 | | Enhanced standard NXT firmware updates
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I have uploaded a pre-release of a new enhanced NBC/NXC firmware (1.06a) which you may want to try out. It has a new arrop opcode which supports a number of useful array operations. OPARR_SUM, OPARR_MEAN, OPARR_SUMSQR, OPARR_STD, OPARR_MIN, (...) (17 years ago, 11-Jan-08, to lugnet.robotics.nxt)
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| | Re: CAN you believe it... The next Robotics game.
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In lugnet.org.ca.rtltoronto, Jeff Van Winden wrote: <snip> (...) and... OMG!!!! I can build big 'bots again!!!! Yippee!!!!!!! (cause we're not putting much of a size/weight restriction out there, are we? :) if we are, I vote for 18 inches x 18 (...) (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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In lugnet.org.ca.rtltoronto, Jeff Van Winden wrote: <snip> (...) I still ahve the playfield walls that can be easily set up anywhere on top of a smooth floor. that'd give us an 8x8 arena with white walls--if the cans are darker, a light sensor may (...) (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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(...) The Focus is finding the Heavist can, I think part of the challenge will be finding the cans in general... I imagined a 3 meter by 3 meter (just for you Iian) Practically 10' x 10' for you imperial lovers out there. With maybe 20 - 30 Cans. (...) (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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Nice one Jeff- Question on the "can density", which will of course depend on the playfield size and the # cans on the field.. If the focus on finding cans, or finding the largest cans? If the later, I might suggest wrapping the bottom of each can (...) (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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(...) Forgot one thing... Time Frame for the Game: How does late March, Early April sound for everyone?? Jeff VW (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | CAN you believe it... The next Robotics game.
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Ok, so I meant to do this months ago, and I have just been swamped.. So with out further ado, here are my thoughts on our next game: ***...***The Can Game***...*** Premise of the Game: Build a robot that can find the heaviest can in the play field. (...) (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: Cleaning Battery Terminals
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In lugnet.robotics, Mark Riley wrote: <snip> (...) Ooooh... wireless remotes! Nice! Throw it at me and I'll test it when ready :) Dave K (17 years ago, 10-Jan-08, to lugnet.robotics, lugnet.trains)
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| | Re: Cleaning Battery Terminals
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(...) I just finished a second RCX and while the terminals aren't as shiny as the previous RCX, the RCX fired right up after I reassembled it. The crud on this latest RCX's terminals was bluish green so I suspect the outer silver layer got eaten (...) (17 years ago, 9-Jan-08, to lugnet.robotics, lugnet.trains)
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| | Re: Cleaning Battery Terminals
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In lugnet.robotics, Mark Riley wrote: <snip> (...) That's good news! I'm going to try this soon on some of my 4.5/9 volt battery boxes. As far as I can see, the vinegar won't harm the plastic yet should do a good number on the corroded contacts. (...) (17 years ago, 9-Jan-08, to lugnet.robotics)
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| | Cleaning Battery Terminals
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I haven't posted here in a while, my RCXs having been on a hiatus. Well, after breaking them out again, I discovered that I had foolishly left alkaline batteries in some of them and of course some of the batteries had started to leak. This caused (...) (17 years ago, 9-Jan-08, to lugnet.robotics)
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| | Java for NXT
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The 0.5 beta release for Windows and for Linux is now on the sourceforge web site. (URL) changes and new features include: - Garbage collector - Execute code from flash - Automatic defrag of file system - Greatly improved Bluetooth support including (...) (17 years ago, 9-Jan-08, to lugnet.robotics.nxt)
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| | Re: 8479 Code Pilot Barcode Analysis and Code Sheet
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(...) Alex Christensen posted a PDF file with these same bar codes back in February of 2007: (URL) based his work on Doug Eaton's extremely helpful VLL page: (URL) Hansen (17 years ago, 7-Jan-08, to lugnet.robotics.codepilot, lugnet.technic)
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| | Re: Hi-speed port communication
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I posted a zip to the NXC samples page containing a pair of programs that show how to send a message from one NXT to another over a wire connected between port 4 on both NXTs. (URL) Hansen (17 years ago, 7-Jan-08, to lugnet.robotics.nxt)
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| | Re: Hi-speed port communication
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(...) Hi all, the physical connection of NXTs via RS485 is just the first half of the solution... Remeber, at 2-wire RS485 you can have one master only and up to 31 slaves. To address each slave, you need to implement a special protocol which (...) (17 years ago, 5-Jan-08, to lugnet.robotics.nxt)
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| | 8479 Code Pilot Barcode Analysis and Code Sheet
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Dr. Soubhi Sabbagh contacted me recently to get information on Code Pilot, and collecting various sources he was able to analyse and create a PDF code sheet. " So, I decided to study the bar code algorithm and I co-operated with www.dlsoft.com until (...) (17 years ago, 5-Jan-08, to lugnet.robotics.codepilot, lugnet.technic)
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| | Re: Hi-speed port communication
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Hi Ross, (...) it should be possible to use RS-485 as a bus, i.e. connect several NXTs with one cable. You need to make the cable yourself, though, and you may need some termination on the ends. Jürgen (17 years ago, 4-Jan-08, to lugnet.robotics.nxt)
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| | Re: Hi-speed port communication
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(...) Thanks John. I agree that from the electrical point of view, just connecting one port 4 to another port 4 should just work with no hardware other than the cable (for short lengths, like the cables that come with the NXT). For longer cables, a (...) (17 years ago, 5-Jan-08, to lugnet.robotics.nxt)
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| | Re: Hi-speed port communication
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(...) Two. Input port #4 fills up pretty quick. Should give a nice performance boost over BT though. (17 years ago, 4-Jan-08, to lugnet.robotics.nxt)
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| | The Unofficial LEGO MINDSTORMS NXT Inventor's Guide
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I'm having a book signing this month for my new book The Unofficial LEGO MINDSTORMS NXT Inventor's Guide (No Starch Press), and I decided to officially announce the book here on LUGNET and invite everyone who lives in the Round Rock, Texas area to (...) (17 years ago, 4-Jan-08, to lugnet.announce, lugnet.robotics, lugnet.robotics.nxt, lugnet.events, lugnet.loc.us.tx, FTX) !
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