 | | straight line differential drive code
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Does anyone have some RCX code to make a simple differential drive (2 independent motor/wheel combinations) with 2 rotation sensors drive straight. I'm sure it's been done many, many times before and I don't want to reinvent the wheel here. NQC or (...) (19 years ago, 31-Dec-06, to lugnet.robotics)
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| | straight line differential drive code
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Does anyone have some RCX code to make a simple differential drive (2 independent motor/wheel combinations) with 2 rotation sensors drive straight. I'm sure it's been done many, many times before and I don't want to reinvent the wheel here. NQC or (...) (19 years ago, 31-Dec-06, to lugnet.robotics)
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| | Connect BT devices to the NXT without a passkey?
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Is it possible to connect BT devices to an NXT without using a passkey? The device I'm trying to use (a Nintendo Wii remote) doesn't use passkeys, AFAIK, since when I connect it to my PC I skip the pairing process. (19 years ago, 28-Dec-06, to lugnet.robotics.nxt, lugnet.robotics)
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| | Seymour Papert - Status
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All, In some unrelated correspondence, I received news that Dr. Papert was badly injured in Hanoi: (URL) Many of you know that Dr. Papert coined the term Mindstorms and was a key player in the early development of what became the RCX at MIT. I'm (...) (19 years ago, 27-Dec-06, to lugnet.robotics)
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| | Re: NXT compatible bluetooth adapters
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(...) Unfortunately, I've got a dongle with Widcomm 5.1.0.1100 software. I need it for devices not supoorted by Win XP SP2 so I can't really go back. I assume that it the PC connects to the brick using the simple serial port profile (SPP) - Is this (...) (19 years ago, 26-Dec-06, to lugnet.robotics)
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| | Re: Bluetooth and windows 2000
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I am using a Compaq (HP) nc8000 laptop which has a built-in BT device and it works fine with Windows 2000, so BT should be OK on W2K (with the right device). "Patrick Levy" <patrick@omiccron.com.br> wrote in message news:J7HJJI.6x3@lugnet.com... (...) (19 years ago, 24-Dec-06, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: and the sine & cosine functions for the NXT
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(...) As explained on our pages, I am using CORDIC algorithm. This assures best accuracy and converges much more rapidly than Taylor. There is one trade-off though, because there is no bit shifting operation in the toolkit, I must do division (...) (19 years ago, 23-Dec-06, to lugnet.robotics)
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| | RE: and the sine & cosine functions for the NXT
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Maybe a cheap sollution, but if I have to draw a sine or cosine I wouldn't calculated. Well, I will calculate it once and put it in a table. Then draw the sine & cosine from the calculated coordinates from the table. Really fast. And, euh, nobody (...) (19 years ago, 23-Dec-06, to lugnet.robotics)
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| | Re: and the sine & cosine functions for the NXT
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(...) I'm doing a project using trig, but I was going for computer control. I may be able to use this though. Steve (19 years ago, 22-Dec-06, to lugnet.robotics)
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| | Re: and the sine & cosine functions for the NXT
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(...) Well, I've already done that, as well as a nifty display meter, and some other stuff that depends on trig functions... but I did it all in NXT-G, without the toolbox: (URL) looking forward to trying your custom stuff, however, as my NXT-G trig (...) (19 years ago, 22-Dec-06, to lugnet.robotics)
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| | and the sine & cosine functions for the NXT
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now we have a complete integer trig-function package. Challenge : who is going to draw the first sine and cosine waves on the NXT display? Please report any bugs. www.convict.lu/Jeune...sIntro.htm Claude (19 years ago, 22-Dec-06, to lugnet.robotics)
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| | arctangent block for NXT
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Hi interested, LV toolkit is amazing ! It allows writing cool blocks. Now we have the arctangent function... for integer numbers !!! f(x)=atan(x) You enter x as milli_x. Example: 1000 milli = 1 !!! The result of the function is deci-degrees, a (...) (19 years ago, 21-Dec-06, to lugnet.robotics)
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| | Re: Mindstorms USB connection and memory
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|
In article <C351BAFF646DAC4F8F7...98F@YS-EX- CLUSTER.ysi.int>, Fred Mullins <lego-robotics@crynwr.com> writes (...) It is not safe to do this. Perhaps there is a power-down PC connected, that will be unable to deal with 5V being applied to the (...) (19 years ago, 21-Dec-06, to lugnet.robotics)
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| | RE: Mindstorms USB connection and memory
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|
There is a lot of "not quite standard" to existing USB capable products. Some things like digital cameras and thumb-drives get along fine with current operating systems, but most of them have their own drivers available to implement extra features. (...) (19 years ago, 20-Dec-06, to lugnet.robotics)
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| | Re: Super Rex Robot
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Updated Super Rex Information is now posted at: (URL) Bryan (19 years ago, 20-Dec-06, to lugnet.robotics, FTX)
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| | Re: Mindstorms USB connection and memory
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(...) That being said, I did once load my brick up with custom firmware that made it look like a USB key - with just under 256K (yes K) of storage - not very useful, and probably the most expensive USB key ever made! Ralph (19 years ago, 20-Dec-06, to lugnet.robotics)
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| | Re: New mini-motor?
