#include <popx2.h>  // POP-X2 Board

const int analogOutPin = 19; // Analog output pin that the LED is attached to

int pos = 0;        // value read from the pot
int outputValue = 0;        // value output to the PWM (analog out)

void setup() {
  // initialize serial communications at 9600 bps:
  OK();
  glcdMode(3);
  setTextSize(2);
}

void loop() {
  // read the analog in value:
  pos = knob();
  // map it to the range of the analog out:
  outputValue = map(pos, 0, 1000, 0, 255);
  // change the analog out value:
  analogWrite(analogOutPin, outputValue);
  // print the results to the serial monitor:
  glcd(1, 2, "%d ",outputValue);

  // wait 2 milliseconds before the next loop
  // for the analog-to-digital converter to settle
  // after the last reading:
  delay(2);
}