 | | Can now use gcc 2.95.2 for legOS
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Hi all. Well, I finally got around to checking out the problem with compiling legos with gcc 2.95.2. And the good news is, it's not a bug with gcc!! The problem is the in-line assembly in memcpy.c (also in memset.c). If you apply the patch at (URL) (...) (26 years ago, 18-Jul-00, to lugnet.robotics.rcx)
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| | [ANNOUNCE] LegoVision release 0.0.3 (alpha)
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LegoVision provides a framework for adding vision to LEGO Mindstorms. More information can be found on the project homepage at (URL) the approach is quite narrow at the moment due to hardware restrictions - I only have a Video For Windows compatible (...) (26 years ago, 11-Jul-00, to lugnet.robotics.rcx)
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| | Re: Expanding the available input/output ports of the RCX
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in article NEBBIHKHBKAFAGKCCILO...s@olf.com, Ram Meenakshisundaram at rmeenaks@olf.com wrote on 7/7/00 9:58 AM: (...) I am a Lego purist, so I don't want to modify my pieces. Of course, if Lego ever creates an official multiplexer, I'll probably get (...) (26 years ago, 10-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Expanding the available input/output ports of the RCX
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Ram Meenakshisundaram schreef: (...) You could use the sensors that came with the Cybermaster kit, they have a built-in resistor so it should be possible to hook up two of those on one input port and by using RAW values see which switch is pressed. (26 years ago, 10-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | RE: Expanding the available input/output ports of the RCX
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Sure you can try using just three input/output ports, but eventually you end up scaling back you designs. Of course, you can always buy another RCX to increase the number of ports, which will throw you back $200. Adding a multiplexor is such an easy (...) (26 years ago, 9-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Expanding the available input/output ports of the RCX
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(...) [imho] It's sometime very creative to build your own multiplexer as it is a part of the project. [/imho] The site of Michael Gasperi has a lot of informations about those input multiplexer : (URL) (26 years ago, 9-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | (canceled)
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| | Re: Expanding the available input/output ports of the RCX
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(...) How about coming up with creative solutions within the limits of the hardware? In the real world, you can't always make it bigger and better, sometimes you have to do it another way. It's a much more interesting problem to "do it with only (...) (26 years ago, 8-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Expanding the available input/output ports of the RCX
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Hi, With only 3 input and 3 output ports, the RCX becomes quite limiting after a while. There are several different solutions to this at various sites. Does anyone know which one is the best out of all of them. I basically looking for good (...) (26 years ago, 7-Jul-00, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: Interactive Robots
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(...) Quite good. Fantastic site, I have just spend a relaxing 30 minutes browsing it. Keep up the good work. Scott A (...) (26 years ago, 5-Jul-00, to lugnet.robotics.rcx)
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| | Re: VB Upload Problem
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Well, Chris verifies that he uses variable 23, 24, and 25 to log values in ROBOLAB, and that he also puts in random stuff such as which sensor it is, etc. in the beginning of the datalog. But this still leaves the problem of how to clear the (...) (26 years ago, 3-Jul-00, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: running the motors underwater
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(...) The main problem is that the motor isn't water prof. It's rusting inside and or the grease is breaking down. The motor will heat up while in use. This would cause a sealed motor to push the air past the rotating axle. Ok, now when the motor (...) (26 years ago, 29-Jun-00, to lugnet.robotics.rcx)
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| | running the motors underwater
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A few years ago some kids I was working with were trying to outfit a LEGO boat with a paddle wheel and micromotor. While they were working, one kid got the idea that he was going to put a propellor onto one of the 4200 rpm motors, add wheels, and (...) (26 years ago, 29-Jun-00, to lugnet.robotics.rcx)
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| | Interactive Robots
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I have been playing around with building more rounded robots using building techniques usually seen in lugnet.build.arch.* I have constructed two rather nice looking examples that have some rudementary interaction. If either robot detects the other (...) (26 years ago, 28-Jun-00, to lugnet.robotics.rcx)
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| | internet project, anyone?
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I'm working on an internet communication project that requires both parties to have ROBOLAB 2.01 and the Technic 8094. (i can get you robolab 2.01 if you need it) If you are interested in trying this out with me, let me know... i realize this is a (...) (26 years ago, 27-Jun-00, to lugnet.robotics.rcx.robolab, lugnet.robotics, lugnet.robotics.rcx)
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| | Re: VB Upload Problem
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You could always check how big your datalog is by uploading the first point of the datalog in VB. The third element of the first point (point 0) is the size of the datalog. Throw that in a databox and see what it gives you. I would agree that VB (...) (26 years ago, 26-Jun-00, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: VB Upload Problem
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(...) I think chris is putting some other info in the datalog. I poked at this briefly when using an early version of Robolab 2.0, but I don't recall the exact details. I think it comes from Robolab trying to use the datalog to record multiple (...) (26 years ago, 24-Jun-00, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: VB Upload Problem
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ok, so i'm getting a little closer to answering my own question, but i'm still stuck. if i write a new robolab program to take 10 points of light data and then upload it with VB, those 10 points get put into slots 10-20 in the datalog, and points (...) (26 years ago, 24-Jun-00, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: VB Upload Problem
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(...) But I wasn't logging variables... and I never have... I was logging sensor values... and the values were certainly not things like 9, 0, 1, 3, ... (what showed up for values) but were more like 16, 23, 32... (which show up 70 or so values into (...) (26 years ago, 24-Jun-00, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: VB Upload Problem
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(...) Variables are 'type' 0, but there's a disagreement between NQC and VB about which var is in the log. I haven't heard of any problems with NQC in this respect, but I can test it out a bit and see. ... (...) At the bytecode level, the datalog is (...) (26 years ago, 24-Jun-00, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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