https://github.com/antonioberna/spectrum-analyzer

ESP32 Spectrum Analyzer implement FFT (radix-2) in C++
https://github.com/antonioberna/spectrum-analyzer

cpp embedded engineering esp32 fft platformio radix-2 spectrum-analyzer

Last synced: 13 days ago
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ESP32 Spectrum Analyzer implement FFT (radix-2) in C++

• Host: GitHub
• URL: https://github.com/antonioberna/spectrum-analyzer
• Owner: AntonioBerna
• License: gpl-3.0
• Created: 2025-01-21T22:19:09.000Z (14 days ago)
• Default Branch: master
• Last Pushed: 2025-01-21T23:06:42.000Z (14 days ago)
• Last Synced: 2025-01-21T23:26:24.682Z (14 days ago)
• Topics: cpp, embedded, engineering, esp32, fft, platformio, radix-2, spectrum-analyzer
• Language: C++
• Homepage:
• Size: 5.07 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# spectrum-analyzer

![GitHub License](https://img.shields.io/github/license/antonioberna/spectrum-analyzer)

![GitHub repo size](https://img.shields.io/github/repo-size/antonioberna/spectrum-analyzer)

![GitHub Created At](https://img.shields.io/github/created-at/antonioberna/spectrum-analyzer)

## Demo

https://github.com/user-attachments/assets/eb3b91cd-cf6a-4602-b6fd-9f211323806a

> [!TIP]

> For more information you can access the detailed [explanation of the real-time spectrum analyzer](https://github.com/AntonioBerna/spectrum-analyzer/blob/master/pdf/spectrum-analyzer.pdf). The file contains several technical aspects ranging from computer science, electronics to signal theory and embedded devices. P.S. For now the explanation is only in Italian.

## Requirements

The project requires the following components:

- ESP32 DevKit V1

- OLED Display 128x64

- KY-037 Microphone with LM393 Comparator

The following is the schematic of the project:



    



> [!NOTE]

> You can find the Fritzing project file in the `.github/fritzing/` directory.

> [!WARNING]

> You need to have the [PlatformIO](https://platformio.org/install/ide?install=vscode) extension installed on your Visual Studio Code.

## Mini docs

If you want to use the project, you need to clone the repository with the following command:

```

git clone https://github.com/AntonioBerna/spectrum-analyzer.git

```

Then you need to open the project with Visual Studio Code and upload the code to the ESP32 DevKit V1.