Buzzer & Microphone Combo (Dunn) Picks up the audio output, a tone, from the buzzer and analog write that into the light valve.
![](../../wp-content/uploads/2023/02/IMG_9632-1-973x1297.jpg)
Buzzer & Microphone Combo (Dunn) Picks up the audio output, a tone, from the buzzer and analog write that into the light valve.