Light sensor

Sean Moss-Pultz sean_mosko at
Fri Dec 1 02:03:02 CET 2006

On 12/1/06 12:05 AM, "Richard Franks" <richard.franks at>

> I'm assuming that acquiring/monitoring the microphone input doesn't come
> for free.. but ambient noise level could also be used as an indicator of
> activity - either polling for one second every minute or so, or (if the
> ADC can be directed to acquire at a lower data rate) a continuous sample
> over a longer period of time -- you don't require too much resolution to
> monitor the presence of ambient noise.

What do you mean "doesn't come for free"?


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