 | | Boosting power in a gear train
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I have a gear train that is driven by a very weak input, very small torque. There are some places in the gear train where I have some worm gears driving some 'regualr' gears. As I go along the gear train, I boost the output as much as I can with (...) (18 years ago, 20-Mar-07, to lugnet.technic, lugnet.robotics)
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| | Re: Microsoft Robotics Studio
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(...) Please let me know if you have much success. Several of us working on a robotics project tried the Oct and Nov 2006 releases and could not get the out-of-the-box Lego NXT demo to stay connected for more than about 60 seconds, even after hours (...) (18 years ago, 19-Mar-07, to lugnet.robotics)
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| | Re: Enhanced standard NXT firmware
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... (...) Hi John, I just tried to load it and just tested the "Try-me" light sensor. It worked fine. Not so much help, but I can try some more another day. Good work. Rasmus (...) (18 years ago, 19-Mar-07, to lugnet.robotics.nxt.nxthacking, lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Could not upload program output file to PC
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(...) In my experience, this sort of problem occurs when the file size is zero (or, more precisely, it contains zero bytes) or it is not properly closed. Can you send me a copy of your program so I can see if it has any problems? John Hansen (18 years ago, 19-Mar-07, to lugnet.robotics)
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| | Could not upload program output file to PC
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Hi, I am a new user of the Lego robot and would like to ask a question. I ran into a problem with uploading a file from the NXT to my PC via USB which I did not understand why. Basically I have written a program that reads light sensor values (port (...) (18 years ago, 19-Mar-07, to lugnet.robotics)
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| | Re: Enhanced standard NXT firmware
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(...) I would have liked to have one permanently, but it seems a little steep. Last summer I got a limited edition (32KB or something) along with the an AT91 evaluation board. (...) Perhaps Section 5.1 is useful: (URL) I just tried to post but it (...) (18 years ago, 17-Mar-07, to lugnet.robotics.nxt.nxthacking, lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Enhanced standard NXT firmware
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(...) It actually was not a very big deal. I was familiar with the firmware source code since I had looked at it quite a bit since it was released, trying to figure out how to get it to compile with GCC. All the RIC bug fixes were things I figured (...) (18 years ago, 17-Mar-07, to lugnet.robotics.nxt.nxthacking, lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Enhanced standard NXT firmware
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(...) <snipped description> Holy crap John! You've been really busy! For anyone poking around in this forum, I can say that what John has done is pretty significant. I have written my own firmware for the brick so I know how much work must have gone (...) (18 years ago, 17-Mar-07, to lugnet.robotics.nxt.nxthacking, lugnet.robotics, lugnet.robotics.nxt)
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| | Enhanced standard NXT firmware
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Over the past couple days I have used the IAR Embedded Workbench to implement some enhancements and bug fixes for the standard NXT firmware. The bug fixes are as follows: 1. RIC drawing code incorrectly checked the size of the OP_LINE structure for (...) (18 years ago, 16-Mar-07, to lugnet.robotics.nxt.nxthacking, lugnet.robotics, lugnet.robotics.nxt)
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| | Connection to Bluetooth
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Dear All, I have spend a lot of time to get connection with Bluetooth using Bricx. I using the latest nxt software! I have connection with the NXT with Bluetooth, I see on the display of the NXT "<>" After starting Bricx Command Centre I get the (...) (18 years ago, 16-Mar-07, to lugnet.robotics, FTX)
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| | Re: Bricx Command Centre and the NXT
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(...) BricxCC uses the NXT Fantom API layer to communicate with the NXT via both bluetooth and USB. If you have the NXT Fantom drivers installed properly (which, if you can communicate with the NXT via the standard NXT software, you must) then when (...) (18 years ago, 15-Mar-07, to lugnet.robotics)
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| | Re: BricxCC release 3.3.7.16
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(...) Please respond with detailed information regarding your configuration. Are you using the serial tower or are you using the USB tower? Do you have the firmware already installed on your RCX brick? What does the LCD screen look like when your (...) (18 years ago, 15-Mar-07, to lugnet.robotics)
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| | Re: Where to find troubleshooting guide for installing the NXT Fantom
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(...) There is a link to it in the NXT News section of the main BricxCC page. (URL) Hansen (18 years ago, 15-Mar-07, to lugnet.robotics)
