 | | Re: Homebrew Sonar
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Here's an idea for homebrew sonar that I keep mulling over but haven't built yet. If anyone builds one of these be sure and tell me if it doesn't work so I won't :-) Basically the idea goes like this: take a signal generator (like the EXAR chip) and (...) (27 years ago, 17-Sep-97, to lugnet.robotics.handyboard)
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| | Re: Homebrew Sonar
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Check out (URL) There's some basic theory and 6811 assembly code in there for doing time-of-flight stuff with el cheapo 40kHz transducers we got from All Electronics Corp and some homebrew circuitry. Colby --- "King, Terry" wrote: (...) --- end of (...) (27 years ago, 17-Sep-97, to lugnet.robotics.handyboard)
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| | Homebrew Sonar
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(...) Check this site out, it might be what your looking for: (URL) pretty complete with theory, schematics, construction advice, etc.. I hope it helps. Terry King Terry.King@fmr.com (27 years ago, 17-Sep-97, to lugnet.robotics.handyboard)
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| | mc68hc11
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hi Are all chips in the mc68hc11 family alike? in other words, coulda mc68hc11a1fn chip replace any other mc68hc11 chip? Ore are the circuitry diffrent? Also, i was checking out motorolla's mc68hc11 website, and they had a 'hc11 referense and (...) (27 years ago, 17-Sep-97, to lugnet.robotics.handyboard)
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| | Re: mc68hc11a1fn
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(...) Check out (URL) for 6811 info, Motorola's own site with a wealth of good downloadable stuff. Regards Colin Barnard Miranda Robotics 'O brave new world that has such creatures in it' 54 London Road Teynham Kent ME9 9QN England (27 years ago, 16-Sep-97, to lugnet.robotics.handyboard)
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| | Re: mc68hc11a1fn and sonar
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Hi, In addition to de reference manual I started reading a book called "Microcontroller technonoly, the 68hc11" by Peter Spasov (ISBN-0-13-583568-2). I think it's a rather good book. It begins with the fundamentals of microcontrollers. It handles (...) (27 years ago, 16-Sep-97, to lugnet.robotics.handyboard)
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| | mc68hc11a1fn and sonar
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hello, everyone I have 2 questions: Does anyone know of any good books or sites about the motorolla mc68hc11 family? I'd like to understand on how this actually works and stuff. Is the Motorola mc68hc11 reference manual a good book for the job? Are (...) (27 years ago, 16-Sep-97, to lugnet.robotics.handyboard)
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| | PCode
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Hello, I'm trying to decipher IC's command stream w/ the handyboard. I've downloaded the IC source, but before spend a lot of time munging the code, are there other documents describing the theory of the Pcode interpreter? I imagine it was a lot of (...) (27 years ago, 16-Sep-97, to lugnet.robotics.handyboard)
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| | Re: IR and Sonar
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Try Radio Shack, Digikey, Mouser Electronics for IR stuff. Polaroid OEM Components Group. 800 392-1170 2 sonars for $99. It's a bit pricey so whether it's worth the money depends on you. It may be worth is just to get used to tinkering with (...) (27 years ago, 15-Sep-97, to lugnet.robotics.handyboard)
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| | Dual Hall Effect Sensor hook up
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I have the Micro 8SS27 dual hall effect sensor (received from Gleason Research), which I intend to use for a shaft encoder. Can someone help me figure out how to hook it up? Thanks. To get random signatures put text files into a folder called (...) (27 years ago, 15-Sep-97, to lugnet.robotics.handyboard)
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