BS2 and Mini-A Ultrasonic Sensor
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Hi Russ,
Thanks for your reply. In using your Mini-A, did you monitor the
proportional voltage output that it has, or did you use the Echo output
directly? I'm hoping that the Echo output can be used directly so that an
A/D converter is not necessary. I'll use the A/D if needed, but I'm trying
to keep the parts count and costs down. Would you be willing to share a
copy of your programming? If so, my office e-mail address is:
<mailto:timm@c...>timm@c... .
Thank you,
Tim
At 10:19 AM 5/17/2004, you wrote:
>I have used the Mini-A ultrasonic. The device I am refering to is
>available from the surplus stores.
>
>This one works at 12v (8-15v). All other connections were at the TTL
>5 volt levels. I was able to connect it directly to the BS2 without
>any isolation or signal level problems.
>
>The working range was 12 inches (not 6 inches) to 120 inches. Our
>PBasic program displayed a distance in inches. The signal became
>unstable at distances closer than 12 inches. At a distance of 3 foot
>the "window" of detection is about 6 inches in diameter. I don't know
>how big an object has to be at that distance in order to be seen.
>
>I could not get the "D" pin to work as expected. Couldn't figure out
>what it was supposed to do that could not be done on one of the other
>pins.
>
>It is a neat little device to play with. I have not worked with a
>Polaroid ranger.
>
>Russ
>
>--- In basicstamps@yahoogroups.com, "Tim and Jo" <dema@t...> wrote:
> > Have any of you used the Mini-A ultrasonic ranging sensor from EDP
>Company
> > with a BS2? I'm interested in it and am wondering if any of you
>might have
> > some example BS2 code for it that you would be willing to make
>available for
> > me to take look at. What are the differences from the Polaroid
>ranger?
> >
> > Thanks,
> >
> > Tim
>
>
>
>
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>
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[noparse][[/noparse]Non-text portions of this message have been removed]
Thanks for your reply. In using your Mini-A, did you monitor the
proportional voltage output that it has, or did you use the Echo output
directly? I'm hoping that the Echo output can be used directly so that an
A/D converter is not necessary. I'll use the A/D if needed, but I'm trying
to keep the parts count and costs down. Would you be willing to share a
copy of your programming? If so, my office e-mail address is:
<mailto:timm@c...>timm@c... .
Thank you,
Tim
At 10:19 AM 5/17/2004, you wrote:
>I have used the Mini-A ultrasonic. The device I am refering to is
>available from the surplus stores.
>
>This one works at 12v (8-15v). All other connections were at the TTL
>5 volt levels. I was able to connect it directly to the BS2 without
>any isolation or signal level problems.
>
>The working range was 12 inches (not 6 inches) to 120 inches. Our
>PBasic program displayed a distance in inches. The signal became
>unstable at distances closer than 12 inches. At a distance of 3 foot
>the "window" of detection is about 6 inches in diameter. I don't know
>how big an object has to be at that distance in order to be seen.
>
>I could not get the "D" pin to work as expected. Couldn't figure out
>what it was supposed to do that could not be done on one of the other
>pins.
>
>It is a neat little device to play with. I have not worked with a
>Polaroid ranger.
>
>Russ
>
>--- In basicstamps@yahoogroups.com, "Tim and Jo" <dema@t...> wrote:
> > Have any of you used the Mini-A ultrasonic ranging sensor from EDP
>Company
> > with a BS2? I'm interested in it and am wondering if any of you
>might have
> > some example BS2 code for it that you would be willing to make
>available for
> > me to take look at. What are the differences from the Polaroid
>ranger?
> >
> > Thanks,
> >
> > Tim
>
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in the Subject and
>Body of the message will be ignored.
>
>Yahoo! Groups Links
>
>
>
>
[noparse][[/noparse]Non-text portions of this message have been removed]