const int PotPin=12;
const int LedPin=A0;
const int PotOut=A2;
unsigned int PotVal;
float Ledval;
float BrightPercentage;
void setup() {
  // put your setup code here, to run once:
  pinMode(PotOut, INPUT);
  Serial.begin(9600);

}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(PotPin, HIGH);
  PotVal=analogRead(PotOut);
  Ledval=(255./1023.)*PotVal;
  analogWrite(LedPin,Ledval);
  BrightPercentage=(100./255.)*Ledval;
  Serial.print("The brightness in percentage is: ");
  Serial.println(BrightPercentage);
}