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[DPRG] Accelerometer Questions

Subject: [DPRG] Accelerometer Questions
From: Frank & Gail Elia elia_frank at hotmail.com
Date: Wed Nov 20 18:12:00 CST 2002

Has anyone worked with the ADXL105 or similar from Analog Devices?

I need to find a way to tell if I am moving underwater.This past weekend I 
found myself diving in Lake Travis. At the bottom of the Lake it was so dark 
even powerful lights didn't help. The problem was having no reference, I 
could not tell if I was ascending/descending without constantly monitoring 
my dive computer. What I want is a simple device that will tell my if I'm 
going up or down via a simple audio tone.

You could monitor changes in pressure, but it seems an accelerometer would 
do the job more simply, but I'm open to suggestions.


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