http://permalink.gmane.org/gmane.comp.hardware.lego.robotics hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7782 <pre> Hi Frances, Unfortunately, it may not be recoverable. Rechargeables can lose their ability to hold a charge if left unused for long periods. Having said that, I generally leave my NXT rechargeables attached, sometimes for long periods, and they are both still working well after several years, I used one of them to power my dish for 2 days at BV12 (although I was switching the NXT off while I was away from the exhibit). ROSCO </pre> Ross Crawford 2012-05-16T02:52:04 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7781 <pre>There is a great project for creating a technic/MINDSTORMS baseplate on Kickstarter that could be a great classroom or hobbydesk testbase as well as provide a sturdy base (or side) for many Robotics projects. Have a look at the &lt;http://www.kickstarter.com/projects/37801615/minutebot-base MinuteBot Base website&gt; to see what it is all about. &lt;&lt;http://i1206.photobucket.com/albums/bb442/SEQINETIC/MinuteBot/MinuteBase_partview2.png&gt;&gt; </pre> Jetro de Chateau 2012-05-14T19:23:24 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7780 <pre>I bought a rechargeable battery for my NXT and was very happy with it. However, I have ended up not using the NXT for some months and the rechargeable battery was left in the NXT. This weekend, I went to recharge the battery, it has been on the charger for two days now and the battery is still flat. The green light comes on on the battery indicating that it is charging. Any ideas what the problem is, and what I can do to get the battery to recharge? </pre> Frances Schroeter 2012-05-14T10:09:47 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7779 <pre> Jeff Findley wrote: Initially (at least) the Pi comes without a case, so I expect it is just a matter of building around it so it doesn't rattle too much. I haven't received mine yet, but I'll take a moment to see how well a pure LEGO case can work. It feels a little bit like waste to use a Pi for embedded systems considering that it has HDMI output and can run a 1080 lines video display. - But I can't find anything as cheap with the same computing power. Play well, Jacob ---------- &lt;http://lego.sparre-andersen.dk/Pier_17/ &lt;http://lego.sparre-andersen.dk/Pier_17/illustration.png&gt;&gt; &lt;http://lego.sparre-andersen.dk/CityXers/Postbil/ &lt;http://lego.sparre-andersen.dk/CityXers/Postbil/illustration.jpeg&gt;&gt; &lt;http://lego.sparre-andersen.dk/Antikken/Romerriget/Circus_Maximus/ &lt;http://lego.sparre-andersen.dk/Antikken/Romerriget/Circus_Maximus/illustration.jpeg&gt;&gt; &lt;http://lego.sparre-andersen.dk/By/Faroese_landscape/ &lt;http://lego.sparre-andersen.dk/By/Faroese_landscape/illustration.jpeg&gt;&gt; </pre> Jacob Sparre Andersen 2012-04-13T07:02:08 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7778 <pre>Hi all. I don't know how many people around here have heard of the Raspberry Pi, but I saw that someone is working on a Lego compatible case for it. The Raspberry Pi is a computer on a chip that is really cheap. This would seem to be an inexpensive way to add a lot more computing power to a Lego robotics project. Raspberry Pi: http://www.raspberrypi.org/ Berry Box - Discussion: http://www.raspberrypi.org/forum/projects-and-collaboration-general/berry-box-the-transparent-case/ Berry Box - WeFund: http://www.wefund.com/project/berry-box </pre> Jeff Findley 2012-04-12T12:26:26 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7777 <pre>Hi all. Now it is possible to control the NXT from every Apple iOS device. http://robotics.benedettelli.com/NXT2WIFI.htm </pre> Daniele Benedettelli 2012-02-29T11:05:50 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7776 <pre>Check out this life-size LEGO arm and hand. It's pretty amazing. http://www.fastcodesign.com/1669072/watch-a-working-robot-hand-made-from-legos </pre> Jordan Bradford 2012-02-23T22:15:21 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7775 <pre> The first UNESCO-certified festival in the country, Kurukshetra of College of Engineering, Guindy, Anna University, is to be held from February 1 to 4, 2012. Epitomizing its very tagline, “the battle of the brains”, Kurukshetra has been the culmination of unmatched excellence and it aims to identify the best talents across various countries. Do you think you have the talent? Then what are you waiting for? Come, compete and conquer!!! Events Galore at Kurukshetra 2012: OPC Debugging K!Millionaire Chaos Theory Poseidron Math Modelling Cerebra Peepli Live Electrowarriors Aero Modelling K!Idol Alcatraz Innovate Fox Hunt Rumble in the Junk Robowars And