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 Robotics / RCX / *8995 (-20)
  Any Code Archive, Links or Send Me Zip File Of Code?
 
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)
 
  Code Archive, Links or Send Me Email Attachment/s
 
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)
 
  Re: Errors while installing brickOS 0.2.6.10
 
(...) 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)
 
  Errors while installing brickOS 0.2.6.10
 
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)
 
  Re: Motor Speed Control
 
(...) 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)
 
  RE: Motor Speed Control
 
(...) :) (...) 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)
 
  RE: Motor Speed Control
 
(...) 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)
 
  RE: Motor Speed Control
 
(...) 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)
 
  RE: Motor Speed Control
 
(...) 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)
 
  Re: Motor Speed Control
 
(...) 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)
 
  Re: Motor Speed Control
 
(...) 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)
 
  Re: Motor Speed Control
 
(...) 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)
 
  Re: Motor Speed Control
 
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)
 
  Motor Speed Control
 
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)
 
  rcxtty for usb
 
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)
 
  Light seeker
 
Hi, I was wondering if anyone has any experience programming (NQC) a stationary |light seeking head? I have one made using a rotation sensor for reference, and 2 light sensors but can't seem to get the programming down. |Thanks |John Jordan (20 years ago, 25-Nov-04, to lugnet.robotics.rcx.nqc)
 
  Robot cleaner on the new inventors
 
On the (URL) New Inventors> tonight (ABC TV Australia), there was a short segment on kids inventions, and two girls invented a floor cleaner based on an RCX. It looked like a fairly simple robot, with touch sensors each end, and some floor wipes (...) (20 years ago, 24-Nov-04, to lugnet.loc.au, lugnet.robotics.rcx, lugnet.mediawatch, FTX)
 
  Re: RCX Replacement Firmware
 
(...) BricxCC and NQC with support for Dick Swan's enhanced firmware. If you know where it is go get it. If you don't, you can email me and I'll send you the link. This version has preliminary support for 256 global variables. BricxCC has some cool (...) (20 years ago, 23-Nov-04, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
 
  Lego remote control code for PC
 
Is there a way to write programs on the PC that are controlled by the Lego remote control? Clearly the RCX can be programmed to react to signals from the remote control but I was wondering whether the same could be done for a PC. Thanks, Ralph (20 years ago, 23-Nov-04, to lugnet.robotics.rcx.legos)
 
  vision snapshots
 
Hi, I've been using the lejos vision system to track a pattern of lights in the ceiling. It splits the image into regions, selects the brightest, zooms in, repeats, and so on. It then repeates this process for every point in the pattern. It returns (...) (20 years ago, 19-Nov-04, to lugnet.robotics.rcx.java)


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