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| Hi all, I have a question concerning baud rates and the SCI port. I looked in one of the pink books and found the maximum baud rate it shows is 131.072k baud. I need it to be 250k baud. I also noticed that the baud rate is dependant on the crystal (...) (28 years ago, 5-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Logic level conversion
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| To convert from 0-3 to 0-5 I would suspect that all you need is a 2N2222 NPN transistor with a couple of resistors to bias it. For example: +5volts 100 ohm resistor collector ---...---0-5 input 0-3v output -----1k resistor ----- base emitter 0volts (...) (26 years ago, 30-Nov-98, to lugnet.robotics.handyboard)
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| | The Challenge (was Re: Train Control)
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| You heard it here: Paul Davidson will join the train group as a full fledged trainiac when DCC is perfected with LEGO trains! How many more people will DCC bring into the fold? Only one way to tell... Paul, we will be seeing you here with increasing (...) (25 years ago, 21-Jan-00, to lugnet.trains)
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| | Re: sensors, actuators, and software, oh my!
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| (...) One...or maybe infinity. Most modern physicists believe that matter and energy are the same thing - and that all forces can be described by some (as yet undiscovered) "Unified Field Theory". In that sense, there is one unified field that is (...) (22 years ago, 4-Apr-03, to lugnet.robotics)
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| | Re: moving in a straight line with two motors?
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| (...) Perhaps you're asking too much of them. Try toning down the pendulum; that is, give it some length below the hinge point as well. As long as it's still top-heavy you're still technically an inverted pendulum, and the added mass below the pivot (...) (26 years ago, 14-Nov-98, to lugnet.robotics)
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| | RE: Questions Regardsing Lego Scout
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| That is fast... The scout is pretty cool, and easy to get going. The commands are best learned by experiment. On/Off button: self explanatory. Run button: ditto. Select button:Cycles you through motion menu, touch menu, light menu, speed of (...) (25 years ago, 17-Sep-99, to lugnet.robotics)
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| | Re: Autonomous Robot
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| What if instead of two counter rotating lasers one tower, we use two towers each with one laser and one non-lego IR emitter that counter rotate at a set speed under the control of an RCX. I believe we can make non-lego emitter/detector pairs that (...) (24 years ago, 11-Aug-00, to lugnet.robotics)
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| | Re: A Generic Idea
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| "Steve Baker" <lego-robotics@crynwr.com> wrote in message news:3E171F4A.400050...ail.net... (...) :) (...) inventions (...) I'm (...) IR-connected (...) enough (...) would (...) processing. (...) legally (...) country. (...) at (...) Ok, if radio (...) (22 years ago, 5-Jan-03, to lugnet.robotics)
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| | Re: BrickFest, here we come!
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| (...) JeffVW's so excited that he gave himself two extra days to get down there in one piece :) rtlToronto Car 2 is leaving Thursday morning. Bringing the rtlToronto contigent up to 8. Add Steve Hassenplug and Doug Carlson (who, even not from (...) (21 years ago, 5-Aug-03, to lugnet.events.brickfest)
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| | USB tower fast firmware download
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| Thanks to Dick Swan's help I have managed to get BricxCC downloading firmware in fast mode with the USB tower. All it took was using long enough timeout values (I'm currently using the tower default timeout settings when downloading firmware), (...) (21 years ago, 11-Sep-03, to lugnet.robotics.rcx)
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| | Re: Plane crash in New York?
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| In lugnet.general, Scott Arthur writes: <snip> (...) This is great but how do you suggest we "tackle the philosophical legitimacy" of whomever did this? And how do you suggest we ensure that events such as these never happen again without all out (...) (23 years ago, 12-Sep-01, to lugnet.general, lugnet.off-topic.debate)
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| | Re: Image processing with RCX
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| "Chris Phillips" <drvegetable@comcast.net> wrote in message news:J9w4L2.GBu@lugnet.com... (...) I wonder how much more viable this camera would be if TLG looked into the possibility of outfitting it with something similar to BlueTooth? While the (...) (18 years ago, 7-Dec-06, to lugnet.robotics)
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| | RE: IR tower question
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| I stripped my IR tower few days ago and draw a partial schematics out of it. TX side. There are two IR diodes connected series. Low power level feed is 100 ohm and high level is 5.6 ohms. Low range diode current is somewhere around 50 mA. I have not (...) (25 years ago, 18-Nov-99, to lugnet.robotics)
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| | Re: General IR question
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| (...) IR sensors (of the type used by the military for night operations for example) operate over some fixed range of IR frequencies - some work in the near IR (or perhaps even somewhat into the Red end of the visible spectrum) - others in the far (...) (22 years ago, 14-May-02, to lugnet.robotics)
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| | Re: sensors, actuators, and software, oh my!
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| Well, I'm guessing your ideas run the gamut of all the standard RF human-generated signals. It might be fun to track satellites, even if you can't decode their signals, I think most are just UHF. Besides standard radio transmissions, there is ULF, (...) (22 years ago, 4-Apr-03, to lugnet.robotics)
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| | Position System
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| I was wondering whether anyone has come up with something so that you can accurately position your robot in a room. I was thinking about a system involving 3 speakers and a tone generator, and a mike. You create a circuit that waits for a sound to (...) (26 years ago, 19-Nov-98, to lugnet.robotics)
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