many more, check out http://krk.org.in/1event for details!!! Workshops &lt; at &gt; Kurukshetra 2012 Scalable Vector Graphics Learn Organize Lead Auto Anatomy Caricature Astrophotography Autobotics Self-balancing bots For further details, Visit http://krk.org.in/1wrps Guest Lectures Want to hear the “Father of Wifi” Vic Hayes talk on “Innovation Journey of Wif</pre> hasini 2012-01-22T10:59:42 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7774 <pre> This is a robotics workshop and deals with the design, calibration of a line-tracer robot. It also meets the following specification match: wall tracing, line tracing and edge detection. (It’s basically a lower end robotics workshop when compared to Self-Balancing Robot.). The workshop is done by a partnering group called MBS Group. The link of Autobotics is as follows: http://krk.org.in/1autobot </pre> hasini 2012-01-15T15:35:02 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7773 <pre> The most advanced automatic locomotive robot (2 wheeled self balancing electric machine) that operates with a high precision sensor called the ‘Gyroscope’. It involves in design, construction, programming, demo of the Self-balancing Robot followed by hands-on. As it’s the 1st of its kind in history of k! The link of Self-Balancing Robot is as follows: http://krk.org.in/1selfbots </pre> hasini 2012-01-15T15:34:17 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7772 <pre> Click on the "Official LEGO Belville website" in LUGNET header, and it redirects you to the LEGO Friends site. So I guess Belville is coming back in the form of the LEGO Friends. [JOHN] </pre> John 2012-01-10T19:02:00 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7771 <pre> K!onstructor-Kurukshetra 2012, CEG Tired of playing the same boring video games? Well, here is a live one with sweeeett prize money! For the first time in Kurukshetra, the techno-management fest of College of Engineering, Guindy, Anna University, we introduce a semi-autonomous robotic event. The manual bot has to pick and place objects on the autonomous bot which will trace the path to the deposit point. Main criteria for judging: Ingenuity and Creativity. Deadline:January 15th 2012 For more details follow the below link : http://kurukshetra.org.in/2012/#!/Events/Robotics/Konstructor.k </pre> anupamakannan 2011-12-20T15:39:43 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7770 <pre> Hey all! Tired of playing the video games on your phones or tablets? When G-one could get a chance to live, the Angry Birds deserve one too! We here at Kurukshetra give mechanical life to these best selling creatures to pump the same gaming adrenaline in a robotics event. Be a part of the first EVER robotic version of Angry Birds ! Total Prize money : INR 35,000 Learn more &lt; at &gt; http://kurukshetra.org.in/2012/#!/Events/Robotics/Angry-Bots.k </pre> hasini 2011-12-20T12:46:26 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7769 <pre> Designer’s Quest is the robotic event of Kurukshetra, CEG, Anna University.This is a one of a kind robotics event for the those who dare to be creators. 'Designer's Quest' is not about heated confrontations between bots. Not many rigorous requirements for you to fulfil.Here innovation and aesthetics take the upper hand. Enjoy the ride and let your creativity run wild! Come up with your own design and indulge your fantasies. See your creation come ALIVE....!!!The final destination awaits the fittest in mind. "Innovation distinguishes a leader from a follower" -Steve Jobs Which one are you? Total Prize money : INR 30,000 Deadline: 5th JAN 2012 Problem Statements are up!!!!!!!!!! For further details visit:http://kurukshetra.org.in/2012/#!/Events/Robotics/DQ.k ---------------------------------------------------------------------------------------------------------------------------- Tags: if the site asks for tags.. Use these ke</pre> hasini 2011-12-20T12:45:48 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7768 <pre> Dear Mr. Putz: I am having the same problem of "A critical error has occurred" with Widows Vista. I have deleted the "Ris 2.0mov.