 | | Four-stroke pneumatic pump
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Here is my last creation, a four-stroke pneumatic compressor. (URL) only special parts are the small pumps and the crankshaft pieces. This compressor can also be build up partly. I mean you can use one or two pumps instead of four. Depending on the (...) (17 years ago, 25-Oct-07, to lugnet.robotics, lugnet.announce) !
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| | nbc gives error for SendRemoteString
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Hi, has there been an undocumented change in the last nbc? I have some programs that use SendRemoteString and I cannot compile them any more (they compile with older versions). This minimal prog: ---...--- task main() { string out; out="String"; (...) (17 years ago, 23-Oct-07, to lugnet.robotics.nxt)
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| | Walker useing new leg design
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After a few long weeks of tinkering, I think Ive settled on a final design that I would like to display at the (URL) Toronto Hobby show.> (URL) This is a six leg walker, that uses the leg design of (URL) Theo Jansen> After seeing his video (URL) (...) (17 years ago, 19-Oct-07, to lugnet.technic, lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.announce.moc, FTX) !!
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| | Re: Source Code Changes in NXT Firmware Version 1.05
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(...) The changes between 1.03 and 1.04 are far more extensive than the changes from 1.04 and 1.05, if you lump the support for ADPCM compression into a single change (which involves c_sound.c, d_sound.c, d_sound.h, d_sound.r, d_sound_adpcm.r, and (...) (17 years ago, 18-Oct-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Source Code Changes in NXT Firmware Version 1.05
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I haven't seen it previously mentioned but the open source firmware for version 1.05 is downloadable from the LEGO Mindstorms web site. I did a WINDIFF on the various source files to see what has changed in this release. I then manually examined the (...) (17 years ago, 17-Oct-07, to lugnet.robotics, lugnet.robotics.nxt)
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| | Re: Powering 9v Trains using the NXT
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(...) Are you using the NXT on batteries alone, or using the Li-ion battery pack so you can plug the NXT into a wall for more consistant power? (...) As others have noted, this has worked well with the RCX. It's essentially how the GBC trains are (...) (17 years ago, 17-Oct-07, to lugnet.robotics, lugnet.org.us.ulug)
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| | Re: Powering 9v Trains using the NXT
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(...) I'm not sure if there's a better way, and I haven't tried it with an NXT, but I've had good luck with option 2 using an RCX. I isolated the track by putting a bit of clear tape over the ends that connect to the other track sections. -Elroy (17 years ago, 17-Oct-07, to lugnet.robotics, lugnet.org.us.ulug)
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| | Powering 9v Trains using the NXT
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To all, I would like to find a way (simple way that is) to power our LTC 9v trains using both the standard LEGO 9v train modulator and the NXT. We have attempted the following: 1- Power the train simply using the NXT and the converter cables. Too (...) (17 years ago, 17-Oct-07, to lugnet.robotics, lugnet.org.us.ulug)
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| | Ultrasonic sensor calibration settings
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Hi, Has anyone tried using the standard NXT Ultrasonic sensor calibration settings? I've been doing a little work on the leJOS i2c interface and although I can read both the factory default values and the current settings I do not seem to be able to (...) (17 years ago, 17-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: ARM Assembly Language Programming on NXT?
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Hi T.C. (...) aha. I just programmed some startup and interrupt wrapper code (the rest is C), so I didn't get into the higher reaches of macros etc. Jürgen (17 years ago, 16-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: ARM Assembly Language Programming on NXT?
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(...) Sorry, I found a more recent version, but it's still missing some parts on the ARM architecture: (URL) also found the following Intro guide (which is better than nothing): (URL) (17 years ago, 16-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: ARM Assembly Language Programming on NXT?
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Hi Juergen, Thanks for replying. (...) Thanks for the info. My goal is to run and debug ARM assembly language programs executing in RAM. I was not familiar with the NXT, so currently I'm looking at the on-board capabilities. I realized after some (...) (17 years ago, 16-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: Prime number generator
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(...) SetUserDisplay hooks up the display to whatever source you specify and until you tell it to hook up to a different source it will continue to display the value of that source until the program ends. The first time that your NQC code enters the (...) (17 years ago, 15-Oct-07, to lugnet.robotics)
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| | (In)compatibility of RC Trains and Power-Functions
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I am trying to determine whether there is any compatibility between the RC trains infrared remote-control protocol and the Power-Functions infrared-protocol. Does anybody know definitely whether a Power-Functions transmitter has any effect on an (...) (17 years ago, 14-Oct-07, to lugnet.trains, lugnet.robotics, lugnet.technic)
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| | Re: ARM Assembly Language Programming on NXT?
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Hi T.C., (...) I have an AT91SAM7S-EK here, it has 4 LEDs and 4 touch buttons. It should also be fairly easy to write a driver for one of the serial ports (polling would suffice for a start). On the NXT the only I/O that is easy to use with the (...) (17 years ago, 14-Oct-07, to lugnet.robotics.nxt.nxthacking)
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| | Prime number generator
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I've been trying to write a prime number generator in NQC by way of exercise to improve my programming skills, but I've run into some unexpected trouble. I have two sets of code that are virtually identical, one in NQC and the other in plain C. The (...) (17 years ago, 13-Oct-07, to lugnet.robotics)
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| | NXT Power Programming
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I’d like to officially announce that Variant Press will soon publish my new book, NXT Power Programming. It should be available November 7th. You can pre-order it now at Amazon.com or Variant Press. I hope everyone who purchases a copy of NXT Power (...) (17 years ago, 11-Oct-07, to lugnet.announce, lugnet.robotics, lugnet.robotics.nxt) !
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| | Re: Mindstorms NXT 1.1
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(...) Thanks Matthias, I did read that discussion; but I hadn't realized the people who said they called actually received it for free. My understanding was that they were in countries were it's listed as "not available yet" (such as Germany or (...) (17 years ago, 10-Oct-07, to lugnet.robotics.nxt)
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| | Re: Mindstorms NXT 1.1
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Thanks Philo, I should have thought to check nxtasy on the subject. Looks like there are a lot of improvements; but then again what interests me most is full support of my computer, which the current software doesn't provide. A patch, in short. On (...) (17 years ago, 10-Oct-07, to lugnet.robotics.nxt)
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| | Re: Mindstorms NXT 1.1
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There has been an according post on THE NXT STEP one week ago ((URL) a lot of comments of users there state that they have received it free of charge. I also do not understand why it is not available in Germany - that's ludicrous for an (...) (17 years ago, 10-Oct-07, to lugnet.robotics.nxt)
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