I would like to perform a query that gives me the nodeID and the relative
sound level of a room. Nothing fancy or high calibration is required, just
some returned value that is low if it is quiet in the room, higher if
someone is talking nearby.
I see that there is a noise attribute but it always returns zero. I even
placed the mote on top of a loud radio speaker with no change in the
returned values (always zero).
Perhaps I have compiled something incorrectly? I originally installed TOS
1.1.11 and updated to 1.1.15-Dec2005cvs-1 Everything appears to compile ok
and I am able to query light and the voltage ok (which I assume means the
motes work with the MPR400CB sensorboard - with onboard mic).
Some simple questions:
1. Can I query the sound level of a room?
2. Is the noise attribute the correct one to use?
3. Do I need to activate a compiler option to make it work (I noted the raw
mic functions in the attributes file)?
Thanks for any info you can provide. If this is a FAQ, I could not find
it... feel free to point me to the appropriate documentation.
MARK BRAMWELL
Senior Systems Analyst - Richard Ivey School of Business
Phone: (519) 661-3714 - Fax: (519) 661-3485
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