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Hello people: I´m a student from PUCRS(Brazil) and I have to finish my conclusion Work in my course(Mecatronical Engineering) and I need to Know how I modify the frequency in MC68HC11 set in 500Hz to 5KHz because the drivers need work to control a (...) (24 years ago, 10-May-00, to lugnet.robotics.handyboard)
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| | Sonar (yes, it's me again, with more sonar questions!)
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Today several members of my lab and I decided to solder together the sonar assembly which had been previously been held together by large quantities of duct tape. We decided the 9-pin connection strip would be too flimsy and unnecesarily difficult (...) (24 years ago, 9-May-00, to lugnet.robotics.handyboard)
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| | RE: Household Positioning System Re: DGPS
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Can we use RF for the communication? The concept is much like the actual GPS systems, triangulate the position with 3 or more signals looking forward for a system like this Kalyan (not an Electronics engineer) -----Original Message----- From: (...) (24 years ago, 9-May-00, to lugnet.robotics.handyboard)
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| | Household Positioning System Re: DGPS
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(...) How about a beacon system. Each room can have 3 or so beacons high on the wall. Each beacon flashes at 38Khz and each beacon modulates this 38KHz with its own personal code. The top layer of your robot would have 3 or 4 directional sensors (...) (24 years ago, 9-May-00, to lugnet.robotics.handyboard)
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| | expansion board problems
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hello. i seem to be having an expansion-board problem which is very puzzling. i am using all sixteen ports, and am in the process of putting together a project which requires that it be stored with all sixteen ports occupied for a week or two at a (...) (24 years ago, 9-May-00, to lugnet.robotics.handyboard)
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| | DGPS
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(...) If you use differential GPS (which includes a nearby stationary receiver at a known coordinate) you can get much better resolution -- down to sub-meter accuracy. Still might not be enough to avoid the furniture, though. Forget global. We need (...) (24 years ago, 8-May-00, to lugnet.robotics.handyboard)
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| | Re: Clinton Acts to Make GPS Systems More Accurate
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(...) you're making an outside 'bot? Note: I've heard everything from 6 meters to 17 meters, and I'm not sure of the exact figure yet. I was too busy last week to study the GPS change. Curt Mills, WE7U hacker.NO_*SPAM@tc.fluke.com Senior Methods (...) (24 years ago, 8-May-00, to lugnet.robotics.handyboard)
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| | charger
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Hi, Forgot to tell that the board did download the p-code and seems to work ok with the new battery installed. Also when I plug the charger adapter directly into the handyboard the yellow led flickers between bright and dim for about one minute then (...) (24 years ago, 7-May-00, to lugnet.robotics.handyboard)
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| | battery charger board
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Hi Folks, Had a bad experience with my handyboard thos past week, I left it on charge accidently for two days-could possibly even been in the zap mode I'm not sure. What did happen was the battery was dead ,r-11 was hot and turned black and the (...) (24 years ago, 7-May-00, to lugnet.robotics.handyboard)
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| | Re: sharp GP2D02
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Hi, (...) (24 years ago, 4-May-00, to lugnet.robotics.handyboard)
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