Audio Spectrum Visualizer Using Arduino & Matrix Display

Description

Audio Spectrum Visualizer Using Arduino & Matrix Display

Almost all of us have expensive or cheap music systems in our homes. Most musical concerts, festivals and nightclubs are accompanied by fancy disco lights to show visual effects according to music rhythm. So, I planned to build my own Audio Spectrum Visualizer that reacts to music or audio. For this, I used Arduino Nano as the main heart of this project, and 32×8 Dot Matrix Display, and a sound sensor.

The individual LEDs on the Dot Matrix Display will react according to the Analog audio signals that Arduino Nano receives through the sound sensor that is connected to its Analog pin. Arduino has a built-in ADC (Analog to Digital converter) input pin which can receive the Analog audio signals from the sound sensor and convert it to a digital signals.

Some days ago I have built a Music Reactive LED System Using ESP32 and WLED. You can also check this out.

Circuit Diagram

Components Required

• Arduino Nano
• MAX7219 Dot Matrix Display Module (8×32)
• Sound Sensor
• Connection Wires
• Breadboard
• 5 Volt Power Supply