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Discussion Groups | BasicX | Advice needed


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Discussion forum for the BasicX family of microcontroller chips.

Advice needed - Author Unknown - Oct 25 22:30:00 2002

I am relatively new to physical computing and as part of an assignment I
need to connect AIRRS (Analog Infra Red Range Finding System; from
HVWTech) to the BX 24.
However, I am not sure how to do this and how can I use it as part of an
interactive project.
I was hoping that by connecting it to an ADC pin the voltage output (0 -
2.5V) will be converted to digital "high".
I think that I don't know how to use it and help will be highly
appreciated.

Thanks, Isaac [Non-text portions of this message have been removed]





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Re: Advice needed - Frank Manning - Oct 26 13:16:00 2002

From: <>

> I am relatively new to physical computing and as part of
> an assignment I need to connect AIRRS (Analog Infra Red
> Range Finding System; from HVWTech) to the BX 24.
> However, I am not sure how to do this and how can I use
> it as part of an interactive project.

I assume this is the device:

http://www.hvwtech.com/downloads/manuals/AIRRS_1_1.pdf

Although the manual doesn't say, I'd guess the device is based on
a Sharp GP2D12 IR rangefinder. We recently posted a new app note
for the BX-24. Check out:

http://www.basicx.com/Products/BX-24/bx-24appnotes.htm

The file is second from the top of the list.

> I was hoping that by connecting it to an ADC pin the
> voltage output (0 - 2.5V) will be converted to digital
> "high". I think that I don't know how to use it and help
> will be highly appreciated.

I'm not sure I understand. The BX-24 ADC pins can all be used for
either analog or digital I/O, but for this device, it's not clear
to me why you wouldn't want analog input.

-- Frank Manning
-- NetMedia, Inc.




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Re: Advice needed - Frank Manning - Oct 26 13:28:00 2002

I wrote:

> http://www.hvwtech.com/downloads/manuals/AIRRS_1_1.pdf
>
> Although the manual doesn't say, I'd guess the device is
> based on a Sharp GP2D12 IR rangefinder.

Actually the manual does say. My reading skills need some
improvement, I guess.

-- Frank Manning
-- NetMedia, Inc.




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