Subject:
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Re: Rover based on Hanyboard is evolving well!
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 13 Sep 2000 21:38:56 GMT
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Viewed:
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1315 times
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Sure.. hey I thought I replied to the list.
Here's the picture so far.. note: lugenet doesn't allow jpeg attachments
so
You will get the image, lugenet will reject them.
I am hoping to put up a webpage soon. I've got a few sensors I am
designing
from scratch, a quad infrared for the sensor array, if it works the
sensor array should
be able to track the movement of a living object.. like a hand. I may
have it
track light as well. It's great to have so many ADC ports at my
disposal!
Also I am working on a Freequency to Voltage converter so the handyboard
can "hear" music. It will be funny to see the head bopping up and down
to a beat
to some tunes. I think it can be pulled off with some preprocessing.
I'm reading up
now on converting frequency to voltage. The voltage will vary with
frequency input.
It also looks like I can use:
Y3 5000 - 5FFF Read
Y4 6000-6FFF Write
Y5 6000-6FFF Read
And DIG8 is available
I Wish I had 2 write enebles available.. but I don't
I Think it's possible to add some glue logic with the
DIG8 Signal and Y4 to squeeze another Write enable port.
I'll just have to write some low level code.
That would give me access to two devices:
I was going to wire wrap a Digitalker Synthesizer
and with some additional glue logic I can add memory!
Am I dreaming? I looked at the HB Expansion schematic
and the HB schematic.. these signal lines look available.
Can anyone verify this?
Brat Wizard wrote:
>
> Reply to the list also please, as there are probably others who would
> (or will in the future) benefit from the discussion. Glad to hear my
> answer might solve your prob. I would still like to see photos of your
> project if you're willing to share them.
>
> John Whitten
> brat@naxs.com
>
>
> Jerry Normandin wrote:
>
> > Thanks for the input. I need long range because I calculate best
> > paths in a
> > room.
> > If you are in a Large room you need to look around and plot a
> > course. That's
> > why
> > I need distance. i am cheating right now. If I am out of range I
> > give it a
> > bogus large
> > number and I favor the right just in case both are out of range.
> >
> > I am going to try the dual timer approach.. I'll do a temporary long
> > distance
> > ping
> > since cutting the timer in half would slow the handyboard down by
> > half..
> > after I get a good read load the original value. GREAT ANSWER! That
> > should
> > work!
> > Brat Wizard wrote:
> >
> > > Jerry Normandin wrote:
> > >
> > > >
> > > > I'd much rather see the full 35ft with sonar. PLEASE Someone, • any
> > > > ideas? Did someone
> > > > modify the counter to run at half the frequency??? was there • terrible
> > > > loss of resolution?
> > >
> > > Hello Jerry-
> > >
> > > Why not build a dual-range system so that when you need the extra • accuracy
> > > you run the timer at full tilt and when you just want the extended • range
> > > you cut the timer in half? I suspect that knowing that you're 6.5 • inches
> > > away from something is a lot more important than knowing that • you're 414
> > > inches (34.55 feet) away...... yes? Another thing you could do, if • the
> > > extended range -and- accuracy are important is to delay starting • the
> > > counter (or taking your initial reading, or whatever) until "15 • feet" worth
> > > of time has past- and then turn on the counter. You should get the • same
> > > accuracy your 15 foot system gives you over the _second_ fifteen • foot
> > > range. You just can't do both at the same time, which isn't really • an issue
> > > anyway....
> > >
> > > > > if anyone is interested in pictures of the robot let me know.
> > >
> > > I would like to see your pictures. Just send them to the email • address
> > > above. If you would like to see some of my efforts, look at
> > > http://www.wizard.org. I don't have any photos of my latest • project
> > > (Gadget-II) up yet but you may enjoy my last project (Gadget).
> > >
> > > Good luck on your project!
> > >
> > > John Whitten
> > > brat@naxs.com
>
> --
> +----------------------------------------------------------------------+
> | "I'll give up my modem when they pry it from my cold, dead fingers!" |
> | John Whitten - brat@naxs.com http://www.wizard.org |
> +----------------------------------------------------------------------+
>
>
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Message is in Reply To:
 | | Rover based on Hanyboard is evolving well!
|
| Hi, I managed to build up a pan & tilt platform for my rover out of Servos, I hot glued them together and built a mount for my ultrasonic transducer out of perfboard. Also you need to make a baffle for the rear of the transducer or you do get (...) (24 years ago, 13-Sep-00, to lugnet.robotics.handyboard)
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