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(...) Yes, it's real. Do a search on Ebay and you will see it being sold there. Although I dont have one, I have talked with the seller about it and he seems quite legit to me.. and interested in building them for use with Mindstorms NXT, RCX etc. (...) (19 years ago, 20-Dec-06, to lugnet.robotics)
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| | Not eXactly C beta release news
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Today I am releasing a new beta of NBC and its highly popular high-level sister Not eXactly C (NXC). It is available via the NBC website ((URL) sure to also download the latest BricxCC test release for updated NXT support for both NBC and NXC ((URL) (...) (19 years ago, 20-Dec-06, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: Mindstorms USB connection and memory
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(...) The European leading journal for electronics "Elektor" has presented a memory stick that can either be connected to a PC via USB or to a microcontroller via RS232: very interesting and inspiring: GE: (4 URLs) (19 years ago, 20-Dec-06, to lugnet.robotics)
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| | Re: Mindstorms USB connection and memory
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(...) Well... technically it could probably be done, using a microcontroller with integrated USB host, and some interface with mass storage added to it. But that would be a HUGE electronics/software project! Philo (19 years ago, 20-Dec-06, to lugnet.robotics)
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| | Re: Mindstorms USB connection and memory
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(...) Steve, Thanks! I was hoping it might work like the memory card in my digital camera. By the way, when your working on the next NXT, a memory card slot would be COOL! I can dream can't I? Sincerely, Todd (19 years ago, 20-Dec-06, to lugnet.robotics)
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| | Re: Mindstorms USB connection and memory
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Thanks! Oh well, I will go back to dreaming. Todd (...) (19 years ago, 20-Dec-06, to lugnet.robotics)
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| | Re: Mindstorms USB connection and memory
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In article <JAJz0z.6FA@lugnet.com>, Todd Thuma <thumat@gactr.uga.edu> writes (...) Hmm. A USB connection between a host and a slave is not bidirectional. The host end supplies power and control logic which create the signals to manage the data (...) (19 years ago, 20-Dec-06, to lugnet.robotics)
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| | Re: Mindstorms USB connection and memory
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(...) Yes, you're crazy. Actually, it's been suggested many times. However, it doesn't quite work that way. With USB, there's a master device, and a slave device. The thumb drive is a slave device. The NXT is a slave device. You can't connect a (...) (19 years ago, 20-Dec-06, to lugnet.robotics)
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| | Mindstorms USB connection and memory
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Mindstorms NXT experts, Okay, so I am working with my NXT and it occurs to me that the brick has a USB connection. USB connections are bidirectional meaning that information can go both ways. Skip ahead to me wanting to embed a USB memory key into a (...) (19 years ago, 20-Dec-06, to lugnet.robotics)
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| | Re: New mini-motor?
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"Ken Koleda" <kkoleda@gmspamfreeail.com> wrote in message news:JAJ435.DJF@lugnet.com... (...) custom-built. As far as the brickshelf folder itself is concerned, I did identify what appears to be an alternate model from set 8094 Technic Control (...) (19 years ago, 19-Dec-06, to lugnet.robotics)
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| | Re: Matlab & Lego
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(...) [Errors removed] Ilan, I really can't get a handle on your problem looking at the errors you provided. The only advice I can give is to check out the following things. - Verify you have the right tools and installed correctly. I would also (...) (19 years ago, 19-Dec-06, to lugnet.robotics)
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| | Re: New mini-motor?
