const int ledPin = 9;
int analogPin = A0;
int val = 0;
void setup() {
  Serial.begin(9600);
  pinMode(ledPin, OUTPUT);
}
void loop() {
  val = analogRead(analogPin);
  analogWrite(ledPin, val / 4);
  Serial.print("Analog Value : ");
  Serial.print(val);
  Serial.println();
  delay(1000);
}