 | | Re: Mindstorms fabrication/manufacturing line...
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(...) this shows her what obsessive really is. Amazing. (18 years ago, 5-Jan-07, to lugnet.robotics)
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| | Re: Mindstorms fabrication/manufacturing line...
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(...) That machine is ingenious. I like the way he has his RCX bricks communicating by traveling along with the assembly line. I also like the frame he made to hold the wheels while the body was pushed onto them. Brilliant. (...) This reply is (...) (18 years ago, 5-Jan-07, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.robotics.rcx, lugnet.technic)
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| | Re: Line Follower
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(...) Thanks Steve! It's perfect. I will use it in one of the NXT robots. But now, part of this project is to show some comunications between two robots, (and the other one is a RCX driven. It will also follow a line). I saw some time ago a small (...) (18 years ago, 3-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: straight line differential drive code
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(...) I built a project to do just what you want. In a tracked vehicle I have each track driven by a separate motor and each also drives one side of a 'differential' but in opposite directions. If both motors run exactly the same speed the sum is (...) (18 years ago, 2-Jan-07, to lugnet.robotics)
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| | Re: straight line differential drive code
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(...) Just one rotation sensor. The differential gives you the difference (hence the name) of the two sides. If it's zero, you're driving straight. A positive rotation means you are turning one way, and negative is the other. It's not pseudocode, (...) (18 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 (...) (18 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 (...) (18 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. (18 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 (...) (18 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 (...) (18 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... (...) (18 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 (...) (18 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 (...) (18 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 (18 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 (...) (18 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 (18 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 (...) (18 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 (...) (18 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. (...) (18 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 (18 years ago, 20-Dec-06, to lugnet.robotics, FTX)
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