A/D converter for a joystick

Archiver

can anyone suggest a good a/d converter IC that works well with the
stamp? I was thinking of using the ADC0831CCN:
http://www.jameco.com/cgi-bin/ncommerce3/ProductDisplay?
prmenbr=91&prrfnbr=3029&cgrfnbr=501&ctgys=

it has two inputs which is what I need: I'm building a joystick which
uses potentiometers to encode joystick position, so I only need an x
and a y potentiometer. I saw some a/d converters with auto-calibrate
fetaures....would this be helpful in this type of application? Maybe
when the potentiometers wear down and give different resistances, the
auto-calibrate will help...? Thanks.

Archiver

Technically, you can connect a joystick to the BASIC Stamp by using the
RCTIME function. Here's a link to an article that will show you how (Column #70

from Nuts & Volts "Stamp Applications):

<A
HREF="http://www.parallax.com/Downloads/Documentation/nv/v2/col/NV70-Using_MAX72\
19_LED_Display_Driver_with_LEDs.pdf">
http://www.parallax.com/Downloads/Documentation/nv/v2/col/NV70-Using_MAX7219_LED\
_Display_Driver_with_LEDs.pdf</A>

-- Jon Williams
-- Parallax



In a message dated 6/3/2003 11:11:19 AM Central Standard Time,
hard-on@t... writes:

> can anyone suggest a good a/d converter IC that works well with the
> stamp? I was thinking of using the ADC0831CCN:
> http://www.jameco.com/cgi-bin/ncommerce3/ProductDisplay?
> prmenbr=91&prrfnbr=3029&cgrfnbr=501&ctgys=
>
> it has two inputs which is what I need: I'm building a joystick which
> uses potentiometers to encode joystick position, so I only need an x
> and a y potentiometer. I saw some a/d converters with auto-calibrate
> fetaures....would this be helpful in this type of application? Maybe
> when the potentiometers wear down and give different resistances, the
> auto-calibrate will help...? Thanks.
>



[noparse][[/noparse]Non-text portions of this message have been removed]

Archiver

yeah, but I read that that way of doing it has problems with
temperature variations, since the basic stamp is going to be on an
underwater vehicle, the temperature will probably change a lot.. Will
an a/d converter IC have the same temperature problems?

--- In basicstamps@yahoogroups.com, jonwms@a... wrote:
> Technically, you can connect a joystick to the BASIC Stamp by using
the
> RCTIME function. Here's a link to an article that will show you
how (Column #70
> from Nuts & Volts "Stamp Applications):
>
> <A
HREF="http://www.parallax.com/Downloads/Documentation/nv/v2/col/NV70-
Using_MAX7219_LED_Display_Driver_with_LEDs.pdf">
> http://www.parallax.com/Downloads/Documentation/nv/v2/col/NV70-
Using_MAX7219_LED_Display_Driver_with_LEDs.pdf</A>
>
> -- Jon Williams
> -- Parallax
>
>
>
> In a message dated 6/3/2003 11:11:19 AM Central Standard Time,
> hard-on@t... writes:
>
> > can anyone suggest a good a/d converter IC that works well with
the
> > stamp? I was thinking of using the ADC0831CCN:
> > http://www.jameco.com/cgi-bin/ncommerce3/ProductDisplay?
> > prmenbr=91&prrfnbr=3029&cgrfnbr=501&ctgys=
> >
> > it has two inputs which is what I need: I'm building a joystick
which
> > uses potentiometers to encode joystick position, so I only need
an x
> > and a y potentiometer. I saw some a/d converters with auto-
calibrate
> > fetaures....would this be helpful in this type of application?
Maybe
> > when the potentiometers wear down and give different resistances,
the
> > auto-calibrate will help...? Thanks.
> >
>
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]