Subject:
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Ooops! NXT Software Comparison correction
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Newsgroups:
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lugnet.robotics.nxt
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Date:
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Sat, 1 Sep 2007 17:58:21 GMT
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Viewed:
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22202 times
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My bad. When I fiddled with the pbLua code I forgot to turn on the motors
and neglected to change the Motor A speed. So when you ran the program, the
motors didn't move. I also had uploaded the wrong version to my web site of
the version that shows all the displays in the loop. The version I uploaded
only showed one.
New numbers are:
Loops per minute with all displays in the loop = 18K
Loops per minute with displays commented out = 31K
Code showing all the displays:
http://firstcoolbreeze.home.comcast.net/steveTest/steveTest13c.txt
Code with the displays commented out:
http://firstcoolbreeze.home.comcast.net/steveTest/steveTest13cNP.txt
I found this as I was testing the NXC speed test. I had the brick connected
to Tribot and the motors started moving so I realized that my pbLua code
needed some work.
I can only get 1784 loops per minute on the NXC code, instead of the 4285
noted on the Team Hassenplug web site.
I tried commenting out the displays on the NXC code and got 1875 loops per
minute, but the NXT brick itself was updating the display with a changing
icon to show that a program was running, so it appears that there is no way
to stop the display action completely.
Walt White
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Message has 1 Reply:
 | | Re: Ooops! NXT Software Comparison correction
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| (...) Nearly all of the speed test numbers on Steve's page are wrong. That's because Steve's loop boils down to "how fast can you reliably read the LEGO Ultrasonic Sensor". You can't reliably read a value from that device faster than about once (...) (17 years ago, 2-Sep-07, to lugnet.robotics.nxt)
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