 | | NXT Optimized Array Handling
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There doesn't seem to be any information on the most memory-efficient or speed-effecient way to handle arrays in the NXT Executable File Specification. For example, if you want to create a multi-dimensional array, you use the opcode OP_ARRBUILD (...) (18 years ago, 28-Dec-06, to lugnet.robotics.nxt)
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| | Connect BT devices to the NXT without a passkey?
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Is it possible to connect BT devices to an NXT without using a passkey? The device I'm trying to use (a Nintendo Wii remote) doesn't use passkeys, AFAIK, since when I connect it to my PC I skip the pairing process. (18 years ago, 28-Dec-06, to lugnet.robotics.nxt, lugnet.robotics)
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| | Omni teaches physics.
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I've posted some project of mine, demonstrating how Steve Hassenplug's "Omni" can be used to teach some basic physics: (URL) Ziv NXTasy.org (18 years ago, 27-Dec-06, to lugnet.robotics.nxt)
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| | Re: Bluetooth and windows 2000
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I am using a Compaq (HP) nc8000 laptop which has a built-in BT device and it works fine with Windows 2000, so BT should be OK on W2K (with the right device). "Patrick Levy" <patrick@omiccron.com.br> wrote in message news:J7HJJI.6x3@lugnet.com... (...) (18 years ago, 24-Dec-06, to lugnet.robotics, lugnet.robotics.nxt)
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| | PSP-Nx PS2 Controller block for NXT-G
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I've finally released my NXT-G block for mindsensors.com PSP-Nx PS2 controller interface. Details, download and installation instructions are here: (URL) Ziv NXTasy.org (18 years ago, 20-Dec-06, to lugnet.robotics.nxt)
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| | Arrays in NXT-G
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I've made a new NXT-G block for using numeric arrays in NXT-G. Details and download are found here: (URL) Ziv NXTasy.org (18 years ago, 20-Dec-06, to lugnet.robotics.nxt)
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| | Not eXactly C beta release news
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Today I am releasing a new beta of NBC and its highly popular high-level sister Not eXactly C (NXC). It is available via the NBC website ((URL) sure to also download the latest BricxCC test release for updated NXT support for both NBC and NXC ((URL) (...) (18 years ago, 20-Dec-06, to lugnet.robotics.nxt, lugnet.robotics)
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| | Re: NXT Firmware source code
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(...) Not to put too fine a point on it, but the 100 cycle limit is only on the lock bits, I think. This is specified at the extreme limits of voltage and temperature. At normal room conditions, actual NXTs were reflashed (which cycles the lock (...) (18 years ago, 19-Dec-06, to lugnet.robotics.nxt)
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| | Re: NXT Firmware source code
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"Steve Lane yahoo.co.uk>" <stevenrobertlane@<n...pamplease> wrote in message news:JABnK0.15z@lugnet.com... (...) Fortunately the most common failure mode is a reduction in the "longevity" of storage. Out of box, the Atmel ARM flash is specified to (...) (18 years ago, 18-Dec-06, to lugnet.robotics.nxt)
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| | Re: Has anyone figured out how to improve the NXT light sensor?
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(...) Yes. I didn't end up using it because speed ended up being more critical than precision, but for narrow lines I may go back to it. I suspect I might be able to use it to follow lines drawn by a black marker. (...) No. Well, kind of. I used a (...) (18 years ago, 18-Dec-06, to lugnet.robotics.nxt)
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| | Re: NXT candid camera
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(...) The second video is better, I think. Spike was always my favorite NXT robot. (18 years ago, 18-Dec-06, to lugnet.robotics.nxt, lugnet.mediawatch)
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| | Re: Has anyone figured out how to improve the NXT light sensor?
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Hi Geoffrey, (...) Detecting 1x1 plates should not be hard if they pass close to fiber optic end to efficiently block light. (...) I believe it's caused by the blue background I used that somewhat fooled my camera white balance. That said there is a (...) (18 years ago, 18-Dec-06, to lugnet.robotics.nxt)
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| | Re: Has anyone figured out how to improve the NXT light sensor?
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(...) Hi Brian, What kind of application needed this precision? Line follower? Did you need to shield the fiber to avoid stray coupling of light to the phototransistor? Philo (18 years ago, 18-Dec-06, to lugnet.robotics.nxt)
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| | NXT candid camera
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LEGO has posted two short movies of NXT robots playing tricks to people in a toys store... (URL) Don't forget to click on the thumbnail below to watch the second video. Have fun! Philo (18 years ago, 18-Dec-06, to lugnet.announce, lugnet.robotics.nxt, lugnet.mediawatch)
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| | Re: NXT Firmware source code
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(...) Ralph - I'll send them to you. If you want, mail me the byte format and I'll see if I can run a conversion. I presume it's in the vertical byte format that the screen uses? I did a full 256 character set that includes upper case, lower case, (...) (18 years ago, 18-Dec-06, to lugnet.robotics.nxt)
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| | Re: Has anyone figured out how to improve the NXT light sensor?
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(...) I've also used this the other way around, using a fiber optic cable to route light to the phototransistor itself. Do this with more than one light sensor, and you can have much better spatial resolution (the ends of two fiber optic cables can (...) (18 years ago, 18-Dec-06, to lugnet.robotics.nxt)
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| | Re: Has anyone figured out how to improve the NXT light sensor?
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"Philippe Hurbain" <philohome@free.fr> wrote in message news:JAF8tF.16H@lugnet.com... (...) That's good to hear. (...) I'll have to download and check out your program. It looks great! I'll also have to see if I can get the sensor to detect 1x1 (...) (18 years ago, 18-Dec-06, to lugnet.robotics.nxt)
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| | Re: Has anyone figured out how to improve the NXT light sensor?
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Hello Geoffrey, (...) First, don't worry about heat - such leds are really cool (thermically wise) devices! This one dissipates only about 20 mW... Your fiber optic cable idea is interesting... and it works well! I used the fiber optic cable (...) (18 years ago, 17-Dec-06, to lugnet.robotics.nxt)
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| | Feed Me! Feed Me! Feed Me!
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What can I say? This hungry little fellow is a very picky eater. He is hungry. If you don’t feed him often, he demands food. But when you do feed him, he says that the food is disgusting and spits it out. If you are looking for a compact robot with (...) (18 years ago, 17-Dec-06, to lugnet.robotics.nxt, FTX)
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| | Has anyone figured out how to improve the NXT light sensor?
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I'm looking for ways to build this sensor into a studless beam project of mine, and I was wondering, given it's large size and the comparative brightness of the LED used to light it, how can I use it to detect if an object is blocking a path? (...) (18 years ago, 16-Dec-06, to lugnet.robotics.nxt)
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