 | | Re: Bluetooth: Limited to 5?
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(...) Class is over and I'm still wondering why we could not fire up more than 5 bluetooth connections. Actually, these were NXT to NXT connections. The RaceCar project at nxtprograms.com served as the basis for the RC Bluetooth connections. We (...) (13 years ago, 19-Aug-11, to lugnet.robotics.nxt)
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| | Re: Bluetooth: Limited to 5?
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(...) I don't know what the numeric limit is, but there is a limit of some sort, as I heard that Monster Chess ran into it and the central computer has to continually set up and tear down connections to the 32 different pieces, it cannot be in (...) (13 years ago, 19-Aug-11, to lugnet.robotics.nxt)
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| | Bluetooth: Limited to 5?
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I have a class of 10 kids each trying to fire up a remote control via bluetooth to their respective robots. Seems there is a limit of 5 connections to a room? Can anyone confirm? (13 years ago, 19-Aug-11, to lugnet.robotics.nxt)
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| | NXT-G and random number usage
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OK, so I'm on my second ever NXT project, and I am wondering if this is even possible. I have a program that currently has 3 WAIT Blocks, each set to different lengths of time (4 sec, 2 sec, 1 sec) at different points. What I want to do, to add more (...) (13 years ago, 25-May-11, to lugnet.robotics.nxt)
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| | NXT 1.0 models in NXT 2.0?
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I have both 1.0 and 2.0 NXT sets, and I'd like to have all of the models from both versions of the software to appear. I thought I could install both and I'd get both sets of models, but I can't install the 1.0 software- it tells me that I need at (...) (13 years ago, 19-Nov-10, to lugnet.robotics.nxt)
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| | Re: Machine Made of Lego Builds Anything You Want — Out of Lego
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(...) Thanks John, that's really cool. BTW if anyone is having trouble with the page in that link, try this one instead: (URL). Also added a couple of other groups. ROSCO (14 years ago, 21-Oct-10, to lugnet.mediawatch, lugnet.technic, lugnet.robotics.nxt, FTX)
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| | Re: Text languages for programming NXT?
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(...) Last year I tried using RobotC on an RCX, and found it to be buggy and no longer maintained. It worked very well on the NXT, but I was looking for something affordable that I could use in a classroom environment, and that made it easy to (...) (14 years ago, 10-Sep-10, to lugnet.robotics.nxt)
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| | Re: Text languages for programming NXT?
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I'm getting back into Mindstorms after a long hiatus. Let me resurrect this old thread, to see what the answer is in 2010. :-) What text-based languages are most mature and best-supported these days for programming RCX and NXT? Is RobotC still (...) (14 years ago, 28-Aug-10, to lugnet.robotics.nxt)
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| | Re: NXT Newbie "Is it possible" question
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(...) I'm not sure how much time you have, or what resources... but you might be able to do this with a single set. If you put an arm on each motor, such that "track A" would hit a peg and turn the motor clockwise, but "Track B" would hit a peg on (...) (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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(...) 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 (14 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 (...) (14 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 (...) (14 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 (...) (14 years ago, 23-Jan-10, to lugnet.robotics.nxt)
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| | PC - NXT communication with C language
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Hi everybody: I would like to communicate a NXT with a PC through Bluetooth. The NXT program would be NXC, so there is no problem there since NXC provides a set of functions for BT communication. However, I need the PC program to be written in C. Is (...) (14 years ago, 19-Jan-10, to lugnet.robotics.nxt)
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