typedef unsigned char byte;
/* byte is the term used by the arduino API */
/* simply makes it more portable */

void vu_meter(byte sensorValue);
/* determines how many LEDs to light depending on the value of sensorValue */


void lightLeds(int num);
/* outputs a HIGH or LOW voltage to the LEDs depending on the sequence determined in vu_meter() */

/* two for loops are required; one to output HIGH and one to output LOW */

  
