DIY Analog VU meter with Arduino peak meter

The simplest and cheapest way to make a stand-alone analog quality VU meter with instruments from an old unusableaudio audio device.

Jul 5, 2024

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GPL3+

Components and supplies

2

LED (generic)

2

Operational Amplifier, Op Amp + Comparator + Reference

2

10kOhm potentiometer

1

Arduino Nano

2

Ammeter, AC

Tools and machines

1

Soldering kit

Apps and platforms

1

Arduino IDE

Project description

Code

Code VU

cpp

...

Downloadable files

Schematic

Op amp

Schematic.jpg

Schematic Peak meter

arduino

Schematic Arduino.jpg

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