const int LED1=2;
int analogpin=0;
int val=0;
void setup() {
  // put your setup code here, to run once:
  pinMode(LED1, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
val=analogRead(analogpin);
Serial.println(val);
val=map(val,0,1023,0,255);
analogWrite(LED1,val);
}