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(...) So that's a custom motor. Better than a hoax, undoubtly :-) Regards, Gabriele -- gb(at)biffuz.it (19 years ago, 19-Dec-06, to lugnet.robotics)
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| | Re: New mini-motor?
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(...) It appears to be real, but not made by Lego: (URL) to be Lego compatible. ttfn, Tony (19 years ago, 19-Dec-06, to lugnet.robotics)
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| | Re: New mini-motor?
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(...) actually, not a hoax; if this is any way to judge it. (URL) is a quote from the sale: This motor is not made by Lego but it works as good as any Lego motor in fact Lego does not build motors, other companies do and Lego put them inside their (...) (19 years ago, 19-Dec-06, to lugnet.robotics)
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| | Re: New mini-motor?
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(...) The worst hoax I ever seen :) Regards, Gabriele -- gb(at)biffuz.it (19 years ago, 19-Dec-06, to lugnet.robotics)
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| | New mini-motor?
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Is this just someone's wish? Is it a hoax? (URL) (19 years ago, 19-Dec-06, to lugnet.robotics)
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| | Cybermaster Mission
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I've just received and installed the Cybermaster Mission CD (8450 - some great ideas to expand on the original Cybermaster set!) but I can't hear any sound. Speakers are connected and sound works in other applications (like RIS2 and the original (...) (19 years ago, 19-Dec-06, to lugnet.robotics)
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| | Super Rex Robot
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Everyone has heard of Alpha Rex...Well, here is Super Rex. (URL) Super Rex uses 3 NXTs and 9 motors - all contained within the body of the robot to walk (forward, backward, left turn, right turn), move its arms and grab with its hands. Super Rex (...) (19 years ago, 19-Dec-06, to lugnet.robotics, FTX) !
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| | Re: Calculating the square-root on NXT (LV toolkit)
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(...) This was one of my stumbling blocks, also. The LV Toolkit is no problem. Making transparent icons, is tough. :) I'm not sure what software I'm using right now, but it works... Steve (19 years ago, 18-Dec-06, to lugnet.robotics)
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| | Re: Matlab & Lego
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Hi and thanks for the help. i work about the conection of ec robot some time 2months and i gate some ereor here the ereor i gate somting in gcc compilotion of curse its ocer only when i try to compilefrom matalb Regard ilan (...) (19 years ago, 18-Dec-06, to lugnet.robotics)
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| | Re: Matlab & Lego
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check this out as this might help.. (...) (19 years ago, 18-Dec-06, to lugnet.robotics)
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| | Re: Matlab & Lego
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(...) Ilan, There has been some work in connecting the RCX with Simulink using the embedded coder. Check out (URL) documentation> on the MathWorks website. Also I recall hearing various people connect MATLAB directly to the RCX using standard serial (...) (19 years ago, 18-Dec-06, to lugnet.robotics, FTX)
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| | Matlab & Lego
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can any one was successes to operate together matlab (ecrobot-toolbox) with legos Thanks Ilan (19 years ago, 18-Dec-06, to lugnet.robotics)
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| | Re: Calculating the square-root on NXT (LV toolkit)
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(...) Hi Philo, Done ! Return to the square-root page, download the zip-file and unzip. You will need the Dynamic Block Update from (URL) install the Square-root Block. Use Tools/Block Import and Export Wizard in the LEGO software and follow the (...) (19 years ago, 17-Dec-06, to lugnet.robotics)
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| | Re: Calculating the square-root on NXT (LV toolkit)
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(...) Hi Claude, Remains to create a NXT-G SQRT block ;o) Philo (19 years ago, 17-Dec-06, to lugnet.robotics)
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| | Re: Calculating the square-root on NXT (LV toolkit)
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(...) Where? --> www.convict.lu/Jeune...sIntro.htm as usual. (19 years ago, 17-Dec-06, to lugnet.robotics)
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| | Calculating the square-root on NXT (LV toolkit)
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Hi interested: See the screenshot of a LabVIEW (NXT toolkit) program to calculate the square-root of a positive integer number. (19 years ago, 17-Dec-06, to lugnet.robotics)
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| | Ultimate Robolab news (concerns RCX only)
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|
ULTMATE ROBOLAB now runs under ROBOLAB 2.9 with the only restriction that standard ROBOLAB container modifiers (red, blue and yellow container modifiers with brown wires) cannot be used. To access those containers nevertheless, use I16 global (...) (19 years ago, 17-Dec-06, to lugnet.robotics)
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| | Re: How to control NXT motor's rotation by using LabView NXT Direct Commands?
