#define led 10


void setup() {
  // put your setup code here, to run once:
pinMode(led, OUTPUT);


}

void loop() {
  // put your main code here, to run repeatedly:
int pot_value=analogRead(A0);
int brighness=  map(pot_value,0,1024,0,255);
analogWrite(led,brighness);
delay(10);

}