class2_potentiometer_Control_LED

/*
 Simple sketch to show output of potentiometer
 value on the Serial Output Window and controlling
 the brightness of an LED with pwm.
 3/18/2012
 */

int potPin = A0;// potentiometer attached to A0
int potVal = 0; // potentiometer value 0-1023
int pwmPin = 3; // pin for LED
int pwmVal = 0; // PWM value, based on potVal, 0-255

void setup(){
  Serial.begin(9600);
  pinMode(pwmPin, OUTPUT);// not necessary, but is best practice
}

void loop(){
  potVal = analogRead(potPin);
  Serial.println(potVal);

  pwmVal = map( potVal, 0, 1023, 0, 255 );
  analogWrite(pwmPin, pwmVal);
}