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(...) A much simpler "contraption" that you can build is discussed in (URL) this LUGNET message>. The basic idea is that you place a reed switch in the railbed and it will sense the magnetic couplers between the cars of passing trains. I have been (...) (22 years ago, 1-Sep-03, to lugnet.robotics, FTX)
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| | RemoteCX 0.0.0.5
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(URL) beginning of my all-in-one program for controlling the RCX..should eventually have a robot server, webcam image server, the works - everything to fit my needs and hopefully everyone else's too...I'm open to feature requests (just check the (...) (22 years ago, 1-Sep-03, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Weird RCX electrical ideas
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<snip> (...) Well Jordan I know a little about DC motor theory. In essence a DC Motor and a DC Generator are the same thing. The amount of ripple (i.e. the frequency of the pulses although frequency is a bad term to use) is dependent on 2 things: (...) (22 years ago, 1-Sep-03, to lugnet.robotics)
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| | Re: Weird RCX electrical ideas
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(...) Voltage shouldn't be much of a concern, unless the RCX has a transformer to allow it to output higher voltage than the internal batteries can provide. Besides, wiring up a bunch of 9v lights will increase the total voltage needed to make them (...) (22 years ago, 1-Sep-03, to lugnet.robotics, FTX)
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| | Weird RCX electrical ideas
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I'd like to share two thoughts with you all. They involve the RCX and doing things with it that I'm sure the designers never intended (or thought possible). Oh, if you're reading this in the .trains newsgroup, you can skip over the first thought (...) (22 years ago, 1-Sep-03, to lugnet.robotics, lugnet.trains, FTX)
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| | Re: What are good LEGO robotics challenges?
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(...) would of course have a lot more pictures to demonstrate the challenge. But I would like this list to be something people could consult when they need ideas for challenges. Many of them can be combined into one, including ones that have never (...) (22 years ago, 1-Sep-03, to lugnet.robotics, FTX)
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| | Re: What are good LEGO robotics challenges?
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(...) Thanks for mentioning my web site David, :) As far as the actual challenges go, if you haven't already looked at our site, then you can add stair climbing to the list. I am wondering if your intent is to have a list of challenges already (...) (22 years ago, 31-Aug-03, to lugnet.robotics)
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| | Re: What are good LEGO robotics challenges?
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(...) At least half the problem is going to be to decide who's won. int main () { printf ( "Woahh! Suddenly, I'm thinking!\n" ) ; sleep ( 1 ) ; printf ( "This is amazing - I know that I exist!\n" ) ; sleep ( 1 ) ; printf ( "'I think, therefore I (...) (22 years ago, 31-Aug-03, to lugnet.robotics)
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| | Re: What are good LEGO robotics challenges?
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(...) It's something I once saw on Scientific American Frontiers, where each robot would start out on one end of a balance beam, and the object is to get your side lower than the opponent's side. Some robots did this by dropping what amounted to (...) (22 years ago, 31-Aug-03, to lugnet.robotics, FTX)
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| | Re: Maths functions
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Make my day. "nanobapt" <nanobapt@wanadoo.fr> wrote in message news:3F50F04C.204090...adoo.fr... (...) have (...) (22 years ago, 31-Aug-03, to lugnet.robotics.rcx.legos)
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| | Re: What are good LEGO robotics challenges?
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(...) Thanks for the reply. Would you please explain the balance beam tug-of-war in more detail? I just can't picture it. Also, "sentience" is pretty vague. Could you expand on that, too? Thanks a lot! (22 years ago, 31-Aug-03, to lugnet.robotics, FTX)
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| | Re: What are good LEGO robotics challenges?
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(...) A good place to look would be several of the Lego robotic club's web pages. SMART: (2 URLs) are other groups in the US as well. (URL) is one example. I'm sure there are several others. If that's not enough for you, ITLug used to have a list (...) (22 years ago, 31-Aug-03, to lugnet.robotics)
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| | Re: What are good LEGO robotics challenges?
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(...) I don't know of any lists, but here are a few more to add to yours: tug-of-war (different from sumo in that they'd have to grip a rope) (for those who are willing to risk damaging the RCX) balance-beam tug-of-war skeet-shooting (probably have (...) (22 years ago, 31-Aug-03, to lugnet.robotics, FTX)
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| | What are good LEGO robotics challenges?
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I'd like to know all the different LEGO robotics challenges you've seen or heard about. If anyone knows of a comprehensive list that already exists, please give me a link to it. Otherwise, I'm going to make my own list, which I would have on a (...) (22 years ago, 31-Aug-03, to lugnet.robotics, FTX)
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| | Re: RCX 2.0 circuit board changes
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Phillippe, Excellent, thanks a lot. That's exactly what I needed to know and the pictures are crystal-clear. :-) So it only LOOKS really different... Thanks again, ~Mike (...) (22 years ago, 30-Aug-03, to lugnet.robotics)
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| | Re: RCX 2.0 circuit board changes
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(...) Hello Mike, Here is a photograph (actually a scan) of all three versions (1.0, 1.5 and 2.0) of RCX: (URL) had a look at a few RCX 2.0 printed circuit boards, and at first sight they are identical. 1.0 contained the rectifier and regulator for (...) (22 years ago, 30-Aug-03, to lugnet.robotics)
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| | Re: Maths functions
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(...) That's nor really difficult ... nanobapt (22 years ago, 30-Aug-03, to lugnet.robotics.rcx.legos)
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| | RCX 2.0 circuit board changes
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After reviewing some pictures of the RCX 2.0's circuit board today, I noticed that they are quite different. Can anybody tell me the reason why? What changed and how does it affect the RCX? I'm looking for that infamous diode that so often blows (...) (22 years ago, 30-Aug-03, to lugnet.robotics)
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| | Re: Maths functions
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Natural log (ln), and square root. Also useful would be x^y where x and y have fractional parts. I see you have done it with just x as a float and y as an int. This would incorporate the square root by doing x^1/2 "nanobapt" <nanobapt@wanadoo.fr> (...) (22 years ago, 30-Aug-03, to lugnet.robotics.rcx.legos)
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| | Re: Maths functions
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(...) What do you need more than I wrote ? nanobapt (22 years ago, 30-Aug-03, to lugnet.robotics.rcx.legos)
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