This article is from the Diabetes FAQ, by Edward Reid edward@paleo.org with numerous contributions by others.
You can get a cable to hook the One Touch II and Profile meters to a PC
from the meter manufacturer, LifeScan. The cable includes some
electronics, not just a cable, so you probably don't want to make your
own -- but if you do, check out the schematics at either of these
sites:
http://www.sci.fi/~keytech/otcable.html
http://www.geocities.com/SiliconValley/Haven/5371/indexe.html
In the US the cable is free (or nearly so -- some mhd readers report
being quoted a small fee). Elsewhere, LifeScan lets each international
office set its own policy on cable distribution, and some are charging
substantial fees. North American telephone numbers are:
U.S.A. 1-800-227-8862
+1 408 263 9789
Canada 1-800-663-5521
LifeScan provides some software for downloading the data. The more
recent versions provide considerable additional analysis.
A wide variety of other software is available as of 1998. I can't keep
up with it. See Rick Mendosa's companion posting on software.
Most meter makers now offer some software to be used with their meters.
Third party software is more abundant for the One Touch meters because
LifeScan, unlike other makers, publishes the download protocol. You can
ask them to send you a copy of the specs, or download it from
One Touch II: ftp://vic.cc.purdue.edu/pub/lifescan.ot2
One Touch Profile: ftp://vic.cc.purdue.edu/pub/lifescan.pro
Since these are simple tty-oriented protocols, you can download the raw
data from your meter using a basic telecom program such as Kermit or
ZTerm.
I'll mention just one piece of software here. Vic Abell
<abe(AT)purdue.edu> has long provided a simple free DOS program to
download and analyze One Touch II and Profile data. Vic posts update
announcements to misc.health.diabetes and has been known to support his
program via the newsgroup. TOUCH2 interfaces to the RS-232 data port of
the One Touch, downloads the data on command, and provides a variety of
analytical displays. It's available in a couple of compressed forms via
anonymous ftp from vic.cc.purdue.edu in the /pub directory, or using a
web browser,
ftp://vic.cc.purdue.edu/pub/
 
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