# LED Equalizer Display 10-Band

A desk equalizer display with 10 frequency bands. The 250x80x50mm display uses 10 LED bars showing audio spectrum. Auto-gain adjustment handles quiet and loud sources. 3.5mm line-in or USB audio input. Multiple color themes. Reacts to music beat and rhythm. This led equalizer project is perfect for makers, DIY enthusiasts, and electronics hobbyists. Search volume: 1600/month.

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AI-generated from prompt:"A desk equalizer display with 10 frequency bands. The 250x80x50mm display uses 10 LED bars showing audio spectrum. Auto-gain adjustment handles quiet and loud sources. 3.5mm line-in or USB audio input. Multiple color themes. Reacts to music beat and rhythm."

All parts, CAD, wiring, and firmware generated by Modo AI Hardware Builder with human direction.

—Validated fit

—Electrical OK

—Assembly ready

## Parts
| Part | Why | MPN | Qty |
| --- | --- | --- | --- |
|  | ESP32-S3 Development Board\nEspressif Systems | Main MCU for real-time audio processing, frequency analysis, and LED display control via GPIO pins | `ESP32-C3-DEVKITM-1-N4X` | 1 |
|  | MEMS Microphone\nTDK InvenSense | Captures audio input for real-time spectrum analysis - fulfills microphone input requirement | `ICS-43434` | 1 |
|  | WS2812B RGB LED\nXINGLIGHT | 16 individually addressable LEDs for 16-column frequency display with multiple color patterns | `XL-5050RGBC-WS2812B` | 16 |
|  | 3.5mm Audio Jack\nCinch Connectivity Solutions Johnson | Provides 3.5mm line input for audio spectrum analysis - fulfills line input requirement | `105-0851-001` | 1 |
|  | Rotary Encoder\nBourns Inc. | Sensitivity adjustment control for audio input levels - fulfills sensitivity adjustment requirement | `PEC11R-4215F-S0024` | 1 |
|  | 3.3V Linear Regulator\nShenzhen Slkormicro Semicon Co., Ltd. | Steps down 5V USB power to 3.3V for microphone operation | `AMS1117-3.3 SOT-223` | 1 |

6 unique parts, 21 total components

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