Once the circuit is all wired up and the Arduino is programmed, you are pretty much ready to go. I used masking tape to attach the microphone to the w...
Step 2: Setting Up the Circuit
I fed the electret microphone signal through a simple preamp circuit that I found online, then into an analog input on the Arduino. The LEDs are driven directly by the Arduino outputs. To control the music I tapped an output into the play/pause button on my CD player. With my particular CD player the signal needed to be held high at 5V and dropping it down to ground activated the button.
You can download the Fritzing file of the circuit I set up.