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(...) Did you say you're using the bluetooth commands from Labview? I thought it had different motor blocks. I'll have to look again. Steve (19 years ago, 15-Dec-06, to lugnet.robotics)
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| | Connection Problems
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Hi. I've recently bought a notebook with integrated bluetooth, and of course connecting to the NXT was the first thing I did with it, and it worked like a charm. After that I used it to upload some videos to my phone, but before that I had to go (...) (19 years ago, 15-Dec-06, to lugnet.robotics)
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| | Re: How to control NXT motor's rotation by using LabView NXT Direct Commands?
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The "motor unlimited" is designed to set the motor to run an unlimited distance. It's just a "turn motor on" type block. I think you want the "Motor Degrees" block, or something like that, don't you? (sorry, I don't have access to LV right now) (...) (19 years ago, 15-Dec-06, to lugnet.robotics)
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| | Re: How to control NXT motor's rotation by using LabView NXT Direct Commands?
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(...) The "motor unlimited" is designed to set the motor to run an unlimited distance. It's just a "turn motor on" type block. I think you want the "Motor Degrees" block, or something like that, don't you? (sorry, I don't have access to LV right (...) (19 years ago, 15-Dec-06, to lugnet.robotics)
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| | How to control NXT motor's rotation by using LabView NXT Direct Commands?
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hello,guys I want to use labview NXT Direct Commands to control my NXT . I connected PC and NXT through USB successfully, and also got the response form Sound Sensor. The sound level is used to specify the rotational distance of NXT motor in (...) (19 years ago, 15-Dec-06, to lugnet.robotics)
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| | Re: Almost Holonomic Drive Built With The NXT
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(...) Ah, now that is sweet. I hate that I missed that. It is very similar to the smaller RCX rama version below. (...) Hehe, I guess that qualifies it as a walker. Rich (19 years ago, 15-Dec-06, to lugnet.robotics)
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| | Re: Almost Holonomic Drive Built With The NXT
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(...) Yes, Steve Hasseplug: (URL) (...) You may use RCX motors with conversion cables. But rotation sensors help to coordinates motors to drive precisely in any direction. I love your toe-like "wheels" ;o) Philo (19 years ago, 15-Dec-06, to lugnet.robotics)
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| | Re: Almost Holonomic Drive Built With The NXT
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(...) Basically, it's a fancy word meaning that the robot is movable in every possible direction and can spin in every direction. A Killough platform is holonomic in a two dimensional world - it can move forwards, backwards, left and right - and (...) (19 years ago, 15-Dec-06, to lugnet.robotics)
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| | Re: Almost Holonomic Drive Built With The NXT
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"Rich Thompson" <rich@robotthoughts.com> wrote in message news:JAAttJ.I8z@lugnet.com... (...) Can you define "holonomic" as that word relates to this project of yours? I looked it up on dictionary.reference.com and it didn't find a dictionary entry (...) (19 years ago, 15-Dec-06, to lugnet.robotics)
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| | Almost Holonomic Drive Built With The NXT
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I have been working on a few different designs for a Lego Holonomic Drive or Killough Platform. I almost have the components right with the robot that I have built here: (URL) anyone else built this type of platform using the NXT set? I found this (...) (19 years ago, 15-Dec-06, to lugnet.robotics)
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| | Re: Locked motor
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I can't believe I didn't find the description on your site. It was the first place I looked!! Since no easy repair appears to be possible I've contacted the seller who has graciously accepted to take the motor back and give me a refund. Thanks to (...) (19 years ago, 12-Dec-06, to lugnet.robotics)
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| | Re: Locked motor
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(...) Hi all, Unfortunately, there are very little chance that you may repair your 71427. Most of the motors I have seen with locked shaft have their permanent magnet (made from sintered magnetic powder) partially turned back into powder. That's (...) (19 years ago, 12-Dec-06, to lugnet.robotics)
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| | Re: Locked motor
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(...) Concerning the motors... a while back I discovered that I had a number of the 71427 style motors that had been removed from ZNAP sets and never used (nor tested). Someone expressed an interest in buying them, so I got out the train power (...) (19 years ago, 12-Dec-06, to lugnet.robotics)
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| | Re: Locked motor
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(...) After doing some Googling... (URL) the internals of the 43362 motor and some of the 71427. Cheers, Merlin. (19 years ago, 12-Dec-06, to lugnet.robotics)
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| | Re: Locked motor
