int pin=A0;
int led=9;
int br=0;
int t=100;
void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(led,OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
br=analogRead(pin);
analogWrite(led,br/4);
Serial.print(" ");
Serial.print(br);
delay(t);
}