 | | Re: BrickOS on Mac OS X (restarted ?)
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(...) It seems like MacNQC can be used to download a new firmware on the RCX: (URL) you didn't, you should give it a try. I also had problems downloading firmwares to the RCX through the USB tower with many utilities. Only NQC did it right. Please (...) (20 years ago, 23-Jul-04, to lugnet.robotics.rcx)
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| | Re: Sensor inputs of RCX
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Hi Andreas, (...) this is the pwoer supply for active sensors (light and rotation). It is interrupted briefly every 3ms to sample the value of the sensor. (...) It is done by the microcontroller, every 3ms the OCIA interrupt routine turns off the (...) (20 years ago, 21-Jul-04, to lugnet.robotics.rcx)
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| | Re: Sensor inputs of RCX
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(...) Hi Andreas, Sensor inputs can be configured two ways: 1. Passive - sensor does not need power to operate 2. Active - sensor needs power to operate Active sensor ports put out aproximately 7V most of the time, and drop the voltage (every 3ms?) (...) (20 years ago, 21-Jul-04, to lugnet.robotics.rcx)
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| | Sensor inputs of RCX
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Hi, I'm interested in the electronical function of the three sensor inputs of the RCX. I took an osilloscope and measured the voltage of the ports. So I got to know that a rectangular signal is put on the sensor ports when they are activated by (...) (20 years ago, 21-Jul-04, to lugnet.robotics.rcx)
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| | BrickOS on Mac OS X (restarted ?)
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11 months ago, there was a thread in this newsgroup dealing with the implementation of BrickOS on Mac OS X. I was just wondering whether the situation had changed since then. I've downloaded M. Zapp's port of the GCC cross-compiler and tools, have (...) (20 years ago, 21-Jul-04, to lugnet.robotics.rcx)
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| | Re: Using the RCX for animating LEGO Train displays?
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NGLTC (and other train club) members have been getting creative with their mindstorms. 1) Rail Racers! 2) Lewis Valentine has made a working train drawbridge on the NGLTC layout. It's taken him a lot of tinkering, but it works very well! 3) Street (...) (20 years ago, 19-Jul-04, to lugnet.robotics.rcx)
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| | Re: Using the RCX for animating LEGO Train displays?
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(...) What can you do with an RCX? That doesn't sound very off-topic. :) (...) One name to start with: Brian Alano. He's a member of IndyLUG, and he's done some amusement park rides, and things like that. (...) Most of these things you can ask about (...) (20 years ago, 19-Jul-04, to lugnet.robotics.rcx)
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| | Re: Using the RCX for animating LEGO Train displays?
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(...) Here is one place I've seen stuff that Dave has done: (URL) cross posted to RTLToronto, maybe one of the train guys there could help? -Rob A. (...) (20 years ago, 18-Jul-04, to lugnet.robotics.rcx, lugnet.org.ca.rtltoronto)
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| | Using the RCX for animating LEGO Train displays?
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Please pardon the interruption, as this is probably a bit off-topic, and is more a distraction than a contribution at this point. ;-) I've been looking in the various LUGNET forums, hoping to find a link to a good page of clues for using the RCX in (...) (20 years ago, 15-Jul-04, to lugnet.robotics.rcx)
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| | Re: Light Sensor question
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(...) Sam, By default programming when you configure a sensor input to be a light sensor, it gives you back readings in the 0-100 range (i.e. percentage of the maximum possible reading). To get better resolution (which I expect you might want), you (...) (20 years ago, 15-Jul-04, to lugnet.robotics.rcx)
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| | Re: Light Sensor question
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Thanks, I'm picking up my mindstorm kit today and if I run into any problems, I'll post another quesiton. (20 years ago, 15-Jul-04, to lugnet.robotics.rcx)
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| | Re: RCX datasheet
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Hallo Andreas, (...) not that I know of, but take a look at (URL) , that should answer most questions. This is about RCX 1.0, but the 2.0 is identical w.r.t. software and very similar w.r.t. hardware. If you have further questions, don't hesitate to (...) (20 years ago, 15-Jul-04, to lugnet.robotics.rcx)
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| | Re: Light Sensor question
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(...) Try a DIY CdS cell. See details here; (URL) (20 years ago, 14-Jul-04, to lugnet.robotics.rcx)
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| | Re: Light Sensor question
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Basically there's enough light coming through that it would expose film quite quickly. Also, the ambient does have light in it. If the lego sensor isn't sensitive enough, could I easily replace it with another? (20 years ago, 14-Jul-04, to lugnet.robotics.rcx)
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| | RCX datasheet
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Hello Does anyone know, if any datasheets about the RCX 2.0 are existing? Greets Andreas (20 years ago, 13-Jul-04, to lugnet.robotics.rcx)
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| | ERIKA Educational 1.3
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Hi Guys! ERIKA Educational 1.3 is finally out! Check it out at (URL) version adds: * Wireless Ring (RF Transmission) support (Yes, our RF wireless gateway prototype is finally working!!!) * Preliminary Matlab code generation support * Preliminary (...) (20 years ago, 13-Jul-04, to lugnet.robotics.rcx)
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| | Re: Light Sensor question
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(...) Sam, you need to tell us more about 'how much' light-tightness you want and if the ambient has some or no light at all. As an extreme example, in testing a photographic darkroom for light-tightness it is common to hang a few rolls of unexposed (...) (20 years ago, 9-Jul-04, to lugnet.robotics.rcx)
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| | Light Sensor question
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I'm new to mindstorms so I have a simple question. At work, we're trying to measure the light tightness of rings. Basically this involves observing how much light passes through the outside edge of a ring. Is there any way a mindstorm light sensor (...) (20 years ago, 8-Jul-04, to lugnet.robotics.rcx)
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| | Re: Communication Speed, PC -> RCX, LEJOS!
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(...) Hi Joe, Thank you for your fast reply, you are right, alle the 4 RCXs can see the tower, but I dont think thats the problem, since the problem also is present when only one RCX is turned on, or the other 3 are removed from the place. I only (...) (20 years ago, 7-Jul-04, to lugnet.robotics.rcx, FTX)
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| | Re: Communication Speed, PC -> RCX, LEJOS!
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From the picture (d1_p31) it looks as though all 4 RCXs can see the tower. I don't know anything about pcrcxcomm.jar or rcxf7port; and not much about lejos, however, if all 4 RCXs try to respond to the tower, you will have collisions. Try covering (...) (20 years ago, 7-Jul-04, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.java)
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