#res" file but the same critical error occurs. Any suggestions? Steve Putz wrote: </pre> rb95403 2011-11-03T21:15:04 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7767 <pre> I have constructed a cable to use a PC Parallel Port and have written a small C# program to control the 9750 / 1093 Technic Interface A. I have a description of the cable and source code on http://lgauge.com. </pre> Tom Cook 2011-10-28T23:37:17 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7766 <pre>I want to thank everyone who participated in this year's SMART display at BrickCon. It was absolutely amazing! We couldn't have done it without everyone's help. Every element was crucial, and worked amazingly! Named "BallMageddon" because either it was going to be a catastrophic failure, or a spectacular exhibit that everyone who saw it would remember for a LONG time! I'm very pleased to say it was the latter! Here's who contributed: Gus designed the display and an amazing 'wave' that carried the balls in front of the display. Kyle built the final lift that brought the balls into the display, as well as the sorter that took the balls coming out of the display, and returned them to their proper bins. Andrew built the "rainbow stairs", one of the two most commented on parts of the display, which took the balls coming out of the display and gave them their initial lift to get them rolling towards their destination. Sean built a wonderful ball escalator that took the balls from near ground-level and got the</pre> David Schilling 2011-10-12T01:07:11 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7765 <pre>Hi all, those who would like to follow our new project, please go to www.convict.lu/Jeunes/RoboticsIntro.htm and follow the "Casemates project blog". The idea is to design and program a robot that can navigate through the casemates, which are sorts of caverns beneath the city of Luxembourg, left behind by old military occupants (French -Vauban 17th century-, for instance). As our boarding institution is built upon an old vestige of a fortress, we still have an access to some casemates that have never been explored. In this project, we will combine metallic Tetrix and LEGO Mindstorms parts, as a very robust construction is needed to overcome the difficult topography. (Note that Tetrix robots may be Mindstorms-controlled and is compatible with the geometry of the LEGO parts.) http://www.tetrixrobotics.com/ http://news.legoeducation.us/Newsroom/Item.aspx?art=2752 (Also note that the blog is entitled "Boulette Institute of Technology", a funny student usurpation of the great East-coast institute's name. To</pre> Claude Baumann 2011-10-11T09:13:31 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7764 <pre> Hi all, I came across Philippe Hurbain's excellent website sometime ago. On the Motor Internals page, there is a link that points to Ryo Watanabe's page containing information on NXT motor parameters. On that page, the torque constant (Kt) and back-EMF constant (Kb) have rather different values. In theory, they are supposed to be numerically identical when using SI units. Naturally, some level of empirical error is expected when data is derived experimentally. However, the discrepancy between the two values is large enough for one to question the validity of the data used for deriving the motor constants. http://web.mac.com/ryo_watanabe/iWeb/Ryo%27s%20Holiday/NXT%20Motor.html http://web.mac.com/ryo_watanabe/iWeb/Ryo%27s%20Holiday/NXT%20Motor.html I've emailed Prof Watanabe a couple of times already without getting a reply. Could anyone shed some light on this, please? Thanks. Cheers Hippie </pre> Hippicurean 2011-06-12T15:38:55 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7763 <pre> Threre are two fixes to the "A critical error has occurred" problem. One fix is to uninstall the latest Quicktime and install the older Quicktime version from the RIS CD (or any Quicktime version older than version 7). Another fix (described earlier in this thread) is to remove the file "Ris 2.0.mov.#res" from the local Temp directory right before starting the RIS software. I use the following batch file to do this. -------------------------------- &lt; at &gt;echo off echo this script runs the RIS LEGO Robot software echo after deleting a temporary movie file that interferes with Quicktime working correctly del "%temp%\RIS 2.0.mov.#res" set dir=%PROGRAMFILES%\LEGO MINDSTORMS\RIS 2.0 if exist "%dir%" goto DOIT set dir=%PROGRAMFILES(x86)%\LEGO MINDSTORMS\RIS 2.0 if exist "%dir%" goto DOIT echo did not find any RIS installation goto END :DOIT echo found "%dir%" cd "%dir%" LaunchRis2.exe :END -------------------------------------------------------------- Steve Putz www.RoboticsLearning.com </pre> Steve Putz 2011-06-02T16:42:37 http://permalink.gmane.org/gmane.comp.hardware.lego.robotics/7762 <pre> I know what the answer to this one is! I solved the "A critical error has occurred" problem with Robotics Invention System 2.0 by uninstalling QuickTime and installing the QuickTime version from the RIS 2.0 disk. Don't forget to delete the QuickTimeUpdater.exe or you will be doing this again! Good luck! Morten H Pedersen wrote: </pre> astornet 2011-06-02T02:44:21 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.hardware.lego.robotics