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luvv

Joined May 26, 2011
186
*disclaimer: if electronics knowledge where height, i would be the dwarf around here.*

That said, i think you could use a op-amp like the 741 as a comparator to sense the speaker on the smoke detector.

Then use a diode protected mosfet to power the motor from a separate battery.

Honestly tho, if this project has lives depending on it..i suggest you abandon it now

Best of luck

-luvv-
 
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