 | | Re: train control
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Hi Daniel, (...) you can do more levels by something like the Bresenham algorithm, i.e. for speed 4.5 you turn it on for 4ms and 5ms of the 10ms alternatively. Though 10 levels should normally suffice, the standard LEGO train controller has fewer (...) (20 years ago, 9-Jul-04, to lugnet.robotics.rcx.java)
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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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| | Re: train control
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(...) The simple answer is "maybe"! If you have one handy, try it. I'm not sure whether the RCX will cope with a capacitive load rather than an inductive one, so I would advise you not to put the capacitor across the RCX output without a motor in (...) (20 years ago, 8-Jul-04, to lugnet.robotics.rcx.java)
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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: train control
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Daniel: >> I want to use rcx to control a lego train, but the fact that lejos only >> have 7 levels makes it dificult to set the speed. > > Mark Bellis wrote: > > I think at the very least you need to smooth the power output of the RCX in > order to (...) (20 years ago, 8-Jul-04, to lugnet.robotics.rcx.java)
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| | Re: train control
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(...) hi Juergen I tried it with load, and it works much better! Only that the speed is not very stable in the curves. (...) If i use a cycle of 10ms, then i could only use 10 different speeds, because the Thread.sleep has a resolution of 1ms... (...) (20 years ago, 8-Jul-04, to lugnet.robotics.rcx.java)
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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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| | Communication Speed, PC -> RCX, LEJOS!
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Hi everyone, Im working on a project with controlling a large Container Crane by 4 RCXs. I have implementet some controlling and a lot of functions in the model, including a userinterface made in Java for a laptop. The crane is controlled by a (...) (20 years ago, 7-Jul-04, to lugnet.robotics.rcx.java, lugnet.lego.dacta, lugnet.robotics.edu, lugnet.robotics.rcx.legos, FTX)
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| | brickOS v1?
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Hi, I'd like to know if the v1 of brickOS with the support of the usb tower for linux (without patch) is going to come soon or not. Actually I have tried many things but without success. Thank's Nil (20 years ago, 7-Jul-04, to lugnet.robotics.rcx.legos)
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| | Re: train control
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Hi Daniel, (...) sorry to reply so late, I wanted to try it myself but didn't get around to do it yet (I'm starting an IT-Business as a consultant/systems programmer, see (URL) managed to run a train from an RCX with the standard power levels using (...) (20 years ago, 5-Jul-04, to lugnet.robotics.rcx.java)
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| | Re: NQC problem...driving me insane!
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(...) You should check to make sure your light sensor is in fact changing more than 5 counts. Start by changing the above code to 2 or 3. I don't recall with NQC, but with some languages (BrickOS) the values are backwards, so you may need to check (...) (20 years ago, 5-Jul-04, to lugnet.robotics.rcx.nqc, lugnet.org.ca.rtltoronto)
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| | Re: NQC problem...driving me insane!
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(...) Well, actually, that code works fine (running MacNQC, a fairly recent version, with 2.0 firmware). One thing to check, code-wise, is to display SENSOR_1 on the LCD, and see what the numbers are (is it set to raw mode? Is the sensor bad (I've (...) (20 years ago, 4-Jul-04, to lugnet.robotics.rcx.nqc, lugnet.org.ca.rtltoronto)
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| | NQC problem...driving me insane!
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Hey all, I know I must be doing something very simple wrong here - but I can't for the life of me figure it out. What I'm trying to do: Have a light sensor pointed at a surface. Pass that value off to a variable (the variable then contains the (...) (20 years ago, 4-Jul-04, to lugnet.robotics.rcx.nqc, lugnet.org.ca.rtltoronto)
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| | Re: train control
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(...) There is a fundamental difference between the RCX and a Lego Train controller - the controller uses smooth power from a 3-pin regulator, with the voltage varied using a chain of resistors. The RCX uses PWM power with approximately 166ms square (...) (20 years ago, 3-Jul-04, to lugnet.robotics.rcx.java)
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| | Re: phantom.dll control problem
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----- Original Message ----- From: "Ayse Gaye Soykok" <asoykok@e-kolay.net> <snip> (...) mfc (...) be (...) CreateFile(USB_TOWER, (...) I was able to make it work using precisely this call ... got the basic working VC++ version from here: (URL) I (...) (20 years ago, 29-Jun-04, to lugnet.robotics.rcx)
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| | Re: phantom.dll control problem
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(...) Hi, I'd like to say "yes this is the problem, how I' ve forgotten" but firmware is downloaded. Test program works but mine does not. I am using the appropraite commands I am sure. Can it be a problem about the aplication? Test program is VB. (...) (20 years ago, 29-Jun-04, to lugnet.robotics.rcx)
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| | Re: phantom.dll control problem
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Silly question, but - does your RCX have firmware downloaded to it? Rob "Ayse Gaye Soykok" <asoykok@e-kolay.net> wrote in message news:Hzxw7s.1123@lugnet.com... (...) I am (...) controls, in (...) the rcx (...) program(downloaded with (...) may (...) (20 years ago, 28-Jun-04, to lugnet.robotics.rcx)
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| | phantom.dll control problem
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Hi all, I am going to use phantom.dll controls(I hope)for communicating with rcx. I am using visual C++ 6.0 as the development environemnt. I am using the controls, in a win32 console application. The problem is nothing seems to be send to the rcx (...) (20 years ago, 26-Jun-04, to lugnet.robotics.rcx)
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| | train control
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hi I want to use rcx to control a lego train, but the fact that lejos only have 7 levels makes it dificult to set the speed. Jürgen Stube wrote in september2001: "Yes, the standard LEGO routines make it very hard to control speed. Basically with an (...) (20 years ago, 28-Jun-04, to lugnet.robotics.rcx.java)
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