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Topic: Simple Volume Control (Read 5 times) previous topic - next topic

myDuino

I would like to use my arduino to an simple volume control. I can do the programing and the digital side of project, but I don't know how can i do the variable resisting to the line signal.

I attached a basic image to better understanding.



I would like to control the volume for example web or an rotary encoder or buttons but this side I can do.
I don't need any amplifiering just decrease the line signal

Thank you anybody to help

(Sorry for my English)

AWOL

Would a digital potentiometer do the job?
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

myDuino

In normal case I use a simple 1 MOhm potentiometer for this job. I would like to replace the potentiometer with arduino

AWOL

You could attach a servo to the shaft of the 1Mohm potentiometer, and use the Arduino to drive servo.
Or you could use a digital potentiometer in place of the 1Mohm potentiometer, controlled by the Arduino.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

Grumpy_Mike

You need to attach something to your arduino to do this, you can't do it directly.
The first suggestion of a digital pot sounds good to me.

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