotics)
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| | Robotics
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For a paper I would like to talk about the uses and the pros and cons of robotics in the world. Any info would be helpful. Thanks in advance, Scott (23 years ago, 19-Dec-02, to lugnet.robotics)
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| | Re: Working motorized focus for Vision Command
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(...) If you download the SDK you will also get some demo programs. They will run with VC++ and show how to get a video stream to a window and how to use the motion detection feature of the camera driver. The demos don't help much for Kylix/Linux (...) (23 years ago, 19-Dec-02, to lugnet.robotics)
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| | Looking for Robotic Discovery Set (#9735)
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Hello, I am looking for 2 sets of brand new Lego Robotic Dicovery Set (#9735) Please make me an offer if you have ONE or TWO sets. Email: huip@hkstar.com Thanks. Patrick (23 years ago, 19-Dec-02, to lugnet.robotics)
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| | Re: Contact-Me 2003
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Great shot Eric, just one thing, AOL??? I mean, AOL???? The mechs are awesome, but A.O.L? You're not selling out I hope. Of course, I suppose a mech that automatically installed AOL on any computer it got near would be the most fearsome mech in the (...) (23 years ago, 19-Dec-02, to lugnet.build.mecha, lugnet.people, lugnet.org.us.gardenslug, lugnet.robotics)
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| | Re: Working motorized focus for Vision Command
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Sorry for the late reply ... consumer still cameras (even cheap ones) have auto-focus capability, so the technology has to be within reach of the RCX. I did a search on Google and found the following definitions: Active auto-focus is where the (...) (23 years ago, 19-Dec-02, to lugnet.robotics)
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| | Contact-Me 2003
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I got your Giant Robots right here! (URL) me 2003 mylegomaster@AOL.com www.mylegomaster.com Legomaster (23 years ago, 19-Dec-02, to lugnet.build.mecha, lugnet.people, lugnet.org.us.gardenslug, lugnet.robotics)
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| | Re: Working motorized focus for Vision Command
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(...) That would sure help make the image processing faster, but techniques do exist for image registration (e.g. (URL) This is often required for MRI or electron microsope images since the movement of the apparatus affects the image scale, skew and (...) (23 years ago, 19-Dec-02, to lugnet.robotics)
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| | Re: Working motorized focus for Vision Command
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(...) from one end to another taking pictures as you go, and selecting the best parts of each, you'd end up with better-than-perfect focussing. I guess you'd want to be careful to mount the camera very rigidly so it doesn't wobble as you drive the (...) (23 years ago, 19-Dec-02, to lugnet.robotics)
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| | Something unusual(?)
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Dear all, Here is some light entertainment: (URL) aware that the video file linked by the image is a 6 mb Divx 4 AVI) I'll post some notes on how I made it soon - for now enjoy the movie! (23 years ago, 18-Dec-02, to lugnet.animation, lugnet.space, lugnet.technic, lugnet.robotics, lugnet.build, lugnet.starwars, lugnet.cad)
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| | Re: Working motorized focus for Vision Command
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But how to I "weave" the SDK and the algorithms IN VC++? I am only wondering if this idea of an autofocusing lego cam is feasible. One day I may learn enough VC++ to be able to acomplish this project :-) I'm glad to know there is hope! Timothy (...) (23 years ago, 18-Dec-02, to lugnet.robotics)
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| | Re: Working motorized focus for Vision Command
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(...) Timothy, One source of inspiration for the focusing algorithm is to look at codes that expand the depth of focus by stitching together the in-focus portions of multiple images. This is used in microscopy quite a bit. The software has to be (...) (23 years ago, 18-Dec-02, to lugnet.robotics)
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| | Re: Working motorized focus for Vision Command
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(...) No problem. The VC camera is a repacked Logitech. You can get a free quickcam SDK from the Logitech homepage. With that, you can program the camera under Windows. If you want to use Linux, things get a bit more complicated. You could use (...) (23 years ago, 18-Dec-02, to lugnet.robotics)
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| | Re: Working motorized focus for Vision Command
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I have no idea how to access the camera from a programming language, nor do I have any experience in raw vision proccessing. Do you know how to do any of these previously meantioned? Timothy (...) (23 years ago, 18-Dec-02, to lugnet.robotics)
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| | Re: Working motorized focus for Vision Command
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(...) Yes - that'll also make the algorithm run faster. (...) I'm sure it's possible. What I'm not sure about is whether the kind of naive algorithm that I could come up with after just a few minutes thought would be effective. It might take some (...) (23 years ago, 18-Dec-02, to lugnet.robotics)
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| | Re: Tempted in buying my first Mindstorms invention kit - 1.5 vs 2.0 ?
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I have not performed any tests, but if you go in configuration panel, you will see that the USB tower can't be put in long range mode if it is placed behind a passive (non powered) USB hub. That may also be the case for low power laptop usb ports. (...) (23 years ago, 18-Dec-02, to lugnet.robotics)
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| | Re: Lego® 9V Technic Motors compared characteristics
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Hi Gaurav, (...) ;o) (...) I don't own these motors... but I have a friend who has this set, if I can get him to extract the motors from the car I'll post an update... Philo www.philohome.com (23 years ago, 18-Dec-02, to lugnet.robotics, lugnet.technic)
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| | Re: Working motorized focus for Vision Command
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Thanks for replying! I was thinking of the same procedure. But to help with the varried depth problem, a small part of the viewed area could be selected to be the focusing point. So overall, it must be possible, right? Timothy (...) (23 years ago, 18-Dec-02, to lugnet.robotics)
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