 | | Re: Robot Mapping
|
|
(...) 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
|
|
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
|
|
(...) 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
|
|
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
|
|
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
|
|
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
|
|
(...) 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
|
|
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
|
|
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
|
|
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)
|
| |
| | HB Memory
|
|
Excuse me, I have not yet my hb and I'd like to know how much memory has it (max size). Thanks Stefano Falconetti (26 years ago, 25-Mar-99, to lugnet.robotics.handyboard)
|
| |
| | Simtek part #
|
|
In response to the requests I've had on a part # for the Simtek memory. I tried the: STK15C88 W45 (26 years ago, 24-Mar-99, to lugnet.robotics.handyboard)
|
| |
| | Little more info on the Simtek mem chips
|
|
I did a little more playin last nite with the Simtek mem chips. Whether or not the Mem chips will save memory depends on a few things. If I am powering the HB with the serial/charger line and unplug it, the Simtek chips will hold their memory. If I (...) (26 years ago, 24-Mar-99, to lugnet.robotics.handyboard)
|
| |
| | Source Of GP2DO2
|
|
Hi all, I am located in Sydney. I want to buy some IR detector GP2DO2 (sharp). These are not available in Australia. Can any body give me a reference of any stockiest located in USA, who can send me these detectors. I will be highly obliged. Regards (...) (26 years ago, 24-Mar-99, to lugnet.robotics.handyboard)
|
| |
| | Re: help with ICC11
|
|
(...) Hi Gary, I haven't used ICC with the HB but I do use it with the miniboard. I've had good luck with dlm which I believe is available from the HB site. Karl Lunt (who wrote the brilliant SBasic compiler for the 6811) has a version of motorola's (...) (26 years ago, 23-Mar-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Simtek memory
|
|
(...) [short snip] Problem is the Simtek chip needs a few (...) Bruce, they *do* work well. I haven't had to add any caps. I just plugged it in and it worked 8^]. And they don't collide with the LCD or exp. board like the Dallas battery backed (...) (26 years ago, 23-Mar-99, to lugnet.robotics.handyboard)
|
| |
| | Re: help with ICC11
|
|
I'm using win98 an ICC11. I was unable to get ICC11 to communicate with my handybaord. I instead used hbdl to download the output (s19 file) from ICC11 to my handyboard. This worked without problems. My biggest problem was that in my project I (...) (26 years ago, 23-Mar-99, to lugnet.robotics.handyboard)
|
| |
| | help with ICC11
|
|
I have an expanded Handy Board, and version 5.0 of the ImageCraft C Compiler. I am running Windows 98. Setting up to talk to the Handy Board is a bit of an obstacle for me. Has anyone done it with the ICC11 compiler, or is there a site someone knows (...) (26 years ago, 23-Mar-99, to lugnet.robotics.handyboard)
|
| |
| | Simtek memory
|
|
A few weeks ago Duncan Orthner mentioned the Simtek memory chips on the HB newsgroup. They sounded like a good idea so i tried them. They work very well. But..... The HB may need a little modification to make them work rite. When the HB is powered, (...) (26 years ago, 23-Mar-99, to lugnet.robotics.handyboard)
|
| |
| | Re: PWM and executing 2 function at the same time
|
|
(...) Umm, not sure which 'pulses' you're refering to. How are you generating the pulses and what are they for? Do you mean the PWM going to the motor drivers? The HB can generate lots of different pulses 8^] and for question 2, i mean is (...) try: (...) (26 years ago, 23-Mar-99, to lugnet.robotics.handyboard)
|
