Newsgroups: comp.robotics
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From: cs911225@ariel.yorku.ca (KEN E WILLMOTT)
Subject: Re: HELP: Simple A/D converter?
Message-ID: <1993Sep8.164104.2126@newshub.ariel.yorku.ca>
Sender: news@newshub.ariel.yorku.ca (USENET News System)
Organization: York University, Toronto, Canada
References: <CD09zt.MK2@news2.cis.umn.edu> <1993Sep8.155957.22899@titan.tsd.arlut.utexas.edu>
Date: Wed, 8 Sep 1993 16:41:04 GMT
Lines: 23

>horton@molbio.cbs.umn.edu (Robert Horton) writes:

>>The temperatures I need to monitor are in the range of 25 to 100oC, and the
>>measurement must be to within 0.5oC (more precise is probably better). I'd
>>
>>Any suggestions, hints, comments, clues, tips, or ideas would be most welcome.


>Here's a few cheap alternatives:

>1).  Pick up the 68HC11 EVBU.  I think it's around $80.  It has 8 8 bit A/D's that you could use, and you could
>     download the info via RS232 to your host pc.  The hc11 is perfect for this sort of thing. . . .

>2).  If $80 is too much, you could also just build the hc11 board yourself.  You could probably get away with
>     just the HC11, a serial driver/receiver, and a ROM.  Look at the miniboard and also the powerglove
>     interface available at apple.com or something like that. . . .

>Andrew Wheeler

Why the ROM? You can run software residing in the HC11's EEPROM.

	-Ken

