 | | Re: Robot events at BrickFest™ 2007
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(...) Considering the VAST number of responses I've already received, you might just win by putting your NXT brick on the sumo table! Of course, if you add motors and wheels, and drive forward without falling off the table, you'd even get the bonus (...) (18 years ago, 13-Mar-07, to lugnet.events.brickfest, lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) I found again an old code I wrote for Cybermaster to do avoiding based on tacho slowdown. The trick is indeed to drive at a low power level, or the wheels simply sleep and there is not enough slowdown to be reliable. Philo ---...--- task main (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | lejos on UBUNTU linux?
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Hi, I'm trying to build the lejos release on UBUNTU linux and I get the following error. Any help appreciated. Thanks, Ted pawlicki@robotnik:~/lego/build$ ant Buildfile: build.xml clean: [echo] saving existing files to .bak files libnxt: [taskdef] (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | Re: Robot events at BrickFest™ 2007
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Ooh, NXT-Sumo! David, I sure hope you'll be running your "Getting to know the NXT" breakout session BEFORE the sumo contest is held! My NXT remains sealed and unopened on a shelf in my Lego room. I'll bring it, and maybe I'll learn enough to be (...) (18 years ago, 13-Mar-07, to lugnet.events.brickfest, lugnet.robotics, FTX)
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| | Re: TachoSpeed.nqc
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(...) The question you need to answer for yourself is this: Do I want my robot to to potentially execute both if blocks in sequence or do I only want the second if block to execute if the first condition is known to be false? If you only want the (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) For the RCX wait times are in 1/100 of a second. Is that the same for the Cybermaster? If so the reverse and turn times are a little short (as well as the motor ramp up period). I could see how it would be difficult to notice the robot backup (...) (18 years ago, 13-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) Sorry. I meant to say 'the brick never executes the if statement'. (...) I don't see 1) how I could make an if/else statement or 2) what the benefit would be. 1) If I make an if/else statement isn't 'else' executed always if 'if' is not true? (...) (18 years ago, 12-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) You assumed correctly. Without the wait the if statement is always executed immediately. I see what you mean: by taking the wait out of the start of the loop the sensors are checked more frequently. That doesn't solve the riddle though, (...) (18 years ago, 12-Mar-07, to lugnet.robotics)
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| | NXT now has atan2 function block
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Download atan2 (and atan, sin, cos, sqrt blocks) at www.convict.lu/Jeune...sIntro.htm for NXT-G. Please report any bugs. (18 years ago, 12-Mar-07, to lugnet.robotics)
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| | Re: TachoSpeed.nqc
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(...) I don't really understand what you mean when you say "the brick doesn't do anything". Can you be more specific? (...) They will both be executed in sequence if at the time the second if statement reads the TachoSpeed setting on OUT_L it (...) (18 years ago, 12-Mar-07, to lugnet.robotics)
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