├── .gitignore ├── .vscode └── extensions.json ├── README.md ├── README.md.backup ├── electronics ├── 74125.pdf ├── ESP_32_DEVKIT_PINOUT.png ├── Eagle_libraries.zip ├── LED_Module_Eagle.zip ├── LED_Module_Gerber.zip ├── MAX9814.pdf ├── Main_board_BOM.txt ├── Main_board_schematic.pdf ├── Main_board_schematic.png ├── Main_board_schematic_Eagle.zip ├── README.md ├── README.md.backup ├── SDA_3_analog_simulation.ipynb ├── TDA2822.pdf ├── WS2812B.pdf ├── notebook_simulation_filter.png └── soldering_template_audio_spectrum_display.pdf ├── generator ├── README.md ├── README.md.backup ├── bands_from_bins.txt └── freq_bands.py ├── img ├── audio_spectrum_display_acrylic_fft_cut_laser_project.png ├── audio_spectrum_display_acrylic_fft_fastled_esp32_1.jpg ├── audio_spectrum_display_acrylic_fft_fastled_esp32_2.jpg ├── audio_spectrum_display_acrylic_fft_fastled_esp32_3.jpg ├── audio_spectrum_display_acrylic_fft_fastled_esp32_5.jpg ├── audio_spectrum_display_acrylic_fft_fastled_esp32_6.jpg ├── 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