 | | Re: !!! Laser attachments for Mindstorms !!!
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You can also take the "lens" out of the front of a good laser pointer and it does the same thing. KL (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | stalled motor detection
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Hi all, I'm working on a dead reckoning 'bot. I'm not really interested in what the wheels are doing unless they're stalled. Anyone know any good tricks for monitoring the motor current, or should I go with shaft encoders anyway? Thanks! Paul (26 years ago, 27-Oct-99, to lugnet.robotics.handyboard)
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| | Re: !!! Laser attachments for Mindstorms !!!
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(...) Why spend money on a laser, that should have a focused beam, when all you're going to do basically, is turn it into a flashlight? (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: controlling RCX from PC?!
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(...) thanks matthew and arjen! that's exactly what i am going to do. what i did not realize at first is that 2400 baud actually *is* way too slow, as 2400 bits/s is only 240 bytes per second. a message has a length of around 10 bytes (depending on (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | Re: Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
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(...) I think major areas of education will [have to] end up going through the same push->pull revolution that traditional media have begun to go through in recent years. Pushing television shows, commercials, movies -- and especially news -- in (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc, lugnet.admin.general)
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| | Re: Group to discuss Teaching Lego Robotics?? lugnet.robotics.teaching ???
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(...) I'll see to it. --Todd (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.nqc, lugnet.admin.general)
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| | Re: Chaining multiple RCX's output to input
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(...) Pop a 10K ohm resistor in series with the motor. On my quick test with a variable resistor I got a value of 513 with the resistor at 9.7k. With a 10k resistor, the RCX raw value is now flickering between 510 and 511. P.S. same with the older (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | RE: Double echo
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(...) Yup. Dave tells me he is working on integrating the speedier loader into NQC or even making standalone loaders by themselves... Sergey, which features do you REALLY want/need for the next release. I'm doing the following... 1. ECHO_ON/ECHO_OFF (...) (26 years ago, 27-Oct-99, to lugnet.robotics.rcx.pbforth)
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| | Re: !!! Laser attachments for Mindstorms !!!
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I think that a good way to have a lasertag competition is to have an arena with many walls to hide behind, and have the robots programmed with different tactics of defense and offense. It's not hard to make an IR light beacon on top of each robot, (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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| | RE: !!! Laser attachments for Mindstorms !!!
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If you remove the lens from (I suspect) most pointers, you won't get a beam of light at all, even a conical one. Most laser diodes are essentially "point" sources, the light goes in any direction it can (think flat lightbulb). Moving the lens closer (...) (26 years ago, 27-Oct-99, to lugnet.robotics)
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