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(...) I have not taken my locked motor apart (see below) but if it is a gear that is stripped then, as a last resort, these can be replaced with a custom made one. If you are lucky enough to know someone who is a machinist, or in the local Model (...) (19 years ago, 12-Dec-06, to lugnet.robotics)
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| | Lego RCX &matlab
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|
Can any on successes with operating brickos & matlab ilan -----Original Message----- From: linmix [mailto:linmix@gmail.com] Sent: Tuesday, December 12, 2006 12:32 AM To: lego-robotics@crynwr.com Subject: Locked motor I've just received a 2nd hand (...) (19 years ago, 12-Dec-06, to lugnet.robotics)
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| | Re: Locked motor
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|
"linmix" <lego-robotics@crynwr.com> wrote in message news:457DDC45.306060...ail.com... (...) The 9v motor you mention may have come from an older set, I've had one motor which failed, I got it from the 8479 Barcode Truck set myself, when I opened (...) (19 years ago, 11-Dec-06, to lugnet.robotics)
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| | Locked motor
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I've just received a 2nd hand lego motor (peeron #71427), and to my surprise and (... well let's leave it at that) it's jammed. I remember seeing a website that showed the internals and possibly a way to solve this (except for complaining to the (...) (19 years ago, 11-Dec-06, to lugnet.robotics)
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| | Great FLL Video
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I saw this video of New Hampshire's state champion FLL team, the Flying Geeks. They flawlessly accomplish all of the missions -- the robot even makes a pit stop back at the base to pick up a new tool without the kids snapping it to the robot. Check (...) (19 years ago, 10-Dec-06, to lugnet.robotics)
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| | Re: monkey rail
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I'm not sure I understand what you mean by 'use locomotion' nor am I suer how a race would work, but your ideas are appreciated. I hadn't thought about not using electricity at all. The only train stuff I have is a couple of blue rails... another (...) (19 years ago, 9-Dec-06, to lugnet.robotics)
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| | Re: NXT trike
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Hey John, That's a really nice bot. I'd like to write an NBC program to make it autonomous using the Ultrasonic sensor. Have you thought about posting building instructions or at least pictures showing how you built it? Dave (19 years ago, 9-Dec-06, to lugnet.robotics)
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| | Re: monkey rail
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I see your point. Trouble is I don't have a 2nd RCX nor any real rotation sensors. Using the speed computers doesn't allow me to know if I'm rotating forwards or backwards. Still the device is impressive enough to give it a try. I'll just go with (...) (19 years ago, 9-Dec-06, to lugnet.robotics)
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| | Re: monkey rail
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(...) Hi, Think of it like a robot arm. You can't get the precise control without the onboard sensors. It operates almost like an extension of your fingers. Also you wouldn't be able to program autonomous routines. It also enables self centering on (...) (19 years ago, 9-Dec-06, to lugnet.robotics)
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| | Re: monkey rail
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Hi, It occurs to me that if you use a pair of rotation sensors to manually control the structure the sensors that are embedded into the structure aren't really necessary ... or are they? What if you simply included a couple of clutches to protect (...) (19 years ago, 8-Dec-06, to lugnet.robotics)
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| | Re: monkey rail
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(...) Hello, It works like an interactive remote control. That way you can play with it and develop your skill. Vary few people have been able to walk the marble uphill on the first try. First RCX is for the base it has 2 motors and 3 rotation (...) (19 years ago, 8-Dec-06, to lugnet.robotics)
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| | Re: monkey rail
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Thanks for the offer. I hadn't thought about the programming yet. STil need to watch your videos to see how yours works. At the moment I'm trying to learn NQC. I thought the whole setup might be controlled with a single RCX (as appears to be the (...) (19 years ago, 8-Dec-06, to lugnet.robotics)
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| | Re: monkey rail
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(...) Linmix, Thanks for the compliment! Let me know if you need any help along the way including deciphering the BrickOS code. I used separate RCX's one for the base one for the rail. Unfortunately I never figured out LNP. I'm happy with the code, (...) (19 years ago, 8-Dec-06, to lugnet.robotics)
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| | Re: monkey rail was marble rail
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Awesome! I'm adding it to my Christmas list of things to build... linmix (...) (19 years ago, 8-Dec-06, to lugnet.robotics)
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| | Re: monkey rail was marble rail
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|
Hello, New render old moc. (URL) (19 years ago, 8-Dec-06, to lugnet.robotics, lugnet.cad.ray, FTX) !