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| | Where to find troubleshooting guide for installing the NXT Fantom
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Dear All, I found this text on the forum about the Bricx Command Centre "I put together a short troubleshooting guide for installing the NXT Fantom Drivers on a windows box" Wher can I find this? Regards Jan Kromhout Hellevoetsluis-NL (18 years ago, 15-Mar-07, to lugnet.robotics)
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| | Re: BricxCC release 3.3.7.16
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There are several possible reasons for your problem(s). * Is COM1 the right port? If it isn't just before the main window of BricxCC is opened you are informed communication with the brick was unsuccessful and that you'll not be able to download (...) (18 years ago, 15-Mar-07, to lugnet.robotics)
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| | Bricx Command Centre and the NXT
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Dear All, I have installed a Belkin Bluetooth USB-adapter. The Bluetooth connection is installed as Com11. When I start the Bricx Command Centre the max Comport is "9" I can't change the comport of the Bluetooth adapter. And I switch the check bock (...) (18 years ago, 15-Mar-07, to lugnet.robotics)
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| | Re: BricxCC release 3.3.7.16
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And when i am trying to download the program to the bricx it says no (or invalid) reply from rcx (...) (18 years ago, 15-Mar-07, to lugnet.robotics)
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| | Re: BricxCC release 3.3.7.16
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Hallo, I am using your bricxcc version 3.3.7.16 and my brick version is RCX 1.0 I have some problem here with the task transfer! when i start the programm it ask me witch port do use and and my brick type and my firmware. i fill it with the (...) (18 years ago, 15-Mar-07, to lugnet.robotics)
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| | Re: Robot events at BrickFest 2007
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i just checked the schedule, looks like the Mosaic speed build ends at 12:30 and the sumo competition starts at 1pm. that gives me 30 minutes to get something built and programmed. you better bring your batteries, cause now i do have time to make (...) (18 years ago, 14-Mar-07, to lugnet.events.brickfest, lugnet.robotics)
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| | Re: Robot events at BrickFest 2007
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(...) Sounds like a personal problem to me, Bob. I, on the other hand, can give my presentations, while building the Lego Star Destroyer entirely with my left hand, while my right hand programs my Sumo'Bot to destroy all who oppose me in the Sumo (...) (18 years ago, 14-Mar-07, to lugnet.events.brickfest, lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) That's exactly what I'm trying to achieve. I hadn't actually written out any pseudo code, but it is (almost)exactly the way I had thought it through in my head. My main problem is that I think up what I'd like to do and then have to scour the (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) I guess there is a define statement missing that goes something like #define Drive(l,r) SetPower(OUT_L, l); SetPower(OUT_R, r); On(OUT_L+OUT_R) although the Programmer's guide doesn't mention anything about negative values being a possibility (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) According to the NQC Programmer's Guide the Cybermaster wait time is in 1/10 seconds. This is consistent with my CyberMaster's behaviour when I set the threshold to a high value and the if routine is executed. I hadn't considered using sounds (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | More Power Functions info released
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Some info I can now release, in addition to what I've posted here: (URL) Power Functions large motors (URL) use the same metal motor inside as the NXT motors. The motor driver chip in the IR RC receiver (URL) is the same chip as the NXT motor driver (...) (18 years ago, 13-Mar-07, to lugnet.technic, lugnet.robotics)
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| | Re: Robot events at BrickFest 2007
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well if i ever get any time to make something i may enter. and hopefully i wont be leading any sessions during the sumo session. bob (...) Bob Kojima ko@fial.com Fial Incorporated 710 Center St Oregon City, OR 97045 503.607.1940 www.fial.com (18 years ago, 13-Mar-07, to lugnet.events.brickfest, lugnet.robotics)
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| | Re: Robot events at BrickFest™ 2007
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(...) Considering the VAST number of responses I've already received, you might just win by putting your NXT brick on the sumo table! Of course, if you add motors and wheels, and drive forward without falling off the table, you'd even get the bonus (...) (18 years ago, 13-Mar-07, to lugnet.events.brickfest, lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) I found again an old code I wrote for Cybermaster to do avoiding based on tacho slowdown. The trick is indeed to drive at a low power level, or the wheels simply sleep and there is not enough slowdown to be reliable. Philo ---...--- task main (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | lejos on UBUNTU linux?
