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Reverse Photoresistor for volume control when nearing

RW74

Nov 17, 2023
1
Joined
Nov 17, 2023
Messages
1
How could I apply this to a speaker to reduce volume the closer a person gets to it?
 

danadak

Feb 19, 2021
714
Joined
Feb 19, 2021
Messages
714
Arduino and a distance sensor, use PWM in Arduino as a control voltage on a JFET voltage divider,
or a I2C variable resistor in a divider.....


I2C resistor, app circuits on datasheet :



Regards, Dana.
 
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