 | | 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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| | Re: Expansion board manual
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Is there an expansion board manual like the handyboard manual? if so, where can i find it? =) thanx in advance chen (25 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | RE: Battery Status
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Sort of, I've had a FET driving a solid state relay that allowed me to connect the motor batteries to the system to preserve the system in the case of system battery failure. However the robot wouldn't move under that situation since the reason the (...) (25 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | expansion board
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How does the jumper from the expansion board J19 to digital 7 come into play? Scott Sherman IT Spec. II St. Cloud State University 720 4th Avenue South Academic Computer Services ECC Building, Room 101 (320) 255-4888 (25 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | Re: Navigation & Encoders
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(...) The angle relative to the x axis is given by: theta = arctan((y2 - y1)/(x2 - x1)) Remember, the tangent of an angle is the length of the opposite side divided by the length of the adjacent side of the corresponding unit right triangle (i.e., (...) (25 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | Navigation & Encoders
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I know this is not really handyboard specific but hey... Does anybody know the equation for finding a heading (theta) from a current position P(x,y) to a goal position G(x,y). I sure there's a tangent in there somewhere but I've already dredged up (...) (25 years ago, 4-May-99, to lugnet.robotics.handyboard)
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