This code and diagram will show you how to make a single LED react to music with a sound sensor, its based off of GraziCNU tutorial on instructables.com

Components:

 

  • Arduino Uno
  • 5 Jumper Wires
  • Breadboard
  • Sound Sensor
  • LED light

 

Instructions:

  • Wire the ground pin to ground on the sound sensor (GND)
  • Power pin (VCC) to 5V
  • Output (OUT) to A3
  • Connect the Anode (+) of the LED to VIN
  • Connect Cathode (-) to Digital pin 9
  •  Upload the code to Arduino, the LED should blink if there is sound in the area. If youre in a quiet place try snapping your fingers.
  • Play a song and watch it flash.

Video:

http://dai.ly/x2i0hif 

 

Materials can be bought here:

Arduino

http://www.adafruit.com/products/50

 

LED

http://www.radioshack.com/leds

 

Breadboard + Wires

http://www.radioshack.com/search?q=breadboard+wires

 

Sensor

http://www.amazon.com/Arduino-compatible-Mini-Sound-Sensor/dp/B00AF2GB1U

 

Original Post:

http://www.instructables.com/id/Sound-Reactive-LED-strip/?ALLSTEPS