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
MEMS Microphone\nTDK InvenSense Captures audio input for real-time spectrum analysis - fulfills microphone input requirement ICS-43434
WS2812B RGB LED\nXINGLIGHT 16 individually addressable LEDs for 16-column frequency display with multiple color patterns XL-5050RGBC-WS2812B
3.5mm Audio Jack\nCinch Connectivity Solutions Johnson Provides 3.5mm line input for audio spectrum analysis - fulfills line input requirement 105-0851-001
Rotary Encoder\nBourns Inc. Sensitivity adjustment control for audio input levels - fulfills sensitivity adjustment requirement PEC11R-4215F-S0024
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

6 unique parts, 21 total components

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