Re: TI-H: Touch screens

To: <ti-hardware@lists.ticalc.org>
Subject: Re: TI-H: Touch screens
From: "Jon Olson" <morph@jmss.com>
Date: Fri, 8 May 1998 20:04:31 -0400
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: ti-hardware@lists.ticalc.org


Cept of course...that you're wrong. You can buy cheap, low power, Analog
outputting touch screens several places. Just hook up a adc, and maybe an
AVR or a PIC...boom...you're done

-----Original Message-----
From: Brian Carpenter <bc2207@hotmail.com>
To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
Date: Friday, May 08, 1998 4:21 PM
Subject: Re: TI-H: Touch screens


>
>Do you have any idea how much work it would take to get a touch screen
>into a calc?  Besides, they have to have their own processors and
>software to run. (they would have to communicate with the calc using
>digital I/O's.  This means that it would probably have to be external
>and have some giant driver to run it.  The point is, unless they've
>figure out a way to shrink an electronic circuitry 2 inches thick down
>to some thing manageable, it ain't going to happen.  Also, they take a
>lot of power.
>
>Well, sorry if I burst your bubble, but I know this stuff cause my dad
>works with them all the time.
>
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