 | | GP2d02 Problems
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Greetings all! I just got the Sharp GP2D02 ir distance sensor and I got it all hooked up the way that Barry Brouillette's tutorial explained, and I downloaded the new expansion board drivers, but when I went to load the Barry's IR drivers, it gave (...) (25 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Dumb math question related to Navigation and encoders
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(...) This is actually a very good question. Generally, math function libraries use what is called a Taylor series expansion of a trigonometric function to return an approximation to the function with arbitrary precision. The more terms from the (...) (25 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | HC11 Math Libraries?
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Anyone know which of the following are the most bug-free? All were found at the Motorola ftp site: float11.arc fp11.asm 01/22/1986, R. Soja gmath.asm/gmath.lst 12/30/1988, James Shultz hc11fp.asm/hc11fp.doc 12/04/1995, Gordon Doughman HC11FP11.asm (...) (25 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Purchase in Miami or Boston
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Gleason Research is a very good distributor of HBs. I have bought stuff from them before and I was very pleased. I wouldn't buy it from Patrick Hui, I was very displeased with the quality of the parts he sent me. -Peter (...) (25 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Navigation & Encoders
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(...) Dear Andrew, You want the angle that line joining G and P make with X axis. That is arctan of the slope of the line from P to G. slope =(yP-yG)/(xP-xG) hence, theta = arctan ((yP-yG)/(xP-xG)) where P=(xP,yP) and G=(xG,yG) Note that this angle (...) (25 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Purchase in Miami or Boston
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Hi, can anyone suggest me where to by a Handy Board and the Expansion Board in Miami or Boston, or maybe its better to by it by mail from somewhere else? Fred, just in case, Im using Outlook Express and Im sending this mail with "TEXT without (...) (25 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Dumb math question related to Navigation and encoders
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How do you compute, using Handyboard Interactive C, the Sin, Cos, Tan, Arctan, etc. ? Is there some sort of built in math library file that I can use or is it some sort of formula? I want to implement some rough dead reckoning ability and this stuff (...) (25 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Expansion board manual
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all info about the exp board is on the web page, at (URL) there some specific info that you are missing? fred (...) (25 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | connecting an IR sensor to the board
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Hi! We've been trying to connect an ARTEK "photo-electric" sensor. It is the kind that can be used as a switch : it can only "see" a piece of reflective plastic (like the ones found on a bike, or cat's eyes). However, its supposed to work on 12V. It (...) (25 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: expansion board
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shsc9801@condor.stcl...dstate.edu wrote: <snip> (...) Scott: Do you mean from exp bd J19 to digital 7? - - - Nick - - - (25 years ago, 4-May-99, to lugnet.robotics.handyboard)
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