 | | NXT Ultrasonic reporting wrong values
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A just get my NXT, and everything works fine, but the ultrasonic sensor is not reporting correct values. No matter what distance or direction it is pointed, the readings changes quickly from 1 to 3 inches (3 to 7 cm) even if the sensor is completely (...) (18 years ago, 15-Oct-06, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: NXT-G using RCX items.
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(...) I have a conveter cable so I finally did some tests with NXT-G and here is what I find-- RCX motor runs in both directions, and responds to the speed settings. The touch sensor works. The light sensor measures ambient light. But the bad news (...) (18 years ago, 15-Oct-06, to lugnet.robotics.nxt)
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| | Managing Memory
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I've got 8 kids working on NXT who have been experiencing "not enough memory". So, I did a little experimenting. Every new program takes a minimum of 6K. Every Move Block takes 0.5K Imagine that! 500 bytes for a simple move block. I haven't measured (...) (18 years ago, 14-Oct-06, to lugnet.robotics.nxt)
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| | Re: NXT-G using RCX items.
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(...) Well, you need converter cables of some sort to even connect RCX sensors and motors to the NXT. Beyond that, I'm not sure; I've not tried yet, because I don't have the converter cables to try. I suspect you will need the special NXT-G (...) (18 years ago, 13-Oct-06, to lugnet.robotics.nxt)
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| | NXT-G using RCX items.
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Hello Everyone: I just read the press release regarding the LEGO Mindstorms Education NXT. There is no discount available for their software that allows me to use my RCX motors, sensors etc with the NXT-G. Do I even need their version to run RCX (...) (18 years ago, 13-Oct-06, to lugnet.robotics.nxt)
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| | Re: NXT to RCX Communications
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----- Original Message ----- From: "Brian Davis" <brdavis@iusb.edu> To: <lugnet.robotics.nxt...ugnet.com> Sent: Wednesday, October 04, 2006 10:23 PM Subject: Re: NXT to RCX Communications (...) Thanks Brian. I might as well use the time to try and (...) (18 years ago, 5-Oct-06, to lugnet.robotics.nxt)
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| | Re: NXT to RCX Communications
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(...) No. The light sensor can have the red LED either on or off - you can't set it to "20%" or something like that, and there's no way to toggle the LED fast enough to mimic or RCX-style IR message. But... You could cetainly have a program (...) (18 years ago, 5-Oct-06, to lugnet.robotics.nxt)
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| | NXT to RCX Communications
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Hello everyone: Is it possible for the NXT to send Run Program commands from the NXT to RCX via a light sensor? Here is an example: 1- The NXT Ultrasound sensor detects an object close by, triggers the NXT light sensor to light up at 20 percent (...) (18 years ago, 5-Oct-06, to lugnet.robotics.nxt)
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| | Studless building techniques
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I am working with a couple FLL teams, building with the NXT. I am having a little trouble coaching them on studless building techniques, as it is still a bit of a new concept to me as well. I'm sure I've seen presentations or how-to's on the subject (...) (18 years ago, 3-Oct-06, to lugnet.technic, lugnet.robotics.nxt, lugnet.robotics.edu)
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| | RE: Tacho Limit and Braking
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(...) You can do just about anything with one line of code if you count user subroutine and user macro calls as "one line". The "Rotate" macro in your example expands to four lines of code that sets up and calls a user program subroutine that is (...) (18 years ago, 2-Oct-06, to lugnet.robotics.nxt)
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| | Re: Tacho Limit and Braking
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(...) This made sense, until I read this... In lugnet.robotics.nxt, John Hansen wrote: (...) I had to go back and re-read this to understand one is talking about the NXT firmware, and the other is talking about NBC. If I read it correctly, it means: (...) (18 years ago, 2-Oct-06, to lugnet.robotics.nxt)
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| | Re: Help with NXT-G programming.
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(...) That's just... weird. I've never managed to get something like that. The sequence beam seems to be pinned to the lower edge of the Loop structure, so that even if I make the loop wider, I still can't get to the blind end of the sequence beam. (...) (18 years ago, 2-Oct-06, to lugnet.robotics.nxt)
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| | Re: Tacho Limit and Braking
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(...) This is incorrect. There is no "setout" opcode in RobotC. RobotC uses a proprietary commercial alternate firmware with a completely different set of opcodes and virtual machine functionality than the standard NXT firmware. Unfortunately, the (...) (18 years ago, 2-Oct-06, to lugnet.robotics.nxt)
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| | Help with NXT-G programming.
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Hello, I got my Mindstorm NXT set a few weeks ago. Have built and programmed all the modells that was in the program that came with the set. And now started to make my own robots with the NXT. The NXT-G program looks great and is easy to understand (...) (18 years ago, 2-Oct-06, to lugnet.robotics.nxt)
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| | RE: Tacho Limit and Braking
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If you want to try something a little different, use RobotC to do this. There are several advantages to this: * It can be done with one "setout" opcode. * The RobotC PID algorithm for this type of movement is different than the NXT-G (...) (18 years ago, 2-Oct-06, to lugnet.robotics.nxt)
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| | Re: Tacho Limit and Braking
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(...) The NXT firmware does not support a single operation which has the motor run to a specific tachometer limit and then brake. The only way to do what you would like to do involves several operations. But you can wrap it all up into a reusable (...) (18 years ago, 2-Oct-06, to lugnet.robotics.nxt)
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| | Tacho Limit and Braking
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I started playing with NBC, and wanted to run the motor until it hits the tachometer limit, and then brake. I have been unable to make this happend with one setout opcode. Is it possible? Is it possible to make the opcode wait until the tacho limit (...) (18 years ago, 1-Oct-06, to lugnet.robotics.nxt)
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| | Program with Java using iCommand 0.4
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The latest version of iCommand is out. It's not quite leJOS but it's the closest thing out there until we get into leJOS development. New features: - I2CSensor and UltrasonicSensor support. - Changed API so it duplicates architecture of leJOS API (...) (18 years ago, 23-Sep-06, to lugnet.robotics.nxt)
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| | Danny's Mindstorms new domain
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Hi all! I wish to invite you to update your links: my new (and only) page is now at (URL) you for your attention. Danny (18 years ago, 23-Sep-06, to lugnet.robotics.nxt)
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| | NXT - TiltBot - test of Techno-Stuff Tilt / Accelleration Sensor
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All, I created a NXT bot to test the Techno-Stuff tilt / accelleration sensor. Pics and details here: (URL) (18 years ago, 23-Sep-06, to lugnet.robotics.nxt)
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