Vu Meter Circuit Diagram. So for a higher sound we will have higher value and lower value for a lower sound. The circuit diagram shows a very simple configuration employing two of the above ics in the cascaded form for producing a good 20 led sequencing bar type indication.
The main of this circuit is lm3914n or lm3915. This way i could easily test the vu meter. Pin number 4 and pin number 5 are connected to the ground connection.
A vu volume unit meter is a very useful device to show the audio level in audio devices from which a user can maintain a certain audio level and get rid of overloading the output.
A vu volume unit meter is a very useful device to show the audio level in audio devices from which a user can maintain a certain audio level and get rid of overloading the output. In the video above i added a potentiometer as a voltage divider between 9v and 0v so that the output would be somewhere in between. The circuit diagram shows a very simple configuration employing two of the above ics in the cascaded form for producing a good 20 led sequencing bar type indication. Which the external circuit is the same.
