 | | V2X Compass
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I have recently obtained a digital compass circuit as part of a clock (it lights an led that points north) but haven't yet tried to interface with it. I think it will be communicating via SPI but I'm not sure. The question I want to ask anybody with (...) (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
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| | Serial problems
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Hello, I am trying to get my handyboard working after it has been in a box for a long time. It used to work flawlessly but now I am having trouble downloading the pcode. I did all of the checks for the serial/charger board in the assembly (...) (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Sonar questions (technical ones!)
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My sonar seems to be pretty accurate. I would notice a 25% difference. ??? Check your calculations. Maybe you missed something. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of (...) (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
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| | Sonar questions (technical ones!)
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Hello everyone, A few sonar questions (other than where to buy them): 1: The speed of sound has been widely quoted to be 0.9 ft/ms (274m/s), but my Physics text lists it as 343 m/s (at 20C/70F), which is about 1.13 ft/ms, or 25% faster. So why the (...) (27 years ago, 25-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Sonar kits (jluijk, willbain,)
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(...) At the bottom of the following page are a couple links to vendors: (URL) page is on the Handy Board site; hit the Software link, then Libraries, then follow the Polaroid sonar link.) In addition, the Robot Store in California sells 'em, but (...) (27 years ago, 25-Feb-98, to lugnet.robotics.handyboard)
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