Results 901 – 920 of about 2200.
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 | | Re: Extending IR communications
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| In terms of power requirements and battery life, has anyone here actually quantified how much of a difference that makes? Its a damn good idea - as long as you have white, and relatively flat ceilings. If you dont want/are not able to reposition (...) (19 years ago, 6-Aug-05, to lugnet.robotics.rcx)
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ir, long
(score: 2.147)
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usb, tower
(score: 2.142)
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usb, tower
(score: 2.142)
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usb, tower
(score: 2.142)
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usb, tower
(score: 2.141)
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| | RE: time sampling under the rcx standard OS
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| Here are some comments on how to improve your code for real-time performance. 1. Move the "SetUserDisplay" out of the loop and put it just before the loop. 2. I think the "OnFwd" macro is actually two instructions: "Fwd" and then "On". Replace this (...) (19 years ago, 17-Sep-05, to lugnet.robotics.rcx.nqc)
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range, long
(score: 2.127)
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range, long
(score: 2.110)
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| | 64bit driver for the LEGO USB Tower
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| Is it safe to say that LEGO will not be creating a 64bit driver for the USB Tower? Is there anyone here that could? What would it take? It would be really nice to have one before LEGO completely drops support for the RCX system. (16 years ago, 16-Jan-09, to lugnet.robotics.rcx)
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usb, tower
(score: 2.060)
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| | Re: IR-based proximity measurement
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| (...) i have downloaded the SerialPing.nqc program hoping to get an easy to use proximity sensor. i have modified it to work with only one light sensor. but it shows always -90 on the display. ok, sometimes -89 too. can anybody tell me, what i did (...) (18 years ago, 9-Jun-06, to lugnet.robotics.rcx.nqc)
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ir, long
(score: 2.054)
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| | Re: IR-based proximity measurement
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| (...) Well, there were a couple of typos, but only one I found that was critical. If you are using a "max-picking LIDAR" method, you do *not* want to divide by the number of samples. The variable "eyeon" in your code should end up with the brightest (...) (18 years ago, 9-Jun-06, to lugnet.robotics.rcx.nqc)
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ir, long
(score: 2.053)
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| | Re: IR-based proximity measurement
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| (...) You're welcome - it's a fun problem. At least partially because it's one of the few times I've had to worry about the speed of bytecode execution under the standard firmware (see below). (...) Given what you are transmitting and how you are (...) (18 years ago, 11-Jun-06, to lugnet.robotics.rcx.nqc)
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ir, long
(score: 2.053)
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| | Re: IR-based proximity measurement
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| Brian, thanks for your advice. it has told me what is happening physically. i build a one shot measurement program to answer your questions. here is the measurement result: Distance to wall: 26 cm (at night) 7740 7696 7666 7641 7639 7613 7613 7593 (...) (18 years ago, 11-Jun-06, to lugnet.robotics.rcx.nqc)
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ir, long
(score: 2.052)
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| | Re: Preserving old-school Mindstorms resources
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| Patch 10: This works for me under Cygwin with a USB tower, but some of the files such as rcx_comm.c have a bit of platform-specific code. Patch 11: I've noticed that the linker command file is a little different in Bibo than it was in BrickOS. If (...) (15 years ago, 21-Apr-09, to lugnet.robotics.rcx.legos)
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usb, tower
(score: 2.019)
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| | Re: Preserving old-school Mindstorms resources
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| (...) specific patches from the Bibo set. However the symptoms are identical under BrickOS so I assume they would be linked to the same patches there. Patch 10: Under Ubuntu with the usb tower, this causes firmdl3 to exit with error "read: resource (...) (15 years ago, 20-Apr-09, to lugnet.robotics.rcx.legos)
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usb, tower
(score: 2.017)
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usb, tower
(score: 2.005)
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| | NXT and Windows 7
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| I have Windows 7 RC on my netbook and I can't get the NXT software (version 1.1) to install. It hangs when the installer presents its progress bars and starts copying files off the CD. Does the 2.0 software work with Windows 7? By the way, RIS 2.0 (...) (15 years ago, 27-Jul-09, to lugnet.robotics.nxt, lugnet.robotics.rcx)
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usb, tower
(score: 1.981)
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| | Re: BrickOS Patches and Development
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| The Bibo Patch Rollup Collection posted to SourceForge at (URL) has been updated. This update adds a handful of patch files--20 through 24. 20: Nice group of Linux error/warning fixes from Carl and posted to SourceForge at (URL) Thanks, Carl! 21: (...) (15 years ago, 24-May-09, to lugnet.robotics.rcx.legos)
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ir, tower
(score: 1.965)
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| | RE: IR Problems
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| Elizabeth is quite right. It's easy to get collisions on the IR "bus" if two devices are sending (or replying) simultaneously. What I've done in the past with two RCXs is define one RCX as primary that is periodically (every 100 to 250 milliseconds (...) (18 years ago, 2-Apr-07, to lugnet.robotics.rcx)
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ir, long
(score: 1.964)
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| | Re: BrickOS Patches and Development
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| The Bibo Patch Rollup Collection posted to SourceForge at (URL) been updated. New for this update are patches 41 and 42. 41: Makefiles and the Esterel Synchronous Programming Language - The makefiles were updated to support building Esterel source (...) (15 years ago, 14-Sep-09, to lugnet.robotics.rcx.legos)
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ir, tower
(score: 1.925)
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| | Bibo Rollup Release
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| I've been asked if I could make the patch collection updates available as a full-distribution release. Actually, I can't say that I blame that request. Most of the changes have already been covered in prior lugnet postings under the "BrickOS Patches (...) (15 years ago, 15-Sep-09, to lugnet.robotics.rcx.legos)
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ir, tower
(score: 1.925)
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