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Hi, I'm trying to build the lejos release on UBUNTU linux and I get the following error. Any help appreciated. Thanks, Ted pawlicki@robotnik:~/lego/build$ ant Buildfile: build.xml clean: [echo] saving existing files to .bak files libnxt: [taskdef] (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | Re: Robot events at BrickFest™ 2007
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Ooh, NXT-Sumo! David, I sure hope you'll be running your "Getting to know the NXT" breakout session BEFORE the sumo contest is held! My NXT remains sealed and unopened on a shelf in my Lego room. I'll bring it, and maybe I'll learn enough to be (...) (18 years ago, 13-Mar-07, to lugnet.events.brickfest, lugnet.robotics, FTX)
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| | Re: TachoSpeed.nqc
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(...) The question you need to answer for yourself is this: Do I want my robot to to potentially execute both if blocks in sequence or do I only want the second if block to execute if the first condition is known to be false? If you only want the (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) For the RCX wait times are in 1/100 of a second. Is that the same for the Cybermaster? If so the reverse and turn times are a little short (as well as the motor ramp up period). I could see how it would be difficult to notice the robot backup (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) Sorry. I meant to say 'the brick never executes the if statement'. (...) I don't see 1) how I could make an if/else statement or 2) what the benefit would be. 1) If I make an if/else statement isn't 'else' executed always if 'if' is not true? (...) (18 years ago, 12-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) You assumed correctly. Without the wait the if statement is always executed immediately. I see what you mean: by taking the wait out of the start of the loop the sensors are checked more frequently. That doesn't solve the riddle though, (...) (18 years ago, 12-Mar-07, to lugnet.robotics)
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| | NXT now has atan2 function block
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Download atan2 (and atan, sin, cos, sqrt blocks) at www.convict.lu/Jeune...sIntro.htm for NXT-G. Please report any bugs. (18 years ago, 12-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) I don't really understand what you mean when you say "the brick doesn't do anything". Can you be more specific? (...) They will both be executed in sequence if at the time the second if statement reads the TachoSpeed setting on OUT_L it (...) (18 years ago, 12-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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Doesn't this make more sense. (...) The way it was written you hardly ever checked the TachoSpeed because most of the time was spent in the Wait(20). I assume the Wait is in there to allow the robot to get up to speed before you start checking for a (...) (18 years ago, 12-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) I 've done just that, but the problem I describe persists: When the TachoSpeed reported by watching the brick is around 57, the brick doesn't do anything if the response value is set to 62. It does at 66 or 67 but that also makes it impossible (...) (18 years ago, 12-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) The problem is almost certainly that your program only runs for about 2 tenths of a second. If you want the program to run forward continuously and execute a special behavior if at some point during the execution of the program the TachoSpeed (...) (18 years ago, 11-Mar-07, to lugnet.robotics)
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| | Re: NXT Turkey MOC
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Really nice! I recently built the original bug from the descriptions in the "10 Cool Lego Mindstorms RIS 2 Projects' book but the program files that come with it are all lsc files. I'm having a hard enough time learning NQC to try to make sense of (...) (18 years ago, 10-Mar-07, to lugnet.robotics)
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| | TachoSpeed.nqc
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I'm trying to write a simple routine that uses the TachoSpeed value to see if my Cybermaster has run into something. I'm trying this on tiled floor, by making the bot with tank threads run into the wall, but only very occasionally does it actually (...) (18 years ago, 10-Mar-07, to lugnet.robotics)
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| | Robot events at BrickFest™ 2007
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There will be a number of interesting robotic activities at (URL) BrickFest™ 2007>, which is fast approaching. Don't forget, if you haven't registered yet but wish to attend, the preregistration deadline is March 15th. Here's a summary of the (...) (18 years ago, 10-Mar-07, to lugnet.events.brickfest, lugnet.announce, lugnet.events, lugnet.fun.community, lugnet.robotics, FTX) !
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| | Real Robots Article
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I've just posted an article published in this month's Electronic Design Magazine about the LEGO Mindstorms NXT and Real Robots on my Blog (URL).For design inspiration there's a small video clip of a Handy Cricket Line Following robot for your (...) (18 years ago, 10-Mar-07, to lugnet.robotics)
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| | NXT Turkey MOC
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To learn studless construction and building with the NXT I have been reworking all my RCX robot designs. After what, almost a year now, I think I'm finally getting it. This week was the first time I successfully designed a NXT robot in my head (...) (18 years ago, 9-Mar-07, to lugnet.robotics) !
