 | | Re: Sharp GP2D02 and assembly language
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Hi, I have the same problem. For now I don't care since the GP2D02 is the only thing connected to an digital output. I am using the following: Include: subroutine_get_userval: ldab USERVAL ; load USERVAL to d register clra ; clear upper byte rts ; (...) (26 years ago, 23-Feb-99, to lugnet.robotics.handyboard)
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| | Re: electronics question please help
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(...) You can download the archives from the HB web site: (URL) Will , , __@_/ \_@__ |/ | /__, o @_/ )\ ) ( \ (\/\\, ~~~...~~~ ' ` ~~~...~~~ ` ~~~...~~~ Wendy Parson, A liberal is a man too broadminded Will Bain, to take his own side in a quarrel. & (...) (26 years ago, 23-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Tracking device
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Chen, I am no expert on computer vision, but Greg Hager of Yale University's CS dept. gave a talk at our school last week about developing function libraries for visual tracking. His web page is (URL) It seems relevant to what you are trying to do. (...) (26 years ago, 23-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Tracking device
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(...) If you are trying to track something moving, it is pretty simple, if you have a fixed camera. Take two images, separated by a reasonable amount of time (2 subsequent frames may not be enough). XOR the two frames, everything the same will show (...) (26 years ago, 23-Feb-99, to lugnet.robotics.handyboard)
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| | Re: electronics question please help
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I am new to the list and want to know if there is anykind of archives of old e-mails to the list as I would like to see them. Thanx ___...___ Steve Wall Sir Sandford Fleming college Swall@flemingc.on.ca (26 years ago, 23-Feb-99, to lugnet.robotics.handyboard)
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| | Re: electronics question please help
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(...) I don't think "Less sensitive" and "Sharp IR detector module" go together. When they designed that module, their goal was to make a device as sensitive under all types of conditions. It compensates for changes in ambient light and in flashing (...) (26 years ago, 23-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Tracking device
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hello everyone. my team has been assigned to make a tracking device for our robot making use of a video camera or the camera on this silicon graaphics computer in the lab but i'm not exactly sure how to begin. any suggestions or words of wisdom (...) (26 years ago, 23-Feb-99, to lugnet.robotics.handyboard)
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| | Book Review ??? -Reply
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I bought the "Personal Robot Navigator" last year. The book focuses on the simulation software (came with the book). There is almost no hardware discussions at all and I found that frustrating (especially after reading "Mobile Robots"!) The model (...) (26 years ago, 23-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Stupid Sonars
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Try connecting a 4.7K pull up resistor to VCC on the ECHO pin before the diode. the echo pin is open collector and pull up is provided by the handy board digital input when used as described in the handy board instruction. When you add the diode (...) (26 years ago, 23-Feb-99, to lugnet.robotics.handyboard)
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| | Sharp GP2D02 and assembly language
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Hi, I've written a short assembly language routine to access the Sharp GP2D02 sensor and it works just great but... I have one question. Since I use the expansion board's digital outs to control the sensor I need to make sure my routine doesn't (...) (26 years ago, 23-Feb-99, to lugnet.robotics.handyboard)
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