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| |
| | Re: control lab up for grabs 9751 pc serial interface b
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(...) Auction announcements are not permitted in the .robotics group, so please confine them to .market.auction in future, thanks. ROSCO (19 years ago, 8-Dec-06, to lugnet.market.auction, lugnet.robotics)
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| | Re: control lab up for grabs 9751 pc serial interface b
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(...) This item didn't sell so I reduced the price by $30 dollars now $169.95 new link: (URL) (19 years ago, 7-Dec-06, to lugnet.market.auction, lugnet.robotics)
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| | LabVIEW NXT Toolkit
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|
WOW !!! WOOOOWWW !!! This IS the best thing I've ever worked with !! Congrates to the LabVIEW NXT team... especially Paul !!! I never would have expected such a thing. Some tips for teachers or students not disposing of any LabVIEW version. You may (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: NQC programming guide
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|
(...) I googled a bit by myself, but it isn't always easy o distinguish which tutorial might be good. I've seen and bookmarked the cplusplus.com website and will have a closer look later. (...) I'll definitely take you up on that! Thanks in advance. (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: NQC programming guide
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(...) Sorry for the self-reply, but I would be remiss if I didn't mention the all-time classic C reference, the book that literally defined the language and that I used so many years ago... The C Programming Language by Brian Kernighan and Dennis (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: NQC programming guide
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(...) References for "classic" C programming are getting rather scarce, but the top hit on google for "c++ tutorial", www.cplusplus.com looks like a good place to start. It begins with the basics, and only gets into object-oriented programming in (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: NXT Synchro Drive
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(...) Good links! I love those original synchro drive sites. They inspired me originally and looking at them again reminds me of a few ideas I have let slide from my brain. At the risk of this looking like link pimpage, I offered one improvement on (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: NQC programming guide
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|
Interesting! I never knew all those languages were from the same 'family'. Being a 'natural' language teacher I can see how knowing one helps to learn another related one, and I also appreciate the need for practice, practice and more practice. So (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: NXT Synchro Drive
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(...) Yes, I think the new capabilities of the NXT are going to give us all a new perspective on the challenges we've taken on in the past. (...) Cool! There are other benefits to synchro drive as well, I suppose, such as the ability to change (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: NXT Synchro Drive
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(...) You are touching on the exact reason I am playing with the synchro drive platform. Previously, to maintain "sync" between the rotation of different wheels I had to use locked gearing or a chain. you can see examples here: (URL) (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: Image processing with RCX
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"Chris Phillips" <drvegetable@comcast.net> wrote in message news:J9w4L2.GBu@lugnet.com... (...) I wonder how much more viable this camera would be if TLG looked into the possibility of outfitting it with something similar to BlueTooth? While the (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | RE: Copy the Tyco "terrain Twister" screw drive?