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| | Re: IR tower problems on a laptop with NQC
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(...) Jordan, I only have one suggestion that may, or may not be useful. I'd suggest you try a fresh battery in the tower. I know you said it works on another PC. Sorry, that's the best I can do. :) Steve (18 years ago, 9-Mar-07, to lugnet.robotics.rcx, lugnet.robotics, lugnet.robotics.rcx.nqc)
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| | IR tower problems on a laptop with NQC
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I have a used Dell Inspiron 8200 laptop that is old enough to have a serial port. I'm trying to use a serial port IR tower to program an RCX and am having problems. When I plug in the tower the green light turns on immediately, which AFAIK is not (...) (18 years ago, 9-Mar-07, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc, FTX)
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| | Microsoft Robotics Studio
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Has anyone had any luck with the Microsoft Robotics Studio with the RCX / RIS 2.0 ??? I have been able to write a program that uses the direction control to control a basic roverbot moving left/right forwards/backwards and another program that (...) (18 years ago, 7-Mar-07, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Power Functions Tower Crane
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(...) Yes ;o) (...) I have yet to perform the measurements, but I can tell you that the big motor is really powerful (comparable to NXT motor), with a rotation speed around 200 rpm. The other one is quite good too, should be significatively more (...) (18 years ago, 7-Mar-07, to lugnet.robotics)
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| | Re: Power Functions Tower Crane
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Wow, so you are also one of the chosen ones to make our collective mouths water... Would it be hard (or legally possible at this time) to add these motors to your lovely 9v motor comparison on your site to give us an even better idea of what they (...) (18 years ago, 7-Mar-07, to lugnet.robotics)
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| | Power Functions Tower Crane
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A 1.2m (URL) tower crane>, built to exercise the new remote controlled Power Functions motors that are to be available in late 2007 sets, such as the (URL) 8275 Technic Bulldozer> (URL) Enjoy! (URL) Philo> (18 years ago, 7-Mar-07, to lugnet.announce.moc, lugnet.technic, lugnet.robotics, FTX) !
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| | Re: NXT on Linux.
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(...) Hello GiP, (...) I am very interested by your tool. if you can send it to me or put it somewhere on internet, it would be cool. thanks, JLB (18 years ago, 6-Mar-07, to lugnet.robotics)
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| | Re: NXT on Linux.
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(...) I really like this, and may give it a go. Please make it available somewhere... I take it the -s lists the BT devices in terms of addresses that can be used with the -a command? If you need somewhere to host the download while you get your (...) (18 years ago, 6-Mar-07, to lugnet.robotics)
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| | NXT on Linux.
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Hi, I just discovered this forum and I found a lot of interesting things.... I work on linux and I found that there is very little around on how to use NXT with BlueTooth on Linux, so I started writing my own set of tools. I have finished a first (...) (18 years ago, 6-Mar-07, to lugnet.robotics)
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| | Re: Robo Quad - Stage One
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(...) Slight snippage has occurred ;o) Eric, The depth of thinking and your skill at building these Robo Quads is wonderful. I will follow this project, too. Since I'm a limited technic person, and am just getting exposed to NXT, I doubt I could (...) (18 years ago, 6-Mar-07, to lugnet.robotics, lugnet.technic, FTX)
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| | Re: Joystick Controls with new Power Function RC handsets
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(...) D'oh! forgot the deep link: (URL) (18 years ago, 5-Mar-07, to lugnet.technic, lugnet.robotics)
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| | Joystick Controls with new Power Function RC handsets
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With the new Power Function IR RC handsets it is possible to create joystick controls by adding a few extra pieces. The controls are tank drive by default so a few levers are required to turn the sideways joystick movement into forward and back (...) (18 years ago, 5-Mar-07, to lugnet.technic, lugnet.robotics, lugnet.announce.moc, lugnet.loc.uk)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) AFAIK they will not be in the 2007 ferris wheel, dinosaur or bulldozer kits. I don't have any news about a release date, nor about a place to purchase them. I eagerly await developments and will let you know as soon as the information is (...) (18 years ago, 5-Mar-07, to lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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Will those cords be part of the sets or have to be purchased separately? linmix (...) (18 years ago, 5-Mar-07, to lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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Hi Rob, (...) I can't give too many details at the moment, but there WILL be a compatibility between both systems, built in the extension cords. Philo (18 years ago, 5-Mar-07, to lugnet.technic, lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) OK, I'm claiming retardism on my part for this next question: I just don't see the compatibility between PF and 9V, can you elaborate? -Rob www.brickmodder.net (18 years ago, 5-Mar-07, to lugnet.technic, lugnet.robotics)
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| | Re: Robo Quad - Stage One
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Hi Eric, this is a really interesting project. I'll promise to follow your progress, even though I can't join. This project will push Mecha building to a new stage! Best wishes (URL) Marco> (18 years ago, 4-Mar-07, to lugnet.robotics, lugnet.technic, FTX)
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| | Foo
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remove Thomas Judge Senior Consultant IT Architect IBM Global Business Services, Region North, EMEA Direct Dial: +44 1926 462644, Mobile: +44 7843 328733, UK Internal: 662644, MobX: 271472 (18 years ago, 3-Mar-07, to lugnet.robotics)
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| | Robo Quad - Stage One
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(URL) Robo Quad - Stage One> Powered Front Paws History As you may or may not know, I have been studying rolling walking quad hybrids. (URL) Wrecker>> (URL) Controlled Blue Quad>> (2 URLs) Controlled Red Quad>> (URL) Quad>> After working on several (...) (18 years ago, 3-Mar-07, to lugnet.announce.moc, lugnet.robotics, lugnet.technic, lugnet.build.mecha, FTX) !
