 | | Re: A better full adder!
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(...) Not sure if there's an algorithm, per se... but here's how I do it. Conceptually, I think of the backwards switch arrangement as an XOR gate. Input (from the output valves) will only be accepted from either the top or bottom valve. In general, (...) (22 years ago, 1-Jul-03, to lugnet.technic, lugnet.robotics)
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| | Need Help Setting up Apache Web Server
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Does anyone know where I can find a tutorial to walk me through installing/setting up the Apache server on my Windows PC? Or can someone walk me through this via e-mail? I run Windows XP, and connect through a Linksys router to the internet with a (...) (22 years ago, 1-Jul-03, to lugnet.technic, lugnet.off-topic.geek, lugnet.general, lugnet.publish, lugnet.robotics)
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| | Re: A better full adder!
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(...) Geat job Mark! I started out with a 14 piston, seven switch full adder, and by piggybacking off each others ideas, you've gotten us down to 2 pistons and a handfull of switches. Absolutely amazing! Unless I come up with some revolutionary (...) (22 years ago, 1-Jul-03, to lugnet.technic, lugnet.robotics)
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| | Re: A better full adder!
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(...) No offense was taken. My appologies if I gave that impression. I just completed some load testing on the compressing piston. It easily switched 2 switches, was just barely able to switch 3 switches, and clearly couldn't do 4 switches. Since (...) (22 years ago, 1-Jul-03, to lugnet.technic, lugnet.robotics)
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| | Re: A better full adder!
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(...) I wasn't trying to imply that you hadn't actually tried it... I was only suggesting that I didn't think that pistons being driven solely by the compression of air created by the expanding of other pistons would be strong enough to compress (...) (22 years ago, 1-Jul-03, to lugnet.technic, lugnet.robotics)
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| | Re: Help with lnp
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(...) I may try this. It looks like the problem is that the files are in the wrong place. I am going to try to fix this problem, but I may use your idea. You have tried it and it works? I am not that familiar with Java, but may be able to figure out (...) (22 years ago, 1-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Modifying the BrickOS source code
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(...) If he wants to do this, he should better have a good understanding of programming in C and Operation System design. Debugging an OS is a hard job. (...) I am under the impression that you don't have any knowledge of how to handle a UNIX style (...) (22 years ago, 1-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: A better full adder!
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(...) I've alway found low level circuit design interesting. Using pneumatics and LEGO pieces to create them seems like a good challenge. I have some ideas that might turn into workable designs. (...) I've tested it, and it does work. I don't know (...) (22 years ago, 1-Jul-03, to lugnet.technic, lugnet.robotics)
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| | Re: Modifying the BrickOS source code
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(...) If you have installed and built the unmodified BrickOS then you are ready to go. At the very end of the build after you built/instaled the cross compliter and BirckOs source you executed a make command. When you did this you got a whole bunch (...) (22 years ago, 1-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Help with lnp
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And legnoppix ? What about this solution ? nanobapt (22 years ago, 1-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Modifying the BrickOS source code
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(...) The build system is not particularly complex. $ ./configure $ make You will, of course, have to either build or install prebuilt cross compiler binaries first. Info on the brickOS website, ask here if you run into problems. I'm not quite sure (...) (22 years ago, 1-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: A better full adder!
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(...) I think the idea here is that they are mutually exclusive - only one will be expanded at any one time, so when a different one is expanded, it effectively only has to retract one other - the one that was previously expanded. ROSCO (22 years ago, 1-Jul-03, to lugnet.technic, lugnet.robotics)
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| | Re: Help with lnp
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(...) Katie, I am also doing a project which envolves getting information from the RCX using the BrickOS and Cygwin. I tried the same approach with using the Linux files but, I found another way to get information. If your familiar with Java you can (...) (22 years ago, 1-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: A better full adder!
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(...) Egad! Another madman joins the fray! ;) (...) Am I misunderstanding you or are you suggesting that the pressure created by the expansion of one piston would actually be sufficient to compress *TWO* others? Unless the pistons had no loads at (...) (22 years ago, 1-Jul-03, to lugnet.technic, lugnet.robotics)
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| | Modifying the BrickOS source code
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Hey, My friend and I are tring to modify the BrickOS memmory management for a computer Science senior project. I am trying to help him out with it. We are wondering if anyone can give us some information on how we can edit the source code and then (...) (22 years ago, 1-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: A better full adder!
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(...) While working with Mark's full adder design, the XOR gate in particular, I found something which may be useful in some pneumatic constructions. In Mark's fulladder (URL) just the XOR gate (the 3 switches on the piston on the right). There are (...) (22 years ago, 1-Jul-03, to lugnet.technic, lugnet.robotics)
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| | Re: Mechanical Memory for Computing
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(...) Hi John, I'd forgotten about the 4040. I thought they went from the 4004 to the 8008 to the 8080, but my memory must be failing me. I really only became aware of microprocessors with the 8080. I invented a clocked pneumatic scheme where you (...) (22 years ago, 1-Jul-03, to lugnet.robotics)
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| | custom aluminum axle
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Hey guys, After running my roundup ride all day at the roadshow preview at Lego headquarters last weekend, it bacame apprent that an entire days worth of torquing the main technic axle is too much for the abs plastic which looked somewhat like a (...) (22 years ago, 1-Jul-03, to lugnet.technic, lugnet.robotics, lugnet.org.us.nelug, lugnet.general)
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| | Re: Mechanical Memory for Computing
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(...) I just had to join in on this one :) I greatly enjoyed playing around with Intel's early 4004 PMOS microprocessor, one of the very first I think. It was a 4 bit per entity (character?) device which was primarily aimed at processing BCD, one (...) (22 years ago, 1-Jul-03, to lugnet.robotics)
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| | Re: Touch Switch 2974
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"Philippe Hurbain" <philohome@free.fr> wrote in message news:HH8tDw.B8I@lugnet.com... (...) metallic (...) with (...) No capacitor as far as I can tell. I looked at it on the scope and the transitions were no different than if I just used a 2.2K (...) (22 years ago, 1-Jul-03, to lugnet.robotics.rcx)
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