Files | 21 Band Audio Spectrum Analyzer

Artwork Files. Order boards at: jlcpcb com

x-zip-compressed - 200.85 kB - 10/30/2025 at 22:22

SKETCH in Arduino IDE - using a 21 x 16 matrix display panel.

x-zip-compressed - 1.41 MB - 10/30/2025 at 22:19

SKETCH in Arduino IDE - using a 21 x 20 matrix display panel.

x-zip-compressed - 1.36 MB - 10/30/2025 at 22:17

Assembly Drawing

Portable Network Graphics (PNG) - 249.26 kB - 05/24/2023 at 03:34

Schematic Diagram in PDF

Adobe Portable Document Format - 142.44 kB - 05/15/2023 at 00:52

Full EasyEDA design container

JavaScript Object Notation (JSON) - 1.27 MB - 05/15/2023 at 00:50

Short Clip

MPEG-4 Video - 34.85 MB - 05/14/2023 at 18:56

Gerber_21-Bands-Audio-Spectrum-Analyzer-Simp_PCB-21-Bands-Audio-Analyzer-Simple_2025-10-30.zip Artwork Files. Order boards at: jlcpcb com x-zip-compressed - 200.85 kB - 10/30/2025 at 22:22		Download
Spectrum_Analyzer_21x16_Red_ESP32.zip SKETCH in Arduino IDE - using a 21 x 16 matrix display panel. x-zip-compressed - 1.41 MB - 10/30/2025 at 22:19		Download
Spectrum_Analyzer_21x20_Red_ESP32.zip SKETCH in Arduino IDE - using a 21 x 20 matrix display panel. x-zip-compressed - 1.36 MB - 10/30/2025 at 22:17		Download
Assembly_Top.PNG Assembly Drawing Portable Network Graphics (PNG) - 249.26 kB - 05/24/2023 at 03:34		Preview

Schematic_21Ch Analyzer ESP32 - Full_2023-05-14.pdf Schematic Diagram in PDF Adobe Portable Document Format - 142.44 kB - 05/15/2023 at 00:52		Preview

PCB_PCB - 21Ch Analyzer ESP32 - Full Rev2.0_2023-05-14.json Full EasyEDA design container JavaScript Object Notation (JSON) - 1.27 MB - 05/15/2023 at 00:50		Download
Moonlight Segment_02.mp4 Short Clip MPEG-4 Video - 34.85 MB - 05/14/2023 at 18:56		Download