int potPin=A1;
int gPin= 6;
int potVal;
float LEDVal; 
int DT=500;
void setup(){
pinMode(potPin, INPUT);
pinMode(gPin, OUTPUT);
Serial.begin(9600);
}
 void loop(){
  potVal=analogRead(potPin);
  LEDVal=(5./1023.)*potVal;
  analogWrite(gPin,LEDVal);
  Serial.println(LEDVal);
  delay(DT);
 }