 | | Re: NXT Newbie "Is it possible" question
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(...) Well, just for diversity here's a slightly different approach. Make the first block a "Reset Timer" block, then split the program into four sequences. Each is simply a "Wait for Touch Sensor", followed by "Read Timer" block with the result (...) (14 years ago, 24-Aug-10, to lugnet.robotics.nxt)
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| | Re: NXT Newbie "Is it possible" question
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Thanks Kevin! That gives me a good start. once I get some sort of working model, I'll share with world for some good old fashion criticism. Chris (14 years ago, 19-Aug-10, to lugnet.robotics.nxt)
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| | Re: How is this?
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(...) Yes, change the "wait for 9" to be a "check for 9", and the problem should go away... Loop forever if Touched and distance < 9 { turn on motor } else { turn off motor } Kevin (14 years ago, 19-Aug-10, to lugnet.robotics.nxt)
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| | Re: NXT Newbie "Is it possible" question
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(...) Chris, Sure it is, as long as the NXT cables are long enough to place the sensors where you want on the track. As you already figured out, the tricky bits are in the software. Here is pseudocode for what I would do were I to program it in G (...) (14 years ago, 19-Aug-10, to lugnet.robotics.nxt)
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| | NXT Newbie "Is it possible" question
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I am hoping to build a race timer mechanism using my NXT and 4 touch sensors. Essentially I need it to be similar to a pinewood derby timer. I am holding a LEGO car race for our homeschool group, and would love to be able to do all of the timing (...) (14 years ago, 18-Aug-10, to lugnet.robotics.nxt)
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| | NXT-606 VIDEO-Sample Based Drum Machine to download.
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Take a look to video: (URL) Read more about download: (URL) NXT-606: -Monophonic sample based drum machine -24 percussion and Fx sounds -Sampling rate: 8Khz -memory: 96 measures -control: 2 rotation sensor +NXT buttons -hacked loud speaker to mono (...) (14 years ago, 29-Jun-10, to lugnet.robotics.nxt)
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| | Re: Rechargeable NXT battery DOA?
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(...) How long did you leave it plugged in? Sometimes they take a while before even the charging LEDs turn on. -- David Schilling (15 years ago, 31-Mar-10, to lugnet.robotics.nxt)
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| | Rechargeable NXT battery DOA?
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I ordered the rechargeable battery earlier this week and it arrived yesterday. It appears to be DOA as it does nothing when plugged in amd reads 0v with a multimeter. I am using a 9v regulator from a 9v train set which I have been told will work (...) (15 years ago, 27-Mar-10, to lugnet.robotics.nxt)
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| | Re: How is this?
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(...) I can see how this can happen and it depends on the sequence of events. This sequence will cause this behavior: touched AND distance < 9 - Motor turns on touched AND distance > 9 - Motor running, waiting for distance < 9 untouched AND distance (...) (15 years ago, 23-Jan-10, to lugnet.robotics.nxt)
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| | How is this?
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One of my students built the chainsaw model from nxtprograms.com. He wanted to make the blade turn only when it was at a distance less than 9 inches from the table. So he attached an ultrasonic and made one mod to the program. The program in NXT-G (...) (15 years ago, 23-Jan-10, to lugnet.robotics.nxt)
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