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 | | Re: Robot Mapping
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| (...) I've been thinking about this too. The problem as I see it is that without some shaft encoders on the wheels, your robot doesn't really know how far it's moved, and therefore where it is in the map. If you power on the forward motor for 2 (...) (26 years ago, 26-Mar-99, to lugnet.robotics.handyboard)
| | | | | RE: Robot Mapping
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| Check this reference out: "Autonomous Agent Map Construction in Unknown Enclosed Environments", Keith L. Doty and Steven L. Seed, Machine Intelligence Lab, DEE, University of Florida, Gainesville, FL and Chapter 10 of: "Sensors for Mobile Robots, (...) (26 years ago, 26-Mar-99, to lugnet.robotics.handyboard)
| | | | | Re: Help with pointers
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| (...) Actually, in 'normal C', to be completely correct you would cast the pointer conversion to show that you really knew what you were doing, like this: p = (char *) &x; Unfortunately, neither the free ware IC nor IC 3.2 support this. Here is (...) (26 years ago, 25-Mar-99, to lugnet.robotics.handyboard)
| | | | | Re: Robot Mapping
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| I would also like to know about this. please cc any info to me too. =) chen (...) (26 years ago, 25-Mar-99, to lugnet.robotics.handyboard)
| | | | | RE: Sharp GP2D02
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| Scott, The reason I wrote mine the way I did was so that I could avoid disabling interrupts for long periods of time. If you don't care about timer interrupts or things like wheel encoders, either program should work fine. My program uses digital 15 (...) (26 years ago, 25-Mar-99, to lugnet.robotics.handyboard)
| | | | | Robot Mapping
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| Hello, I am working on an autonomous mobile robot. Which has a sonar and infared sensor incorporated into it. Right now it can avoid objects, by sensing it and backing up and turning. I want my robot to take the information from the sensors and map (...) (26 years ago, 25-Mar-99, to lugnet.robotics.handyboard)
| | | | | Re: Help with pointers
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| (...) When you do pointer arithmatic, you work in increments of what the pointer points to. So if you have a pointer to an int, as in the above example, when you add one to it, you actually make it point to the next int, not the next byte or word. (...) (26 years ago, 25-Mar-99, to lugnet.robotics.handyboard)
| | | | | Re: HB Memory
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| Stef, The HB comes with a 32K ram chip addressed at $8000 and above. A fair amount of this space is taken up with the Pcode interpreter if you run Interactive C, but there is still lots of room left for programs. Good luck, Gary Livick (26 years ago, 25-Mar-99, to lugnet.robotics.handyboard)
| | | | | Sharp GP2D02
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| I purchased two Sharp GP2D02 infrared sensors from Acroname and downloaded their interface to a Handy Board and Barry Brouilette's interface to the Handy Board. I was wondering which any of you have used and why so I can select one to use on in my (...) (26 years ago, 25-Mar-99, to lugnet.robotics.handyboard)
| | | | | Help with pointers
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| Hi all little question: How can I ad a value to a pointer ?? int *px, x; px = &x; px = px + 1; (????? pointing to the lowbyte of x for example) Is it just NOT possible with IC or am I missunderstanding anything ???? Thanks for any help. -- Thomas (...) (26 years ago, 25-Mar-99, to lugnet.robotics.handyboard)
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