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) yep you're right. i allready have a few mods planned. i'm going to see if i can't fit a step motor into a train motor case among other things. ondrew (18 years ago, 3-Mar-07, to lugnet.technic, lugnet.robotics)
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| | Re: BrickFest™ 2007 - NXT-only Sumo competition
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(...) I wish I could...but, right now I am commuting 110 miles for work to a new job and the week of PDX I will be at a convention in Las Vegas... so life is pretty crazy ...but, you never know, maybe a midwest robot design will show up in the (...) (18 years ago, 3-Mar-07, to lugnet.events.brickfest, lugnet.robotics, FTX)
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| | Re: BrickFest™ 2007 - NXT-only Sumo competition
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(...) Thanks for the suggestion, but this was carefully considered before the rules were drafted. If someone has an RCX and wants to enter a robot competition, they are very welcome to enter the Robotic Easter Egg Hunt (URL). While I'm sure that an (...) (18 years ago, 2-Mar-07, to lugnet.events.brickfest, lugnet.robotics, FTX)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) All the pics should be visible now, at (URL) large motors have 2 half-depth pin recesses on opposite sides. They are designed primarily for a Technic beam interface because of their high torque - other models might fall apart! I held them in (...) (18 years ago, 2-Mar-07, to lugnet.technic, lugnet.robotics)
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| | Re: BrickFest™ 2007 - NXT-only Sumo competition
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(...) Dave, We just had a sumo contest last weekend in Fort Wayne - the Northeast Indiana Robot Games. The stock class that used to allow parts from only 1 RCX based Mindstorm kit was changed to allow the NXT to compete against the RCX. NXT based (...) (18 years ago, 2-Mar-07, to lugnet.events.brickfest, lugnet.robotics, FTX)
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| | RE: Robolab RCX Control Pad
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Your best bet is to post this request on the CEEO web site. Someone there will surely answer. AFAIK, it's intended to be supported in all environments. (18 years ago, 28-Feb-07, to lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) Man, I'm excited. A few design flaws I can't understand though: Why the cable nub coming out of the cable's brick? There has to have been a way to avoid that. On the large motor, why all that wasted space on the drkGry part that could have pin (...) (18 years ago, 28-Feb-07, to lugnet.technic, lugnet.robotics)
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| | Robolab RCX Control Pad
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Does anyone know what versions of Robolab support the RCX Control Pad? I have tried it with RoboLab 2.5, 2.54B & C, and 2.9. In all cases Robolab hangs or I get VI execution errors. I want to use this for an outreach project where school chirdren (...) (18 years ago, 28-Feb-07, to lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) Thank you! I like the small(er) size of the motors; do the large motors also have a stud recesses down one side? It actually looks in both bases as if the pin connections are fairly well placed. I'm not overjoyed with the "hard-wired" nature (...) (18 years ago, 28-Feb-07, to lugnet.technic, lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) Hmm, I will add my voice in saying thanks for the pics. Definitely interesting. I agree that I would prefer to have connector terminals on active bricks, and not permanently attached cables. What also I find awkward is that we now have (...) (18 years ago, 28-Feb-07, to lugnet.technic, lugnet.robotics)
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| | RE: cool robot
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Wow, that's very cool! It's hard to get a sense of scale from the video -- how tall is the robot? What technology are you using for the balancing? I would think this to be quite difficult with the standard NXT set, but maybe possible with some (...) (18 years ago, 28-Feb-07, to lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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I searched for the dinosaur set on Brickshelf and got a fuzzy pic of the box. Apart from the elements you mention there appears to be a white box which could be a sound system. Can you explain what it is and how it ties into all of this? linmix (...) (18 years ago, 28-Feb-07, to lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) I can't say that I am a fan of the "permanent wires" or the connector end itself, but perhaps I just don't like change. I wonder if there will be extension cables for sale? Actually the more I think about it, the more I forsee the attached (...) (18 years ago, 28-Feb-07, to lugnet.technic, lugnet.robotics)
