Electronics design

Attenuation
/ətɛnjʊˈeɪʃ(ə)n/
noun: the reduction of the amplitude of a signal, electric current, or other oscillation.

A simple plug and play motion-activated volume dimmer, or sound “attenuator”.

When motion is detected in front of the PIR sensor, the volume is gradually increased from 0 to 100%. After a period of no motion, the sound gradually fades away until triggered again.

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