 | | 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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| | Re: Motor Speed Control
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(...) I've been using a power/brake method (instead of power/float) for quite some time in BrickOS. That was one of the first big steps in getting my Legway to work. ( (URL) ) It allows you to program a robot to make smooth turns (slow, instead of (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Re: Motor Speed Control
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(...) I'm doing somthing similair at the moment. My robot runs along a track and needs to be controlled so it doesn't go too fast. I've successfully written some code which limits the top speed, you may be able to modify it or just incorparate ideas (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Re: Motor Speed Control
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Hello Iain, (...) You should definitely try Dick Swan's 10x firmware ((URL) Among other goodies (interpretation speed for example ;o), it features more power levels (128 instead of 8), and a flag to modify behavior of PWM motor control. Standard (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | Motor Speed Control
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Hi, I'm trying to do a basic test setup to code a compact speed control module for the 9V gearmotor. I've mounted an encoder (rotation sensor) directly to the gearmotor shaft. In my code, I'd like to set a variable (speedDesired) and have the motor (...) (20 years ago, 30-Nov-04, to lugnet.robotics.rcx.nqc)
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| | rcxtty for usb
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Hi! I'm trying to run LegOS on SuSE 9.0. I built a 2.6.9 kernel with the USB tower module. After I load the module and plug in the USB tower, the little light in the tower goes on, so I know things must be working. However, I still don't know what (...) (20 years ago, 25-Nov-04, to lugnet.robotics.rcx.legos)
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