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| | BrickFest™ 2007 - NXT-only Sumo competition
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BrickFest™ 2007 LEGO Mindstorms Robot Competition NXT-only Sumo ===...=== The Challenge: Build a Sumo robot using only the parts in one standard NXT set. (Only set #8527; sorry, not the education version, set #9797.) The Rules: This event is a (...) (18 years ago, 28-Feb-07, to lugnet.events.brickfest, lugnet.announce, lugnet.events, lugnet.fun.community, lugnet.robotics, FTX) !!
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| | Re: BrickFest™ PDX 2007 - Robotic Easter Egg Hunt
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(...) There have been inquiries as to the number of eggs that will be used. The answer is that "one bag" of eggs will be scattered around. The bag pictured is a 9.2-ounce bag, but so far this year I've only been able to find 11-ounce bags. The (...) (18 years ago, 28-Feb-07, to lugnet.events.brickfest, lugnet.robotics, FTX)
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| | cool robot
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it's not lego, but here's a robot I'm working on: (URL) I think a balancing biped can be built with NXT. It's an open challenge! -dbm (18 years ago, 27-Feb-07, to lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) OK, here's a few while you wait :-) Basic system as used in the creator dinosaur set 4958 (inc handset & battery box): (URL) IR receiver: (URL) motor (inc plug top): (URL) motor (inc stud recesses on bottom and plug bottom): (URL) (18 years ago, 27-Feb-07, to lugnet.technic, lugnet.robotics)
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| | Re: FindLight
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(...) Use FastTimer instead of Timer for 10ms resolution. I should have remembered that last night. John Hansen (18 years ago, 27-Feb-07, to lugnet.robotics)
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| | Re: FindLight
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Thank you for your well commented adaptation. I'm still experiencing the same problem even though the values for the different variables as shown by 'watch the brick' check out. The problem is in a different place. I wrongly assumed wait 'ticks' and (...) (18 years ago, 26-Feb-07, to lugnet.robotics)
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| | Re: FindLight
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(...) I accidentally put a semicolon on the #define line above which is wrong. The program I posted will not compile unless the semicolon is removed. My apologies. It's what I get for posting late at night. John Hansen (18 years ago, 26-Feb-07, to lugnet.robotics)
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| | Re: FindLight
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(...) //findlight.nqc #define A OUT_A #define C OUT_C int maxlight; int light; int time = 0; #define TURNTIME 500; //change to accomodate 1 turn #define ROTATE_CLOCKWISE OnFwd(A); OnRev(C); #define ROTATE_COUNTERCLOCKWISE OnFwd(C); OnRev(A); task (...) (18 years ago, 26-Feb-07, to lugnet.robotics)
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| | Re: FindLight
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Thanks. I thought setting maxlight before the 'if' statement would be enough, but moving it closer to the front (before the 'while' statement') did the trick. The bit after the while loop still gives me pain though. I've changed it a bit to be able (...) (18 years ago, 25-Feb-07, to lugnet.robotics)
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| | Re: FindLight
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(...) Looks like you're setting maxlight = SENSOR_2, then testing if (SENSOR_2 > maxlight), which will rarely (if ever) be true, because the value of SENSOR_2 is unlikely to change in such a short time. I think the first maxlight = SENSOR_2 (...) (18 years ago, 25-Feb-07, to lugnet.robotics)
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| | Re: FindLight
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Thanks for the reply. I see I overlooked something significant there. Going over it all again I think I don't need 'light' Also, the parse errors are due to my omitting the ; at the end of each statement I've also discovered that I should put some (...) (18 years ago, 25-Feb-07, to lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) I'm guessing there's a video. If so, I would recommend putting the video in a sub-folder by itself, as it is probably what is causing the delay. ROSCO (18 years ago, 25-Feb-07, to lugnet.technic, lugnet.robotics)
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| | Re: FindLight
