 | | Re: Wire communication
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(...) Hi, yep it does. Regards Ronald (20 years ago, 15-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: Wire communication
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A few questions and another answer: I don’t have my nqc ref to hand, but does the one external output on the cybermaster support float? I also have the suspicion that a more efficient (fewer ports tied up) solution might be achieved by wiring two (...) (20 years ago, 14-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: brickOS port to FreeBSD
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(...) I think the latest official gcc-binaries for brickOS are still 2.95.x. However, I have binutils-2.15 and gcc-3.4.0 running under linux and had only minor problems. Make sure you compile gcc without the stdc++ libraries or just ignore the (...) (20 years ago, 9-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: Wire communication
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(...) I think all you really need to do is switch the motor port between "float" and "brake". That's the same as opening and closing a touch sensor. I've used that for simple signals, and it seems to work fine, but I haven't tried more complex (...) (20 years ago, 9-Dec-04, to lugnet.robotics.rcx.legos)
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| | Wire communication
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Hello, I am currently trying to implement a communication protocol between two bricks using just one of the copper wire given with the brick. The protocol is based on manchester encoding, using a well-timed alternation of up and low signals. My (...) (20 years ago, 9-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: What does RCX stand for?
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(...) Me, too. So, I did a search and found it here: (URL) Entering the buzzword "RCX" - out came "robotic command explorer", unless TLC intended it otherwise. C S Soh (20 years ago, 9-Dec-04, to lugnet.robotics.rcx, FTX)
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| | RE: What does RCX stand for?
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I think it stands for Robotics Command eXplorer. (20 years ago, 9-Dec-04, to lugnet.robotics.rcx)
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| | Re: What does RCX stand for?
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(...) good question. i've wondered about this myself from time to time. ondrew (20 years ago, 9-Dec-04, to lugnet.robotics.rcx)
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| | brickOS port to FreeBSD
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Hi, I'm looking at porting brickOS to FreeBSD. I guess the first step is to get the crosscompiler etc. going. Which version of gcc and binutils is the best to use? I searched a bit but it isn't very clear which version to use, except that lots of (...) (20 years ago, 8-Dec-04, to lugnet.robotics.rcx.legos)
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| | What does RCX stand for?
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RCX'rs, I know it is a silly question and one that has probably been asked before, but what does RCX stand for? If I could find the answer, I wouldn't have to ask. Does it stand for Robotics Command System or Robotics Command Extrodinare? What? Todd (20 years ago, 8-Dec-04, to lugnet.robotics.rcx)
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| | Any Code Archive, Links or Send Me Zip File Of Code?
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Hi I am a newbie. I have the Excellent Core Lego Mindstorms Programming Book, but is there a code archive, link, or could someone send me a zip? file with some examples? Cheers Dale (20 years ago, 7-Dec-04, to lugnet.robotics.rcx.java)
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| | Code Archive, Links or Send Me Email Attachment/s
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Hi I am a newbie. I have Extreme mindstorms, Lego Mindsorms Robots books, but was wondering if there is/will be a code archive available, or can anyone please direct me to where I can get lots of example code?, even email me some (zip file?)if they (...) (20 years ago, 7-Dec-04, to lugnet.robotics.rcx.legos)
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| | Re: Errors while installing brickOS 0.2.6.10
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(...) I highly recommend that you use my cygwin and brickOS installers. If you use them you will more than likely be up and running with brickOS in a matter of minutes. See my BricxCC page at (URL) are links to the two installers: (URL) Hansen (20 years ago, 2-Dec-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Errors while installing brickOS 0.2.6.10
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Hi, I am a newbie. I have encountered some errors while installing brickOS 0.2.6.10. (URL) anyone encounter the same problems before? 1. When I just start cygwin, it gives me an error message like this: This application program can not be executed (...) (20 years ago, 2-Dec-04, to lugnet.robotics, lugnet.robotics.cybermaster, lugnet.robotics.edu, lugnet.robotics.rcx, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.nqc)
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| | Re: Motor Speed Control
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(...) That's the case too for Swan firmware with standard parameters. (...) And yes, power consumption is much higher using on break. I measured variation of RCX current with one motor, power level 3 (50% duty cycle). Idle RCX current (35mA) is (...) (20 years ago, 1-Dec-04, to lugnet.robotics.rcx.nqc)
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| | RE: Motor Speed Control
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(...) :) (...) I'm not sure how the Swan firmware does it, but I have mine set so it cycles every 8 ms. It's on for 0 to 8 ms, then off (brake) for the rest, depending on the speed. That's fast enough to produce a very smooth result. There is no (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | RE: Motor Speed Control
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(...) Actually, it's more like standing on the brakes, letting go and then gunning the gas, stepping off the gas and standing on the brakes :-) And yes, that WILL use more gas, and more batteries. Now, if the resolutiion of timing for the brake (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | RE: Motor Speed Control
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(...) Yes, but I think the "power" portion of the cycle will draw more, because it's always trying to go from stop to full speed. Like driving a car with the brakes on. Start with the brake totally pressed, and the more you push on the gas, the less (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | RE: Motor Speed Control
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(...) The brake function (as far as I know) should not use more battery power as the short circuit is in the driver chip itself. The drivers are MOSFETs, so setting the H bridge to brake does not actually apply any battery power to the motor (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Re: Motor Speed Control
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(...) If you are not concerned with remaining pure, this interface (URL) should provide better feedback than the rotation sensor. -Rob A> (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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