 | | 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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| | roboarm activities
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Hi, questions to all the guru out there. I have spent 20 hours on this roboarm. I am hoping to make it work like a color sorter. - pick up a ball wrapped in tin foil and drop it off at a container wrapped up in tin foil as well. - pick up a ball (...) (21 years ago, 2-Oct-05, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
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| | Re: different output power at different ports?
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(...) I've discovered a thread in legofan (URL) that talks about new features of a possible RCX 3.0. Is there more information that can be handed out? - Dave (21 years ago, 22-Aug-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | Re: container in a container error
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(...) Thanks Claude. I look forward to implementing the correction. Tom (21 years ago, 17-Aug-05, to lugnet.robotics.rcx.robolab)
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| | Re: container in a container error
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(...) This just was an forgotten bug that with older Robolab versions didn't harm. The solution is to remove the "Value of red container" and replace it by a blue container constant list ("User3") while selecting "RED". -Claude (21 years ago, 15-Aug-05, to lugnet.robotics.rcx.robolab)
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| | container in a container error
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I have been working with the RoboLab programs created by the Convict School to help me with a project of mine and to teach myself RoboLab. Recently I found the new work done by the school in 2002 (URL) download the files and placed them into the (...) (21 years ago, 13-Aug-05, to lugnet.robotics.rcx.robolab)
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| | RE: good way to detect the proximity of the RCX?
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Yes, that requires the RCX to receive. What I am looking for is a function which is much like the "is RCX in view" in the direct mode. This function allows the IR tower to detect any RCX in range, even the RCX is in in idle state, but just on, .... (...) (21 years ago, 10-Aug-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | Re: good way to detect the proximity of the RCX?
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(...) Not sure what you mean here. You could certainly program some RCX's to "ping" each other to determine if they are in mutual IR range. RCX-A sends out a message & listens for a reply, while any other RCX that "sees" such a message immediately (...) (21 years ago, 10-Aug-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | good way to detect the proximity of the RCX?
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Hi I understand that Robolab has a feature to detect if the RCX is in view thru the direct mode. However, this only means it has to face toward the IR tower which connected to the PC. Then, how about the way a RCX's capability to detect the whether (...) (21 years ago, 9-Aug-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | Re: arrays or for loops
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(...) It's a pleasure! (...) Have a look at an application of the For loop in my pump testing setup here: (URL) look at the waveform graphs that are produced: (URL) try to do that in NQC! CS (21 years ago, 28-Jul-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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| | RE: arrays or for loops
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This is cool! Thanks a bunch. In terms of feasibility and more sophisticated coding, I would perhaps think coding in NQC will be more desirable as far as teaching high school or college kid. My assumption, of course. ---...--- -------- Elizabeth (...) (21 years ago, 28-Jul-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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