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I remember seeing something like this made of lego a long time ago... I believe it was made with the flex tubes. Also, there's a GBC that uses an Arquimedian screw to lift the balls. I'm afraid I have no links to any of this things but maybe I've (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: Image processing with RCX
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(...) No...I don't think you do. (...) The RCX has nowhere near enough memory to deal with images from cameras. The Lego camera connects to your PC through a cable - so it's not much use for mobile robots. The PC could do image processing and send (...) (19 years ago, 7-Nov-06, to lugnet.robotics)
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| | Re: NQC programming guide
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(...) This is probably the best advice I have *ever* seen given to someone who is just starting out trying to learn how to program. Spotlighted!! (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: NQC programming guide
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(...) Yep - that's definitely the case. Once you have learned one C-like language (and I'd describe JAVA, NQC, C++, Python, Pascal, JavaScript, PHP as 'sufficiently C-like') - it's quite easy to learn another. I needed to learn PHP for a project I (...) (19 years ago, 7-Nov-06, to lugnet.robotics)
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| | Re: NXT Synchro Drive
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(...) This looks pretty cool, and I can well respect any attempt to design a cool device out of LEGO, but I wonder how necessary something like this is with the NXT? It seems to me that the new servo motors with their integrated rotation sensors are (...) (19 years ago, 7-Dec-06, to lugnet.robotics, FTX)
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| | Re: Image processing with RCX
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(...) The LEGO camera is actually a Logitech USB camera, and cannot be interfaced directly with the RCX. It needs to be connected to a PC (or some other USB Host device) in order to operate. This restriction means that you probably need a PC (...) (19 years ago, 7-Dec-06, to lugnet.robotics, FTX)
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| | NXT Synchro Drive
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I have been playing with the turntable from the NXT kit to try and build a synchro drive train. It got a bit complicated but it works. I posted a video at my blog: (URL) mindstorms-nxt-synchro-drive/ or just: (URL) Fun! Rich (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Image processing with RCX
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Hello, I wanna use a camera to understand path while robot is moving. But i don't know how to do this? I think there is a camera in lego. But is RCX enough to process these datas or i need to connect camera to computer? And are there anyone try this (...) (19 years ago, 7-Dec-06, to lugnet.robotics)
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| | Re: Copy the Tyco "terrain Twister" screw drive?
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(...) [...] (...) Well, there is this piece: (URL) this set: (URL) even if you have an old Rock Raiders set sitting around (and why would you?), you'd be wearing off all that nice chrome if you used it. Not to mention that, if I recall correctly, it (...) (19 years ago, 6-Dec-06, to lugnet.org.ca.rtltoronto, lugnet.robotics)
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| | Re: Copy the Tyco "terrain Twister" screw drive?
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I think the flex tube is a good idea. I would use the 4x4 round brick with holes (peeron part #6222) spaced on an axle to make build the supporting framework. Attach some Angle connector #1 (peeron part 32013) to the holes on the circumference of (...) (19 years ago, 6-Dec-06, to lugnet.org.ca.rtltoronto, lugnet.robotics)
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| | Re: Copy the Tyco "terrain Twister" screw drive?
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(...) I remember this toy! Wow, Tyco must be where old molds never die. (...) I don't know of any pieces which would fit the shape, but then of course, I'm really not as up on my piece knowledge anymore. There doesn't seem to be a "worm segment" (...) (19 years ago, 6-Dec-06, to lugnet.org.ca.rtltoronto, lugnet.robotics)
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| | Copy the Tyco "terrain Twister" screw drive?
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I saw the Tyco "Terrain Twister" (URL) on TV and was intrigued by the drive mechanism. It looks like it uses two counter-rotating screws/augers to move it forward on bad surfaces like sand or snow. I found a couple other references on the web: The (...) (19 years ago, 6-Dec-06, to lugnet.org.ca.rtltoronto, lugnet.robotics)
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| | Re: NQC programming guide
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Thanks for the link. As for which programming language to learn, I'm sure C (or C related) is a perfect choice. For one, as you say NQC is C based. Secondly, learning C should give me a better insight in some of the things that happen in my Linux (...) (19 years ago, 6-Dec-06, to lugnet.robotics)
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| | Re: NQC programming guide
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(...) Because there is an additional relationship established between the array elements, namely that of succession. Five variable names would not have such a property. Now go and read a book on computer programming, please. ++L (19 years ago, 6-Dec-06, to lugnet.robotics)
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| | Re: NQC programming guide
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(...) If you want to perform the same operation (or sum) on multiple variables, you can use a loop. As long as you use the same variable that controls the loop to control the array, then each successive iteration through the loop will perform the (...) (19 years ago, 5-Dec-06, to lugnet.robotics)
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| | Re: NQC programming guide
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(...) You'll know when you need it, probably. (...) It's a style thing. (...) There are a number of 'Beginner's Guide to C' style books, buy one. :-) (19 years ago, 5-Dec-06, to lugnet.robotics)
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