/* Analog In and Out
 * ------------
 * by Jeff Gray
 *
 * Turns on two LEDs, one based digitally (on or off) and one based on a potentiometer
 * or analog device of some sort, giving a value from 0 (GND) to 5V.
 */

//Pins
int ledPin = 13;                 
int pwmPin = 9;
int analogPin = 0;

//Variables
int analogValue;

void setup()
{
  pinMode(analogPin, INPUT);          // read input from pin
  pinMode(ledPin, OUTPUT);      // sets the digital pin as output
  pinMode(pwmPin, OUTPUT);      // sets the analog pin as output (analog output is only available
                                // on pin 9 and 10)
}

void loop()
{
  //Turn on Digital LED - pin 13
  digitalWrite(ledPin, HIGH);
  
  //Read in Analog from Pin 0, and then send it out to Pin 9
  analogValue = analogRead(analogPin);
  analogWrite(9,analogValue/4);
}