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Please try some semicolons on your lines! Chris (...) //findlight.nqc #define A OUT_A #define C OUT_C int light, maxlight, time; int turntime = 500; //change to accomodate 1 turn task main() { SetSensor (SENSOR_2, SENSOR_LIGHT); ClearTimer (0); (...) (18 years ago, 25-Feb-07, to lugnet.robotics)
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| | Re: FindLight
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(...) I don't see where "light" ever gets set. JB (18 years ago, 25-Feb-07, to lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) hey mark, thank you for posting all of this info. i look forward to seeing the gallery but it seems to be taking forever to be moderated. is there a chance you could post some deep links? ondrew (18 years ago, 25-Feb-07, to lugnet.technic, lugnet.robotics)
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| | FindLight
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I'm trying to write a simple program to make a roverbot-like robot seek for light. My basic idea is to use a timer ( Timer(0) ) to keep track of how long the robot has been turning and a variable (time) to remember the moment when the brightest (...) (18 years ago, 25-Feb-07, to lugnet.robotics)
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| | RE: Robolab-Optimizer
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Why not have them do the following experiment? Use the new 100 speed level. Connect a rotation sensor. Loop for power levels in step of 5 from 5 to 100 Wait a little bit for motors to get to steady state speed. Reset rotation count Wait 1 second (...) (18 years ago, 25-Feb-07, to lugnet.robotics)
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| | Robolab-Optimizer
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One of the features of the Optimizer function in Robolab 2.9.2: Brake the motor between PWM pulses so that you get a linear motor behavior (double the number means double the speed) Could anyone elaborate on this to allow a bunch of high school kids (...) (18 years ago, 24-Feb-07, to lugnet.robotics)
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| | Re: Power Functions Element Pics (inc Plugs)
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(...) You probably mean moderated ;) (...) Thanks for the info, can't wait to see the pics. ROSCO (18 years ago, 24-Feb-07, to lugnet.technic, lugnet.robotics)
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| | BricxCC & NBC/NXC News
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The Sourceforge shell service finally came back on line today so I was able to update my web pages again. The official links to beta 27 are up now. I have also uploaded a revision to Danny Benedettelli's fantastic NXC Tutorial (and sample code). And (...) (18 years ago, 24-Feb-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | RICScript
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You may not find this terribly interesting, but I have implemented an RIC to Text converter (a decompiler, if you will) which generates source code for an RIC file in a text format. Soon BricxCC will have support for writing and (...) (18 years ago, 24-Feb-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Power Functions Element Pics (inc Plugs)
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(...) Here are the pictures of the Power Functions elements from the Bulldozer 8275, including pictures of the plugs. (URL) (when modified). You can see it's a 4-wire system. There are basically 2 wires for power and 2 for control. I'll give more (...) (18 years ago, 23-Feb-07, to lugnet.technic, lugnet.robotics)
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| | Re: More IR Bulldozer pics
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1). I am envious... 2). Can you post pictures of the underside of the connector, the battery box connector and the IR connector? I would much appreciate it, thanks. "Brian Davis" <brdavis@iusb.edu> wrote in message news:JDvpqM.JGG@lugnet.com... (...) (18 years ago, 23-Feb-07, to lugnet.technic, lugnet.robotics)
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| | Re: More IR Bulldozer pics
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"Brian Davis" <brdavis@iusb.edu> wrote in message news:JDvpqM.JGG@lugnet.com... (...) (URL) on the gap in the motor housing (between the light bley and dark bley) , it looks like Mark already has taken his motor apart (or dropped it). Oh Mark!?! (...) (18 years ago, 22-Feb-07, to lugnet.technic, lugnet.robotics)
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| | Re: More Power Function MOC pics
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(...) Well spotted Brian :-) The electric elements are those that will feature in the new Bulldozer. The rest of the MOC is parts from my own collection, NOT the rest of the Bulldozer! (that many beams with studs would be too much to hope for :-) ) (...) (18 years ago, 22-Feb-07, to lugnet.technic, lugnet.robotics)
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