Retro Analog VU Meter on Round dispalys (ESP32 and GC9A01)

Using the LVGL library and SquareLine Studio, I created a visualization that is not only functional, but also aesthetically enriches any audio system.

Mar 19, 2026

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GPL3+

Devices & Components

2

3mm LED

2

GC9A01 Round Display

2

ESP32

Hardware & Tools

1

Soldering Iron Kit

Software & Tools

Arduino IDE

Project description

Code

Code

cpp

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Documentation

Sch

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schematic.jpg

Image

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mircemk

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