//Controlling LED brightness using a potentiometer

int ledPin=3;
int analogPin=0;
int val=0;

void setup() {
pinMode(ledPin, OUTPUT);
Serial.begin(9600);
}

void loop() {
val=analogRead(analogPin);
Serial.println(val);
val=map(val,0,1023,0,255);
analogWrite(ledPin,val);
}