 | | Re: communication between NXT and RCX!?
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(...) The NXT has a new sensor control bus. That allows many ways to interact almost anything you want. From Hear-say i have heared that HiTechnics is building an NXT - IR converter in the size of a NXT sensor.. Daniel Wittenaar Brickbash Robotics (20 years ago, 5-Mar-06, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | Power down time
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In The administrator section you can set the power down time - the time that the RCX will stay on, unattended. The range is 0-255 with 0 meaning always on, and the rest in minutes. No matter what time I choose, I can't make this work all the time. (...) (20 years ago, 16-Feb-06, to lugnet.robotics.rcx.robolab)
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| | communication between NXT and RCX!?
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Since the NXT does not have IR capability, it will not be communicate with the RCX brick. If there is no such plan from LEGO to build in the new NXT such capability, I am afraid they are going to put RCX brick in an obsolete track!? O, no! ---...--- (...) (20 years ago, 9-Jan-06, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | The NXT generation version
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from the lego press release... ...The heart of the new system is the NXT brick, an autonomous 32-bit LEGO microprocessor that can be programmed using a PC, or for the first time in the retail offering, a Mac. After building their robots, users (...) (20 years ago, 5-Jan-06, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | The NXT generation version
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Approved: emabrey@storming-robots.com from the lego press release... ...The heart of the new system is the NXT brick, an autonomous 32-bit LEGO microprocessor that can be programmed using a PC, or for the first time in the retail offering, a Mac. (...) (20 years ago, 5-Jan-06, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | the new MINDSTORMS NXT
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Hi everyone, Wonder if anyone knows much about the NXT. Exciting addition, but I am concerned with the software compatibility with the future Robolab 3.0. From what I understand, beta Robolab 3.0 only is underway for Mac platform. How about the (...) (20 years ago, 5-Jan-06, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | Re: avoid messaging
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(...) I'd agree that a physical block is the easiest, although there is a software solution. The RCX can not recieve a command while it's transmitting - so if you saturate the transmitter with things to do, it will not be able to "look" for any (...) (20 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | RE: avoid messaging
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Yes, I indeed have an attachment which will act like blockage, but not a full one though. Sounds like this is the fastest and easiest to do. I fully understand the opcodes concept, as I myself wrote compile code before. However, these kids age only (...) (20 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | Re: avoid messaging
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(...) If you have an event waiting for a message, I doubt it will have much impact on the speed of the rest of the program. However, this will not catch the messages you're looking for. You can't use the "mail" function to receive op-code, such as (...) (20 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | avoid messaging
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Hi In order to avoid unwanted interruption, such as remote shutdown, from other RCX during execution time, I wonder if the only thing can be done to safe-guard my RCX will be having an independent task dedicated to receive message (mail). This, of (...) (20 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | using rotation sensor
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Most of you are aware of the speed of the robot often causes parity in distance via the feedback of rotation sensors because of inertia. In our experiment, even with a robot with moderate speed. The parity seems to often occur right at the beginning (...) (20 years ago, 30-Nov-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
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| | RE: different light readings...
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Hi David, I am sorry that I did not clarify my question. Thank you very much for taking the time out to help though! I fully understand that variations that light sensor produces, and I do make calibration the first thing to do before I run my bots. (...) (20 years ago, 15-Nov-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | Re: different light readings...
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(...) Different light sensors will produce different readings. The range of readings you get will also vary between different light sensors (for example, between the same white surface, and the same black surface, one light sensor might have a (...) (20 years ago, 15-Nov-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | different light readings...
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Hi, I have these 2 different light sensors. One reads "41" vs another reads "34" on the same area. I have troubleshoot it by switching ports, different RCX brick. The reading different stays the same. Is this reasonable because they might have a (...) (20 years ago, 14-Nov-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | Robolab Motor Settings - ATTN. Dick Swan
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Hello Dick, I am working with a professor at the University of Central Florida and we would like to use the Robolab software for several of our robotics classes. The one issue we see in doing that is that the motor settings in the software only (...) (20 years ago, 13-Nov-05, to lugnet.robotics.rcx.robolab)
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| | Re: explain polarity to middle school children
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(...) Hmmmm, that is a challange, because any cursory example leaves out the physics. I was just thinking perhaps if you likend polarity to a visual of a two lane highway. Trafic going in opposite directions. Flow and return. On the surface, (...) (20 years ago, 9-Nov-05, to lugnet.robotics.rcx.robolab)
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| | explain polarity to middle school children
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I tried to create a couple of images to explain give children, age 10 to 12, a good understanding of what polarity is. They all know changing the direction of the motor. However, I am trying to provide more details without going over their head. (...) (20 years ago, 9-Nov-05, to lugnet.robotics.rcx.robolab)
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| | Re: programming tips
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(...) With the standard firmware, not that I know of. You *can* block all incoming signals by continuously broadcasting. Having a task repeatedly transmit a simple message endlessly means that the RCX can't recieve normal messages, possibly (...) (20 years ago, 2-Nov-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | programming tips
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Hi, I am contemplating if it is smart way to intercept un-welcoming signal to the RCX, such as the remote shutdown, etc. ---...--- -------- Best Regards, Elizabeth Mabrey (20 years ago, 2-Nov-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | Re: roboarm activities
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(...) I found that either rotating a colour wheel in front of the sensor(with its distance LED off) in combination with a white light -or- using a coloured LED at a _very_ close distance works well; i.e. most materials give a marked response as long (...) (21 years ago, 3-Oct-05, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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